We support people, teams, and organizations – worldwide.

Our Clients

We collaborate with leading companies across a range of industries. Our client portfolio includes organizations such as Evonik, Carl Zeiss AG, BASF, BMW Group, Generali Insurance, Austrian Airlines, and Adidas. These long-standing partnerships reflect our commitment to quality and tailor-made

Wien

BMW Financial Services

Generali Versicherung

KPMG

Raiffeisen Bank International

Austrian Airlines

Mayr-Melnhof

A1 Telekom Austria

Magistrat der Stadt Wien

Mars

Österreich

Tann Papier

Trierenberg Holding Papier

VOEST Alpine

Sony DADC
KIKA / Leiner

Prag

Unipetrol

Generali Versicherung

Budapest

Generali Versicherung

Bukarest

Generali Versicherung

Sofia

Generali Versicherung

Athen

BMW Group

Istanbul

Carl Zeiss AG

Kairo

International Contractors

Ljubljana

Generali Versicherung

Belgrad

Generali Versicherung

München

BMW Financial Services

BMW Group

Carl Zeiss AG

Landshut, Dingolfing

BMW Group

Herzogenaurach

Adidas

Ingolstadt

Media Saturn Gruppe

Essen

EVEONIK

Braunschweig, Jena

Carl Zeiss AG

Frankfurt

Kemira

Kassel

Wintershall

Ludwigshafen am Rhein

BASF SE

Helsinki

Kemira

Enfield

Sony DADC

Piscataway, New Jersey

EVONIK

San Antonio, Texas

Tesoro Refineries

Dublin, Kalifornien

Carl Zeiss AG

Spartanburg, South Carolina

BMW Group

McLean, Virginia

Mars

São Paulo

Kemira

Beijing

BMW Financial Services

BMW Group

Shenyang

BMW Group

Shanghai

Carl Zeiss AG

Tokyo

Carl Zeiss AG

Bangkok

BMW Group

Kuala Lumpur

Carl Zeiss AG

Singapur

Carl Zeiss AG

Selected Clients and Partners

Chemicals, Healthcare & Pharmaceuticals 

BASF SE (D) 
EVONIK (D, USA, APAC)
Kemira (A, D)

Energy

Wintershall (D)
Tesoro Refineries (USA)
Unipetrol (Cz)

Finance & Insurance

BMW Financial Services (D, China)
Generali Versicherung (EMEA)
KPMG (A)
Raiffeisen Bank International (A, CEE)

Industrial Goods / Automotive / Transport

Austrian Airlines (A) 
BASF (D) 
BMW Group (D, USA, China, Thailand, GB) 
Carl Zeiss AG (D, APAC, USA) 
Mayr-Melnhof (A)
Tann Papier (A) 
Trierenberg Holding Papier (A) 
VOEST Alpine (A)
 

Hightech & IT

Sony DADC (A, GB) 
A1 Telekom Austria (A)

Public Sector

Magistrat der Stadt Wien

Retail & Consumer Goods

Adidas (D)
KIKA / Leiner (A)
Mars (A)
Media Saturn Gruppe (Gr)
Schwan Stabilo (D)

What our clients say:

“For over 15 years, GECOS has been an essential part of our development programs”

“For over 15 years, two of our core development programs – designed for both new and experienced professionals – have been shaped in close collaboration with GECOS. The longevity of our partnership speaks for itself: quality, reliability, adaptability, and a strong focus on the participants needs. GECOS trainers are consistently described by participants as inspiring, up to date, professional, and genuinely personable.”

Dr. Thomas Kummer
Head of Leadership & People Development Academy
Evonik Industries – May 2025

Foto: Stadt Wien

“A lasting positive impact on our daily collaboration”

“As the Urban Planning Director of the City of Vienna, we regularly face complex technical challenges and shifting social dynamics. Hosam Ghadamsi supported us with insight and creativity in reflecting on our roles and responsibilities – and helped us realign our strategic focus with clarity and purpose. The targeted development of our leadership team was another important milestone – and has had a lasting, positive effect on how we work together every day. Our sincere thanks to Hosam Ghadamsi and the entire GECOS team!”

Dipl.-Ing. Bernhard Jarolim
Director of Urban Planning

Contact Us:

For further information or bookings, please contact:

Hosam Ghadamsi
Managing Partner

Tel.: +43 676/900 00 67 

GECOS GmbH
Konrad Fetty-Gasse 3/1,
2100 Korneuburg
view on Google Maps