Portfolio since 1995
Portfolio.
Four areas — operational, founded, investments, advisor. Active and concluded engagements ordered chronologically. Click an entry for context and contribution.
Active today.
elevion green
Advisory Board MemberCyberDesk
Investor and AdvisorESMT Vali
MentorApplysia
Advisory Board MemberSedisto
Founding Investorw3.fund
Founding LPParetos
Angel InvestorFounders Foundation
Advisor and Mentor – Founders Foundation and Hinterland of ThingsAxel Springer Plug and Play
MentorGuest Teaching
Guest Lecturerexigo capital
Founder & Managing Director
By layer
Portfolio archive.
Operational
Executive employments and associate-partner roles with operational responsibility.
Operational
Elia Group
Group CDO & CIO, Member of the Group Management Board, Elia Group · CDIO, 50Hertz Transmission GmbH · additionally Chief AI Officer from 2025
Six years on the Group Management Board of two systemically critical transmission system operators.
Operational
Sensorberg
COO (07/2016 – 03/2017), CEO (03/2017 – 10/2019), Board Member and Advisor (11/2019 – 12/2024)
Business-model shift from retail marketing provider to industrial IoT platform for real estate.
Operational
Vattenfall
Head of Network
An initially six-month interim mandate that turned into more than four years.
Operational
Softgarden
CEO (Interim Manager)
First interim management mandate through the newly founded exigo capital vehicle.
Operational
Vodafone 360
Head of Global User Experience
A dedicated Vodafone ecosystem of social, cloud, and apps with a dedicated Samsung hardware line.
Operational
iconmobile
group COO and Managing Director
Operational leadership of one of Europe's leading digital innovation agencies in the early smartphone era.
Operational
Vodafone Group
Head of Global User Experience
Build-up of the global Vodafone UX and product organisation during the birth phase of the mobile internet.
Operational
Vodafone live!
Head of Global User Experience
Global UX leadership of the first worldwide mobile content portal – from the original launch to the camera phone.
Operational
Vodafone live! Vision
Head of Global User Experience
Conceptual vision and future-state work on Vodafone's product strategy.
Operational
Accenture
Manager, Communications & High-Tech Practice
Five-year consulting station in the Communications & High-Tech Practice.
Operational
GSM Gesellschaft für Software Management
Head of Branch
First management station: opening the Berlin office from scratch.
Operational
Fraunhofer IAO
Consultant
Entry into professional life at the Fraunhofer Institute for Industrial Engineering, in parallel with university studies.
Founded
Founded ventures.
Founded
exigo capital
Founder & Managing Director
An operating platform since 2011 – own projects, investments, board mandates, and senior-advisor work.
Founded
Bookletmobile
Founder and CEO
A mobile micro-publishing platform with location and QR triggers, concluded with an exit.
Founded
GES Verlag
Founder & CTO
Digital-only publishing vehicle within the exigo portfolio, three-year term.
Founded
paymy
Founder & CTO (paymy GmbH)
Mobile payment built on SEPA direct debit instead of card schemes.
Investment
Investments with capital participation.
Investment
CyberDesk
Investor and Advisor
Identity-centric data security for enterprises.
Investment
Sedisto
Founding Investor
Founding Investor in a 2022-founded digitalisation platform for self-storage.
Investment
w3.fund
Founding LP
Founding LP of a next-generation investment house for Web3.
Investment
Paretos
Angel Investor
Agentic decision intelligence for supply chain and operations.
Advisor
Expertise and time commitment without capital participation.
Advisor
elevion green
Advisory Board Member
B2B platform for the decarbonisation of commercial real estate – photovoltaics, battery storage, heat pumps, charging infrastructure, and technical building services from a single source.
Advisor
ESMT Vali
Mentor
Mentor at the Entrepreneurship Hub of ESMT Berlin.
Advisor
Applysia
Advisory Board Member
Advisory Board Member in the field of digitalised personnel selection.
Advisor
Founders Foundation
Advisor and Mentor – Founders Foundation and Hinterland of Things
Advisor and mentor at one of the established German founder platforms.
Advisor
Axel Springer Plug and Play
Mentor
Mentor since 2016 – selective involvement in the Berlin accelerator environment.
Advisor
Guest Teaching
Guest Lecturer
Occasional lectures and guest formats at two Berlin universities.