Greg Castle
InvestorManaging Partner at Anorak Ventures
San Francisco, California
Writes $50K – $400K checks · typically $250K
About
Greg Castle, a former growth operator who led user acquisition at Glassdoor and Chartboost, is a domain-focused investor—an early Oculus seed backer specializing in spatial computing, AR/VR and human-computer interfaces.
Greg Castle @gpcastle12
Couldn’t agree more! https://t.co/A2XcUo7t0U
Jul 31, 2026 · ♥ 1 · ⇄ 1
Greg Castle @gpcastle12
Reindustrializationmaxxers™️ take note of the marketing clinic being put on by @zanehengsperger and the entire Nox Metals team. https://t.co/CSTjtGJV98
Jul 29, 2026 · ♥ 14 · ⇄ 6
Greg Castle @gpcastle12
This is the man behind Flock. Not a nameless, faceless corporation. Not a man sitting in a dark office behind a mahogany desk. Just a guy with 3 kids on a mission to make this country a safer place. https://t.co/JRNOfk4AGA
Jul 21, 2026 · ♥ 5
Invests in
AI & Machine LearningDeep TechEnterprise SoftwareGamingHardwareHealthtech
Experience
- Anorak VenturesManaging Partnercurrent2016 — presentSan Francisco Bay Area
- ZeroTier, Inc.Board Membercurrent2022 — presentCalifornia, United States
- Marin Sonoma Impact VenturesAdvisorcurrent2020 — presentMarin County, California, United States
- GlassdoorBusiness Development/Product Marketing2014 — 2015San Francisco Bay Area
- AutodeskMarketing - Games Technology Group2011 — 2014San Francisco Bay Area
- ScaleformDirector of Marketing2010 — 2011Greenbelt, Maryland
- Pure FoodCo-Founder2004 — 2009London, United Kingdom
- BloombergSales/Analytics2002 — 2004Greater New York City Area
Education
- University of Maryland - Robert H. Smith School of BusinessBS, Marketing & International Business1997 — 2001
Skills & more
+12 more
Digital StrategyMobile DevicesAffiliate MarketingMarketing ManagementSales ManagementProduct DevelopmentWeb AnalyticsMarketing CommunicationsSEMStart-upsBusiness DevelopmentSearch Engine Marketing (SEM)From Greg's professional profile.
Same school
Also attended University of Maryland - Robert H. Smith School of Business31
+ 25 more
Shared employers
Also worked at ZeroTier, Inc.2
Also worked at Glassdoor10
+ 4 more
Also worked at Autodesk41
+ 35 more
Also worked at Bloomberg96
+ 90 more
Deals · 1
NanostarBoard seat
via Anorak Ventures · filed Nov 2022 · $15M raise
Attribution from SEC filings, press coverage, and firm rosters.
Colleagues at Anorak Ventures
Network2
Investors connected to Greg in public investor directories — a warm-intro map.



























