Top 5 Big Data Angel Investors in Estonia in January 2026
A list of 5 angel investors that invest in Big data startups based in Estonia. We rank investors based on the number of investments they made in Big data companies from Estonia. We update this investor list every month.
Top 5 Big Data Angel Investors in Estonia in January 2026
| Investor | Big Data Estonia investments |
|---|---|
| Jaan Tallinn | 4 |
| Markku Jääskelainen | 2 |
| Martin Tajur | 1 |
| Ragnar Sass | 1 |
| Nick Handel | 1 |
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Jaan Tallinn
Jaan Tallinn is the Co-Founder of the Centre for Study of Existential Risk and Future of Life Institute.
Show more...Investment focus
- Software, Artificial Intelligence, Internet
- Seed, Funding Round, Series A
- United States, Estonia, United Kingdom
Portfolio highlights
- LawZero — LawZero is committed to advancing research and creating technical solutions that enable safe-by-design AI systems.
- TENYX — Discover innovative solutions for digital transformation at Tenyx. Explore our cutting-edge technology services designed to drive business growth and elevate your digital presence.
- Lightyear — Lightyear is a simple and approachable way to invest your money globally without unnecessary barriers and fees.
Markku Jääskelainen
Markku Jääskelainen.
Show more...Investment focus
- Drones, Big Data, Software
- Seed, Series A
- Estonia
Portfolio highlights
- Hepta Insights — Hepta provides automated power grid management and analysis using autonomous drones and powerful analytics software. Visit our website to find out more!
Martin Tajur
Martin Tajur is the co-founder of Pipedrive.
Show more...Investment focus
- Software, SaaS, Recruiting
- Pre-Seed, Seed, Angel
- Estonia, Poland, Ukraine
Portfolio highlights
- MX Labs — Allow your user to comprehensively monitor their vital signs. Check wellbeing, prevent misdiagnosis, and motivate lifestyle changes thanks to Shen.AI.
- Teamscope — Understand what drives your team's performance, make exceptional hiring decisions, and unlock the full potential of your team.
- SegmentStream — SegmentStream is a data intelligence platform which helps collect and unify from different data sources into own data warehouse for advanced analytics and attribution. Our solution is trusted by leading brands such as Benetton, Nespresso, New Balance, myToys, Eventim Group, and others.
Ragnar Sass
Ragnar Sass is the Co-Founder of Darkstar Camp. He previously worked at LIFT99 as a Founder and CEO. Ragnar Sass attended Estonian Business School.
Show more...Investment focus
- Information Technology, Software, SaaS
- Seed, Pre-Seed, Funding Round
- Estonia, United States, Ukraine
Portfolio highlights
- Alvin — Highly accurate, automated column-level lineage, powering your data workflows.
- BeTRITON — 100% electric recreational vehicle - revolution in sustainable travel. BeTRITON (formerly known as Z-Triton) offers extraordinary experience and freedom to travel both over land and water.
- Around — The largest network of workspaces on flexible terms. We are a savvy team from Latin America providing fast-growing companies with on-demand access to flexible office space. Everywhere.We believe work at its best is always creative and collaborative, expressed with freedom, autonomy, and purpose; and the space surrounding us should help us achieveit, anywhere & everywhere.We are shaping the future of work today by improving workspaces and the rules around them, and helping innovative teams find their ideal space to make their best work every day — our first step on a journey to change the way we work and think about work.Our best work. Anywhere. Everywhere. We are Around.
Nick Handel
Nick Handel is Head of Data Science at Branch International. Past: Product Manager for machine learning at Airbnb.
Show more...Investment focus
- SaaS, Big Data, Data Integration
- Seed
- Estonia
Portfolio highlights
- Alvin — Highly accurate, automated column-level lineage, powering your data workflows.
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