• Harvey is privately held, incorporated in the United States and headquartered in San Francisco. The company has no public stock listing.

  • Two co-founders lead the company: CEO Winston Weinberg, a former lawyer, and Gabriel Pereyra, a former research scientist at Google DeepMind and Meta who serves as Chief Technology Officer.

  • Sequoia Capital and GIC co-led the most recent round, with Andreessen Horowitz, Kleiner Perkins, Coatue, and the OpenAI Startup Fund among the key backers. Total funding exceeds $1 billion.

  • Harvey reached an $11 billion valuation in March 2026, just months after a prior round valued it at $8 billion. The company serves more than 100,000 lawyers across 1,300 organizations.

Harvey has become the most closely watched company in legal AI. In under three years, it went from a seed-stage startup to an $11 billion business serving a significant share of the global legal profession. More than 100,000 lawyers across 1,300 organizations now run their most demanding work on Harvey's platform.

That trajectory raises a natural question: who actually owns Harvey? The answer matters because the company's ownership structure is genuinely unusual. The OpenAI Startup Fund backed Harvey at the seed stage. OpenAI is now both an investor and the primary model provider whose infrastructure Harvey's product runs on. That dual role creates a web of incentives that shapes every major decision the company makes.

This article breaks down Harvey's ownership structure, traces its funding history, identifies the key people in control, and explains what the ownership picture means for users and the legal industry.

Company overview

Harvey was founded in 2022 by Winston Weinberg and Gabriel Pereyra. Weinberg was previously a lawyer at Cravath, Swaine and Moore, one of the most prestigious corporate law firms in the United States. Pereyra was a research scientist at Google DeepMind and Meta AI before co-founding the company.

The company is headquartered in San Francisco. Harvey builds AI tools specifically for legal and professional services work: contract analysis, due diligence, regulatory compliance, litigation research, and document drafting. The product is designed to handle complex legal tasks that require subject matter expertise, not just general-purpose text generation.

Harvey's user base spans elite law firms, corporate legal departments, and professional services organizations. The company has publicly referenced clients including Allen and Overy (one of the largest global law firms), PricewaterhouseCoopers, and others. Harvey positions its platform as a system for professional judgment, not just document automation.

The company's most recent confirmed valuation is $11 billion, set in March 2026 following a $200 million funding round. Total disclosed funding exceeds $1 billion.

Ownership structure

Harvey is privately held

Harvey has no public stock. Its shares do not trade on any exchange. Ownership is distributed among founders, employees, and a concentrated group of venture capital and institutional investors. No IPO plans have been publicly announced.

Founder equity

Winston Weinberg holds a founder equity stake of undisclosed size. As CEO and co-founder of a company that has not disclosed specific ownership percentages, his precise economic stake is not publicly known. At a typical startup dilution trajectory, co-founder stakes at Series D-level valuations often range from mid-single digits to low double digits in percentage terms, depending on the size and number of funding rounds.

Gabriel Pereyra holds a co-founder stake, also undisclosed. His technical background from Google DeepMind and Meta is the foundation of Harvey's model development and AI architecture.

No specific voting structure or dual-class share arrangement has been publicly reported for Harvey.

Investors by funding round

Harvey has raised capital across multiple rounds in rapid succession:

Round

Date

Amount raised

Lead investor(s)

Valuation

Seed

Late 2022

$5M

OpenAI Startup Fund

Undisclosed

Series A

April 2023

$21M

Sequoia Capital

~$100M

Series B

December 2023

$80M

Sequoia Capital, Google Ventures (GV)

~$715M

Series C

July 2024

$100M

Kleiner Perkins

~$1.5B

Series D

December 2024

$300M

Sequoia Capital, Kleiner Perkins

~$8B

Series E

March 2026

$200M

Sequoia Capital, GIC

$11B

Harvey's valuation has grown more than 100x since its first disclosed round, compressing what might take a decade of typical startup growth into roughly 3.5 years.

Key institutional investors

Sequoia Capital is Harvey's most consistent financial backer, having participated in the seed round and led or co-led every major round through the Series E. That level of continuity across five rounds is significant: it signals that Sequoia views Harvey as one of its highest-conviction bets in the legal AI category.

GIC, Singapore's sovereign wealth fund, co-led the March 2026 Series E. GIC has become an increasingly active late-stage technology investor across AI and enterprise software.

Kleiner Perkins led the Series C and participated in the Series D, holding a meaningful stake from two rounds.

Andreessen Horowitz (a16z), Coatue Management, and EQT are also listed investors with undisclosed stake sizes.

Conviction Partners and Elad Gil represent early-stage backers who have continued to participate through later rounds.

The OpenAI relationship

The OpenAI Startup Fund invested in Harvey's seed round in late 2022. This was one of the fund's earliest investments, and it created a relationship that now has several layers.

OpenAI is simultaneously:

  1. An equity investor in Harvey through the Startup Fund

  2. The primary model provider whose large language models power Harvey's platform

  3. A competitor, to the degree that OpenAI's own products (ChatGPT Enterprise, GPT-4 in legal workflows) could displace Harvey's specialized offering

This triple role is structurally unusual. OpenAI's commercial decisions, specifically which models it releases and at what price, directly affect Harvey's product competitiveness and operating costs. At the same time, OpenAI benefits from Harvey's success because Harvey's usage drives revenue to OpenAI's API.

As Harvey grows, managing this relationship will be one of its more complex strategic challenges.

IPO signals

Harvey has not announced any plans for a public offering. The pace of its private fundraising, including a jump from $8 billion to $11 billion valuation in a matter of months, suggests the company has access to capital without needing public markets in the near term. No timeline for an IPO has been publicly discussed.

