John Williams
Investor at Alcatraz AI
Seattle, Washington
John Williams, Investor at Alcatraz AI is an active investor based in Seattle, Washington. This profile covers what John Williams backs, at which stage, and how founders can reach out in 2026.
- Investor type
- Angel
- Stages
- Pre SeedSeed
- Invests in
- CybersecurityDeveloper Tools & Data
- Location
- Seattle, Washington
- Typical check
- $150K
- Past investments
- 4
Notable investments
How to reach John Williams
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Cite this page
Round Funded. "John Williams." Round Funded investor database, updated September 28, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/john-williams
Frequently Asked Questions
What does John Williams invest in?
John Williams invests in Cybersecurity and Developer Tools & Data, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does John Williams invest at?
John Williams typically invests at Pre Seed and Seed. Lead with traction that fits the stage when you reach out.
What is John Williams's typical check size?
John Williams 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.