ISG Headquarters


Meet the team behind ISG Headquarters

Mag. Robert Liska

Senior Consultant


Following the completion of his business administration studies with specialization in personnel and marketing at the University of Innsbruck, Robert Liska began work in sales at a gastronomy company before he switched to an internationally successful express logistics service provider, where he was responsible for Western Austria and South Tyrol.

After his regional change from Innsbruck to Vienna, he decided (based on his deep interest in the personnel area and his long-term specialization during the course of his studies) to change his area of responsibility and began work at the world’s largest personnel services provider in fixed job placement. His focus here was on technical and commercial positions. In addition to application management and the conceptualization of job advertisements, his main tasks here were conducting interviews and the resulting selection of the most suitable candidates.

In order to further and more directly deepen himself in the human resources area, Robert Liska decided to change to a personnel consulting agency headquartered in Vienna’s first district, where he specialized in sales as well as technical and IT jobs.

In September 2013, Robert Liska joined ISG as a Personnel Consultant. Since 2014 he is main contact person for the topic Outplacement and executes frequently Outplacement-Consultings. His focus is on sales, IT, and technical positions. Important for him is seeing both the personnel-seeking company as well as the job-seeking applicant as customers!

Motto: “If you stop becoming better, you stop being good.”


Mag. Elifa Velagic

Senior Consultant


Elifa Velagic completed her studies in International Business Administration with an emphasis on International Business, Human Resource Management and Austrian & European Labour and Employment Law.

During her studies she participated in several exchange programs in Kiev, Hanoi or Yogyakarta and got the possibility to enhance her technical and intercultural competences. She also gained practical experience from several internships, especially in the field of recruiting at a well-known Austrian company.

At the end of 2010 Elifa Velagic started her career at ISG. As a Consultant she is responsible for international Search & Selection Projects and supports customers of different sectors and industries.

Motto: „To be able to start is strength. To be able to finish is power.” Lao-Tse


Mag. Birgit Prochazka

Senior Consultant


For nearly 10 years Birgit Prochazka (née Geitzenauer) was employed of a well-known Austrian hospital as a nurse. Adittionally she worked on nursing-quality management and introductory programs for new employees and mentoring of nursing students.

She studied psychology with focus on industrial and economic psychology. In 2000 she received an honours award by the Austrian Federal Ministry of Education, Science and Culture for outstanding studying performances.

She has been in the consulting business since 2001. She worked with a top management consulting and education firm, the Management Zentrum St. Gallen, serving clients in Austria, Germany and Switzerland. Particularly, she dealt with soft skills topics: Change-Management, Leadership, Corporate Culture and Human Resources Management. With reference to Human Resources her responsibilities included the development of concepts and the execution of management education programs. Focus was on issues arising from the health care sector.

This was the reason for combining her practical experience in health care, psychology and consulting to start in recruiting company ISG.

Since 2004 she has worked for ISG and is ISG´s specialist in health care, medical devices and the pharmaceutical industry in Austria. The power of attorney was assigned to her in 2006.


  • Personnel Search & Selection
  • Assessment Center
  • Potential Analysis
  • Customer care and acquisition of new clients

Mag. Brigitte Fegerl

Senior Consultant


After graduating in Business Studies with a specialisation in HR-Management from the Vienna University of Economics and Business (WU Wien), Brigitte Fegerl worked in different areas, e.g. HR-Management, for a leading telecommunication company for three years.

Subsequently she worked for an international recruitment agency and deepened her knowledge and interest for HR -Management. Since 2007 she has been a team member of ISG in Vienna. As a Consultant she assists companies from different branches and sectors with recruitment and selection. She puts special emphasis on service-oriented and appreciative support as well as on excellent customer relations.


  • Recruitment and Selection of Personnel
  • Coaching of Job-Applicants
  • Assessment Center
  • Customer Acquisition and Customer Support

Motto: „Joy is the Essence of Success“


Mag. Silvia Karnitsch

Senior Consultant, Bewerbungs- & Karrierecoach


During her studies of organizational- & economic psychology and a 2 year fulltime course of market communication & advertising Silvia Karnitsch was working at renowned advertising agencies as market researcher and strategic planner.

After finishing her studies (focus on diagnostics & economic psychology) in 2006 she conducts her career as international sales & marketing specialist (CEE & Asia) at the worldwide leading company for psychological computerized test procedures.

Business Development, establishing new partner agencies around the world, consulting of HR clients, and analysing and improvement of HR solutions were her main tasks.

She supported companies & institutions with the implementation of personnel selection- and development tools, held workshops and trainings (inland & abroad), and she was strongly cooperating with the intern Research & Development and IT department to develop new tools.

For a deeper and more direct HR access she decided to join ISG Vienna in October 2008. She is consultant with a focus on sales positions. Her clients are from industry, trading, science and economic. She also supports job seeking persons as well as persons who are looking for a new career opportunity as application- & careercoach.

What counts for her: open and direct communication with clients AND applicants, fast and longlasting results, satisfied customers at company side AS WELL AS at application side.

Motto: When walking – walk! When sitting – sit! And above all: don’t seesaw.


Olympia Anna Blanck, MA

Senior Consultant/Executive Search & Prokurist


Ms. Blanck studied Economics and Business Psychology with a focus on Human Resource Management at the University of Applied Sciences in Wiener Neustadt.

She is originally from Bratislava where she gained extensive professional experience within an international working environment.

