Top 10 Big Data Angel Investors in Estonia (September 2026)

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

Investment focus

Industry: Software, Artificial Intelligence, Information Technology
Stage:Seed, Series A, Pre-Seed
Geography: United States, Estonia, United Kingdom

Investor stats

Total investments: 66
Round size: Seed $531k–$15M; Pre-Seed $799k–$2.1M; Series A $3.3M–$124M
Lead/follow: 5% lead, 95% follow

Portfolio highlights

ZaiNar — ZaiNar leverages patented digital signal processing techniques to locate radio devices in 3D with meter-level accuracy.
Lightyear — Lightyear is a simple and approachable way to invest your money globally without unnecessary barriers and fees.
Blueprint Bryan Johnson — On the surface, Blueprint may seem something about health, wellness and aging. It's really a system to make tomorrow better for you, me, the planet and our shared future with AI.

Show all investments...

Markku Jääskelainen.

Investment focus

Industry: Drones, Big Data, Software
Stage:Seed, Series A
Geography: Estonia

Investor stats

Total investments: 2
Lead/follow: 0% lead, 100% follow

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!

Show all investments...

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

Investment focus

Industry: SaaS, Big Data, Data Integration
Stage:Seed
Geography: Estonia

Investor stats

Total investments: 1
Lead/follow: 0% lead, 100% follow

Portfolio highlights

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

Show all investments...

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

Industry: Software, Information Technology, Marketplace
Stage:Seed, Pre-Seed, Angel
Geography: Estonia, Ukraine, United States

Investor stats

Total investments: 35
Round size: Seed $677k–$5.9M; Pre-Seed $206k–$2M
Lead/follow: 11% lead, 89% follow

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.

Show all investments...

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.

Investment focus

Industry: Apps, News, Mobile
Stage:Seed, Series A, Series C
Geography: United States, India, Estonia

Investor stats

Total investments: 4
Lead/follow: 50% lead, 50% follow

Portfolio highlights

Pepo — Buy the domain name Pepo.com and launch your business with a premium domain and a high quality logo.
Betable — Betable is a casino-first, technology-led iGaming platform. Launch and scale casino, sportsbook, player accounts, payments, CRM and compliance on one stack.
Lingvist — Lingvist is an innovative language learning platform that uses artificial intelligence, natural language processing, and machine learning algorithms to make the learning process faster and more efficient.Lingvist is a subscription service for language learning, accessible via three platforms (web, iOS, and Android) worldwide.Lingvist waslaunched in 2013 and is operated from Tallinn, Estonia.

Show all investments...

I help developer tech entrepreneurs beginning from crazy idea, through MVP stage, product market fit, go-to-market fit, up to go-to-market scaling. Also I help you get your first 1000 leads. Before, I was the CMO at Contentful and helped it grow from $0m to $50m in ARR, and before that founded 3 companies, including Wooga (exit to Playtika),Linklift, and Mundwerk.I obsess about being customer-centric and customer-driven in building your organization. And I am the curmodgeon who tells you things you need to (but probably don't want to) hear.

Investment focus

Industry: Software, Information Technology, SaaS
Stage:Seed, Pre-Seed, Series A
Geography: Germany, United States, France

Investor stats

Total investments: 37
Round size: Seed $1.2M–$7M; Pre-Seed $500k–$2.5M; Series A $15M–$25M
Lead/follow: 0% lead, 100% follow

Portfolio highlights

DGG — RapidCompact by DGG is the leading solution to make 3D content fit all target platforms, freeing up each creative team's' time by automating the creation of high-quality, optimized 3D assets for Web, mobile, AR and XR use. Customers include retailers, public institutions, tech companies, XR studios, and more.
PartyKit — PartyKit is an open source deployment platform for AI agents.
Restate — Restate is a lightweight runtime that lets developers build innately resilient distributed apps without the complexity tax.

Show all investments...

Martin Tajur is the co-founder of Pipedrive.

Investment focus

Industry: Software, Artificial Intelligence, SaaS
Stage:Pre-Seed, Seed, Angel
Geography: Estonia, Poland, Ukraine

Investor stats

Total investments: 17
Round size: Seed $800k–$2.7M; Angel $136k–$566k; Pre-Seed $401k–$2M
Lead/follow: 0% lead, 100% follow

Portfolio highlights

YuMuuv — YuMuuv is an employee wellness platform that uses science-based formulas to capture data and keeps track of physical activity & leaderboard.
Shen.AI — Discover how Shen AI turns your smartphone into a health companion - no wearables, just powerful, camera-based health insights.
SegmentStream — At SegmentStream we partner with growth leaders to drive more revenue from paid media through full-funnel attribution, incrementality measurement and automated cross-channel budget allocation powered by predictive AI.

Show all investments...

Timo Rein is based out of New York, New York, and is the Co-Founder of Pipedrive. Timo Rein attended the University of Tartu.

Investment focus

Industry: Software, Recruiting, Human Resources
Stage:Seed, Angel, Convertible Note
Geography: Estonia, Finland, United Kingdom

Investor stats

Total investments: 10
Round size: Seed $300k–$2M; Angel $136k–$359k
Lead/follow: 30% lead, 70% follow

Portfolio highlights

YuMuuv — YuMuuv is an employee wellness platform that uses science-based formulas to capture data and keeps track of physical activity & leaderboard.
Antegenes — Antegenes’ novel genetic tests assess a patient’s personal cancer risks, and include clinical recommendations for personalized cancer prevention. The tests are based on innovative polygenic risk score technology which helps to clarify a person’s genetic predispositions to cancer. It therefore allows for more accurate prevention and early detectionmeasures – crucial in the fight with cancer. The tests are currently being used to determine the genetic risk for four cancers: breast cancer, prostate cancer, colon cancer, and skin melanoma.
Bidrento — One powerful platform for your entire portfolio. The leading property and tenant management software. Scale your operations and maximize your profit with Bidrento. Try it already today!

Show all investments...

Özgür Gen

Investment focus

Industry: SaaS, Big Data, Software
Stage:Pre-Seed

Investor stats

Total investments: 1
Lead/follow: 0% lead, 100% follow

Portfolio highlights

Sweephy — Sweephy | No-code Data Cleaning as a Service

Show all investments...