William Barnes
Founding Partner at Karman Ventures
Austin, Texas
William Barnes, Founding Partner at Karman Ventures is an active investor based in Austin, Texas. This profile covers what William Barnes backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelVCPE
- Stages
- Early Stage Venture
- Invests in
- Developer Tools & DataHR & Future of Work
- Location
- Austin, Texas
- Typical check
- $500K
- Past investments
- 16
Notable investments
Toolbx
SuperhumanGoEuro
Cargo
CloudApp
JUMP Bikes
SALIDOBird RidesStop Breathe Think PBC
Onna
ReplicatedHow to reach William Barnes
Angels and operators like William Barnes 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 Accelerator.
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Frequently Asked Questions
What does William Barnes invest in?
William Barnes invests in Developer Tools & Data and HR & Future of Work, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does William Barnes invest at?
William Barnes typically invests at Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is William Barnes's typical check size?
William Barnes typically writes checks around $500K. Use it as a signal for whether your raise fits their stage.
How do I contact William Barnes?
Unlock William Barnes's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.