Her professional career commenced at the Delegation of the European Commission, furthermore she worked in an international marketing agency for cross-border projects and she carried out work for a law consultancy with a focus on Central & Eastern Europe.

Maintaining a consistently high standard of work, enthusiasm and intercultural competence gained through her experience puts Ms. Blanck in the position to be a competent contact partner for national and international clients.

Her areas of expertise:

  • Executive Search / Headhunting
  • International recruiting with a focus on Austria and Central & Eastern Europe
  • Personnel consulting, search & selection of managers- and specialists positions
  • Interim management
  • Coordination of cross-border projects in the DACH region (Germany, Austria, Switzerland) as well as in CEE region.
  • Career consultancy.

Her industry focus:

Industrial sector: automotive, aviation, chemical industry, food processing, packaging industry, energy and construction
Service sector: legal consultancy, tax and audit advisory, marketing and advertising, financial services, tourism and transport
Trade: import, export, retail, wholesale
Motto: „The journey is the destination” (Confucius)


Katharina Rudolf, MA

Managing Partner

Horneckgasse 10
A-1170 Vienna


As part of her bachelor’s degree in “Management – Entrepreneurship”, Katharina Rudolf has specialized in HR management and gained professional experience in this area. While studying for her master’s degree in “European Economy & Business Management”, she worked in an Austrian boutique recruitment consultancy, where she gained experience in particular in the areas of IT and telecommunications, finance, industry and in the start-up industry.

Katharina Rudolf has been Managing Partner of the ISG in Vienna since 2018 and serves currently national and international clients in the areas of IT, industry and healthcare.

Her IT affinity and strong customer and candidate-driven approach characterizes her work as well as trust, discretion and flexibility.

Personal industry focus:

  • General Industrials
  • Packaging Industry
  • IT & New Technologies
  • Healthcare & Life Science
  • Chemicals & Materials
  • Start-up Industry

Motto: “Hire Character. Train Skill” (Peter Schutz)


Mag. Thomas Bauer

Managing Partner


After completing his studies in commercial sciences with focus on marketing and logistics at the University of Economics in Vienna, Thomas Bauer started his career as salesman and project manager in an IT personnel service company, where he gained his initial experiences in finding specialists with very specific skill sets.

After an excursion into the branded article industry as key account manager he began his career in the logistics sector and joined a young express transport company, where he worked his way from salesman to branch manager to operations director.

2003 he changed to a subsidiary of an international express service provider and became managing director of the Austrian and Hungarian national organizations. Thomas Bauer worked at this company for more than 10 years and also provided support with interim management tasks in other Eastern European countries. Personnel development, finding and fostering the appropriate team members as well as a modern leadership concept were always key elements of his management goals.

2014 he accepted the position of operations director in the German affiliate company and managed a turnaround process until the sales of the organization in the summer of 2016.

After a short employment at the express subsidiary of a large Austrian forwarder, he finally fulfilled his long-held ambition to become a self-employed consultant and partner in the area of personnel management and, thus, became partner of ISG focusing on transport and logistics.

He specializes in positions at all levels in the logistics, transport and SCM area and supports his clients with the search and selection of the best candidates in this very competitive market through his experiences and his network.

Motto: “The secret to success is to understand the viewpoint of others.” (Henry Ford)


Dr. Gerhard Klein

Senior Consultant


In addition to studying journalism and political science at the University of Vienna, Gerhard Klein worked for ORF (Austrian Radio and TV Station).

After graduation he worked as an editor in a publishing house for seven years, where he acquired proficiency and experience in the media sector. Then he changed to ” the client side ” and was (again, seven years) responsible for public relations and various prevention projects for “Aids Hilfe Wien”. He is the winner of the Print-Oscar (best PR project in Austria), was Head of the International Fundraising Group, Executive Editor of “Radio PosiHIV ” and chief editor of the television series “TV + “.

For two years he took over the PR of “SDW” (addiction and drug coordinaton in Vienna) and also served as press spokesman for the Vienna drug coordinator. In this position he worked closely with the City of Vienna.

Since 2009 he has been working as a consultant for ISG and supports his customers in the fields of:

  • Staffing / Recruiting
  • Executive Search
  • Newplacement

Motto: „Today is the beginning of the rest of your life“ Carpe diem


Ing. Andreas Lassel

Managing Partner


After passing his final exams at the Higher Technical College for Mechanical Engineering Andreas Lassel commenced his professional career in the field of construction of specialised mechanical applications.
Besides being responsible for technical purchases he quickly took on the running of the design department as well as overseeing the production and installation of specialised machinery.

Due to his commitment and his outstanding technical and management knowledge he was entrusted with the complete running of the technical branch and in addition also taking on matters for the Human Resource department.

He progressed his technical career in a young and innovative company as leader of Research and Development for fully automated glass facade systems. Subsequently he took his interest in the area of Human Resources as opportunity to retrain and qualified as Communications Trainer as well as completing studies in Personnel Development and Management and as a Career Advisor.

He managed to implement his newly gained knowledge with great aptitude in a large Viennese non profit organisation which specialised in training, coaching and personnel placement. He fulfilled his role as Career Advisor and Coach with great success in both placement and turn over that he was additionally entrusted to take on the responsibility as Team Leader Deputy.

Since 2009 Andreas Lassel is part of the team of ISG-Personnel Placement & Consulting working throughout Austria. The key areas of his responsibilities are in Personnel Advise, Personnel Development and Executive Search.

