Timan Rebel

Hands-on fractional CTO

📍 Amsterdam, North Holland, Netherlands🔄 Updated October 2026💼 5 investments📅 11 years investing🗓 Last invested Feb 2026𝕏 @upgrade_to_unlock
VC🌍 NetherlandsInvested this year
5
Total investments
3
Early stage
0
Mid stage
0
Late stage
11y
Years active

Portfolio

4 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Seed Investor
Feb 2026
Lead Investor
2017
At times, there are simply not enough hours in the day. This is the app that helps you in everyday life. Whether it’s to keep track of your to-dos, to find the best restaurants or to see all your calendars in one place. Roy is an artificial intelligence that helps to plan your daily life more efficiently, from todo's to booking a restaurant, from calendars to events he has you covered. Download Butleroy now to be your most productive self https://itunes.apple.com/us/app/butleroy-calendar-to-do/id1211182003?ls=1&mt=8
Investor
2017
The European Super Angels Club (ESAC) is a pan-European co-investment and networking club for super angels, high-net-worth individuals, family offices, venture capital firms and corporates. Members combine their individual financial strength and know-how to invest in high-growth European startups raising rounds of €1-15m. Why join? • High-level pan-European network Belong to a network of like-minded co-investors • Roadshows Get exclusive invites to investor-startup matching events held in major European tech hubs • Knowledge and analysis from KPMG and Venionaire Exclusive access to KPMG and Venionaire Capital expertise • Increased deal flow Gain access to the best European startups • Scale across Europe, take on America and Asia Fund the next round of European tech giants ESAC was founded by KPMG Austria and Venionaire Capital. Supporting founding partners are PHH Rechtsanwälte, Semper Constantia Privatbank and Microsoft.
Founder and Investor
Aug 2015
GroundControl is innovation management software to set up and manage your innovation ecosystems. The software is built to help innovation managers as well as the startup teams. The platform uses a structured approach to innovation. Teams can map their assumptions, determine what is most risky, design experiments and run sprints. GroundControl act as a virtual coach to keep teams focussed. The innovation managers can measure the performance of the innovation program with innovation accounting. Analyze the progress of teams and learn where your innovation process can be improved. Report with confidence to the board with clear and visual data. GroundControl is the all-in-one platform to innovation managers and startup teams. Ready to create or improve your innovation ecosystem? Try it 30 days for free or request a demo.
Experience · 15 entries
All (15)
Investments (4)
Founder (10)
2026
Seed Investor
Feb 2026
2022
2021
Co-Founder
Oct 2021
DefiPlaza is a decentralized exchange on Ethereum. Like other exchanges, DefiPlaza offers trades between tokens by functioning as an Automated Market Maker (AMM). What makes DefiPlaza special are single-contract, highly optimized DEXs, designed to offer the lowest possible trade cost to the end user. Gas costs per trade are the lowest in the industry, and thanks to the multi-token set up very capital efficient, while Impermanent Loss is minimized. We currently have two multi-token pools, focussed on blue chip tokens and stable tokens. For each trade we automatically select the pool that would result in the lowest trade fee.
2020
GroundControl
CTO and Co-founder
Jul 2020
Technical Due Diligence Advisor
Jan 2020
Healthy Capital is a Dutch leading digital health venture capital fund with one mission: keeping healthcare affordable and accessible for everyone. That is why we invest in early-stage companies that fundamentally reshape how healthcare is organised and delivered. In 2025 alone, our portfolio prevented €88.3 million in unnecessary healthcare and societal costs and made care processes more efficient across the system, freeing up as much capacity as 1,015 extra full-time healthcare workers to focus on delivering better care to more patients. Learn more at healthy.capital
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Investment activity
2015–2026 · 5 investments
20151201612017220261
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