AI in Legal & Compliance: what 204 companies use
Which AI tools the Legal & Compliance companies on usedby use, area by area, with the public page behind each line.
204
companies with a public AI tool
usedby lists 204 Legal & Compliance companies with at least one public AI tool. Harvey is the most used: 139 of them (68%). Then come Legora (45) and Claude (4). They use 1.3 AI tools on average. Harvey (14 AI tools) and Legora (14 AI tools) use the most.Latest check Oct 8, 2026: 247 of 275 public lines checked. Shares are of the 204 companies on usedby, not of the whole industry: we list a company when a public page shows its AI tools.
Most used tools
Share of the 204 Legal & Compliance companies on usedby that use each tool
Harvey is the most used AI tool among the 204 Legal & Compliance companies on usedby: 139 of them (68%) use it. Legora follows with 45 (22%).
Who uses what
AI tools per area at the 8 Legal & Compliance companies with the most tools on usedby. Areas are tool categories: too few lines name the team.
| Company | Legal & HR | Engineering & Data | Operations & Workflow | Marketing & Content | Research & Knowledge | Sales & Growth | Support & CX |
|---|---|---|---|---|---|---|---|
 Harvey | Juicebox and Vanta | LangSmith, Snowflake, Baseten, Mistral, and Langchain | Notion, Glean, and Reducto | 0 | You.com | ZoomInfo and Salesloft | 0 |
 Legora | Ironclad | Modal, Snowflake, and Claude | Serval, incident.io, Notion, and Reducto | 0 | 0 | Clay, ZoomInfo, and Attio | Intercom |
 Thomson Reuters | Paraform and SeekOut | Vespa, Torq, AWS Bedrock, and Claude | HighRadius and Kore.ai | Frase | 0 | ZoomInfo | 0 |
 OneTrust | BrightHire | Databricks and Snowflake | 0 | 0 | 0 | Aviso | 0 |
 Ironclad | BrightHire and Vanta | 0 | 0 | AirOps | 0 | Actively | 0 |
 Latham & Watkins LLP | Harvey | 0 | 0 | 0 | Hebbia and Perplexity | 0 | 0 |
 EvenUp | 0 | Claude | Dust | 0 | 0 | 0 | 0 |
 Gunderson Dettmer | DeepJudge and Harvey | 0 | 0 | 0 | Perplexity | 0 | 0 |
Scroll sideways for more areas.
Harvey has AI tools in 5 of these 7 areas. Engineering & Data holds the most tools at these companies: 15 in total.
Where AI lands
Share of the 204 Legal & Compliance companies on usedby with at least one tool in each area.
Legal & HR is the most covered area: 183 of the 204 companies (90%). Meeting & Voice is the least covered, with 3 (1%).
Newest changes
New tools across the 204 Legal & Compliance companies on usedby, last 90 days.
How to choose AI tools in Legal & Compliance
For each of the most used categories, the tool most Legal & Compliance companies on usedby use, and the next one. Based on public use, not on our opinion.
Cohere is next, with 1.
Perplexity is next, with 2.
Glean is next, with 2.
204 Legal & Compliance companies on usedby
Each company links to its AI stack and the proof behind each tool.
- Harvey14 tools
- Legora14 tools
- Thomson Reuters10 tools
- OneTrust4 tools
- Ironclad4 tools
- Latham & Watkins LLP3 tools
- EvenUp3 tools
- Gunderson Dettmer3 tools
Axiom3 tools
DISCO3 tools
Spellbook3 tools
CMS2 tools
Dentons2 tools
Orrick Herrington & Sutcliffe2 tools
Cuatrecasas2 tools
Herzog Fox & Neeman2 tools
LegalZoom2 tools
Lenz & Staehelin2 tools
Pérez-Llorca2 tools
Vieira de Almeida2 tools
Al Tamimi & Company2 toolsFASKEN2 tools
Filevine2 tools
BakerHostetler2 tools
Bowmans2 tools
Homburger2 tools
Schoenherr2 tools
Whiteford2 tools
KMSC Law LLP2 tools
DLA Piper1 tool
Questions about AI in Legal & Compliance
What is the most used AI tool in Legal & Compliance?
Harvey. 139 of the 204 Legal & Compliance companies on usedby use it (68%). Legora (45) and Claude (4) come next. See who uses Harvey.
Which Legal & Compliance companies use the most AI tools?
On usedby: Harvey (14 AI tools), Legora (14 AI tools), and Thomson Reuters (10 AI tools).
Which Legal AI tool do Legal & Compliance companies use?
Harvey, used by 139 of the 204 Legal & Compliance companies on usedby. Legora is next, with 45.
Which Foundation Models (LLMs) tool do Legal & Compliance companies use?
Claude, used by 4 of the 204 Legal & Compliance companies on usedby. Cohere is next, with 1.
How does usedby count AI use in Legal & Compliance?
Each line comes from a public page that names the company: a vendor's customer page, a published case study, a press release or a job post, saved with a dated capture and checked again on each run. usedby lists a company because such a page exists, so the shares on this page describe the Legal & Compliance companies on usedby, not the whole industry.