Company lists · Data refreshed November 2026

Top 25 Environmental drilling contractors based in the United States

RevenueBase identified 1,443 company matches for environmental drilling contractors associated with the United States as of November 2026 and tracks 23,255 professional contacts across them, including 6,748 with verified work emails. Houston is the largest hub.

This list covers company matches for environmental drilling contractors associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
1,443Companies
23,255Contacts tracked
6,748Verified emails
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The 25 largest environmental drilling contractors based in the United States

Ranked by team size
Top 25 of 1,443 company matches for environmental drilling contractors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchIrvine, CA, United StatesHQ recorded Nov 6, 2026n/a1,371 contacts →

Exact match

“Training and Development Solutions”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchOklahoma City, OK, United StatesHQ recorded Nov 6, 20261,001-5,000498 contacts →

Exact match

“As the largest privately-held domestic land drilling contractor in the United States, Cactus provides competent, motivated personnel utilizing premium equipment to meet and exceed…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWestmont, IL, United StatesHQ recorded Nov 6, 2026501-1,000495 contacts →

Exact match

“ENTACT is the partner of choice in solving our customer's most complex environmental remediation and geotechnical infrastructure challenges.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500354 contacts →

Exact match

“ADA is a global energy services company specializing in advanced drilling solutions for oil, gas, and geothermal applications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchNew Iberia, LA, United StatesHQ recorded Nov 6, 2026501-1,000304 contacts →

Exact match

“LEAM Drilling Systems, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCentennial, CA, United StatesHQ recorded Nov 6, 2026501-1,000269 contacts →

Exact match

“At Forgen, we leave the planet better than we found it.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBothell, WA, United StatesHQ recorded Nov 6, 20261,001-5,000262 contacts →

Exact match

“CASCADE is the leading provider of environmental and geotechnical drilling, site investigation and environmental remediation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAzusa, CA, United StatesHQ recorded Nov 6, 2026501-1,000248 contacts →

Exact match

“Alliance is one of the most experienced and trusted environmental contractors in California.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMissoula, MT, United StatesHQ recorded Nov 6, 2026201-500241 contacts →

Exact match

“Envirocon safely and reliably delivers projects that protect, remediate, and restore our environment for commercial and government clients nationwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500226 contacts →

Exact match

“Since 1989, RECON has successfully completed over environmental remediation, geotechnical, and mine reclamation projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSeattle, WA, United StatesHQ recorded Nov 6, 2026201-500222 contacts →

Exact match

“Global is a leader in the marine services industry with decades of experience managing complex, critical and technical projects in and around the water.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500217 contacts →

Exact match

“Stage 3 Separation is North America’s leading service provider for fluid conservation, solids control and waste mitigation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500214 contacts →

Exact match

“BOS Solutions (BOS) is a full service provider of solutions for drilling fluids treatment and recovery.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchWilimington, CA, United StatesHQ recorded Nov 6, 2026201-500206 contacts →

Exact match

“American Integrated Services, Inc.(AIS) offers comprehensive solutions through environmental construction and remediation, industrial demolition, abatement, 24/7 emergency…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchEl Reno, OK, United StatesHQ recorded Nov 6, 20261,001-5,000205 contacts →

Exact match

“Nomac Drilling is now Patterson-UTI.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchRoseville, CA, United StatesHQ recorded Nov 6, 2026201-500190 contacts →

Exact match

“Odin Environmental Solutions, LLC (Odin) is an award-winning contractor delivering complex environmental, geotechnical, and heavy civil infrastructure projects nationwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSt. Paul, MN, United StatesHQ recorded Nov 6, 2026201-500190 contacts →

Exact match

“Bay West is an environmental and industrial services provider for site investigations, groundwater and soil remediation, munitions cleanup, hazardous waste management, industrial…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchGalveston, TX, United StatesHQ recorded Nov 6, 2026n/a183 contacts →

Exact match

“The Callan Marine team offers comprehensive dredging solutions for any project.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMidland, NM, United StatesHQ recorded Nov 6, 2026501-1,000167 contacts →

Exact match

“SAFETY At Mulholland the safe completion of each job we perform is our number one priority.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLa Porte, LA, United StatesHQ recorded Nov 6, 2026201-500167 contacts →

Exact match

“Envent Corporation is the industry leader in environmental services for the petrochemical industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchFarmington Hills, WI, United StatesHQ recorded Nov 6, 2026201-500162 contacts →

Exact match

“CTI and Associates, Inc.(CTI) is an Environmental, Remediation, Engineering, and Construction firm focused on protecting, enhancing and restoring our environment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchRobbinsville, NY, United StatesHQ recorded Nov 6, 202651-200152 contacts →

Exact match

“Founded in Sovereign is an environmental and water and wastewater construction firm with offices throughout the country.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchOntario, CA, United StatesHQ recorded Nov 6, 2026201-500148 contacts →

Exact match

“Geo-Logic Associates, Inc.(GLA) is an employee-owned, multidisciplinary consulting firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMonrovia, CA, United StatesHQ recorded Nov 6, 202651-200139 contacts →

Exact match

“Converse was established in 1946 by Professor Frederick J.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchYaphank, GA, United StatesHQ recorded Nov 6, 202651-200138 contacts →

Exact match

“EnviroTrac Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,443 environmental drilling contractors based in the United States

See the full list, filter by size, metro and specialty, and access 6,748 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental drilling contractors based in the United States at a glance

As of Nov 6, 2026
29.0%Verified-email coverage
16.1Average contacts per company
11-50Median size (employees)
3.7%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
567
11-50
589
51-200
207
201-500
44
501-1,000
14
1,001-5,000
10
5,001-10,000
2

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 1,443 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United States whose business descriptions match “environmental drilling contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 6,748 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Environmental drilling contractors by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “environmental drilling contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental drilling contractors are there based in the United States?

RevenueBase identified 1,443 company matches for environmental drilling contractors associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

PMI tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most environmental drilling contractors?

Houston leads with 53 company records, followed by Midland (17) and Oklahoma City (11).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 6,748 professional contacts with verified work emails tracked across these 1,443 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,443 environmental drilling contractors based in the United States. Start with a free account, no credit card.

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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.