Numerous clients over a variety of business establishments appreciate to liaise with Andreas Lassel due to his competence, commitment and reliability. His ability of working with dedication, discretion, loyalty and fairness earns him the respect of both business and candidates.

Motto: „When the wind of change is blowing some build walls and others wind mills.“


Mag. Irmgard Richter-Irschik

Senior Consultant


Irmgard Richter-Irschik completed her studies in Business Adminstration with an emphasis on Human Resource Management and Austrian & European Labour and Employment Law.

She gained working experience in the fields of tax and business consulting and legal advice as well as in the training and occupational field.

In order to further deepen her knowledge in human resources, Irmgard decided to change to ISG Vienna as a Senior Consultant in 2012.

Within ISG Group Irmgard focuses on the health care and medical devices sector as well as on the industry sector in Austria.

She also supports job seeking persons as well as persons who are looking for a new career opportunity as application- & careercoach.

Her main focus is:

  • Personnel Search & Selection
  • Headhunting
  • Coaching of Job-Applicants
  • Assessment Center
  • Customer Acquisition and Customer Support

Motto: “To reach the possible, one must strive for the impossible.” (Herman Hesse)


Mag. Martina Petzl

Managing Partner


Martina Petzl began her professional career after her studies of business management at the University of Graz. After a two-year stint with a marketing agency for tourism in Graz, she began working in the HRM department of the Bundesrechnungszentrum GmbH. Her scope of duties included personnel development, recruiting and personnel marketing as well as media and public relations on the job market.

Furthermore, she was entrusted with designing and implementing various projects for the management board (e.g. HR and FM benchmarks, potential and employee satisfaction analyses, affirmative action plans, re-employment strategies after (maternal) leave, development of workforce compensation plans, re-organisation of personnel administration to SAP).

Before venturing into freelance personnel consultancy, Martina Petzl worked at ORF, the Austrian Broadcasting Corporation, on a comprehensive redesign of ORF’s HR management focusing on the development of “ORF-Recruiting” as the main service entity within the media enterprise.

Due to her highly developed analytical abilities Martina Petzl can quickly master the most difficult problems and situations and conceive the suitable solutions. Her strengths also include a high sense of responsibility, cost and budget consciousness as well as relevant in-depth knowledge and dedication.


  • personnel development, personnel marketing as well as extensive support to businesses in all matters arising from personnel consulting.
  • Analysis of principal tasks and professional and general requirements of a position
  • Advertisement and data base research
  • Structured interviews
  • Research and direct approach
  • Selection assessment centers
  • Presentation of applicants and decision processes
  • Implementation of employee appraisal interview techniques
  • Development centers
  • Design of applicant’s communication
  • Design of advertisements

In the course of a seminar on advertising and sales at Vienna University of Economics, Martina Petzl was able to delve into issues dealing with personnel marketing, corporate culture, corporate identity and design as well as with media and public relations.

Martina Petzl has been a member of ISG since 2002. Due to her personal background in the city of Graz, her main geographical focus is southern Austria therefore offering services to the Styrian business community (computer and IT technologies, pharmaceutical enterprises as well as marketing firms and media).

Motto: A problem is half solved if it is clearly stated.”


Mag. (FH) Renate Stefanowski

Senior Consultant


Renate Stefanowski, a senior consultant with a focus on technical positions started working for ISG Personalmanagement GmbH in spring 2006.

Before joining ISG she worked as a Quality Manager for an international company distributing medical devices and was responsible for continuously improving both customer satisfaction and efficiency of internal processes.

Renate Stefanowski studied business consultancy and specialised in personnel management & marketing.

With years of vast experience within the pharmaceutical, chemical and diagnostics industry in regulatory affairs, export, marketing, market research and quality management she is familiar with the requirements for qualified personnel and internal processes.

Thus her professional background enables her to carry out search and selection projects in a most efficient and beneficial way.

Motto: Coming together is a beginning; keeping together is progress; working together is success.” Henry Ford


Mag. Guido Leissinger

Chief Executive Officer & Founder


After completing his studies at Vienna University of Economics and Business Administration, Guido Leissinger began his professional career in management consultancy. His successful activities included organisational consultancy in many different companies dealing in a variety of commercial fields. Due to his very distinct interest in people, he switched from management to personnel consultancy.


  • Search & selection of specialist workforce and executives
  • HR development
  • Start-up and expansion of companies in Central and Eastern Europe
  • Design and implementation of promotion and selection assessment centers
Thanks to his wide knowledge and his strong sales orientation, he was made departmental manager after a short time. From 1993 to 1999, he successfully led CATRO as general manager being in charge of 60 employees in Austria and the Eastern European subsidiaries.

Guido Leissinger founded ISG in 1999 and has since built up the company from zero to more than 500 people in 23 countries.


  • Personnel consulting
  • HR development
  • Trainings

His leadership style is characterised by the notion that the human being should always be the central focus of all considerations. ISG’s long-term success can only be achieved through teamwork, mutual respect and understanding as well as constant on-the-job training.

Motto: „Success is not a coincidence“


Horst Neumayer

Teamleitung Sales & Vertrieb Dach

Rustenschacherallee 38
A-1020 Wien


Während seiner Ausbildung an der IHK in München setzte Horst Neumayer Schwerpunkte im Bereich Marketing und Sales. Seine erworbenen fachlichen Kompetenzen konnte er bei verschiedenen Unternehmen im deutschsprachigen Raum einbringen und erfolgreich umsetzen.
Seit 2008 unterstützt Horst Neumayer das Sales-Team der ISG im Headquater Wien.

