Harvey : 15,6 Md$, l'IA « services pro » devient un marché
Legal AI startup Harvey has raised $550 million at a $15.6 billion valuation, capping a remarkable six-month run that has seen its valuation jump more than 40% as annual recurring revenue climbed past $400 million.
The round was co-led by Lightspeed Venture Partners and Diffusion, a new investment firm co-founded by longtime Harvey backer and former Coatue investor Kris Fredrickson. Sapphire Ventures and Whale Rock Capital Management joined the financing alongside existing investors. Harvey has now raised more than $1.5 billion since its founding in 2022.
The deal’s numbers help explain why investors are willing to pay up. Harvey now serves more than 3,000 organizations, up from roughly 1,300 earlier this year. Its customers include Latham & Watkins, Microsoft’s in-house legal team, and 80% of the Am Law 100. Five Fortune 10 companies use its software.
At $400 million in ARR, Harvey’s new valuation works out to roughly 39 times annual recurring revenue. That is a steep multiple by traditional software standards, but Harvey is no longer being valued like a traditional legal software company. Investors are betting that legal AI could become one of the largest enterprise software categories created by generative AI.
The bet is getting bigger.
Harvey said the new capital will support its push to develop proprietary AI models, following the release of its first post-trained open-weight legal model and Harvey LAB, a benchmark for testing legal AI agents.
That strategy could prove just as significant as the funding itself.
Harvey built its early product using OpenAI technology. Developing more of its own models could reduce its dependence on outside AI providers such as OpenAI and Anthropic, give Harvey greater control over performance and costs, and keep more sensitive legal workloads inside its own technology stack.
The company is already moving beyond AI-assisted drafting and research. Legal AI agents are being built to carry out multi-step work across contracts, due diligence, litigation, compliance, and other tasks once handled almost entirely by lawyers and support staff.
Harvey’s acquisition of AI-agent security startup Guardrails AI this week, reported by The Next Web, points in the same direction. As AI systems gain permission to take actions rather than simply generate text, security and control become much bigger concerns for law firms handling confidential client information.
“Today, Harvey announced a $550M funding round at a $15.5B valuation, co-led by Diffusion and Lightspeed Venture Partners. The raise follows the introduction of Harvey’s first post-trained open-weight model and the launch of Harvey LAB, the Legal Agent Benchmark. It will accelerate Harvey’s efforts to help law firms, in-house legal teams, and professional services firms build and own their intelligence at scale,” Harvey said in a blog post.
Bloomberg reported a slightly higher valuation of $15.6 billion for the transaction.
Few vertical AI startups have climbed this quickly.
Harvey was valued at $3 billion in February 2025 and $5 billion four months later. An Andreessen Horowitz-led financing lifted the company to $8 billion in December. By March 2026, another $200 million round co-led by Sequoia Capital and Singapore’s GIC valued Harvey at $11 billion.
Six months later, that figure has reached $15.6 billion.
Harvey Founders
Harvey is facing growing competition for the same legal AI budgets. Swedish rival Legora has reportedly sought financing at a valuation above $10 billion, setting up a race to become the dominant AI platform inside law firms and corporate legal departments.
Harvey co-founders Winston Weinberg and Gabe Pereyra see the next phase as much larger than selling lawyers an AI assistant.
“The opportunity for companies to accelerate their competitive advantage with AI has never been higher. Harvey wants to be the global partner legal teams turn to for this work, and we plan to hire and develop the best team in the space to support our clients through the next wave of AI transformation,” the founders said.
Weinberg, a former O’Melveny & Myers litigator, and Pereyra, a former Google DeepMind and Meta researcher, started Harvey in 2022 after experimenting with early versions of GPT-3.
Four years later, Harvey has crossed $400 million in recurring revenue and attracted a valuation once reserved for major public software companies.
The bigger story may be what that says about legal AI itself. Legal work is becoming one of the clearest examples of generative AI moving from an experimental tool to a major enterprise software market. Harvey’s $15.6 billion valuation is a very expensive bet that this shift is still in its early innings.