Company lists · Data refreshed September 2026

Top 25 Drilling rig maintenance providers based in the United States

RevenueBase identified 737 company matches for drilling rig maintenance providers associated with the United States as of September 2026 and tracks 29,434 professional contacts across them, including 4,410 with verified work emails. Houston is the largest hub.

This list covers company matches for drilling rig maintenance providers 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 September 19, 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 Sep 19, 2026 How this list was built
737Companies
29,434Contacts tracked
4,410Verified emails
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The 25 largest drilling rig maintenance providers based in the United States

Ranked by team size
Top 25 of 737 company matches for drilling rig maintenance providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 matchDeer Park, TX, United StatesHQ recorded Sep 19, 2026501-1,0001,371 contacts →

Exact match

“Universal Plant Services (UPS) is the industry's foremost specialists in rotating and reciprocating equipment services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Sep 19, 20261,001-5,0001,182 contacts →

Exact match

“We Are Valaris With decades of expertise and strategic commitment built on efficiency, capability and ingenuity, our sights are continually set toward a future built with purpose…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchHouston, TX, United StatesHQ recorded Sep 19, 20261,001-5,0001,135 contacts →

Exact match

“Stewart & Stevenson is a leading designer, manufacturer and provider of specialized equipment and aftermarket parts and service for the oil and gas and other industries that we…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchDeer Park, TX, United StatesHQ recorded Sep 19, 20265,001-10,000718 contacts →

Exact match

“HPC Industrial, a Clean Harbors business, is the leading provider of specialty maintenance services and technology solutions to the critical energy infrastructure in the United…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Sep 19, 20261,001-5,000635 contacts →

Exact match

“Worldwide Oilfield Machine (WOM) is a multinational equipment manufacturer specializing in solutions for drilling, testing, production and intervention operations.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Sep 19, 2026201-500608 contacts →

Exact match

“Canrig® is a global supplier of rig technology used to enable safe, efficient and responsible drilling operations.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Sep 19, 20261,001-5,000501 contacts →

Exact match

“Ranger is one of the largest providers of high specification mobile rig well services, cased hole wireline services, and ancillary services in the U.S.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchOklahoma City, OK, United StatesHQ recorded Sep 19, 20261,001-5,000440 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 · Sep 19, 2026 · View company records in RevenueBase
9Exact matchHouston, TX, United StatesHQ recorded Sep 19, 20261,001-5,000325 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchWindsor, CO, United StatesHQ recorded Sep 19, 202651-200313 contacts →

Exact match

“Total Directional Services, LLC is a privately owned, managed and operated service company headquartered in Windsor, CO.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchNew Iberia, LA, United StatesHQ recorded Sep 19, 2026501-1,000291 contacts →

Exact match

“LEAM Drilling Systems, Inc.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Sep 19, 2026201-500286 contacts →

Exact match

“Corporate Overview Independence Contract Drilling was formed in 2011 as a vertically integrated premium land drilling services provider.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchHouston, TX, United StatesHQ recorded Sep 19, 2026201-500284 contacts →

Exact match

“Since 2003, Premium Oilfield Technologies has been supplying high quality products to the oil and gas industry.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Sep 19, 2026201-500281 contacts →

Exact match

“Allrig is the one-stop shop partner for all your asset management needs; from inspection, service and repair, to maintenance and parts supply of key equipment.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchPensacola, FL, United StatesHQ recorded Sep 19, 202651-200266 contacts →

Exact match

“Offshore Inland Marine & Oilfield Services, Inc.(OIMO) corporate headquarters in Pensacola,FL provides a full range of Drilling Rig services and construction support activities…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchConroe, TX, United StatesHQ recorded Sep 19, 2026501-1,000209 contacts →

Exact match

“Visit us at MS Directional”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchHouston, TX, United StatesHQ recorded Sep 19, 20261,001-5,000205 contacts →

Exact match

“Drill smarter and faster with Patterson-UTI Drilling’s comprehensive fleet of pad-capable rigs featuring advanced walking systems to enhance your operations so you can reach your…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Sep 19, 2026501-1,000191 contacts →

Exact match

“Getting it done right.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchStafford, TX, United StatesHQ recorded Sep 19, 2026201-500178 contacts →

Exact match

“Reservoir Group is a world-class niche oilfield services company that has been addressing customer challenges for more than 70 years.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchTomball, TX, United StatesHQ recorded Sep 19, 2026201-500165 contacts →

Exact match

“Windlass manufactures, supplies and supports a wide range of API certified drilling equipment.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchHouston, TX, United StatesHQ recorded Sep 19, 20261,001-5,000149 contacts →

Exact match

“Borets is one of the leading manufacturers of oilfield equipment in the world offering a complete array of oil recovery products and services in the operation, repair, and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchBroussard, LA, United StatesHQ recorded Sep 19, 202651-200146 contacts →

Exact match

“Loadmaster Industries is a diversified manufacturing, engineering, design, and field services company with 30 years of experience in the global energy and industrial markets.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchTyler, TX, United StatesHQ recorded Sep 19, 2026201-500133 contacts →

Exact match

“SCANDRILL, INC.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchAustin, TX, United StatesHQ recorded Sep 19, 2026501-1,000130 contacts →

Exact match

“Welcome to On & Offshore Quality Control Specialists, LLC.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchHouston, TX, United StatesHQ recorded Sep 19, 202651-200123 contacts →

Exact match

“LEADERSHIP, EXPERIENCE, QUALITY, AND VALUE BICO DRILLING TOOLS, INC.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 737 drilling rig maintenance providers based in the United States

See the full list, filter by size, metro and specialty, and access 4,410 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Drilling rig maintenance providers based in the United States at a glance

As of Sep 19, 2026
15.0%Verified-email coverage
39.9Average contacts per company
11-50Median size (employees)
18.6%Largest-city concentration · Houston
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
226
11-50
263
51-200
167
201-500
46
501-1,000
12
1,001-5,000
18
5,001-10,000
3

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 737 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 “drilling rig maintenance providers” 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 4,410 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 September 19, 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.

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 “drilling rig maintenance providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many drilling rig maintenance providers are there based in the United States?

RevenueBase identified 737 company matches for drilling rig maintenance providers associated with the United States as of September 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?

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

Which city has the most drilling rig maintenance providers?

Houston leads with 137 company records, followed by Midland (42) and Odessa (24).

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 4,410 professional contacts with verified work emails tracked across these 737 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 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 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.