Aufgrund seiner jahrelangen Erfahrung und erworbenen fachlichen Expertise wurde ihm 2019 von der Geschäftsführung die operative Verantwortung für den Auf- und Ausbau sowie die Leitung des Sales-Teams DACH übertragen. In der Zusammenarbeit mit seinem Team setzt er auf offene Kommunikation, ein respektvolles Miteinander und stete Weiterentwicklung. Humor ist in seinen Augen ebenfalls ein gern gesehener Begleiter.

Motto: “Es ist nicht genug zu wissen – man muss auch anwenden. Es ist nicht genug zu wollen – man muss auch tun.” – Johann Wolfang von Goethe


Dr. Richard Rudolf

Executive Managing Partner & Head of Industry Sector Group

Feldgasse 35
AT-3400 Kierling


After receiving a MSc degree in Atmospheric Science and a PhD degree in Experimental Physics from the University of Vienna, Mr. Rudolf joined the Austrian based Stölzle Group, one of the major European manufacturers of primary glass packaging for the pharmaceutical industry.

During the first years at the Stölzle Group Mr. Rudolf managed the business unit Medical, a profit center and commerce business serving universities, hospitals and drug stores with laboratory equipment and specific small scale packaging solutions.

After intermediate career steps as Sales Director Austria & Switzerland and Director of Business Unit Pharma & Medical he finally took over full P&L responsibility as CSO of Business Unit Healthcare & Consumer, covering global sales of Pharma and Consumer packaging containers and solutions to international pharmaceutical accounts in EMEA, CIS, North-America, South-America and APAC.

Having been member of the Executive Director Steering Team of Stölzle Group and member of the board of Stölzle Russia during a substantial period, Mr. Rudolf joined in 2014 Nipro Europe, an essential part of Nipro Corporation based in Japan. In his function as Business Unit Director he steered and organized sales of pharmaceutical primary packaging containers and prefilled syringes made from tubular glass within EMEA.

Combining his passion for the healthcare industry with his long-lasting and thorough senior managerial experience, Mr. Rudolf decided in 2016 to join ISG Healthworld as Global Managing Partner.


  • Executive Search & Selection
  • New Client & Candidate Acquisition on Global Level
  • Recruitment of Professionals, Senior- & C-Level Managers
  • Robust Network within the Pharmaceutical Industry & Market
  • Professional, efficient & effective Cooperation with Clients and Candidates
  • Entrepreneurial Spirit | Passionate & Committed | Well-Organized
  • Wide Angel Business View | Analytic Best-In-Class Approach

Alexander Schaffer

Managing Partner

Rustenschacherallee 38
A-1020 Wien


Mr. Alexander Schaffer has completed his apprenticeship and acquired a certificate of competence as a forwarding agent and a concession for cargo transportation with motor vehicles

In his 40-year career he was, among other things, responsible for the establishment, development, restructuring and reorganization of departments and offices in Austria and abroad. He also expanded forwarding services in Eastern Europe and, for many years, acted as Director and Head of the Eastern Region in well-known forwarding companies.

His activities focused on personnel management, recruiting, training and development and on the advancement of apprentice training (which was awarded a state prize).

In 2018 he took the opportunity to start his own business as a management and personnel consultant, in 2019 he joined the ISG.

Moto: “At the end of the day, it’s THE RESULT that counts.”


Thomas Windhager, B.A.

Executive Managing Partner

Manhartstrasse 1
A-2000 Stockerau


For over 28 years, Thomas Windhager has been working in sales, covering positions from account manager to executive. Correspondingly, he is deeply familiar with the industry and has gained his insight working with national and international companies.

For him, people always are at the center of any corporate activity: from building a new sales team to the strategic positioning a new product. This approach was also central to him when, as a head of sales, he was putting together a sales team for an international manufacturer of office machines.

As founder and managing director of an IT company that acted as general agency for Dictaphone in Austria, he was responsible for sales and marketing agendas.

After his career in the IT industry, he studied Aging Services Management, dealing with demographic change in our society, at Ferdinand Porsche University of Applied Sciences.

His key competences in consulting lie in IT and in recruiting for sales and management positions.

His credo is: “We can only achieve our goals together, taking into account the needs of all parties involved”.


Mag. (FH) Elmar Scheuba

Executive Managing Partner & Global Head of Sector Group "Healthworld"



Europe / EMEA, USA & CANADA, CENTRAL- AND SOUTHAMERICA (LATAM), Asia, Middle- & Far East / U.A.E.


Healthcare private equity and venture capital funds in the range of $50M to $500B AUM / Global Life Sciences, Biotech, Pharma, Medical Devices/Diagnostics, Innovation & Digital Health Transformation / Healthcare Private Equity and Venture Capital backed companies / Privately and public held firms (for-profit) in the range of $10M to $500B / Start-up, Spin Offs, small-, mid- and large-size enterprises, turn-around operations / Multinational Blue chip organizations.


