Company lists · Data refreshed September 2026

Top 25 Legal collaboration software companies based in the United States

Name: Legal collaboration software 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 4, 2026 466 companies tracked

RevenueBase identified 466 legal collaboration software companies headquartered in the United States as of September 2026 and tracks 12,635 professional contacts across them, including 5,040 with verified work emails and 4,229 with mobile numbers. New York is the largest hub.

This list covers legal collaboration software 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

466Companies

12,635Contacts tracked

5,040Verified emails

4,229Mobile numbers

Unlock all 466 companies Free signup · no credit card · 500 free credits

The 25 largest legal collaboration software companies based in the United States

Ranked by team size

Top 25 of 466 legal collaboration software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names legal collaboration software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	LegalzoomPartial evidence	Mountain View, CA, United StatesHQ checked Sep 4, 2026	501-1,000	1,390
	“Since pioneering legaltech in 2001, we have helped millions of people navigate the complexities of the legal system.” Source: company website · checked Sep 4, 2026
2	QuislexPartial evidence	New York, IL, United StatesHQ checked Sep 4, 2026	1,001-5,000	1,040
	“QuisLex is an award-winning alternative legal services provider (ALSP) helping corporate legal departments and law firms manage risk, control cost, and drive efficiency across…” Source: company website · checked Sep 4, 2026
3	LiteraPartial evidence	Chicago, IL, United StatesHQ checked Sep 4, 2026	501-1,000	892
	“Litera has been at the forefront of legal technology for 25+ years.” Source: company website · checked Sep 4, 2026
4	FilevinePartial evidence	Salt Lake City, IL, United StatesHQ checked Sep 4, 2026	501-1,000	823
	“Filevine is changing the way legal work gets done for law practitioners and their clients.” Source: company website · checked Sep 4, 2026
5	Wolters Kluwer Legal & Regulatory USPartial evidence	New York, NY, United StatesHQ checked Sep 4, 2026	10001+	499
	“Wolters Kluwer Legal & Regulatory U.S.” Source: company website · checked Sep 4, 2026
6	FOXITPartial evidence	Fremont, CA, United StatesHQ checked Sep 4, 2026	501-1,000	480
	“Foxit is a software leader delivering a fast, secure, AI-powered document suite that brings greater control, speed, and value to the way people work with documents.” Source: company website · checked Sep 4, 2026
7	NeostellaStrong evidence	Milwaukee, IL, United StatesHQ checked Sep 4, 2026	201-500	371
	“Neostella builds enterprise case management software for modern legal teams who need clarity, control, and connection across every part of their work.” Source: company website · checked Sep 4, 2026
8	Purpose LegalPartial evidence	Dallas, TX, United StatesHQ checked Sep 4, 2026	201-500	236
	“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: company website · checked Sep 4, 2026
9	ActionstepIndirect evidence	Denver, CO, United StatesHQ checked Sep 4, 2026	201-500	211
	“Actionstep is the preferred law firm operations platform built to help modern law firms run smarter, scale faster, and stay in control.” Source: company website · checked Sep 4, 2026
10	Legalease SolutionsPartial evidence	Plymouth, MI, United StatesHQ checked Sep 4, 2026	201-500	205
	“LegalEase Solutions is a legal solutions provider with over 20 years of expertise in offering corporate legal departments innovative technology-enabled services.” Source: company website · checked Sep 4, 2026
11	Surepoint TechnologiesPartial evidence	Austin, TX, United StatesHQ checked Sep 4, 2026	51-200	195
	“For more than four decades, SurePoint® Technologies has empowered law firms to thrive in a constantly evolving legal landscape.” Source: company website · checked Sep 4, 2026
12	LitifyPartial evidence	New York, LA, United StatesHQ checked Sep 4, 2026	201-500	178
	“Unleash your legal team’s full potential.” Source: company website · checked Sep 4, 2026
13	TCDIPartial evidence	Greensboro, OH, United StatesHQ checked Sep 4, 2026	51-200	154
	“For over 36 years, Technology Concepts & Design, Inc.(TCDI) has been a trusted partner for law firms and corporate legal teams, providing a comprehensive suite of eDiscovery…” Source: company website · checked Sep 4, 2026
14	Assembly SoftwarePartial evidence	Coral Gables, FL, United StatesHQ checked Sep 4, 2026	51-200	145
	“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: company website · checked Sep 4, 2026
