Company lists · Data refreshed September 2026

Top 25 Discovery consulting firms worldwide

Name: Discovery consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 3,030 companies tracked

RevenueBase identified 3,030 discovery consulting firms worldwide as of September 2026 and tracks 33,949 professional contacts across them, including 12,671 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers discovery consulting firms worldwide, 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. Country and city lists for discovery consulting firms follow the table.

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

3,030Companies

33,949Contacts tracked

12,671Verified emails

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The 25 largest discovery consulting firms worldwide

Ranked by team size

Top 25 of 3,030 discovery consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to discovery consulting firms: 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	Consilio LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,406 contacts →
	Partial 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 28, 2026
2	Monitor Deloitte	Indirect evidence	United StatesHQ checked Sep 28, 2026	5,001-10,000	3,116 contacts →
	Indirect evidence “To navigate the future with confidence, organizations need to make and act upon the right choices: clear, timely and inspirational choices that deliver growth in a dynamic…” Source: RevenueBase Database · checked Sep 28, 2026
3	Abylsen	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1,001-5,000	1,577 contacts →
	Indirect evidence “In a world that too often follows currents, Abylsen has been opening itself up to new directions.” Source: RevenueBase Database · checked Sep 28, 2026
4	Cornerstone Research	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	501-1,000	1,248 contacts →
	Indirect evidence “At Cornerstone Research, we attribute our success to a unique combination of resources: a creative and energetic staff, cutting-edge technology and research, and our work with…” Source: RevenueBase Database · checked Sep 28, 2026
5	Kldiscovery	Indirect evidence	Eden Prairie, MN, United StatesHQ checked Sep 28, 2026	1,001-5,000	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 28, 2026
6	The Vertex Companies LLC	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	765 contacts →
	Partial evidence “The Vertex Companies, LLC is a global consulting firm that provides strategic advisory, project management, and dispute resolution services for organizations that face complex…” Source: RevenueBase Database · checked Sep 28, 2026
7	Everlaw	Partial evidence	Oakland, CA, United StatesHQ checked Sep 28, 2026	501-1,000	538 contacts →
	Partial 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 28, 2026
8	Magna Legal Services	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	501-1,000	500 contacts →
	Indirect evidence “Magna Legal Services provides end-to-end legal support services to law firms, corporations and governmental agencies throughout the nation.” Source: RevenueBase Database · checked Sep 28, 2026
9	Special Counsel	Partial evidence	Jacksonville, FL, United StatesHQ checked Sep 28, 2026	201-500	443 contacts →
	Partial evidence “At Special Counsel, we are a leading provider of legal consulting, attorney recruiting, legal talent, legal technology and eDiscovery solutions, with a growing international…” Source: RevenueBase Database · checked Sep 28, 2026
10	Keystone	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	423 contacts →
	Partial evidence “Keystone is an innovative strategy, economics, and technology consulting firm delivering transformative ideas and novel solutions to global brands and law firms on leading-edge…” Source: RevenueBase Database · checked Sep 28, 2026
11	IMS Legal Strategies	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	201-500	367 contacts →
	Indirect evidence “IMS Legal Strategies is a trusted partner to law firms and corporations worldwide, providing the expertise and technology needed to elevate case strategies and overcome…” Source: RevenueBase Database · checked Sep 28, 2026
12	Iota Analytics	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	347 contacts →
	Partial evidence “At Iota Analytics we’re bringing together the very best of tech and consulting to serve law firms, legal counsels and intellectual property managers.” Source: RevenueBase Database · checked Sep 28, 2026
13	ARRAY	Indirect evidence	Austin, PA, United StatesHQ checked Sep 28, 2026	51-200	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 28, 2026
14	Conduent Legal And Compliance Solutions	Indirect evidence	United StatesHQ checked Sep 28, 2026	10001+	262 contacts →
	Indirect evidence “Conduent is the world's largest pure-play business process services leader.” Source: RevenueBase Database · checked Sep 28, 2026
15	The MCS Group, INC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	501-1,000	237 contacts →
	Indirect evidence “The MCS Group, Inc, a certified Women’s Business Enterprise, is a nationally-recognized provider of outsourcing services.” Source: RevenueBase Database · checked Sep 28, 2026
16	Resolution Economics	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	201-500	232 contacts →
