Spellbook
The AI Copilot for Lawyers. Draft & review at the speed of magic.
140 employees · est. 2018 · Toronto, Canada
ThoughtRiver is the older company (2018 vs 2016); Spellbook is the larger of the two.
Side-by-Side Comparison
| Metric | Spellbook | ThoughtRiver |
|---|---|---|
| Founded | ||
| Founded | 2018 | 2016 older |
| Headquarters | ||
| Headquarters | Toronto, Canada | Cambridge, United Kingdom |
| Employees | ||
| Employees | 140 larger | 11 |
| Industry | ||
| Industry | AI, Developer Tools, Legal Tech | AI, Legal Tech |
| Funding Stage | ||
| Funding Stage | Series B | Series A |
| Total Funding | ||
| Total Funding | $82.42M | $13.00M |
| Funding Rounds | ||
| Funding Rounds | 8 | 2 |
| Services | ||
| Services | Contract Review, Contract Drafting, Legal Risk Assessment, AI-driven Answers and Insights, Comparative Benchmarking | AI-powered contract review, Contract analysis and workflows, Legal AI integration and automation, Real-time contract analytics |
| Target Customers | ||
| Target Customers | Commercial Lawyers, In-house Legal Teams, Transactional Law Firms, Midsize and Large Law Firms, Legal Professionals in Real Estate, Intellectual Property, Estate Planning, Entertainment Law, Mergers and Acquisitions | Legal professionals, In-house legal teams, Business procurement teams, Legal IT and Technology partners |
| Taxonomy | ||
| Taxonomy | AI For Lawyers, Generative AI, Contract Drafting, Legal Technology, Transactional Law, Contract Review, Legal Software, GPT-4, Language Models, Legal Automation, Contracting Performance, Legal AI Solutions, Document Review | Contract Review Software, Contract Intelligence, Automated Contract Review, Contract Acceleration Platform, Legal Tech, Business Value, Job Satisfaction, Strategic Work, Problem-solving, Creative Solutions, Legal Services, AI-powered Contract Review, Legal Industry Innovation, Efficient Contract Management, Legal Technology |
| Website | ||
| Website | spellbook.legal | thoughtriver.com |
About Spellbook
Spellbook, founded in 2018, is revolutionizing the legal industry with its AI-driven solutions tailored specifically for transactional lawyers. Promoted as "The AI Copilot for Lawyers. Draft & review at the speed of magic.", the platform is not just an idea but a proven product embraced by over 3,00...
About ThoughtRiver
ThoughtRiver, founded in 2016, has quickly risen as a leader in the Legal Tech space, offering an AI-powered platform that accelerates contract review processes. Their product integrates human-led, legally trained data into a proprietary LLM, ensuring unparalleled accuracy and relevance in contract...
We will tell you when either one moves
BounceWatch watches Spellbook and ThoughtRiver for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at Spellbook and ThoughtRiver — by email.
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Compiled from the BounceWatch company index. We last looked at Spellbook on 12 Dec 2025, and ThoughtRiver on 11 Sep 2024. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.