Legal AI: the tools companies use

AI for legal research, contract drafting and review, and law firm casework.

654 companies on usedby use at least one of the 15 tools in this category with a public customer. Harvey leads with 235 companies. Then come Legora (111) and Ironclad (58). 26 companies run two of these tools or more. The most common pair is Legora with Harvey (9 companies).Latest check Oct 8, 2026: 647 of 683 public lines checked. Counts are of companies on usedby, not of the whole market: we list a company when a public page shows its AI tools.

654

companies on usedby use a tool of this category

Latest check Oct 8, 2026: 647 of 683 public lines checked

Which tool is used most

Companies per tool. A company using two tools counts for both.

Harvey235
Legora111
Ironclad58
LegalOn40
SpotDraft35
Luminance29
9 other tools175

Counts include job-post signals, drawn apart on each tool page.

Ranked by customers

Companies with a public line for each tool. Job-post signals count and are drawn apart in the proof bar.

Legal AI tools ranked by companies on usedby
#	Tool	Customers
1	Harvey	235
2	Legora	111
3	Ironclad	58
4	LegalOn	40
5	SpotDraft	35
6	Luminance	29
7	Spellbook	27
8	Ivo	25
9	Sirion	24
9	Supio	24
11	EvenUp	21
12	Eudia	16
13	Filevine	15
14	Eve	14
15	DeepJudge	9

26 companies run two of these tools or more. The most common pair is Legora with Harvey, at 9 companies.

Harvey235 customers

Harvey is used by 235 companies on usedby, 21 confirmed by a case study, a named quote or a press release. Named customers include Procter & Gamble, Bayer, and PWC. Who uses Harvey, Harvey vs Legora

Customer page: harvey.ai. Latest check of 204 of 235 lines: Oct 5, 2026.

Legora111 customers

Legora is used by 111 companies on usedby, 29 confirmed by a case study, a named quote or a press release. Named customers include Deloitte, Heineken, and S&P Global. Who uses Legora, Harvey vs Legora

Customer page: legora.com. Latest check of 111 of 111 lines: Oct 5, 2026.

Ironclad58 customers

Ironclad is used by 58 companies on usedby, 33 confirmed by a case study, a named quote or a press release. Named customers include L'Oréal, Mastercard, and OpenAI. Who uses Ironclad, Ironclad vs Ivo

Customer page: ironcladapp.com. Latest check of 53 of 58 lines: Oct 7, 2026.

LegalOn40 customers

LegalOn is used by 40 companies on usedby, 13 confirmed by a case study, a named quote or a press release. Named customers include Astrophysics, CPG Beyond, and Daiso. Who uses LegalOn

Customer page: legalontech.com. Latest check of 40 of 40 lines: Oct 8, 2026.

Newest customers

Companies first listed by a tool of this category in the last 90 days.

Sep 2 – Oct 1

Lockheed MartinStarted

Harvey

Most compared

Side-by-side pages with the companies behind each tool.

Questions about Legal AI

Answers drawn from usedby data.

What is the most used tool in Legal AI?

Harvey, used by 235 of the 654 companies on usedby in this category. Then come Legora (111) and Ironclad (58). Who uses Harvey.

Do more companies use Harvey or Legora?

Harvey: 235 companies on usedby, against 111 for Legora. 9 companies use both, counting confirmed and observed lines only.

Do companies use several tools in Legal AI?

Yes: 26 of the 654 companies on usedby in this category run two or more. The most common pair is Legora with Harvey (9 companies).

How does usedby rank these tools?

By the number of companies with a public line for each tool, read from dated captures of vendor customer pages, case studies, press releases and job posts. Job-post signals count in the totals and are shown apart. usedby lists a company when a public page shows it, so these counts describe the companies on usedby, not the whole market.