Company lists · Data refreshed September 2026

Top 25 Legal AI platform companies based in the United States

Name: Legal AI platform companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 339 companies tracked

RevenueBase identified 339 legal AI platform companies headquartered in the United States as of September 2026 and tracks 20,494 professional contacts across them, including 8,548 with verified work emails. New York is the largest hub.

This list covers legal AI platform companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

339Companies

20,494Contacts tracked

8,548Verified emails

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The 25 largest legal AI platform companies based in the United States

Ranked by team size

Top 25 of 339 legal AI platform companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to legal AI platform companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Lexisnexis	Strong evidence	New York City, NY, United StatesHQ checked Sep 28, 2026	10001+	9,835 contacts →
	Strong evidence “LexisNexis is a leading innovator of private, secure, and authoritative Legal AI solutions that help legal and business professionals draft full documents with ease, make informed…” Source: RevenueBase Database · checked Sep 28, 2026
2	Relativity	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,709 contacts →
	Partial evidence “Relativity is a leading legal data intelligence company that builds technology to help users organize data, discover the truth, and act on it.” Source: RevenueBase Database · checked Sep 28, 2026
3	Lighthouse	Strong evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	501-1,000	1,043 contacts →
	Strong evidence “Lighthouse is a global leader in eDiscovery, digital forensics, AI-driven analytics, and legal intelligence solutions, empowering legal teams, corporate counsel, and global brands…” Source: RevenueBase Database · checked Sep 28, 2026
4	Litera	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	501-1,000	900 contacts →
	Partial evidence “Litera has been at the forefront of legal technology for 25+ years.” Source: RevenueBase Database · checked Sep 28, 2026
5	Harvey	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	501-1,000	826 contacts →
	Strong evidence “Harvey is domain-specific AI for legal and professional services.” Source: RevenueBase Database · checked Sep 28, 2026
6	DISCO	Indirect evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	501-1,000	712 contacts →
	Indirect evidence “DISCO is a litigation technology company that helps top law firms and corporations take on their biggest cases.” Source: RevenueBase Database · checked Sep 28, 2026
7	Evenup	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	501-1,000	707 contacts →
	Strong evidence “EvenUp is the leading proactive AI platform for personal injury law, the first of its kind, built on the largest personal injury dataset.” Source: RevenueBase Database · checked Sep 28, 2026
8	Linksquares	Strong evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	201-500	286 contacts →
	Strong evidence “LinkSquares is the leading AI-powered contract lifecycle management platform, trusted by more than 1,200 customers, including DraftKings, ProPharma, and TIME.” Source: RevenueBase Database · checked Sep 28, 2026
9	Knovos	Strong evidence	Tampa, FL, United StatesHQ checked Sep 28, 2026	201-500	246 contacts →
	Strong evidence “For 23 years, Knovos has dedicated its engineering resources to automate, integrate, and innovate AI-powered solutions for legal information management.” Source: RevenueBase Database · checked Sep 28, 2026
10	Purpose Legal	Strong evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	201-500	236 contacts →
	Strong evidence “ABOUT US Purpose Legal is an AI-first legal services company delivering integrated technology, review expertise, and specialized legal staffing for law firms, corporations, and…” Source: RevenueBase Database · checked Sep 28, 2026
11	Darrow AI	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	201 contacts →
	Partial evidence “The legal system is one of society's most important safeguards.” Source: RevenueBase Database · checked Sep 28, 2026
12	Cimplifi	Strong evidence	Pittsburgh, PA, United StatesHQ checked Sep 28, 2026	51-200	194 contacts →
	Strong evidence “Cimplifi is a leading legal services provider and AI orchestrator, delivering trusted, outcome-driven solutions across eDiscovery and contract analytics.” Source: RevenueBase Database · checked Sep 28, 2026
13	Litify	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	175 contacts →
	Partial evidence “Unleash your legal team’s full potential.” Source: RevenueBase Database · checked Sep 28, 2026
14	SUPIO	Strong evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	51-200	155 contacts →
	Strong evidence “Supio is the leading AI platform for plaintiff law, purpose-built to help firms fight more powerfully for the individuals and families who need them most.” Source: RevenueBase Database · checked Sep 28, 2026
15	Legalon	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	501-1,000	154 contacts →
	Strong evidence “LegalOn is a global leader in AI for in-house legal teams.” Source: RevenueBase Database · checked Sep 28, 2026
16	Norm AI	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	151 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
17	Assembly Software	Partial evidence	Coral Gables, FL, United StatesHQ checked Sep 28, 2026	51-200	145 contacts →
	Partial evidence “Assembly Software is redefining how plaintiff law firms run their practice: combining AI-powered case management, workflow automation, and 40+ years of expertise to help firms…” Source: RevenueBase Database · checked Sep 28, 2026
18	Persuit	Partial evidence	New York, United StatesHQ checked Sep 28, 2026	51-200	122 contacts →
	Partial evidence “PERSUIT is redefining how legal teams select and manage outside counsel by mobilizing value-based pricing models from matter intake to invoice review and payment.” Source: RevenueBase Database · checked Sep 28, 2026
19	Recommind NOW Opentext	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	n/a	73 contacts →
	Indirect evidence “Recommind was acquired by OpenText in July 2016.” Source: RevenueBase Database · checked Sep 28, 2026
20	GC AI	Strong evidence	San Mateo, CA, United StatesHQ checked Sep 28, 2026	51-200	68 contacts →
	Strong evidence “GC AI is the legal AI platform built for in-house teams that solves the workflows in-house lawyers and legal professionals face every day.” Source: RevenueBase Database · checked Sep 28, 2026
21	Draftwise	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	60 contacts →
	Indirect evidence “Draftwise helps firms produce higher quality contracts in less time by empowering every attorney with instant access to the firm’s collective knowledge.” Source: RevenueBase Database · checked Sep 28, 2026
22	Legalsifter	Strong evidence	Pittsburgh, PA, United StatesHQ checked Sep 28, 2026	51-200	54 contacts →
	Strong evidence “LegalSifter is a legal AI technology and services company that helps organizations review, manage, and optimize contracts faster, more accurately, and at lower cost.” Source: RevenueBase Database · checked Sep 28, 2026
23	Servient, INC	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	53 contacts →
	Strong evidence “Servient’s AI platform enhances legal workflows by leveraging Generative AI, enabling legal professionals to focus on their core competencies while accelerating and improving…” Source: RevenueBase Database · checked Sep 28, 2026
24	Neota Logic	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	47 contacts →
	Strong evidence “Neota Logic provides the AI governance layer for legal.” Source: RevenueBase Database · checked Sep 28, 2026
25	Legalmation	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	11-50	45 contacts →
	Partial evidence “LegalMation leverages the latest artificial intelligence systems including GPT-4 to help corporate legal departments and law firms drive efficiency with straightforward and easily…” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: legal AI platform companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names legal AI platform companies.
Partial evidence: Its own public description names part of legal AI platform companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name legal AI platform companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 339 legal AI platform companies based in the United States

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Legal AI platform companies based in the United States at a glance

As of Sep 28, 2026

41.7%Verified-email coverage

60.5Average contacts per company

1-10Median size (employees)

13.0%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

207

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 339 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among legal AI platform companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “legal AI platform companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names legal AI platform companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among legal AI platform companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 8,548 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Legal AI platform companies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names legal AI platform companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many legal AI platform companies are there based in the United States?

RevenueBase identified 339 legal AI platform companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Lexisnexis, headquartered in New York City, tops this list with the largest team on record.

Which city has the most legal AI platform companies?

New York leads with 44 headquartered companies, followed by San Francisco (36) and Chicago (12).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 8,548 verified decision-maker contacts tracked across these 339 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.