At a Glance
| Detail | Spellbook | Supio |
|---|---|---|
| Category | GenAI & Drafting | GenAI & Drafting |
| Total raised | $81.5M | $85M |
| Rounds tracked | 4 | 2 |
| Latest round | Series B, $50M · Oct 2025 | Series B, $60M · Apr 2025 |
| Last valuation | $350M | Not disclosed |
| Lead investors | Khosla Ventures, Inovia Capital, Moxxie Ventures | Sapphire Ventures |
| Built for | Mid-size firms, Boutiques | Not disclosed |
| Headquarters | Canada | US |
Funding, Side by Side
Spellbook rounds
- Oct 2025Series B$50M
- Jan 2024Series A$20M
- May 2023Undisclosed$10.9M
- Dec 2019Pre-Seed$567K
Supio rounds
- Apr 2025Series B$60M
- Aug 2024Series A$25M
Backed by both: Thomson Reuters Ventures.
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, Spellbook or Supio?
- Supio has raised $85M in disclosed funding, compared with $81.5M for Spellbook.
- Do Spellbook and Supio share investors?
- Yes. Thomson Reuters Ventures backed both.
- What is Spellbook best for?
- Spellbook is an AI contract review and drafting tool for transactional lawyers that works inside Microsoft Word.
- What is Supio best for?
- Supio makes AI software that helps plaintiff law firms organize case records and prepare for trial.
Source: Legal Tech Circle funding data, from public announcements. Updated November 10, 2026.