David Castle is an angel investor and operator angel based in London, England, United Kingdom with 9 known investments: Pushfor, BPX Digital Securities Exchange, Barac, Flatzapp Ltd, Midatech Pharma, Polly Portfolio, Simudyne, Waltham Analytics and Waltham Partners Ltd.
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Investment focus
- Stage
- Seed
- Sector
- FinTechHealthcare
- Focus
- AnalyticsBusiness IntelligenceCybersecurityData AnalyticsEnterprise SaaSFinancial Risk ManagementRegTechRegulatory Compliance
Contacts
David Castle portfolio companies (9)
- Pushfor
- BPX Digital Securities Exchange
- Barac
- Flatzapp Ltd
- Midatech Pharma
- Polly Portfolio
- Simudyne
- Waltham Analytics
- Waltham Partners Ltd
Investor Profile
Founders in the listed sectors FinTech and Healthcare, and focus areas Analytics, Business Intelligence, Cybersecurity and Data Analytics will recognize the pattern in this portfolio.
Stage-wise, the known deals cluster around Seed rounds.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
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Frequently asked questions
Who is David Castle?
David Castle is an angel investor and operator angel based in London, England, United Kingdom with 9 known investments on file, among them Pushfor, BPX Digital Securities Exchange and Barac. The sections above list the sectors and stages attached to that record.
What does David Castle invest in?
Listed sectors include FinTech and Healthcare; listed focus areas include Analytics, Business Intelligence, Cybersecurity and Data Analytics. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does David Castle invest at?
The known deals of David Castle include Seed rounds. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
How do I contact David Castle?
An email address, a phone number and a LinkedIn page are on file for David Castle. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal