Key facts
- Proof (Boston)’s last known valuation is $1.0B (Nov 2025).
- It has raised $321.3M; the latest was Later Stage VC ($80.0M) in Nov 2025.
- Notable investors include Founders Fund, Citi Ventures, Long Journey Ventures, Fifth Wall, Ludlow Ventures — 34 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 34 names
- ·Watchlist + deal alerts for Proof (Boston)
- ·The full record, as it builds
Funding rounds
No funding rounds for Proof (Boston) are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Proof (Boston)
Developer of a secure transaction management platform designed for enhanced identity validation for participants. The company's platform offers tools to link verified real-world identities to any kind of digital interaction, providing a scalable infrastructure to prevent fraud, enabling clients to enhance trust across all customer and employee interactions.
- Sector
- Information Technology
- HQ
- Boston, MA, United States
- Founded
- 2015
- Employees
- 409
- Website
- proof.com/
- Ownership
- Privately Held (backing)
Proof (Boston) doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Proof (Boston) shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Proof (Boston) in its N-PORT filings yet. We sweep new filings monthly.