Where is Definely headquartered?

Definely is headquartered in London, UK.

What does Definely do?

Definely operates in the AI in Legal sector. An AI-powered productivity suite that helps lawyers draft, review, and understand legal documents more efficiently within their existing workflows. To simplify the way legal professionals review complex documents by providing instant access to relevant information without losing context, thereby increasing efficiency and accuracy.

When was Definely founded?

Definely was founded in 2017. It is based in London, UK.

Who is the CEO of Definely?

Nnamdi Emelifeonwu is the CEO of Definely. The company was founded in 2017.

Where is Definely located?

Definely is headquartered in London, UK.

What funding stage is Definely at?

Definely is currently at the Scaling stage.

Definely

Category: AI in Legal

An AI-powered productivity suite that helps lawyers draft, review, and understand legal documents more efficiently within their existing workflows. Definely was founded in 2017. The company is led by Nnamdi Emelifeonwu. Based in London, UK. Total funding raised: $40 million. Latest round: Series B. Key investors include Revaia, Octopus Ventures, M12 (Microsoft's Venture Fund), CRE Venture Capital, Alumni Ventures, Beacon Capital.

Founded: 2017
Headquarters: London, UK
Total funding: $40 million

Value proposition

To simplify the way legal professionals review complex documents by providing instant access to relevant information without losing context, thereby increasing efficiency and accuracy.

Products and solutions

Read: Navigate and understand complex contracts (formerly Draft)., Proof: Audit and fix document errors., Cascade: Identify the ripple effects of changes and mark-up (launched Aug 2025)., Enhance: AI-powered contract analysis (multi-agent AI system)., Vault: Secure document indexing and precedent search., Definely MCP: Contract review tools available in Claude and, from September 2026, ChatGPT Enterprise, including defined-term validation, precedent search, structural review, proofreading, and issues lists.

Unique value

The product was developed from the co-founders' direct experience as lawyers, especially catering to the accessibility needs of co-founder Feargus MacDaeid, who is registered blind. This has resulted in a human-first, accessibility-focused design that integrates directly into Microsoft Word.

Target customer

Law firms and in-house corporate legal teams.

Industries served

Legal Services

Technology advantage

Definely's core advantage is its seamless integration into Microsoft Word, which is a standard tool for lawyers. This avoids disruption to existing workflows and has led to rapid user adoption. Their AI is advancing towards 'agentic' capabilities, able to handle complex tasks with minimal human intervention.

How they differentiate

Definely differentiates itself by functioning as a productivity-enhancing suite within existing workflows (MS Word), rather than replacing them. Its focus is on making lawyers faster and more accurate. The company's unique origin story and commitment to accessibility also set it apart.

Main competitors

Robin AI, Clio, Superlegal

Key partnerships

Microsoft (M12 Venture Fund investment), Google (Recipient of Google for Startups' European Black Founders Fund), Anthropic (Claude for the legal industry partnership, May 2026), Clio (strategic investor and partner)

Notable customers

A&O Shearman, Slaughter and May, DLA Piper, Dentons, Deloitte, Allen & Overy, BT Group, P&O Cruises, KPMG, Samsung

Major milestones

Secured a $30M Series B funding round in 2025., Named one of the 50 fastest-growing tech companies in the UK by Deloitte in 2023., Recognized by Tech Nation as a 'Rising Star'., Received funding from the Google for Startups' European Black Founders Fund., Launched Cascade, a first-of-its-kind solution tracking knock-on effects of contract changes (Aug 2025)., Appointed Sigurjón Ísaksson as CTO (Jan 2026)., Achieved ISO 42001 certification, the global benchmark for AI risk governance (June 2026)., Partnered with Anthropic on Claude for the legal industry (May 2026).

Growth metrics

Almost tripled its annual recurring revenue (ARR) in 2024. The platform has over 40,000 active users.

Market positioning

Positioned as an essential, integrated productivity tool for lawyers working on complex, high-stakes contracts, emphasizing efficiency, accuracy, and ease of use.

Geographic focus

Global, with a strong presence and expansion focus in the UK, US, Canada, and Australia. The US market currently accounts for 30% of its revenue.

Patents and IP

Information not publicly available.

About Nnamdi Emelifeonwu

Nnamdi Emelifeonwu is the Co-founder and CEO of Definely, a legal technology company he started with his co-founder, Feargus MacDaeid, in 2017. Before founding Definely, he was an associate at Freshfields Bruckhaus Deringer, a multinational law firm. His experience as a lawyer directly inspired the creation of Definely, which aims to make legal documents easier to read and understand.

More AI in Legal companies

Official website: https://www.definely.com/