Company lists · Data refreshed September 2026

Top 25 Refinery maintenance companies based in the United States

Name: Refinery maintenance 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 21, 2026 517 companies tracked

RevenueBase identified 517 refinery maintenance companies headquartered in the United States as of September 2026 and tracks 24,438 professional contacts across them, including 5,905 with verified work emails. Houston is the largest hub.

This list covers refinery maintenance 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 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

517Companies

24,438Contacts tracked

5,905Verified emails

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The 25 largest refinery maintenance companies based in the United States

Ranked by team size

Top 25 of 517 refinery maintenance companies based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to refinery maintenance 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	Brown & Root Industrial Services, LLC	Partial evidence	Baton Rouge, LA, United StatesHQ checked Sep 21, 2026	5,001-10,000	1,940 contacts →
	Partial evidence “Brown & Root Industrial Services offers the full range of industrial services – engineering, construction, maintenance, turnaround, and specialty (painting, scaffolding…” Source: RevenueBase Database · checked Sep 21, 2026
2	Bilfinger North America	Partial evidence	The Woodlands, TX, United StatesHQ checked Sep 21, 2026	10001+	1,400 contacts →
	Partial evidence “As a leading construction and maintenance provider, Bilfinger aims to enhance the efficiency of assets and lower operational costs.” Source: RevenueBase Database · checked Sep 21, 2026
3	Universal Plant Services	Indirect evidence	Deer Park, TX, United StatesHQ checked Sep 21, 2026	501-1,000	1,371 contacts →
	Indirect evidence “Universal Plant Services (UPS) is the industry's foremost specialists in rotating and reciprocating equipment services.” Source: RevenueBase Database · checked Sep 21, 2026
4	Strike	Partial evidence	Spring, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,155 contacts →
	Partial evidence “Strike safely and reliably delivers the specialized asset maintenance, construction, and contracting services that are business-critical to the energy, chemical, manufacturing…” Source: RevenueBase Database · checked Sep 21, 2026
5	Repcon, INC	Partial evidence	Baton Rouge, LA, United StatesHQ checked Sep 21, 2026	1,001-5,000	877 contacts →
	Partial evidence “Repcon has earned a reputation for leading the industry in turnarounds, specialty welding, construction, pipe fabrication, and maintenance.” Source: RevenueBase Database · checked Sep 21, 2026
6	Starcon International, INC	Indirect evidence	La Porte, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	866 contacts →
	Indirect evidence “Starcon is a national, full-service contractor offering comprehensive industrial and mechanical services in the oil & gas/refining, chemical/petrochemical, natural gas processing…” Source: RevenueBase Database · checked Sep 21, 2026
7	Hydrochempsc	Partial evidence	Deer Park, TX, United StatesHQ checked Sep 21, 2026	5,001-10,000	718 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
8	Wyatt Field Service Company	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	686 contacts →
	Partial evidence “WYATT is recognized for executing complex maintenance, outage, turnaround, and capital construction projects across the Oil, Gas & Chemical, and Power markets.” Source: RevenueBase Database · checked Sep 21, 2026
9	USA Debusk	Indirect evidence	Deer Park, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	640 contacts →
	Indirect evidence “USA DeBusk serves the industrial infrastructure sector through a diverse and complementary suite of high-value traditional and specialty services for turnarounds, routine…” Source: RevenueBase Database · checked Sep 21, 2026
10	The Mundy Companies	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	564 contacts →
	Indirect evidence “The Mundy Companies is a privately owned company headquartered in Houston, Texas with offices Pasadena, TX, Nederland, TX, and Wilmington, NC.” Source: RevenueBase Database · checked Sep 21, 2026
11	BECHT	Indirect evidence	Liberty Corner, NJ, United StatesHQ checked Sep 21, 2026	501-1,000	545 contacts →