C-Suite & Board Level Search / Board-Level and CEO appointments / Senior Vice President and VP roles / General Management appointments / Senior Directors & Directors / Middle Management Appointments / Engineers / Scientists / Specialists




Commercial Marketing & Sales | Business Development / Health Economics & Market Access | Pricing & Reimbursement / Regulatory Affairs | Quality Management & Safety / Hospital Administration & Management / Medical Assignments / Scientific Research (Biotechnological & Pharmaceutical) / Preclinical & Clinical Development / Medical Manufacturing | Production, Prototyping & OEM / Bioprocessing | Pharmaceutical Engineering & Packaging / Health Care IT Management | Medical- & Bio-Informatics


Mr. Scheuba shows an excellent and unique knowledge of international medical devices, pharmaceutical, biotech and health care markets in general. From his university background perspective, Elmar Scheuba is an international health economist and graduate of “health care management” master studies at International Management Center Krems (IMC) / Austria with the focus on international pharmaceutical management, international hospital management and international health care consulting.

Mr. Scheuba possesses over 20 years of professional work experience during which he has had the opportunity to gain substantial financial health care experience as a global buy side equity analyst for an exclusive health care investment-boutique in Switzerland, where he was responsible for worldwide medical services research (hospitals, distributors, HMO’s, health care IT). During his several professional assignments he could also gain valuable experience in the endovascular medical devices industry at Medtronic Corporation and received an extensive insight in Novartis pharmaceutical Drug Regulatory Affairs (DRA) business. Apart from that, he was later performing as an international product manager for a leading European supplier of consumer medical products and could further contribute to Deloitte’s Life Science consulting business in Zurich where his profound industry expertise and personal dedication made him a valuable asset as a global subject matter expert for topics associated with medical devices, life science, pharma and health care providers.

Prior to setting up his own global recruiting and executive search company Mr. Scheuba was able to successfully build up his strong personal competence in health care recruiting and executive search by performing as a European senior business manager for medical devices and pharma on board of two globally renowned major executive search companies, located in Germany and the UK respectively.

Elmar Scheuba represents a high caliber manager and visionary leader in the following sub-industrial and functional executive search segments:

Covered (Sub-)Industries:

  • Medical Devices, Surgical & Implantology
  • Pharma and Generics
  • Biotechnology, Cell Biology & Life Sciences
  • Medical Capital Equipment & Imaging Technology
  • Medical Diagnostics, Laboratory & Testing
  • Health Care IT, Digital Health & Medical Informatics
  • Dental Medicine & Orthodontology
  • Medical Rehabilitation and Robotics
  • Hospitals and Senior Residences
  • Consumer Healthcare
  • Animal Health and Veterinery Medicine
  • Clinical Nutrition, Clinical Food & Dietary Products
  • Health Insurance & Health Care Finance
  • Chemicals, Fine Chemicals & Specialty Chemicals
  • Cosmetics, Perfumes & FMCG
  • Medical Automation, General Engineering & OEM
  • Micro & Nanotechnology, Material Sciences
  • Sports Medicine & Fitness
  • Health Care Consulting Industry
  • Health Insurance & Health Care Finance
  • Medical Communications & Advertising Industry
  • Health Tourism, Spa & Medical Travel
  • Alternative Medicine, Beauty & Well-Being
  • International Aid & Non-Profit Organizations
  • Medical Professionals

Covered Functions:

  • Commercial Marketing & Sales | Business Development
  • Regulatory, Quality & Safety
  • Market Research & Business Intelligence | Medical Education
  • Scientific Advisory & Medical Education
  • Health Economics & Market Access | Pricing & Reimbursement
  • Scientific Research (Biotech & Pharma)
  • Clinical Discovery & Development
  • Medical Manufacturing, Production & Prototyping
  • Bioprocessing | Pharmaceutical Engineering & Packaging
  • Environmental Health and Safety | Occupational Medicine
  • Hospital Administration & -Management
  • Health Care IT Management & Informatics
  • Medical Controlling & DRG Management
  • Health Consulting & Health Advisory
  • Medical Communications, PR & Advertising
  • Purchasing & Strategic Sourcing
  • Controlling & Finance
  • Logistics & Supply Chain Management
  • Human Resources & Legal
  • Medical Assignments

Representative Search Projects


Dr. Thomas Wladika

Managing Partner

Rustenschacherallee 38
A-1020 Vienna


After completing his doctoral studies in Business Administration (specialization: Banking Management and Trade, SMEs) at the Vienna University of Economics and Business, Dr. Thomas Wladika started his professional career in 1989 with Girozentrale und Bank der österreichischen Sparkassen AG, later GiroCredit (trainee program, subsequently corporate banking).

In 1992, he transitioned to Catro Personalberatung, where he led the financial services division.

After working in corporate customer service for Deutsche Bank in Vienna and Raiffeisenlandesbank Niederöstereich-Wien, as of 2000, he managed a corporate customer profit center for the Bank Austria Group. In 2005, he became deputy head of the Lower Austria (South) and Burgenland region. From 2006, he served as head of corporate customer business in Lower Austria. After serving as a global account manager in the multinational corporate department, he committed himself to strategic tasks and was responsible for a number of global processes and projects in the corporate & investment banking division of Bank Austria until the end of 2017. Afterwards, he joined an acquisition project of Oberbank AG in Vienna.

In addition, Dr. Wladika participated in numerous management, sales, technical and personality development seminars and training courses in Switzerland (Prof. Malik) and Belgium (Management Center Europe). 

Since 10/2018 he is ISG Managing Partner. 

