Company lists · Data refreshed September 2026

Top 25 Discovery services companies based in the United States

Name: Discovery services 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 19, 2026 393 companies tracked

RevenueBase identified 393 discovery services companies headquartered in the United States as of September 2026 and tracks 11,310 professional contacts across them, including 4,562 with verified work emails. Houston is the largest hub.

This list covers discovery services 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 19, 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 19, 2026 86% judged on-target in blind review

393Companies

11,310Contacts tracked

4,562Verified emails

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The 25 largest discovery services companies based in the United States

Ranked by team size

Top 25 of 393 discovery services companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to discovery services 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	Consilio LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 19, 2026	1,001-5,000	3,406 contacts →
	Indirect 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 19, 2026
2	Kldiscovery	Indirect evidence	Eden Prairie, MN, United StatesHQ checked Sep 19, 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 19, 2026
3	LMKR	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	501-1,000	777 contacts →
	Indirect evidence “Founded in 1994 and built on a strong geoscience and data management footprint, LMKR has evolved into a premier technology company expanding its reach to Clean Energy…” Source: RevenueBase Database · checked Sep 19, 2026
4	Pioneer Energy Services	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	770 contacts →
	Indirect evidence “Pioneer Energy Services is now Patterson-UTI” Source: RevenueBase Database · checked Sep 19, 2026
5	Global Geophysical Services	Indirect evidence	Missouri City, TX, United StatesHQ checked Sep 19, 2026	201-500	396 contacts →
	Indirect evidence “GGS provides an integrated suite of Geoscience solutions to the global oil and gas industry including high-resolution RG-3D Reservoir Grade® seismic data acquisition, Multi Client…” Source: RevenueBase Database · checked Sep 19, 2026
6	P&c Recruiting HR	Indirect evidence	North America, United StatesHQ checked Sep 19, 2026	n/a	282 contacts →
	Indirect evidence “People solutions in mining, green energy and related industrial sectors - executive and technical engineering/professional recruiting and human resources services throughout the…” Source: RevenueBase Database · checked Sep 19, 2026
7	Degolyer And Macnaughton	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 19, 2026	201-500	268 contacts →
	Indirect evidence “Reserves assessments and appraisals • Prospective resources assessments • Unconventional resources assessments • Contingent resources assessments • Reservoir simulation •…” Source: RevenueBase Database · checked Sep 19, 2026
8	Dauntless Discovery	Strong evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	501-1,000	192 contacts →
	Strong evidence “Dauntless Discovery provides law firm quality eDiscovery services at competitive pricing.” Source: RevenueBase Database · checked Sep 19, 2026
9	TCDI	Indirect evidence	Greensboro, NC, United StatesHQ checked Sep 19, 2026	51-200	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 19, 2026
10	Repario	Indirect evidence	Overland Park, KS, United StatesHQ checked Sep 19, 2026	51-200	138 contacts →
	Indirect evidence “Repario is an agile legal services company that synchronizes human intellect and modern technologies to deliver integrated eDiscovery, IaaS, Managed Review and expert Forensic…” Source: RevenueBase Database · checked Sep 19, 2026
11	Complete Discovery Source	Strong evidence	NY, United StatesHQ checked Sep 19, 2026	51-200	136 contacts →
	Strong evidence “The most demanding law firms, corporations, and government agencies turn to CDS for a full range of electronic discovery and legal data management solutions including data…” Source: RevenueBase Database · checked Sep 19, 2026
12	Impac Exploration Services	Indirect evidence	Weatherford, OK, United StatesHQ checked Sep 19, 2026	51-200	98 contacts →
	Indirect evidence “Impac Exploration Services, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
13	Bluestar	Strong evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	51-200	81 contacts →
	Strong evidence “BlueStar Case Solutions is a premier litigation-support and e-discovery partner trusted by law firms, corporate legal departments, and government agencies to manage high-stakes…” Source: RevenueBase Database · checked Sep 19, 2026
14	Rangefront Mining Services	Indirect evidence	Elko, NV, United StatesHQ checked Sep 19, 2026	51-200	79 contacts →
	Indirect evidence “Rangefront exists to serve your mining or exploration project in the most efficient, advanced, and forward-thinking way.” Source: RevenueBase Database · checked Sep 19, 2026
15	MES Mining	Indirect evidence	Sandy, UT, United StatesHQ checked Sep 19, 2026	11-50	77 contacts →
	Indirect evidence “Mining & Environmental Services LLC provides specialized technical expertise, at a high level of excellence, to support our Clients throughout the full process cycle of…” Source: RevenueBase Database · checked Sep 19, 2026
