# Top 5 Financial Services Angel Investors in Portugal in May 2026

## Alex Atallah
- Type: Angel
- Location: Menlo Park, California, United States
- Relevant deals: 1
- Stages: Seed
- Focus: Gaming, Blockchain, Video Games

Alex Atallah is a Co-Founder of OpenSea. Attended Stanford University.

## Arthur Hayes
- Type: Angel
- Relevant deals: 1
- Stages: Seed, Series A
- Focus: Cryptocurrency, Blockchain, Information Technology

After graduating with a degree in economics from the Wharton School of Business, Arthur lived in Hong Kong as an equity derivatives trader. He was the market-maker for Deutsche Bank and Citibank’s Exchange Traded Funds (ETF) businesses. He also has extensive experience trading equity index futures, forwards, and swaps as well as non-deliverable FXforwards. Arthur brings a deep understanding of how to structure and trade financial derivatives.

## Crypto Dog
- Type: Angel
- Relevant deals: 1
- Stages: Seed
- Focus: Cryptocurrency, Blockchain, Financial Exchanges

Crypto Dog

## Tue Lumbye
- Type: Angel
- Relevant deals: 1
- Stages: Seed, Angel, Pre-Seed
- Focus: Sports, FinTech, Software

Tue Lumbye is the Head of Danish Market at Better Collective. He attended Syddansk Universitet - University of Southern Denmark.

## Balaji Srinivasan
- Type: Angel
- Location: San Francisco Bay Area, California, United States
- Relevant deals: 1
- Stages: Seed, Series A, Pre-Seed
- Focus: Blockchain, Cryptocurrency, Software

Balaji S. Srinivasan is the Co-Founder and Board Member of Coin Center. He was the CTO of Coinbase and cofounder of Counsyl, Earn, Teleport, and Coin Center. He was previously CEO at Earn.com, which was recently sold to Coinbase. Prior to taking the CEO role at Earn.com, Dr. Srinivasan was a General Partner at Andreessen Horowitz. Prior to joininga16z, he was the cofounder and CTO of Founders Fund-backed Counsyl, where he won the Wall Street Journal Innovation Award for Medicine and was named to the MIT TR35. Dr. Srinivasan holds a BS, MS, and PhD in Electrical Engineering and an MS in Chemical Engineering from Stanford University. He also teaches the occasional class at Stanford, including an online MOOC in 2013 which reached 250,000+ students worldwide.

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