Main focus:

  • Personnel Consulting
  • Search and selection of executives and specialists (advertisements, database and active approach), nationally and internationally
  • Headhunting
  • Sales trainings with focus on acquisition

Motto: “Nothing is more convincing than success”


Mag. Michaela Wessely

Senior Consultant / Prokuristin & Head of Business Consultancy Sector Group


After graduation from the Vienna University of Economics, specializing in human resource management and English, Michaela Wessely started her professional career as consultant with CATRO Personalberatung GmbH.

As a result of her distinct commitment, excellent know-how in several industries and her professional performance the power of attorney was assigned to her.

Covering the same position, she joined the newly founded ISG Personalmanagement GmbH in 1999, where she carried on successfully attending to Austrian and international clients of various industries (production, trade, services, IT and telecommunication). For years, clients and candidates have been appreciating her custom-made, result oriented approach and her confidentiality.


  • Search and selection of candidates
  • Selection of executives and specialists via advertisement, database and direct search nationally and internationally
  • Design and implementation of recruiting and promotion assessment centers
  • Coaching
  • Know-how transfer in an EU-wide project for consultants, HR Managers and CEO in the Ukraine
  • Internal training
Motto: „Continuance is based on change.“

Mag. (FH) Silke Selinger

Managing Partner Consulting & Coaching


Mag. (FH) Silke Selinger berät seit dem Jahr 2007, in Ihrer Funktion als Senior Consultant, renommierte Unternehmen aus den Bereichen Life Science & Health Care.

Ihre exzellente Branchenkenntnis gepaart mit ihrem Zu- und Umgang mit BewerberInnen und ebenso auf Kundenseite machen sie zu einer wertvollen Mitarbeiterin der ISG. Sie überzeugt Kunden sowie Kandidaten mit individuellem Service, Engagement, persönlicher Wertschätzung und absoluter Diskretion. Kunden schätzen besonders ihre hervorragende Branchenkompetenz, ihr hohes Maß an Pflichtbewusstsein und Projektverantwortung, persönlichen Einsatz und ihre Fähigkeit Aufgabenstellungen und Situationen rasch zu erfassen und die richtigen Lösungsansätze zu konzipieren.

Sie ist Absolventin mit ausgezeichnetem Erfolg des berufsbegleitenden Master Studiums „Health Management“ am International Management Center Krems (IMC) und spezialisierte sich auf die Bereiche Pharmamanagement, Krankenhausmanagement und Int. Health Consulting. Zudem ist sie ISO-zertifiziert als systemischer Personal- & Businesscoach und Psycho-Soziale Beraterin i.A.u.S.

Ihr Motto:
„Energy flows, where the attention goes.“ (Milton Erickson)


Oliver Messner, MSc

Managing Partner


Oliver Messner started his professional career as a project technician for global assignments in an international manufacturing group. Due to his affinity for sales, he was very quickly entrusted with setting up an after sales organization. Through his successful work, he moved to an Austrian plant and mechanical engineering group, where he was responsible for sales in 27 countries. At least, Oliver Messner directed the developments of an international mechanical engineering group as technical managing director and company officer with statutory authority. In this role, he was specifically responsible for the digital transformation (mobile solutions, augmented & virtual reality, digitization of organizations, hybrid products, etc.) for the entire company.

In his MSc studies in applied business management, he focused on strategic corporate and organizational development, leadership and personnel management, as well as on innovation management in connection with digitization measures.

With his many years of experience in international project management, sales & after sales as well as in human resources and corporate management, he now supports companies as Managing Partner of ISG Personalmanagement GmbH and owner of S3 Consulting Messner, so that they develop holistically and sustainably.


  • Executive search from industry experts + top executives
  • Personnel management (search & selection)
  • Development + moderation of selection assessment centers
  • Conducting competence + potential analysis (diagnostics)
  • Out- & new placement advice
  • Interim management
  • Innovation management
  • Digital transformation
  • Strategic business and start-up advice
  • Lean management, service engineering & supply chain management
  • Training for sales & after sales – also especially for (service) technicians
  • Accompanying start-up’s | SMEs | int. Enterprises
  • Expertise in the following areas:

Business Consultancy | Manufacturing Industry | Technology | Sales | Pharmaceutical Industry + Healthworld | Medical Technology | Automotive | FMCG | Scientific Institutions


  • enthusiasm to work with people
  • individual advice
  • straightforward communication at eye level
  • visionary thinking
  • entrepreneurial mindset
  • above-average enthusiasm
  • competence and professionalism in action
  • Hands-on mentality
  • excellent network on all sides and hierarchy levels

His motto: “Don’t just aspire to make a living, aspire to make a difference“


Dr. Peter Muckenhuber

Managing Partner


Dr. Peter Muckenhuber completed his degree in production and management at the Steyr University of Applied Sciences in 2002, followed by part-time studies in economics at the Johannes Kepler University and doctorate at the University of Natural Resources and Applied Life Sciences in Vienna.

With almost 20 years of professional experience the range of track record of Dr. Muckenhuber lasts from project experience to leadership experience as team and branch manager as well as interim manager. The professional experience covers manufacturing and industry, agriculture, energy supply, technical services / IT / robotics and mechanical engineering.

The individual needs of customers and their organizations are met through the broad experience of Dr. Muckenhuber identified efficiently and precisely and enables a holistic view of it. Thanks to the extensive service portfolio (personnel, IT special service, headhunting, training, outplacement, interim management), the right solution for customers, employees and potential new employees can be developed and implemented.


