Ryan Castonia
Venture investor in Grand Rapids
Grand Rapids, Michigan
Ryan Castonia, Venture investor in Grand Rapids is an active investor based in Grand Rapids, Michigan. This profile covers what Ryan Castonia backs, at which stage, and how founders can reach out in 2026.
- Investor type
- VCInvestor
- Stages
- Seed
- Invests in
- Artificial IntelligenceSaaS & EnterpriseGovTech & Defense
- Location
- Grand Rapids, Michigan
- Typical check
- $250K
- Past investments
- 4
Notable investments
pulseDataSelector
Elisity
United States Air ForceHow to reach Ryan Castonia
Angels and operators like Ryan Castonia reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.
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About this profile
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Cite this page
Round Funded. "Ryan Castonia." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/ryan-castonia
Frequently Asked Questions
What does Ryan Castonia invest in?
Ryan Castonia invests in Artificial Intelligence, SaaS & Enterprise and GovTech & Defense, typically at Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does Ryan Castonia invest at?
Ryan Castonia typically invests at Seed. Lead with traction that fits the stage when you reach out.
What is Ryan Castonia's typical check size?
Ryan Castonia typically writes checks around $250K. 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.