Definely Tech Stack

AI-powered legal document drafting integrated into Microsoft Word

Software Development London, England 51–200 employees Founded 2017 Privately Held

Definely builds a Microsoft Word add-in for legal document creation, review, and understanding—positioning itself as workflow-embedded rather than replacing existing tools. The tech stack reveals an LLM-first architecture: Claude for intelligence, RAG + Neo4j for knowledge graphs, and LangGraph for agentic workflows. Current projects center on agent-driven legal automation and RAG integration, while the hiring mix (mostly senior engineers across a 51–200 org) and pace suggest product acceleration post-foundation.

Tech Stack 24 technologies

Core StackReact TypeScript JavaScript AWS Docker Kubernetes RAG Neo4j HubSpot Gong Zapier Salesforce Ashby HTML CSS Office.js Word Microsoft 365 Git Claude LangGraph Notion Excel Google Sheets

AdoptingRAG

What Definely Is Building

◆Challenges

Optimising processes
Expanding into new markets
Improving topline performance
Reducing friction in customer journey
Accelerating development of legal technology products
Overcoming office.js limitations
Closing new business with in-house legal teams
Improving recruitment and onboarding workflows
Inconsistent ats usage across teams
Over-engineering people operations

▲Active Projects

React applications integrated with office.js
Office add-in development for legal documents
Representing at fairs and conferences
Expansion into new markets and industry verticals
Preparation of business development resources and collateral
Llm agents for legal workflow automation
Rag and knowledge graph integration
Territory planning
Segmentation
Performance reporting

Hiring Activity

Accelerating15 roles · 9 in 30d

Department

Engineering

Sales

Marketing

Ops

Seniority

Senior

Junior

Mid

Staff

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About Definely

Definely is a LegalTech SaaS provider founded in 2017, headquartered in London. The platform delivers document drafting, review, and clause navigation as a Microsoft Word add-in, allowing in-house legal teams and lawyers to work within their existing tools rather than context-switching to a separate application. The product surfaces definitions, clause references, and cross-document context on demand. Customers are primarily mid-market and enterprise legal departments. The company operates across the United Kingdom and United States with a 51–200 person team.

HeadquartersLondon, England

Company Size51–200 employees

Founded2017

Hiring MarketsUnited Kingdom, United States

Frequently Asked Questions

What tech stack does Definely use?

Frontend: React, TypeScript, JavaScript, HTML, CSS; Office integration: Office.js, Word, Microsoft 365; backend/data: AWS, Docker, Kubernetes, Neo4j, RAG; AI: Claude, LangGraph; CRM/ops: HubSpot, Salesforce, Ashby, Gong, Zapier.

What is Definely working on?

Core projects include React+Office.js application development, Office add-in expansion, LLM agents for legal workflow automation, RAG and knowledge graph integration, and market expansion into new verticals.