Stephen Zastrow, Principal at Semya Capital Management is an active investor based in Phoenix, Arizona. This profile covers what Stephen Zastrow backs, at which stage, and how founders can reach out in 2026.
Stephen Zastrow is a Principal at Semya Capital Management with over 25 years of executive and consulting experience.
Stephen Zastrow invests in SaaS & Enterprise and Artificial Intelligence, typically at Seed, Series A and Early Stage Venture.
- Investor type
- VC
- Stages
- SeedSeries AEarly Stage Venture
- Invests in
- SaaS & EnterpriseArtificial Intelligence
- Location
- Phoenix, Arizona
- Typical check
- $500K
How to reach Stephen Zastrow
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About this profile
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Round Funded. "Stephen Zastrow." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/stephen-zastrow
Frequently Asked Questions
Who is Stephen Zastrow?
Stephen Zastrow, Principal at Semya Capital Management is an active investor based in Phoenix, Arizona. Stephen Zastrow invests in SaaS & Enterprise and Artificial Intelligence, typically at Seed, Series A and Early Stage Venture.
What does Stephen Zastrow invest in?
Stephen Zastrow invests in SaaS & Enterprise and Artificial Intelligence, typically at Seed, Series A and Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Stephen Zastrow invest at?
Stephen Zastrow typically invests at Seed, Series A and Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is Stephen Zastrow's typical check size?
Stephen Zastrow typically writes checks around $500K. 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.