… your competent partner in all personnel matters!

Our consultants support you throughout Switzerland in almost every province. Our staff has well-founded, extensive, and diverse know-how in virtually all industries and occupations, as well as many years of experience. As a full-service provider in all personnel matters, we offer services in the areas of executive search, personnel consulting, personnel development, potential analysis, outplacement and temporary work.


Meet the team behind Switzerland

Nicole Taumberger (Schneider)

Country Manager / Senior Consultant


Nicole Taumberger has broad experience in the areas of recruitment, executive search and personnel development.

With her proven track record in developing search and recruitment strategies as well as with her profound business knowledge she is the ideal partner for your success. Nicole Taumberger brings in-depth experience in recruitment of specialists and executive search.

As a country manager at ISG Switzerland, Nicole is successfully responsible for the expansion and future development of ISG Switzerland in the area of ​​personnel consulting since 2010.

With her many years of professional experience as a consultant, paired with her market-oriented, cultural and professional knowledge in all manner of personnel consultancy you will find a competent and professional partner with Nicole Taumberger.

Areas of Expertise:

  • Search & selection of specialists and executives
  • Executive Search
  • Specialist in computer science
  • Human resources development

Motto: “We can’t change the direction of the wind, but we can help you to adjust the sails!”


Csaba Toth

Managing Partner


Csaba Toth has gained extensive experience as Credit-Manager in international receivables management and in the area of trade. His knowledge of foreign languages, strength in communication and his negotiation skills were of great help when conducting negotiations with managing directors and lawyers. Later he worked as managing director in his own company in the field of online strategies and in his consulting agency. His areas of expertise were complex advisory tasks, support at authorities and in court.

He takes great pleasure in working with people, consulting and communicating.

Consultancy focus areas:

  • Search and selection of specialists and leaders/executive search
  • Focus on the area of IT and the health sector
  • Human resource development
  • Communication & self-management
  • Online marketing

Motto: “Look for the good in every person and every situation. You’ll almost always find it.”
Brian Tracy


Daniel Odermatt

Managing Partner


After completing my professional training in the hospitality sector, I spent some “years of apprenticeship and peregrinations” in the gastronomy and hotel industry before I transitioned to personnel placement some 20 years ago.

Complementing my first-hand experience, I dedicated some time to further training in subject-specific matters and personal development (Personnel Specialist, Adult Educator, Higher Diploma in Business).

In recruiting, I focus on the sectors Industry / Technology / Construction.

A very important aspect of my approach can be summarized as follows: “Listen well and take your vis-à-vis seriously”.

In this spirit, I’m looking forward to hearing from you!


Gabriel Kassowicz, M.A.

Healthcare/Medtech/Pharma/Biotech - Executive Search

ISG Personalmanagement Switzerland


Educational Background and Professional Experience

  • University degree in Translation – Interpretation
  • Sound experience in strategic consulting and in global corporate environments (>20 Years)
  • Multilingual (German, English, French, Dutch)

Client Focus

  • Global Life Sciences, Biotech, Pharma, Medical Devices/Diagnostics & Digital Health Transformation.
  • Start-ups, Spin Off’s, small-, mid- and large-size enterprises, turn-around operations.
  • Healthcare private equity and venture capital backed companies.
  • Privately and public held firms (for-profit) in the range of $ 10M to $ 5B.
  • Healthcare private equity and venture capital funds in the range of $ 50M to $ 5B.
  • Multinational Blue chip organizations.

