Proof
PrivateLast Round
Growth Equity
Oct 27, 2025
Est. Valuation
$760M
Total Funding Raised
$226.35M
Company Overview
Proof operates in Enterprise Software and is based in Boston, Massachusetts. Its latest recorded funding round was a Debt round in September 2023.
Proof is a digital trust and identity infrastructure company that provides an identity-assured transaction management platform, including remote online notarization services.
Sector
Enterprise Software
Verticals
Digital Identity, Legal Tech, Compliance, PropTech Services
Business Model
B2B2C
Customer Profile
Usage-Based SaaS, Subscription SaaS
AI Layer
Application
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Proof Comparables
Compare Proof with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Snapdocs | 83% | |
| NotaryLive | 80% | |
| OneNotary | 80% |
For institutional investors. Book with your work email.
Proof Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Growth Equity | Oct 27, 2025 | ||||
| Debt | Sep 27, 2023 | ||||
| Series D | Mar 25, 2021 | ||||
| Series C | Mar 31, 2020 | ||||
| Series B | May 17, 2018 | ||||
Series A | Jun 13, 2016 |
For institutional investors. Book with your work email.
Key People
Founding team and executive leadership
For institutional investors. Book with your work email.
Proof Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Second Century Ventures | Series D, Series B |
| Citi Ventures | Series D |
| Founders Fund | Series B, Series A, Seed |
| TrueBridge Capital Partners | Series D |
| Ludlow Ventures | Series D, Series A, Seed |
| Fifth Wall | Series D, Series B |
| Wells Fargo | Series D |
For institutional investors. Book with your work email.
Market signals
Structured signals derived from secondary market and firmographic data.
- Oct 27, 2025
$56M round closed.
- Sep 27, 2023
$31M raised in debt financing.
For institutional investors. Book with your work email.
Proof Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
Book a demoFor institutional investors. Book with your work email.
Frequently Asked Questions
Common questions about Proof's valuation, stock price, and market status.
Is Proof a public or private company?
Proof is a private company.
What is the current stock price of Proof?
Proof is a private company, so its shares have no public market price. Caplight tracks Proof's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Proof worth (valuation)?
Proof's valuation is estimated at $760.0M based on funding round data.
Can I buy Proof stock?
Proof shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Proof's last funding round?
Proof's most recent funding round was Growth Equity on October 27, 2025.
Who are the main investors in Proof?
Key investors in Proof include Polaris Partners, Canapi Ventures, Camber Creek.
Will Proof IPO soon?
No public IPO plans have been announced for Proof.
How can I track Proof secondary market activity?
Caplight tracks bids, offers, and trades in Proof's shares on secondary markets.