Credo: „The Only Thing That Is Constant Is Change“ (Heraklit)



  • Technology
  • Industry
  • Business Consultancy / Interim management
  • Public & Government (Energy)
  • Agriculture

Gerald M. Nitsche

Managing Partner


Gerald Nitsche has many years of experience in major account management in direct and indirect IT solution sales. He has an excellent network in the IT environment, primarily in the finance and insurance sector as well as in the public sector, and provides in-depth knowledge of the specific requirements for employees in these industries.

Gerald has more than 30 years of experience in the IT sector as a sales manager, senior account manager and key account manager in national and international companies.

Based on his experience in leadership, he can identify if the candidate matches with the new area of responsibility and the team.


Dipl.-Wirt. Ina Ott, BBA

Country Manager / Managing Partner


During her studies at Hamburg University of Economics and Business Administration, Ina Ott began her professional career in management consultancy at a very early age of 21. Her successful activities included Finance, Mergers & Akquisition Consultancy, Business Development and expanding the Salesmarket in the DACH region and Eastern Europe. Due to the great concern to bring management and employees more and more into harmony with each other, she switched from management to personnel consultancy.


  • Search & selection of specialist workforce and executives
  • HR development
  • Start-up and expansion of companies in Central and Eastern Europe

Thanks to her great relationship management and her strong sales orientation, she was made specialist for eastern europe after a short time. From 2015 to 2019, she successfully led a branch of Deutsche Bank in Hannover as bank manager being in charge of 4 Teams with sales projects over 1,1 Million € per month.

Ina Ott founded a new way of business consultancy at May 2020 and successfully applies this knowledge to personnel consulting at ISG.


  • Personnel consulting
  • HR development
  • Relationship Management
  • Communication Coach between Management and Employee
  • Team Building

For the future, companies may completely transform their processes and basic attitudes. To reveal essential processes, to realign the strategy in the area of dealing with each other. In doing so, the consideration of the number of operating sites, branches, subsidiaries is of great importance. The higher the number, the more complex and blurred the handling of the company becomes and appears to the outside world.


Franz Wukovits

Managing Partner


Franz Wukovits verfügt über 34 Jahre fundierte Berufserfahrung in der Industrie und im Gewerbe. In verantwortungsvollen Positionen als Qualitätsleiter, Produktionsleiter, Betriebsleiter bis hin zur Geschäftsführung konnte er die verschiedenen Sichtweisen der Positionen in namhaften nationalen als auch internationalen Unternehmungen der produzierenden Industrie kennenlernen. 24 Jahre seiner beruflichen Laufbahn hat er in der Automobilzulieferindustrie (TIER 1 bis TIER 3) verbracht und kennt daher die speziellen Anforderungen bestens.

Aufgrund der technischen Ausbildung sowie zahlreichen fachlichen wie auch betriebswirtschaftlichen Weiterbildungen verfügt er ein in die Tiefe gehendes Fachwissen. Diese Erfahrungen und Kenntnisse bringt er bei der Auswahl von Fach- und Führungskräften ein.

Motto: “Es gibt immer einen Weg um das Ziel zu erreichen.”


Barbara Rammer

Managing Partner


Barbara Rammer – active in personnel consulting for over 30 years.

After completing a Commercial Academy, Barbara began her career working in sales and controlling for a food industry company in Vienna for five years. She then moved in the field of personnel consulting and recruitment in 1990. Since then, Barbara has been working in the personnel consulting and recruitment business for well-known companies in Upper Austria. Over the last 16 years she was a division manager for commercial and technical positions.

With ISG since January 1st, 2021 as Managing Partner.

Barbara Rammer has extensive professional experience in the classic field of search & selection of Specialists and Executives in various industries. This includes Executive recruitment and guarantees professional handling and support throughout the consulting and recruitment process.

Barbara has completed numerous training courses in the areas of leadership, communication, sales and training as a systemic solution-oriented coach throughout her professional career.

In addition to systemic search and selection as well as analytical selection, Barbara Rammer is a successful personal consultant and recruitment professional today as she provides above all empathy, communications skills, hands-on mentality, absolute reliability and confidentiality which customers and candidates hold in high regard and value.


  • Professional Search & Selection
  • Executive Search
  • Coaching
  • Outplacement


  • Industry & Consumer Goods
  • Retail & Wholesale
  • Financial Services
  • Transportation & Logistics
  • Consulting Services

Klaus Pilz-Wallner, BA MA

Managing Partner


In addition to studying business administration and business psychology as well as various training courses, Mr. Pilz-Wallner was also able to develop a technical background due to a variety of industries:


  • Plant construction
  • Mechanical engineering
  • Construction and related trades
  • Building material
  • Raw material and mining
  • Trade
  • Series and one-off production
  • Consultation
  • Education
  • Real estate


  • Study of business administration and business psychology
  • Certified accountant
  • Various courses and courses with a focus on national and international purchase and work contracts, claim management, construction and plant construction contracts
  • Various norms and international standards
  • Mining and Mineral Resources Act and Regulations


Development, management and operational activities in several areas – nationally and internationally:

  • Project business and project management
  • One-off and series production
  • Personal, organization and processes
  • Business development
  • Establishment and management of foreign branches
  • Development and implementation of strategies
  • Marketing, sales and offer calculations
  • Purchasing and logistics
  • Plant and production management
  • Laboratory, Quality Assurance and R&D
  • Quality, safety, environmental and energy management according to various norms and standards
  • Restructuring and change management
  • Finance, accounting and controlling
  • IT, support, implementation and trainings
  • Risk management

Wolfgang Frühbauer, MBA

Managing Partner


Aufgewachsen in einer Unternehmerfamilie versuchte sich Wolfgang Frühbauer vorerst als Musiker, begleitend zu einem Studium am Konservatorium in Wien. Es verschlug Ihn aber sehr rasch in die Geschäftswelt. Er gründete mit Anfang 20 einen Getränkehandel mit Spezialisierung auf Wein und absolvierte sein Wirtschaftsstudium. Nach einer raschen Expansion verkaufte er 2005 diesen und wechselte ins Management von Morandell International, danach zu Bonnevit und zuletzt als Geschäftsführer von Wein & CO.