	Indirect evidence “Founded in 1998, Resolution Economics provides sophisticated economic, statistical, and financial analyses, forensic investigations, forensic technology, dispute advisory, expert…” Source: RevenueBase Database · checked Sep 28, 2026
17	LCG	Partial evidence	Lisbon, PortugalHQ checked Sep 28, 2026	201-500	230 contacts →
	Partial evidence “LCG provides consulting services, using their multidisciplinary skills in the areas of strategic and operational management, information systems, management support, business…” Source: RevenueBase Database · checked Sep 28, 2026
18	Prosearch	Partial evidence	Los Angeles, United StatesHQ checked Sep 28, 2026	201-500	222 contacts →
	Partial evidence “ProSearch is a leading provider of comprehensive discovery solutions to corporate legal departments and law firms, empowering them to better manage their portfolio of matters for…” Source: RevenueBase Database · checked Sep 28, 2026
19	Lineal	Partial evidence	North Kansas City, United StatesHQ checked Sep 28, 2026	201-500	218 contacts →
	Partial evidence “Data-Focused Discovery Lineal is an innovative eDiscovery and legal technology solutions company and empowers law firms and corporations with modern data management and review…” Source: RevenueBase Database · checked Sep 28, 2026
20	Native	Indirect evidence	Mumbai, IndiaHQ checked Sep 28, 2026	51-200	209 contacts →
	Indirect evidence “Native connects people and organisations so that they grow effortlessly.” Source: RevenueBase Database · checked Sep 28, 2026
21	Esquire	Indirect evidence	United StatesHQ checked Sep 28, 2026	501-1,000	196 contacts →
	Indirect evidence “Esquire, an Alexander Gallo Holdings Company, offers a service area for each stage of litigation - staffed with specialists dedicated to their field.” Source: RevenueBase Database · checked Sep 28, 2026
22	Dauntless Discovery	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 28, 2026	501-1,000	192 contacts →
	Partial evidence “Dauntless Discovery provides law firm quality eDiscovery services at competitive pricing.” Source: RevenueBase Database · checked Sep 28, 2026
23	The Reliable Companies	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	201-500	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 28, 2026
24	The Marker Group	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	189 contacts →
	Indirect evidence “Founded in 1985, the Marker Group is the nation’s most trusted name in record collection, medical review, data analysis, and many other litigation support services.” Source: RevenueBase Database · checked Sep 28, 2026
25	Nits Solutions	Indirect evidence	Novi, MI, United StatesHQ checked Sep 28, 2026	51-200	182 contacts →
	Indirect evidence “TRANSFORMING INFORMATION INTO INTELLIGENCE NITS Solutions unlocks what you already know.” 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: discovery consulting firms. 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 discovery consulting firms.
Partial evidence: Its own public description names part of discovery consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name discovery consulting firms. 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 3,030 discovery consulting firms worldwide

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Discovery consulting firms worldwide at a glance

As of Sep 28, 2026

37.3%Verified-email coverage

11.2Average contacts per company

1-10Median size (employees)

2.5%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

2,149

11-50

632

51-200

170

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 discovery consulting firms, 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.
Coverage: Every country. Country and city lists for discovery consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “discovery consulting firms”. 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 discovery consulting firms), 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 discovery consulting firms, and records with no verified work email.
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, 12,671 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.

Discovery consulting firms by location

23 lists · largest first

Every Discovery consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 discovery consulting firms, 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 discovery consulting firms are there worldwide?

RevenueBase identified 3,030 discovery consulting firms worldwide 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?

Consilio LLC, headquartered in Washington, tops this list with the largest team on record.

Which country has the most discovery consulting firms?

The United States leads with 1,250 companies, followed by the United Kingdom (135) and India (105). Every discovery consulting firms list by country and city is linked on this page.

Which city has the most discovery consulting firms?

New York leads with 75 headquartered companies, followed by London (70) and Los Angeles (39).

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 12,671 verified decision-maker contacts tracked across these 3,030 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.