8
Total investments
2
Early stage
1
Mid stage
2
Late stage
27y
Years active
Portfolio
6 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor
Jun 2026
Robinson Exotech Corp. is a manufacturer of a revolutionary medical mobility assistance device - The XLEG, our flagship product is available in Canada and the United States although in use around the world. The XLEG is a wearable hands-free crutch alternative that provides full range of motion and mobility during recovery.
BERLIN GREEN - GreenBox GmbH - Investor - Business Angel
Nov 2025
BerlinGreen exists to reconnect people with nature in their everyday lives.
Our mission is to make growing plants at home simple, beautiful, and sustainable - even in urban spaces with limited light and room.
By combining smart indoor-growing technology with thoughtful design, European materials, and local craftsmanship, we enable year-round plant growth while supporting wellbeing, self-sufficiency, and a more mindful way of living.
We believe homes should be alive and we’re building the tools to make that possible.
Advisory Board Member, Investor
Oct 2023
SensitHaptics is the global leader for advanced haptics technologies for sim racing, sim gaming and entertainment. With its own haptics chipsets and AI powered hardware algorithms, its products like the MTC-P EXTREME yield unrivalled haptics precision and clarity for ultra in game immersiveness as required by eSports pros.
Co-Founder, Business Angel
Jun 2021
HIIVE has re-invented the traditional beehive. Finally beekeepers are able to offer a natural, species adequate home to the most important animal on the planet. HIIVE is the first bee home, which completely replicates the specifications of a wild bee home (tree cave ). With its stable microclimate HIIVE keeps the bees healthy and happy.
Shareholder
Sep 2020
Berlin Angel Fund is a brand of BACB Beteiligungsgesellschaft mbH, the venture capital partner of Business Angels Club Berlin-Brandenburg e.V. (BACB).
We combine the structure and financial possibilities of a venture capital fund with direct access to the support, network and know-how of far more than 100 active Business Angels from across Germany.
Following the metaphore of the 2 wings of a Business Angel, we always invest our own money and offer ongoing personal guidance. This includes:
- active support from first money in to scaling of the business
- personally involved Business Angels with skin in the game
- direct access to hands on experience and know-how in (almost) all business sectors
- some of the most experienced Business Angels and industry experts - ticket sizes up to 200.000€ as lead- and co-investor over multiple financing-rounds
- vast network in the Berlin and German start-up ecosystem.
Our shareholders are members of BACB e.V. with whom we are closely cooperating to generate our dealflow.
Our personal experience as (serial-)founders, entrepreneurs and/or senior managers enables us to interact with founder teams on eye-level and to guide less experienced Business Angels towards more successful start-up investments.
Co-CEO / Shareholder
May 1999
Worldwide procurement and distribution of electronic components.
Not every component is available through standard distributors at all times.
Solely relying on franchised distributors poses a higher risk to experience supply shortfalls. You can reduce this risk by completing your supplier portfolio with a reliable independent distributor in due time.
Whether it is an acute procurement problem or a long-term cost-saving program: 4Source reliably complements your traditional procurement channels.
> worldwide special procurement
> covering your annual / project requirements
> storekeeping on your behalf
> delivering on call
> availability protection – last-time-buy
> obsolescence monitoring of your critical components
The complete stock turnover is inspected and documented based on IDEA standards, using digital microscopy and X-ray (amongst others) to identify counterfeit components.
Comprehensive certification guarantees best possible efficiency and transparency.
Give us a try – and request currently needed components.
4Source welcomes your auditors!
Please make an appointment and conduct your own audit to convince yourself of our high standards of services and procedures.
Experience · 9 entries
All (9)
Investments (7)
Founder (2)
2026
Investor
Jul 2026
Pacster makes gifting simple – for companies, clients, partners, or privately for friends and family. Whether B2B or B2C, our presents are shipped directly and arrive on time – tomorrow or on your chosen date. With Pacster, you save time, delight your loved ones or business partners, and create unforgettable moments – for Christmas, birthdays, or any special occasion.
Investor
Jun 2026
Robinson Exotech Corp. is a manufacturer of a revolutionary medical mobility assistance device - The XLEG, our flagship product is available in Canada and the United States although in use around the world. The XLEG is a wearable hands-free crutch alternative that provides full range of motion and mobility during recovery.
2025
BERLIN GREEN - GreenBox GmbH - Investor - Business Angel
Nov 2025
BerlinGreen exists to reconnect people with nature in their everyday lives.
Our mission is to make growing plants at home simple, beautiful, and sustainable - even in urban spaces with limited light and room.
By combining smart indoor-growing technology with thoughtful design, European materials, and local craftsmanship, we enable year-round plant growth while supporting wellbeing, self-sufficiency, and a more mindful way of living.
We believe homes should be alive and we’re building the tools to make that possible.
2023
Advisory Board Member, Investor
Oct 2023
SensitHaptics is the global leader for advanced haptics technologies for sim racing, sim gaming and entertainment. With its own haptics chipsets and AI powered hardware algorithms, its products like the MTC-P EXTREME yield unrivalled haptics precision and clarity for ultra in game immersiveness as required by eSports pros.
2021
Co-Founder, Business Angel
Jun 2021
HIIVE has re-invented the traditional beehive. Finally beekeepers are able to offer a natural, species adequate home to the most important animal on the planet. HIIVE is the first bee home, which completely replicates the specifications of a wild bee home (tree cave ). With its stable microclimate HIIVE keeps the bees healthy and happy.
Show all 9 entries ↓
Investment activity
1999–2026 · 8 investments
Recent (last 2 years)Earlier
