Randy Castleman
Emerging tech investor at SRF Management
New York City, New York
Randy Castleman, Emerging tech investor at SRF Management is an active investor based in New York City, New York. This profile covers what Randy Castleman backs, at which stage, and how founders can reach out in 2026.
- Investor type
- Angel
- Stages
- Pre SeedSeed
- Invests in
- Hardware & Deep TechClimate & EnergyRobotics & AutomationMedia & ContentMarketing & AdTech
- Location
- New York City, New York
- Typical check
- $150K
- Past investments
- 17
Notable investments
Automated InsightsB-FLEXIONFauna SystemsFermentCarbon Drawdown CollectiveIP Group, Inc.WillgrowASCAPTRAFFIQBug LabsHow to reach Randy Castleman
Angels and operators like Randy Castleman 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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Round Funded. "Randy Castleman." Round Funded investor database, updated September 26, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/randy-castleman
Frequently Asked Questions
What does Randy Castleman invest in?
Randy Castleman invests in Hardware & Deep Tech, Climate & Energy, Robotics & Automation and Media & Content, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does Randy Castleman invest at?
Randy Castleman typically invests at Pre Seed and Seed. Lead with traction that fits the stage when you reach out.
What is Randy Castleman's typical check size?
Randy Castleman typically writes checks around $150K. 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.