Wordsmith Raises $70M to Help Corporate Legal Teams Cut Law Firm Spending

Legal AI startup Wordsmith has closed a $70 million Series B, bringing its total funding to $100 million raised in just 24 months. The round was led by Index Ventures and Highland Europe. The Edinburgh-founded company makes software for in-house corporate legal teams — pulling requests from email, Slack, Teams, and Salesforce, drafting contracts, answering legal questions, and routing matters to the right person. More than 500 companies now use it, including Canva, the Financial Times, Safelite, Trip.com, and British telecom giant BT.

The company's core thesis is a direct challenge to Big Law economics: AI should help corporations send less work to outside law firms, not help those firms do that work faster. Founder and CEO Ross McNairn — a trained lawyer turned serial tech entrepreneur — says trying to serve both sides is a genuine conflict of interest. He claims Wordsmith walked away from potential seven-figure law firm contracts early on rather than compromise its positioning. That's a notably different stance from rivals like Harvey, which now says in-house clients account for 40% of its business after originally targeting law firms.

McNairn's background shaped the company's founding story. After selling his first startup, Dorsai Travel, to Skyscanner in 2014, he held senior roles at Skyscanner and TravelPerk. A General Catalyst-arranged visit to OpenAI's offices gave him an early look at large language model capabilities. He tested the technology inside TravelPerk by building a tool to triage a backlog of travel changes and cancellations — work that had required a full team. The tool cleared the queue overnight, and McNairn left shortly after to build Wordsmith. Index Ventures, whose early bets include Figma, Dropbox, and Slack, handed him a term sheet before he had even officially departed his previous job.

The competitive landscape has heated up fast. GC AI raised $60 million last year after growing annualized revenue from $1 million to $10 million in under 12 months. Contract-focused startups like Spellbook, Ivo, and SimpleDocs are also competing for parts of the same market. The larger existential question is what happens if Anthropic's Claude — already rolling out dozens of legal-task agents — becomes the default AI layer across entire organizations. McNairn's counter-argument: sales teams don't abandon Salesforce just because they have Claude, and finance teams don't drop accounting software for a chatbot. Legal departments, he contends, still need workflow routing, permissions management, playbook enforcement, record-keeping, and audit trails that a general-purpose assistant can't provide.