Spellbook vs Clio
Side-by-side comparison of AI visibility scores, market position, and capabilities
#1 legal AI for contract review and drafting. 4,000+ law firms. $50M Series B (Oct 2025), on track for $100M ARR in 2026. Founded 2018, Toronto. Private.
About
Spellbook is the leading AI platform for transactional lawyers, founded in 2018 by Scott Stevenson, Daniel Maria, and Matt Mayers, headquartered in Toronto, Canada. The platform integrates directly into Microsoft Word and uses frontier LLMs including GPT-5 and Claude to help lawyers review, draft, and negotiate contracts. Key products include Spellbook Associate, the first AI agent for multi-document transactional drafting.
Burnaby cloud legal practice management at $1.6B valuation serving 150,000+ attorneys; $200M TCV/Bessemer-backed competing with MyCase and Practice Panther through Clio Duo AI for law firm billing and case management.
About
Clio is a Burnaby, British Columbia-based cloud-based legal practice management platform — backed with $200 million raised at a $1.6 billion valuation from TCV, Bessemer Venture Partners, and Salesforce Ventures — providing law firms of all sizes with case management, time tracking and billing, client communication, document management, and legal accounting in a unified practice management system. Founded in 2008 by Jack Newton and Rian Gauvreau, Clio serves 150,000+ legal professionals globally, making it the most widely used cloud legal management software for solo and small law firms (the 2-50 attorney segment that represents 90%+ of US law firms by count).
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