Country Focus

  • Switzerland
  • Europe, EMEA


Business Focus

  • C-Suite & Board level search  Senior Directors and Directors
  • Board-Level and CEO appointments Specialists
  • Senior Vice President and VP roles Engineers
  • General Management appointments Scientists
  • Middle Management appointments

Industry Focus

  • Health Care
  • Medical Devices & Dental
  • Pharma & Generics
  • Hospitals & Senior Residences
  • Medical Diagnostics & Laboratory
  • Biotechnology & Life Sciences
  • Consumer Healthcare
  • Healthcare IT & Bio-Informatics
  • Clinical Nutrition, Food & Cosmetics
  • Health Insurance & Health Care Finance
  • Health Care Consulting Industry
  • Chemicals

Functional Coverage

  • Commercial Marketing & Sales | Business Development
  • HR
  • Supply Chain | Logistics | Procurement
  • Finance | Accounting
  • ICT
  • Health Economics & Market Access | Pricing & Reimbursement
  • Regulatory Affairs | Quality Management & Safety
  • Scientific Research (Biotechnological & Pharmaceutical)
  • Preclinical & Clinical Development
  • Medical Manufacturing | Production, Prototyping & OEM
  • Bioprocessing | Pharmaceutical Engineering & Packaging
  • Health Care IT Management | Medical- & Bio-Informatics

Eleonora Hintersehr

Managing Partner


Eleonora Hintersehr was born in Hungary. After her professional training she worked in a pharmacy for 25 years.

This job required, apart from specialist knowledge, excellent communication skills, the ability to solve problems and to cooperate, flexibility, conflict management and social sensitivity. The experience she gained then she can also use in her current job.
After getting married in 2014 she moved to Switzerland and studied Webdesign and Online Marketing.
In her own company, the Hintersehr Consultig Agentur, she supports Hungarian and Swiss clients in the areas of founding a company, consulting and the creation of an online presence.
2018 she became ISG Managing Partner.
Using her marketing knowledge and her contacts in Hungary she primarily supports the work of her husband Csaba Toth.

Consultancy focus areas:

  • Search and selection of specialists and leaders/executive search
  • Focus on the area of IT and the health sector
  • Online marketing

“Impossible is just a big word thrown around by small men who find it easier to live in the world they’ve been given than to explore the power they have to change it.
Impossible – is not a fact. It’s an opinion.
Impossible – is not a declaration. It’s a dare.
Impossible – is potential.
Impossible – is temporary.
Impossible – is nothing.”

Muhammad Ali


Viktor Ledermann

Managing Partner


Viktor Lederman looks back on many years of professional experience as a personnel manager in industry, trade and IT. Combining his initial technical education with advanced business management training, Mr. Ledermann has to offer in-depth specialist knowledge and experience for the search and recruitment of specialists and executives.

Listening and clarifying a wide range of requirements is a skill that takes learning. For Mr. Ledermann it’s the foundation of his work, like finding and assembling the individual pieces of a puzzle to form the finished picture. 

Main areas of consulting:

  • Industry and commerce
  • Skilled crafts and trade
  • Information technology and administration
  • Trade and sales
  • Personnel development

Motto: “What we do today is the outline of tomorrow’s painting.”  (Monika Minder) 


Lukas Bühler

Managing Partner


I gained my first professional experience in retail and subsequently completed a degree in Business Administration and a trainee program in commerce. After two years of working in the retail sector, I decided to get into staffing in 2016. I have mainly been placing commercial specialists. Thanks to my experience and a talent for matching people, I am the right person to turn to for your staffing needs.

Main areas of consulting:

  • Search & selection of specialists and executives
  • Specialists in the forwarding industry
  • Specialists in the telecommunications industry
  • Professionals in banking and finance


“Rather than banging your head
against a brick wall
You should use your eyes
to find the door.”


Rachel Buchbinder

Managing Partner

ISG Personalmanagement Schweiz


Rachel Buchbinder gained her first experiences in various business/commercial functions and areas before changing into the job placement sector after a stay abroad.

Since 2004, including a two-year maternity leave, Rachel Buchbinder has been placing mainly business specialist in various companies with great success. Thanks to her empathy and tact she is able to connect compatible parties.

Due to her extensive experience she has a wide range of specialist knowledge at her disposal.

