Ruben Diaz
Angel investor in Boadilla del Monte
Boadilla del Monte, Community of Madrid
Ruben Diaz, Angel investor in Boadilla del Monte is an active investor based in Boadilla del Monte, Community of Madrid. This profile covers what Ruben Diaz backs, at which stage, and how founders can reach out in 2026.
Ruben Diaz is a senior executive with over 20 years of experience in banking and finance, specializing in strategy, finance, risks, and transformation, and serves as a venture advisor and seed investo
Ruben Diaz invests in Fintech, typically at Seed and Early Stage Venture.
- Investor type
- AngelVC
- Stages
- SeedEarly Stage Venture
- Invests in
- Fintech
- Location
- Boadilla del Monte, Community of Madrid
- Typical check
- $375K
How to reach Ruben Diaz
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About this profile
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Cite this page
Round Funded. "Ruben Diaz." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/ruben-diaz
Frequently Asked Questions
Who is Ruben Diaz?
Ruben Diaz, Angel investor in Boadilla del Monte is an active investor based in Boadilla del Monte, Community of Madrid. Ruben Diaz invests in Fintech, typically at Seed and Early Stage Venture.
What does Ruben Diaz invest in?
Ruben Diaz invests in Fintech, typically at Seed and Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Ruben Diaz invest at?
Ruben Diaz typically invests at Seed and Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is Ruben Diaz's typical check size?
Ruben Diaz typically writes checks around $375K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.