Company lists · Data refreshed September 2026
Top 25 Document review systems based in the United States
RevenueBase identified 413 document review systems headquartered in the United States as of September 2026 and tracks 30,752 professional contacts across them, including 13,883 with verified work emails. New York is the largest hub.
This list covers document review systems 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 21, 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.
The 25 largest document review systems based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,335 contacts → | ||||
Indirect evidence “Epiq, a global technology-enabled services leader to the legal industry and corporations, takes on large-scale, increasingly complex tasks for corporate counsel, law firms, and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,406 contacts → | ||||
Strong evidence “Consilio stands as the global leader in eDiscovery, document review, flexible legal talent, and legal advisory & transformation consulting services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,098 contacts → | ||||
Indirect evidence “UnitedLex is the preeminent business partner for legal delivering solutions that achieve value and drive growth for corporate legal departments and law firms in the areas of…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,709 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,705 contacts → | ||||
Indirect evidence “Mitratech is a trusted, global technology partner empowering corporate legal, risk & compliance, and HR professionals to maximize productivity, control expense, and mitigate risk…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,198 contacts → | ||||
Indirect evidence “KLDiscovery provides technology-enabled services and software to help law firms, corporations, government agencies and consumers solve complex data challenges.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,043 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,043 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 900 contacts → | ||||
Indirect evidence “Litera has been at the forefront of legal technology for 25+ years.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 873 contacts → | ||||
Indirect evidence “Morae Global Corporation ("Morae") is trusted around the world for the delivery of digital and business solutions for a constantly changing legal industry.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 538 contacts → | ||||
Indirect evidence “Everlaw keeps legal teams one step ahead of the growing demands of ediscovery by transforming how they discover the truth.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 495 contacts → | ||||
Indirect evidence “The global market leader for transformative enterprise legal management software.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 492 contacts → | ||||
Indirect evidence “Reveal helps legal professionals solve complex discovery problems.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 402 contacts → | ||||
Indirect evidence “Bringing visibility, value, and simplicity to your everyday operations.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 293 contacts → | ||||
Indirect evidence “Array is a leading end-to-end eDiscovery and litigation technology provider, supporting legal teams globally with 30+ years of proven expertise.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 246 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 236 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 209 contacts → | ||||
Indirect evidence “LegalEase Solutions, also referred to as LegalEase, is a US-based AI powered legal solutions provider helping legal, compliance, and business teams manage complex, high-volume…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 194 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 192 contacts → | ||||
Indirect evidence “Dauntless Discovery provides law firm quality eDiscovery services at competitive pricing.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 190 contacts → | ||||
Indirect evidence “For over 30 years, Reliable has been the trusted and cost-effective services provider to leading law firms, corporations, and other businesses throughout the United States.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 155 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 150 contacts → | ||||
Partial evidence “Achieve more, every day, by shifting a variety of critical business functions – including litigation support, eDiscovery, digital forensics, paper discovery, managed review and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 143 contacts → | ||||
Partial evidence “ABOUT US Hire Counsel, a Purpose Legal company, provides specialized legal staffing and managed review services for law firms, corporations, and government agencies.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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: document review systems. 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 document review systems.
- Partial evidence
- Its own public description names part of document review systems, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name document review systems. 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 413 document review systems based in the United States
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Document review systems based in the United States at a glance
As of Sep 21, 2026Companies by employee count
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 413 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 document review systems, 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 “document review systems”. 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 document review systems), 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 document review systems, 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, 13,883 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 21, 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.
Document review systems by metro
- Document review systems in New York34
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 document review systems, 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 document review systems are there based in the United States?
RevenueBase identified 413 document review systems 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?
EPIQ, headquartered in New York, tops this list with the largest team on record.
Which city has the most document review systems?
New York leads with 34 headquartered companies, followed by Chicago (20) and Los Angeles (19).
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 13,883 verified decision-maker contacts tracked across these 413 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 21, 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.
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