15	Infotrack USIndirect evidence	New York, NY, United StatesHQ checked Sep 4, 2026	201-500	137
	“Litigation is complicated.” Source: company website · checked Sep 4, 2026
16	PdffillerIndirect evidence	Brookline, MA, United StatesHQ checked Sep 4, 2026	501-1,000	133
	“pdfFiller is a comprehensive online document management platform that provides the services of an online editor, cloud storage platform, and a signature request manager all in one…” Source: company website · checked Sep 4, 2026
17	CODAIndirect evidence	San Francisco, WA, United StatesHQ checked Sep 4, 2026	201-500	131
	“Coda started in 2014 with a simple observation: In a world full of pre-built tools and applications, why do documents and spreadsheets seem to run the world?” Source: company website · checked Sep 4, 2026
18	CenterbasePartial evidence	Dallas, TX, United StatesHQ checked Sep 4, 2026	51-200	124
	“Centerbase is the most customizable, cloud-based legal practice management solution that gives mid-sized firms the power to streamline their daily tasks with ease and efficiency.” Source: company website · checked Sep 4, 2026
19	ONE Legal An Infotrack CompanyIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	51-200	102
	“What do we do?” Source: company website · checked Sep 4, 2026
20	LexiconPartial evidence	Chesterfield, MO, United StatesHQ checked Sep 4, 2026	51-200	89
	“Lexicon is a legal services and technology provider with deep expertise in the legal industry.” Source: company website · checked Sep 4, 2026
21	CartigaPartial evidence	New York, NY, United StatesHQ checked Sep 4, 2026	51-200	87
	“As a pioneer in next-gen legal services, Cartiga is mapping the way to a better future with innovative solutions that help law firms and their clients navigate challenges, seize…” Source: company website · checked Sep 4, 2026
22	legal.ioPartial evidence	San Francisco, CA, United StatesHQ checked Sep 4, 2026	51-200	81
	“Legal.io is the all-in-one legal spend and hiring platform helping enterprise legal teams control costs and scale smarter.” Source: company website · checked Sep 4, 2026
23	ParadigmStrong evidence	New York, NY, United StatesHQ checked Sep 4, 2026	51-200	77
	“Paradigm offers a suite of legal software solutions that help lawyers manage, automate and grow their firms.” Source: company website · checked Sep 4, 2026
24	File & ServexpressIndirect evidence	Dallas, TX, United StatesHQ checked Sep 4, 2026	51-200	66
	“With over three decades of experience in the government tech industry, File & ServeXpress delivers trusted technology solutions that help courts, government agencies, and law…” Source: company website · checked Sep 4, 2026
25	GC AIPartial evidence	San Mateo, CA, United StatesHQ checked Sep 4, 2026	51-200	62
	“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: company website · checked Sep 4, 2026

Showing 25 of 466 legal collaboration software companies based in the United States

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Legal collaboration software companies based in the United States at a glance

As of Sep 4, 2026

1-10Median size (employees)

New YorkLargest hub · 36 HQs

4,229Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

237

11-50

160

51-200

201-500

501-1,000

1,001-5,000

10001+

Verified emails by last verification

0–30

31–60

441

61–90

2,762

90–180

1,808

180+

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 collaboration software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 collaboration software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among legal collaboration software 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 an evidence 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, 5,040 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 4, 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 collaboration software companies by metro

Legal collaboration software companies in New York36

Frequently asked

How many legal collaboration software companies are there based in the United States?

RevenueBase identified 466 legal collaboration software 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?

Legalzoom, headquartered in Mountain View, tops this list with the largest team on record.

Which city has the most legal collaboration software companies?

New York leads with 36 headquartered companies, followed by Chicago (19) and San Francisco (16).

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 5,040 verified decision-maker contacts tracked across these 466 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 4, 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 SmartSearch, 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.