# Top 5 Big Data Angel Investors in Estonia in June 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 the Centre for Study of Existential Risk and Future of Life Institute.

## Markku Jääskelainen
- Type: Angel
- Location: Miami, Florida, United States
- Relevant deals: 2
- Stages: Seed, Series A
- Focus: Drones, Big Data, Software

Markku Jääskelainen.

## 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

## 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.

## Nick Handel
- Type: Angel
- Location: San Francisco, California, United States
- Relevant deals: 1
- Stages: Seed
- Focus: SaaS, Big Data, Data Integration

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