Ralph Birke, Angel investor in Spain is an active investor based in Spain. This profile covers what Ralph Birke backs, at which stage, and how founders can reach out in 2026.
Ralph Birke is an angel investor and business owner, serving as COO & Founder of AIR8 Tech International.
Ralph Birke invests in SaaS & Enterprise, typically at Seed and Series A.
- Investor type
- Angel
- Stages
- SeedSeries A
- Invests in
- SaaS & Enterprise
- Location
- Spain
- Typical check
- $625K
How to reach Ralph Birke
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About this profile
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Cite this page
Round Funded. "Ralph Birke." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/ralph-birke
Frequently Asked Questions
Who is Ralph Birke?
Ralph Birke, Angel investor in Spain is an active investor based in Spain. Ralph Birke invests in SaaS & Enterprise, typically at Seed and Series A.
What does Ralph Birke invest in?
Ralph Birke invests in SaaS & Enterprise, typically at Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Ralph Birke invest at?
Ralph Birke typically invests at Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Ralph Birke's typical check size?
Ralph Birke typically writes checks around $625K. 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.