Top 5 Big Data Angel Investors in Estonia in April 2025

Last updated: Apr 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 April 2025

Investor	Big Data Estonia investments
Jaan Tallinn	4
Markku Jääskelainen	2
Nick Handel	1
Ragnar Sass	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

Aerones — Robotic wind turbine service company offering maintenance, inspection and repairs worldwide. Reduce downtime and improve the efficiency of your wind park
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.

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.

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.

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.