William Douglas, Managing Partner at Caius Capital LLP is an active investor based in London, England. This profile covers what William Douglas backs, at which stage, and how founders can reach out in 2026.
William Douglas invests in Fintech and SaaS & Enterprise, typically at Seed and Series A.
- Location
- London, England
- Typical check
- $625K
What does William Douglas invest in?
- Investor type
- VC
- Invests in
- FintechSaaS & Enterprise
Where is William Douglas based?
William Douglas is based in London, England.
- Browse more startup investors near William Douglas:
- Startup investors in LondonStartup investors in the UK
How to reach William Douglas
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About this profile
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Cite this page
Round Funded. "William Douglas." Round Funded investor database, updated September 22, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/william-douglas
Frequently Asked Questions
Who is William Douglas?
William Douglas, Managing Partner at Caius Capital LLP is an active investor based in London, England. William Douglas invests in Fintech and SaaS & Enterprise, typically at Seed and Series A.
What does William Douglas invest in?
William Douglas invests in Fintech and SaaS & Enterprise, typically at Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does William Douglas invest at?
William Douglas typically invests at Seed and Series A. Lead with traction that fits the stage when you reach out.
What is William Douglas's typical check size?
William Douglas typically writes checks around $625K. Use it as a signal for whether your raise fits their stage.
Where is William Douglas based?
William Douglas is based in London, England.
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.
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