Seit 2019 ist er als Berater tätig und begleitet große internationale Projekte im Weinfachhandel.  2021 wechselte er zur ISG um seine Erfahrungen rund um das Thema Personalentwicklung und Recruiting einzubringen.

Motto: „Suche und finde Deinen Weg … wähle Deinen Beruf, den Du liebst und Du brauchst keinen Tag mehr zu arbeiten“


Mag. Verena Mollner

Managing Partner


After graduating in Business Education with a specialization in Transport and Logistics Verena Mollner started her career in the purchasing for CEE in fashion retail.

Due to her interest in working with people and their personnel development she continued her career in different HR-roles – always with a focus on recruiting. With her experience in various industries (e.g. manufacturing industry, media, logistics, retail) Verena Mollner supports companies from different branches and sectors with tailor-made recruitment solutions.


Focus areas of work:

  • personnel search and selection for experts and executives
  • development of assessment center
  • competence and potential analysis
  • out- and newplacement consulting

Motto: “Knowing is not enough – we have to apply. Willing is not enough – we have to do.” ~Johann Wolfang von Goethe


Martin Schmidtbauer, BA MA

Managing Partner


Martin Schmidtbauer has experience in human resources and IT consulting, including more than 10 years as a SAP consultant. In his role as a SAP consultant, he supported positions in both external and internal consulting. He was also entrusted with project management tasks and led, among other things, international projects in the corporate environment. In addition to his professional activity, he completed a bachelor’s degree in business consulting and a master’s degree in HR management with a focus on labor law.

Due to the economic education and the technical activities, he has in-depth knowledge in economic matters as well as in the IT environment and puts his industry focus on the area of technology.

Slogan: „Be realistic, demand the impossible“ – Ernesto Guevara


Mag.a Natascha Richter

Managing Partner


Natascha Richter ist Managing Partnerin der ISG Personalmanagement GmbH in Österreich.

Nach einer pädagogischen Ausbildung beendete sie erfolgreich das Studium der Rechtswissenschaften an der Johannes Kepler Universität in Linz und arbeitete lange Jahre als Juristin in führenden Positionen. Dabei war sie u.a. für die Steuerung von Kommunikationsprozessen, Personalführung, Personalkontrolle und Personalorganisation verantwortlich. Da sie großes Interesse an Weiterentwicklung und hat, absolvierte Natascha Richter zahlreiche Ausbildungen u.a. in den Bereichen Mediation, Projektmanagement, Zivilschutz, Mentaltraining und vor allem in der Persönlichkeitsentwicklung. Als Unternehmensberaterin und durch ihre langjährige Erfahrung in verantwortungsvollen Positionen betreut sie ihre KundInnen engagiert, empathisch und zuverlässig. Dabei ist Diplomatie und die Arbeit mit und für Menschen eine Leidenschaft von ihr. Ihre Kommunikationsstärke und ihr niveauvoller Humor runden ihr Profil ab.

Den Erfolg wertet sie dadurch, dass ihre KundInnen sich freuen mit ihr zusammenarbeiten und sich bei Bedarf gerne wieder mit der ISG GmbH in Verbindung setzen.

Zu Ihren Tätigkeits- und Beratungsschwerpunkten zählen

  • Suche und Auswahl von Fach- und Führungskräften
  • Kundenbezogene Projektabwicklung und -koordination im Bereich Executive Search
  • Erfassung der Stellenbeschreibung und Definition der Anforderungen
  • Online-Jobinserate auf den nationalen Jobbörsen
  • Interim Management und Qualitätszeitarbeit
  • Personalberatung und Abwicklung des Recruitingprozesses
  • Bewerbercoaching
  • Medien- und Briefkastenservice
  • Personalentwicklung und Training
  • Neukundengewinnung
  • Kundenbetreuung

„Müde macht uns die Arbeit, die wir liegenlassen, nicht die, die wir tun.“ (Marie von Ebner-Eschenbach)


Chunxia Kuang


+86 138 2937 0556
WeChat ID: 13829370556


Chunxia Kuang has extensive experience in telecommunications in the Chinese market, where she was responsible for sales, marketing, and the expansion/rollout of broadband services.  In addition, she gained valuable experience working for a provider of mobile solutions and the marketing of services. Mrs. Kuang has an extensive knowledge of the Chinese market, speaks Chinese and German and will be part of the team working on the expansion to China.


Yuwei Bao


Wechat ID: Fupo_Yw


Yuwei Bao has been studying languages for several years and has focused herself on the German language, collecting extensive experience in the areas of business assistance, translation, interpreting and international business correspondence. In addition, she has been working as a German teacher. Besides Chinese and German, she is fluent in English and will be part of the team working on the expansion to China.