MANDATES

FOUNDERS WE SUPPORT – PAST AND PRESENT

We work selectively with founders who build meaningful companies. Every mandate is a long-term partnership built on trust, clarity and high-quality boardwork.

FOUNDER AND FORMER FELLOW BOARD MEMBER VOICES

What founders say about working with Chairpeople.

CHRISTOPHER WALDNER | Founder and CEO

DR. CHRISTOPHER MCLACHLAN | Former fellow Advisory Board Member
and Head of Sales Innovation at RheinEnergie AG

ANDREAS BRUCKSCHLÖGL | Managing Director

DR. SEPITA ANSARI | CEO

MATTHIAS WETH | CAO

MARIO WITTE | CTO

NICO ZEIFANG | CEO

Active Mandates: Companies we currently accompany. Past Mandates:Companies we supported through critical stages to success.

Niels Dörje
Board Observer and Industry Board Director

Business model:
B2C Fantasy Football Manager App

Anatol Korel
CEO & Co-Founder

Johannes Feldges
CBO

2025

Niels Dörje
Start-up Board Member (NED)

Business model:
Förderung der Agrar- & Ernährungswirtschaft

Dr. Christian Bock
Managing Director Bereichsleiter Fördergeschäft

Niels Dörje
Senior Advisor

Business model:
M&A and Corporate Finance Advisory

Ralf Philipp Hofmann
Managing Partner & Co-Founder

Julian Ostertag
Managing Partner / Co-Founder

Niels Dörje
Industry Board Member

Business model:
KI Plattform

Dr. Tim Rietz
Founder

2024

Niels Dörje
Industry Board Member

Business model:
B2B SaaS MarTech

Johanna Hartung
Founder

Timon Hartung
Founder

Ronjon M. Sarcar
Industry Advisor

Business model:
Social Affiliate Marketing

Marcel Schöne
Founder

Jan Haarhoff
Founder

2023

Niels Dörje
Supervisory Board Member

Business model:
B2B SaaS Travel Tech

Martin Tauber
Founder

Dott. MSc. Hubert Rienzner
Founder

Niels Dörje
Industry Board Director

Business model:
Digital value exchange

Theofanis Alexandropoulos
Founder & CEO

2021

Niels Dörje
Advisor and Coach

Business model:
Digital innovation hub

Dr. Dexin Luo, Ph.D.
Head of AI Solutions & Technologies

Niels Dörje
Industry Board Member

Business model:
UI/UX Agency

Felix van de Sand
Managing Director & Co-Founder

Daniel Wagner
Managing Director UX & Co-Founder

2022 trade sale to Etribes Connect GmbH

Niels Dörje
Chair of investment committee

Business model:
International non-profit organisation

Vasilis Koulolias
Founder

Warren Hero
Chairman

2020

Niels Dörje
Growth Advisor and Coach for Realytix

Business model:
Digital innovation hub

Andreas Molck-Ude
CEO at NewRe

Florian Niklas
Head of Realytix

Niels Dörje
Strategic Growth Mentor to the Founders

Business model:
Hospitality B2C Business

Dr. Josef Vollmayr
CEO & Co-Founder

César de Sousa Freitas 
MD & CFO

Niels Dörje
Advisory Seat

Business model: Blockchain banking

Kristina Walcker-Mayer CEO

Jörg von Minckwitz Co-Founder

Ben Jones Chairman & Co-Founder

Jan Goslicki COO & Co-Founder

2018

Niels Dörje
Advisory Board Director

Business model:
IoT SaaS in industry

Til Landwehrmann
CEO & Co-Founder

Dr. Michael Kolb
CTO

2024 trade sale to Banyan Software Inc.

Ronjon M. Sarcar
CEO & Co-Founder

Business model:
Strategy Consulting

Silvia Sarcar
Co-Founder

Logo with the words 'CONILIUM' in large stylized letters and 'digital expertise' below in smaller font.

2024 trade sale to netzunit GmbH

Niels Dörje
Chairman of the Board

Business model:
Digital performance agency

Oliver Zenglein
CEO & Co-Founder

Nicole Rainer
COO

2017

Niels Dörje
Advisor and Coach

Business model:
SP digital launch pad

Marcus Graser
Head of Strategy & Marketing SP

Michael Jacobi
Manager SP Digitallaunchpad

Niels Dörje
Chairman

Business model:
Digital product agency

Dott. MSc. Hubert Rienzner
Managing Director & Co-Founder

Martin Tauber
Managing Director

Niels Dörje
Chairman of Innovation Board

Business model:
open innovation hub by Sky Deutschland

Julia Laukeman
Senior Vice President Product & Digital Innovation

Mareike Lassner
Senior Project Manager Open Innovation Hub

2016

Niels Dörje
Advisory Board Member

Business model:
Digital performance agency

Dr. Sepita Ansari Pir Seraei
CEO & Co-Founder

Matthias Weth CEO & Co-Founder

Frank Hohenleitner CCO

Axel Landschoof CTO & CFO

2017 trade sale to Syzygy AG
majority owned by WPP

Niels Dörje
Advisor and Coach

Business model:
Digital innovation hub

Philipp Karmires
Head of Linde Digitalisation

Dr. Mathias Mostertz
Senior Business Development Manager

Niels Dörje
Supervisory Board Member

Business model:
Domain platform tech business

Nico Zeifang
CEO & Co-Founder

Mario Witte
CTO & Co-Founder

Stefan Wiegard
CFO & Co-Founder

2014

2014 trade sale to Matomy Media Group

Niels Dörje
Board Director & Co-Founder

Business model:
B2B SaaS MarTech

Marcus Tandler
Managing Director &
Co-Founder

Andreas Bruckschlögl
Managing Director &
Co-Founder

2012

2024 trade sale to Semrush Holdings, Inc.

Niels Dörje
CEO & Co-Founder

Business model:
Travel tech marketplace

Dr. Ulrich Eckert
COO & Co-Founder

Michael Frischkorn
CTO & Co-Founder

Jürgen Böhm
Chairman & Co-Founder

2010

2014 trade sale to HRS Group Cologne

Niels Dörje
Advisory Board Member

Business model:
B2B SaaS in travel

Benjamin Jost
CEO & Co-Founder

Jakob Riegger
COO & & Co-Founder

Steffen Wenz
CTO

2009

2017 trade sale to Media Group Recruit

Ronjon M. Sarcar
CEO & CO-Founder

Business model:
Performance Agency

2004

2008 Trade Sale to
Dentsu Media

Ronjon M. Sarcar
CEO & CO-Founder

Business model:
Freelancer Market

Rolf Kuhlmann
Co-Founder

Tjalf Nienaber
Co-Founder

Kambiz Hashemian
Co-Founder

1998

2000 Management Buy-out

Ronjon M. Sarcar
CEO & CO-Founder

Business model:
Freelancer Market

Tjalf Nienaber
Co-Founder

1999 Trade Sale to
Scou24 GmbH

Ronjon M. Sarcar
CEO & CO-Founder

Business model:
Greencard Service

Rolf Kuhlmann
Co-Founder

Kambiz Hashemian
Co-Founder

1995

2003 Trade Sale to
The American Dream
US GreenCard Service GmbH

Ronjon M. Sarcar
CEO & CO-Founder

Business model:
Websolutions & online Marketing

Rolf Kuhlmann
Co-Founder

Kambiz Hashemian
Co-Founder