16	Collier Consulting & Collier Geophysics	Indirect evidence	Stephenville, TX, United StatesHQ checked Sep 19, 2026	51-200	71 contacts →
	Indirect evidence “Geoscience • Engineering • Geophysics Collier Consulting, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
17	John T. Boyd Company	Indirect evidence	Canonsburg, PA, United StatesHQ checked Sep 19, 2026	51-200	65 contacts →
	Indirect evidence “Since 1943, BOYD mining consultants have provided advisory services to a diverse mix of domestic and international clientele: mining companies, investors, financial institutions…” Source: RevenueBase Database · checked Sep 19, 2026
18	Georgejon	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	51-200	59 contacts →
	Indirect evidence “We're your eDiscovery data experts with one goal which is informed by fifteen-plus years of real-world experience: to plan, design, manage, support, and secure the best-performing…” Source: RevenueBase Database · checked Sep 19, 2026
19	Terra Guidance, LLC	Indirect evidence	Englewood, CO, United StatesHQ checked Sep 19, 2026	51-200	59 contacts →
	Indirect evidence “Terra Guidance provides geological analysis remotely, onsite, and in-house.” Source: RevenueBase Database · checked Sep 19, 2026
20	Paragon Geophysical Services, INC	Indirect evidence	Wichita, KS, United StatesHQ checked Sep 19, 2026	51-200	59 contacts →
	Indirect evidence “Headquartered in Wichita, Kansas, and founded in 1993, Paragon Geophysical Services, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
21	Pattison Company, LLC	Indirect evidence	Garnavillo, IA, United StatesHQ checked Sep 19, 2026	51-200	58 contacts →
	Indirect evidence “Pattison Company, LLC is a Mining company located at 23656 Great River Rd, Garnavillo, IA, 52049, United States.” Source: RevenueBase Database · checked Sep 19, 2026
22	Call & Nicholas	Indirect evidence	Tucson, AZ, United StatesHQ checked Sep 19, 2026	51-200	52 contacts →
	Indirect evidence “CALL & NICHOLAS (CNI) is an international mining consulting firm that specializes in geological engineering, geotechnical engineering, and hydrogeology.” Source: RevenueBase Database · checked Sep 19, 2026
23	Complete Legal	Strong evidence	Mission, KS, United StatesHQ checked Sep 19, 2026	51-200	49 contacts →
	Strong evidence “Complete Legal is a strategic, enterprise-capable litigation support partner helping law firms and legal teams manage complex discovery and data challenges with confidence.” Source: RevenueBase Database · checked Sep 19, 2026
24	Riner Engineering, Inc., A UES Company	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	51-200	47 contacts →
	Indirect evidence “Riner Engineering became part of the UES family of companies in June 2023, combining our local expertise with UES’s nationwide presence and resources.” Source: RevenueBase Database · checked Sep 19, 2026
25	Field GEO Services, INC	Indirect evidence	Grand Junction, CO, United StatesHQ checked Sep 19, 2026	51-200	47 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 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 services 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 discovery services companies.
Partial evidence: Its own public description names part of discovery services companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name discovery services 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 393 discovery services companies based in the United States

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Discovery services companies based in the United States at a glance

As of Sep 19, 2026

40.3%Verified-email coverage

28.8Average contacts per company

1-10Median size (employees)

8.7%Largest-city concentration · Houston

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

205

11-50

126

51-200

201-500

501-1,000

1,001-5,000

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 393 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 discovery services 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 “discovery services 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 discovery services 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 discovery services 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, 4,562 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 19, 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 services companies by metro

Discovery services companies in Houston34

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 services 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 discovery services companies are there based in the United States?

RevenueBase identified 393 discovery services 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?

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

Which city has the most discovery services companies?

Houston leads with 34 headquartered companies, followed by Denver (14) and Dallas (10).

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 4,562 verified decision-maker contacts tracked across these 393 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 19, 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.