Languages: German, English, French (Italian and Spanish)

Focus areas:

  • Search & selection of junior employees, specialists and leaders
  • Executive Search
  • Specialist in the business/commercial sector
  • Coaching of candidates

Motto: The journey of a thousand miles starts with the first step.


Michèle Oeschger

Managing Partner


Michèle Oeschger works since 1998 in the IT recruitment field. Since 2000 she is specialised in recruitment of IT professionals and IT leadership.

Through many years of activities, focused on the IT sector, Michèle Oeschger possesses a wide network – both as well from a custom as from a candidate side – and has a very good overview and an excellent know-how portfolio in the IT world.

Providing personal and individual support and the relationship of trust with candidates and clients are the principle and basis for a successful and target-aimed cooperation.

Clients find their IT know-how specialist through the excellent network of M. Oeschger, and she supports IT specialists in their career development to the next step.

The ISG – International Service Group Schweiz GmbH – focuses on the personal selection and recruitment of IT professionals and IT leadership. Our clients are from industrial, service and financial sectors. They are active in national and international business. Our service includes the search for IT candidates, who have obtained the mandated professional level at home, as well as in foreign countries.

A flat corporate structure, a homogeneous operation, discretion and reliability, flexibility and customer focus of our employees, as well as an excellent price / performance ratio represents the company mission with the headquarter in the east of Switzerland.


Antonio Iacovazzo

Managing Partner


Antonio Iacovazzo ist seit 2007 als selbständiger Unternehmer im Bereich Business Development und human Resources unterwegs. Dies, nach einer langjährigen Tätigkeit im Management von internationalen Fluggesellschaften.

Er verfügt über fundierte Fachkenntnisse in Marketing, Kommunikation, Sales, Aviatik, Tourismus und Human Resources.

Weiterbildungen im psychologischen Bereich sowie die Ausbildung zum Coach SOC und die Weiterbildung zum wingwave® -Coach und Eidg. Betrieblicher Mentor FA erweitern seine Kompetenzen. Antonio Iacovazzo ist Mitglied der Swiss Coaching Association (SCA) und der Schweizer Kader Organisation (SKO).

Im Mittelpunkt stehen der Mensch und seine Ressourcen.


  • Suche und Auswahl von Fach- und Führungskräften
  • Executive Search
  • Fachspezialist Aviatik, Tourismus, Kommunikation, Marketing, Sales
  • Coaching im Bereich Standortbestimmung, Bewerbungscoaching, begleitete Stellensuche sowie Outplacement

Motto: “Du kannst den Wind nicht ändern, aber du kannst die Segel anders setzen“ (Aristoteles)


David Gökcedag

Managing Partner

ISG Personalmanagement GmbH


David Gökcedag joined ISG Personalmanagement GmbH as Recruitment and Talent Search Partner to support our valuable clients in the Software Sector by evaluating Specialists and Managers especially in Software Development, Software Design and Architecture, and Product & Project Management positions throughout the EU leveraging our over 650 ISG employees.

He is a member of our IT Sector Group focusing on Telecommunications, Information Technology and Software Development.  David is an Industrial & Management Engineer having completed his technical education with honors from the Rensselaer Polytechnic Institute in Troy, New York.

Fluent in English, Turkish, German and Spanish David was a Business Developer and Project Manager for the last 20 years, providing a wide range of consultancy services to companies developing their international business in Turkey and other emerging markets.  He has experience both with global corporations (General Electric) and start-up companies having established a successful software company in Istanbul which he is still currently advising as board member.  He gained valuable market know how for very well-known SME’s as well as international corporations from the USA, UK, Spain, Turkey, China and Germany.

You will find in David an experienced professional with a vast range of expertise for:

  • Recruitment & Selection of IT Specialists and Leaders
  • Design and Implementation of Digitalization & Change Processes
  • Training & Development

Motto:  “Be the Change you want to see in the World” (Mahatma Gandhi)



We strive for our continuous development and the ongoing improvement of our services to exceed your expectations!