Winston Weinberg, a former junior lawyer, co-founded legal AI startup Harvey in 2022 with Gabe Pereyra, a former DeepMind research scientist. In just three years, Harvey has grown to serve more than 500 clients, including major law firms and corporations such as KKR and Bridgewater Associates, and now reports an annual recurring revenue of $100 million and a valuation of $5 billion, according to the Financial Times.
The company uses large language models to automate legal tasks such as document review and legal research, with the aim of freeing up lawyers to focus on more complex work. Harvey first gained traction when global law firm A&O Shearman became its initial client. Since then, the startup has attracted a roster of high-profile investors, including Kleiner Perkins, Sequoia, OpenAI, and Google Ventures.
While the AI legal sector has seen growing interest, it remains a cautious market due to sensitivities around client data and lawyers’ risk aversion. Critics have questioned whether Harvey offers more than standard AI tools, but the company emphasizes its legal-specific design, bulk document handling, and enterprise-grade security as key differentiators.
Weinberg, who spends half the year living out of hotel rooms while running the company, says he believes in moving quickly but carefully. He predicts that while some routine legal tasks may shift to fixed fees, high-end partners’ billable hours will remain largely unchanged in the near future.
Harvey has also formed a partnership with LexisNexis to develop tools for motions to dismiss and summary judgment arguments, and the company is expanding internationally with new offices planned in Australia, Toronto, Germany, and India, alongside its existing London, New York, and San Francisco bases.
With competitors like Luminance, Legora, and Noxtua in the market, Harvey’s early entry and strong backing have given it a leading position in the legal AI space. The startup may pursue a public listing in the future but currently intends to remain independent.
Weinberg reflects on the company’s rapid growth with a measured perspective, noting that despite the fast pace, the priority is to execute well without creating unnecessary disruption.
