Sebastian Tonkin is an angel investor and operator angel based in San Francisco, California, United States with 2 known investments: Hatch and TriNet Zenefits.
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Investment focus
- Stage
- Seed
- Focus
- CRMEnterprise SaaSMarketplacesPropTechSales TechTransaction CoordinationVendor ManagementWorkflow Automation
Contacts
Sebastian Tonkin portfolio companies (2)
- Hatch
- TriNet Zenefits
Investor Profile
The listing covers sectors Commerce, Consumer, Real Estate and SaaS, and focus areas CRM, Enterprise SaaS, Marketplaces and PropTech. Startups operating in these areas may find Sebastian Tonkin relevant.
Sebastian Tonkin appears in Seed rounds across the known deals.
The portfolio and focus above give founders context on whether Sebastian Tonkin matches their raise.
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Frequently asked questions
Who is Sebastian Tonkin?
Sebastian Tonkin is an angel investor and operator angel based in San Francisco, California, United States with 2 known investments on file, among them Hatch and TriNet Zenefits. The sections above list the sectors and stages attached to that record.
What does Sebastian Tonkin invest in?
Listed sectors include Commerce, Consumer, Real Estate and SaaS; listed focus areas include CRM, Enterprise SaaS, Marketplaces and PropTech. 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 Sebastian Tonkin invest at?
The known deals of Sebastian Tonkin 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 Sebastian Tonkin?
An email address and a LinkedIn page are on file for Sebastian Tonkin. The address stays masked on this page and is readable inside RaiseHunt after you create an account. The database holds no phone number for this profile.
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Data: RaiseHunt investor dataset · Snapshot 6 September 2026 · How this data is built · Report a correction or request removal