Harvey hit $100M ARR just three years after launch.
The AI legal platform helps law firms and big corporations with research, drafting, and diligence tasks. It’s already got 500+ customers, including Comcast, CNBC’s parent company. Weekly users have quadrupled in the past year.
CEO Winston Weinberg says growth is mostly from usage. Big accounts start with a few hundred seats and then scale fast. 
“Most of our accounts grow pretty massively,” Winston Weinberg said.
“You’ll sell to a Comcast or to a law firm, and they’ll buy a couple hundred seats, and then they expand that usage pretty quickly.”
Weinberg, a former lawyer, co-founded Harvey in 2022 alongside Gabe Pereyra, who previously worked at Google DeepMind and Meta. They used OpenAI’s GPT-3 early on to build the product.
The startup’s name comes partly from a character on the legal drama Suits.
Harvey raised over $800M from investors like Kleiner Perkins, Sequoia, and the OpenAI Startup Fund. It made the 2025 CNBC Disruptor 50 list.
Weinberg highlights rapid scaling as key in generative AI’s fast-moving world.
“With gen AI, and how fast everything’s moving, you just have to learn how to scale really, really fast,” he said.
“I’d say, like every six months I go through a new scaling experience.”
Harvey plans global expansion and team growth. Recent hires include Siva Gurumurthy, ex-Twitter engineering director, as CTO, and John Haddock, formerly at Stripe, as chief business officer.
Weinberg says strong leadership is now helping them scale faster.
“We’re starting to get to the point where we have really good leadership in place,” he said.
“That just changes your ability to scale to such a massive degree.”
Disclosure: Comcast owns NBCUniversal, which owns CNBC.
