At a Glance
| Detail | Crosby | Summize |
|---|---|---|
| Category | CLM | CLM |
| Total raised | $85.8M | $57M |
| Rounds tracked | 3 | 3 |
| Latest round | Series B, $60M · Mar 2026 | Undisclosed, $50M · Jan 2026 |
| Last valuation | Not disclosed | Not disclosed |
| Lead investors | Lux Capital, Index Ventures, Sequoia Capital, Bain Capital Ventures | Maven Capital Partners, YFM Equity Partners, NPIF - Maven Equity Finance |
| Built for | Not disclosed | Not disclosed |
| Headquarters | US | United Kingdom |
Funding, Side by Side
Crosby rounds
- Mar 2026Series B$60M
- Oct 2025Series A$20M
- Jun 2025Seed$5.8M
Summize rounds
- Jan 2026Undisclosed$50M
- Oct 2022Series A$5.7M
- Dec 2020Undisclosed$1.3M
Our Take
We have not tested these two head to head yet. The numbers above come from public funding announcements. If you use either one, tell us what you found and it may become a Field Note.
Quick Answers
- Which has raised more, Crosby or Summize?
- Crosby has raised $85.8M in disclosed funding, compared with $57M for Summize.
- Do Crosby and Summize share investors?
- No. None of the investors we track have backed both companies.
- What is Crosby best for?
- Crosby operates an AI-assisted legal service in which software agents and lawyers review, redline, and negotiate commercial contracts through email, Slack, and CLM workflows.
- What is Summize best for?
- AI contract lifecycle management that works inside Teams, Slack and Word.
Source: Legal Tech Circle funding data, from public announcements. Updated November 10, 2026.