Company lists · Data refreshed September 2026
Top 25 Legal research software companies based in the United States
RevenueBase identified 66 legal research software companies headquartered in the United States as of September 2026 and tracks 874 professional contacts across them, including 303 with verified work emails and 379 with mobile numbers. San Francisco is the largest hub.
This list covers legal research 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.
The 25 largest legal research software companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 152 | ||||
“Law Bulletin Media is a digital content provider delivering essential information and services for legal markets.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 2 | JustiaIndirect evidence | 149 | |||
“Justia works on free law projects, collecting and distributing millions of documents to the Internet community.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 3 | 145 | ||||
“Bloomberg Law® is an integrated legal research and business intelligence solution, combining trusted news and analysis with cutting-edge technology to provide legal professionals…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 4 | 36 | ||||
“Tabs3 Software provides a reliable, easy-to-use, seamlessly integrated suite of software products for law firms and legal professionals, ranging from billing to practice…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 5 | 34 | ||||
“Meet Casetext, the leaders of innovation in legal AI since 2013 and the developers of CoCounsel, the world's first AI legal assistant.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 6 | 27 | ||||
“Paxton is transforming how legal professionals work through a refined, purpose-built artificial intelligence platform.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 7 | 27 | ||||
“BEC Legal Systems’ solutions are specifically designed for law firms and corporate legal departments who rely on Microsoft Office.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 8 | Social LAW LibraryStrong evidence | 18 | |||
“Founded in 1803, the Social Law Library is a member-managed, dues-supported legal research institution.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 9 | 18 | ||||
“Fastcase, by vLex, is the premiere American provider of online legal research.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 10 | KLIPPartial evidence | 17 | |||
“Empowering attorneys to maximize efficiency by transforming case knowledge into actionable insights-enabling faster case resolutions, higher ROI, and unmatched legal impact.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 11 | 16 | ||||
“All in one suite for legal research and writing.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 12 | 15 | ||||
“CourtAlert is the market leader for providing court data to large law firms and legal organizations in New York and across the country.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 13 | 11 | ||||
“Easysoft Legal Software is the most trusted, affordable, and auto-calculating solution for attorneys and legal professionals in real estate and family law practices.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 14 | MidpageStrong evidence | 10 | |||
“Everything you'd expect in a legal research platform…and more.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 15 | 9 | ||||
“At AnyLaw, our mission is to transform legal research by providing an accessible, top-tier solution for legal professionals.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 16 | LIT SoftwarePartial evidence | 7 | |||
“Since 2010, LIT SOFTWARE has been changing law practice for the better with efficient and reliable apps that harness the best in mobile technology.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 17 | Fortuna-InsightsStrong evidence | 6 | |||
“Cutting-edge legal research powered by generative AI.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 18 | 5 | ||||
“A Next-Gen Law Database for Solo & Small Firm Attorneys Meet Decisis, a next-generation legal research solution for solo attorneys and small law firms.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 19 | Troy TechnologyStrong evidence | 5 | |||
“TROY AI, the revolutionary Legal AI that redefines what you thought was possible in legal research and case management.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 | ||||
“Premonition.ai is an Artificial Intelligence system that mines Big Data to find out which Attorneys win before which Judges.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 21 | West A Thomson BusinessPartial evidence | 4 | |||
“Discover law products including WestlawNext, law books, practice management solutions and more at Legal Solutions from Thomson Reuters.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 22 | JudicataPartial evidence | 4 | |||
“Mapping the legal genome to help you better understand the law.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 | ||||
“Transform your legal research experience with our AI-driven access to millions of legal decisions from federal and state courts.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 | ||||
“Atlas AI empowers your legal team to analyze complex agreements quickly, create accurate legal documents effortlessly, and streamline research.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 25 | TrialsmithIndirect evidence | 3 | |||
“The Plaintiff is Our Exclusive Focus.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 66 legal research software companies based in the United States
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Legal research software companies based in the United States at a glance
As of Sep 4, 2026Companies by employee count
Verified emails by last verification
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 research 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 research 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 research 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, 303 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.
Frequently asked
How many legal research software companies are there based in the United States?
RevenueBase identified 66 legal research 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?
LAW Bulletin Media, headquartered in North Barrington, tops this list with the largest team on record.
Which city has the most legal research software companies?
San Francisco leads with 6 headquartered companies, followed by Los Angeles (5) and New York (5).
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 303 verified decision-maker contacts tracked across these 66 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.
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