Key people in control

CEO: Winston Weinberg

Weinberg co-founded Harvey in 2022 after leaving Cravath, Swaine and Moore, where he worked as a corporate lawyer. His background gives him direct insight into the workflows, pain points, and professional standards of the legal industry Harvey serves. This domain expertise is cited by investors as a core reason for the company's early success: the product was built by someone who understood legal work from the inside.

As CEO and co-founder, Weinberg controls day-to-day operations and company strategy. His combined role as founder, operator, and domain expert gives him significant influence over product direction.

CTO: Gabriel Pereyra

Pereyra co-founded Harvey after research roles at Google DeepMind and Meta AI. His technical background shapes the company's approach to model development, safety, and evaluation. In a legal AI context, accuracy and reliability matter more than in consumer applications: a hallucinated legal citation has professional consequences. Pereyra's research pedigree is central to Harvey's claim that its platform is built for high-stakes professional use.

Board composition

The composition of Harvey's full board has not been publicly disclosed. Given that Sequoia Capital has participated in six rounds and led or co-led at least three of them, a Sequoia representative almost certainly holds a board seat. Kleiner Perkins, as a two-round lead investor, likely also has board representation. No board chair has been publicly identified.

Ownership history and timeline

Year

Event

2022

Harvey founded by Winston Weinberg and Gabriel Pereyra. OpenAI Startup Fund leads $5M seed round.

April 2023

$21M Series A led by Sequoia Capital. Valuation ~$100M.

December 2023

$80M Series B at ~$715M valuation. Sequoia and GV co-lead.

July 2024

$100M Series C at ~$1.5B valuation led by Kleiner Perkins.

December 2024

$300M Series D at ~$8B valuation. Sequoia and Kleiner Perkins co-lead.

March 2026

$200M Series E at $11B valuation. Sequoia and GIC co-lead. Total funding exceeds $1B.

Regulatory and controversy issues

Professional responsibility and unauthorized practice of law

Legal AI tools operate in a regulated profession. Lawyers in the United States are governed by bar associations and professional conduct rules. Using AI to draft legal documents, advise clients, or conduct research raises questions about unauthorized practice of law, professional responsibility, and competence standards.

Several bar associations have issued guidance on AI use in legal practice. Harvey's platform is designed to be used by lawyers, not to replace them, which positions it on the safer side of these regulatory lines. But as Harvey's capabilities expand, the boundaries between AI assistance and AI-driven legal judgment will be tested.

Accuracy and hallucination risk

Legal work demands high accuracy. An AI system that cites a nonexistent case, misquotes a statute, or mischaracterizes a contract clause can expose clients to liability and lawyers to disciplinary action. Harvey has emphasized its commitment to accuracy and citation verification, but the risk of AI hallucination in high-stakes professional work remains a live concern for regulators, bar associations, and potential enterprise customers.

Data confidentiality

Law firms handle among the most sensitive information in existence: client communications, unreleased deal details, litigation strategy, regulatory investigations. Any AI platform processing this information must meet stringent data isolation, confidentiality, and security requirements. Harvey has emphasized enterprise-grade data handling, but each new enterprise client requires independent assurance that their confidential matters are not used to train shared models.

Why ownership matters

Harvey's ownership structure has direct implications for the millions of lawyers and legal professionals who may eventually use its platform.

The OpenAI relationship is the most consequential ownership detail. If OpenAI decides to compete more directly in the enterprise legal market, Harvey's position as a preferred application layer becomes more complicated. The two companies' incentives are currently aligned: Harvey drives API revenue for OpenAI, and OpenAI provides the model capabilities that power Harvey's product. If that alignment breaks, ownership will matter a great deal.

Sequoia's multi-round backing gives it significant economic stake and likely board influence. Sequoia has a track record of pushing portfolio companies toward IPOs or acquisitions at scale. As Harvey's valuation approaches levels where public market comparisons become relevant, that influence could shape the company's trajectory.

For users, the ownership picture signals durability. Harvey is not thinly funded: with more than $1 billion raised and backing from some of the most credible investors in enterprise software, the company is positioned to sustain long-term product investment.

Frequently asked questions

Who is the CEO of Harvey?

Winston Weinberg is the CEO and co-founder of Harvey. He co-founded the company in 2022 after working as a lawyer at Cravath, Swaine and Moore. His legal background is central to how the company has built and positioned its product.

Is Harvey publicly traded?

No. Harvey is a privately held company with no public stock listing. No IPO has been announced.

Who founded Harvey?

Harvey was co-founded in 2022 by Winston Weinberg (CEO, former lawyer) and Gabriel Pereyra (CTO, former research scientist at Google DeepMind and Meta).

Who are the biggest shareholders of Harvey?

Exact ownership percentages are not publicly disclosed. The most consistent institutional backer is Sequoia Capital, which has participated in every known round. Other major investors include GIC, Kleiner Perkins, Andreessen Horowitz, Coatue, Google Ventures (GV), and the OpenAI Startup Fund.

How much has Harvey raised in total funding?

Harvey has raised more than $1 billion in total funding across six known rounds, most recently a $200 million Series E in March 2026 at an $11 billion valuation.

What is Harvey's relationship with OpenAI?

The OpenAI Startup Fund was Harvey's seed investor. OpenAI also provides the large language models that underpin Harvey's platform. This makes OpenAI simultaneously an investor, a key supplier, and a potential competitor: a structurally unusual arrangement that analysts and investors have flagged as worth monitoring.

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