# Top 5 Big Data Angel Investors in Estonia in May 2026

## Jaan Tallinn
- Type: Angel
- Location: Tallinn, Harjumaa, Estonia
- Relevant deals: 4
- Stages: Seed, Series A
- Focus: Software, Artificial Intelligence, Internet

Jaan Tallinn is the Co-founder of Future of Life Institute.

## Timo Rein
- Type: Angel
- Location: New York, New York, United States
- Relevant deals: 1
- Stages: Seed, Angel, Convertible Note
- Focus: Software, Recruiting, Human Resources

Timo Rein - Co-Founder @ Pipedrive

## Markku Jääskelainen
- Type: Angel
- Relevant deals: 1
- Stages: Series A
- Focus: Drones, Big Data, Software

Markku Jääskelainen.

## Geoffrey Prentice
- Type: Angel
- Location: Hong Kong, Hong Kong Island, Hong Kong
- Relevant deals: 1
- Stages: Seed, Series A, Series C
- Focus: Apps, Messaging, Language Learning

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.

## Martin Tajur
- Type: Angel
- Location: Tallinn, Harjumaa, Estonia
- Relevant deals: 1
- Stages: Pre-Seed, Seed, Angel
- Focus: Software, SaaS, Recruiting

Martin Tajur is the co-founder of Pipedrive.

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