Top 5 Big Data Angel Investors in Estonia in July 2025

Last updated: Jul 2025 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 July 2025

Investor	Big Data Estonia investments
Jaan Tallinn	4
Markku Jääskelainen	2
Nick Handel	1
Timo Rein	1
Geoffrey Prentice	1

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Jaan Tallinn is the Co-Founder of the Centre for Study of Existential Risk and Future of Life Institute.

Investment focus

Software, Artificial Intelligence, Internet
Seed, Series A, Funding Round
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.
Anthropic — An AI safety and research company that's working to build reliable, interpretable, and steerable 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.

Markku Jääskelainen.

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!

Nick Handel is Head of Data Science at Branch International. Past: Product Manager for machine learning at Airbnb.

Investment focus

SaaS, Big Data, Data Integration
Seed
Estonia

Portfolio highlights

Alvin — Highly accurate, automated column-level lineage, powering your data workflows.

Timo Rein - Co-Founder @ Pipedrive

Investment focus

Software, Recruiting, Human Resources
Seed, Angel, Convertible Note
Estonia, Finland, United Kingdom

Portfolio highlights

Antegenes — What is your cancer risk? Let Antegenes have a look at your genetics. Use existing DNA data or have Antegens take a new sample.
Bidrento — With Bidrento you can easily manage PRS, Built-to-rent, Student Housing, Co-Living, Mini-Storages, Commercial real estate in one single software. Save your time and grow your business with Bidrento. Try it already today!
Teamscope — Understand what drives your team's performance, make exceptional hiring decisions, and unlock the full potential of your team.

As cofounder of Oriente, Geoffrey Prentice is responsible for global business strategy, strategic partnerships, brand, and investments. He has nearly 20 years of experience founding, scaling and investing in technology companies across international markets.Before this, Geoffrey spent seven years as a founding Partner at Atomico, a leadingglobal VC firm with over US$2 billion in assets under management where he focused on sourcing new investments and working with portfolio companies on their global business development and expansion initiatives.In 2002, Geoffrey co-founded Skype, where he also served as Chief Strategy Officer. At Skype, he worked with a small team to build a leading global telecommunications platform company and oversaw its expansion into Asia and Latin America in addition to driving its initial business plan development and fundraising activities. He also played an instrumental role in the $3.1 billion exit to eBay Inc in 2005.Geoffrey holds a Bachelor's degree from the University of Michigan.