	Indirect evidence “Becht partners with industrial operators across the energy and process sectors to solve complex challenges that impact safety, reliability, and profitability.” Source: RevenueBase Database · checked Sep 21, 2026
12	Turn2 Specialty Companies	Indirect evidence	Baytown, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	475 contacts →
	Indirect evidence “Turn2 Specialty Companies is the premier provider of specialty turnaround services in the refining, petrochemical, and power industries.” Source: RevenueBase Database · checked Sep 21, 2026
13	Evergreen North America Industrial Services	Partial evidence	La Porte, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	468 contacts →
	Partial evidence “Evergreen North America Industrial Services offers a comprehensive range of Industrial Services for oil refineries, petrochemical plants, power generation plants, manufacturing…” Source: RevenueBase Database · checked Sep 21, 2026
14	CAM Industrial Solutions LLC	Strong evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	5,001-10,000	434 contacts →
	Strong evidence “With decades of refinery, petrochemical, fertilizer and power plant experience, CAM Industrial Solutions has become the standard in heavy industrial maintenance, turnaround and…” Source: RevenueBase Database · checked Sep 21, 2026
15	The Stronghold Companies	Partial evidence	La Porte, TX, United StatesHQ checked Sep 21, 2026	5,001-10,000	419 contacts →
	Partial evidence “As part of the Quanta Services Family of Companies (NYSE: PWR)- Stronghold provides the safest, leanest, most efficient, quality solutions for the refinery, petrochemical and…” Source: RevenueBase Database · checked Sep 21, 2026
16	Partner Industrial	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	353 contacts →
	Partial evidence “Partner Industrial is a preferred and trusted provider of specialty maintenance services to the downstream energy, power generation, and industrial markets.” Source: RevenueBase Database · checked Sep 21, 2026
17	Cust-O-Fab	Indirect evidence	Sand Springs, OK, United StatesHQ checked Sep 21, 2026	201-500	327 contacts →
	Indirect evidence “Since 1972, CUST-O-FAB has maintained a reputation of consistently providing quality ASME Code fabricated equipment and on-site services for the refining, petrochemical, syngas…” Source: RevenueBase Database · checked Sep 21, 2026
18	Echo Maintenance LLC	Partial evidence	Nederland, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	301 contacts →
	Partial evidence “Echo Maintenance is a full-service industrial general contractor providing diverse support for maintenance, capital projects and turnarounds to petrochemical and chemical…” Source: RevenueBase Database · checked Sep 21, 2026
19	Altairstrickland, LLC	Indirect evidence	La Porte, TX, United StatesHQ checked Sep 21, 2026	201-500	275 contacts →
	Indirect evidence “AltairStrickland is a specialty mechanical contracting company serving the refining, petrochemical, power and fertilizer industries.” Source: RevenueBase Database · checked Sep 21, 2026
20	Udelhoven	Partial evidence	Anchorage, AK, United StatesHQ checked Sep 21, 2026	201-500	233 contacts →
	Partial evidence “Udelhoven Company founded in 1970 is a privately held full service construction, operations and maintenance company offering diversified products and services from oil field…” Source: RevenueBase Database · checked Sep 21, 2026
21	TIMEC	Indirect evidence	Pasadena, TX, United StatesHQ checked Sep 21, 2026	501-1,000	198 contacts →
	Indirect evidence “TIMEC, founded in 1971, has over 50 years of experience delivering best-in-class safety, quality, and efficiency.” Source: RevenueBase Database · checked Sep 21, 2026
22	Butch's Companies	Indirect evidence	Levelland, TX, United StatesHQ checked Sep 21, 2026	501-1,000	189 contacts →
	Indirect evidence “Founded in 1980, Butch's has been leading the pack as the premier service provider for the oil and gas industry.” Source: RevenueBase Database · checked Sep 21, 2026
23	Oscar W. Larson Company	Indirect evidence	Clarkston, MI, United StatesHQ checked Sep 21, 2026	1,001-5,000	187 contacts →
	Indirect evidence “For 80 years, Oscar W.” Source: RevenueBase Database · checked Sep 21, 2026
24	Envent Corporation	Indirect evidence	La Porte, TX, United StatesHQ checked Sep 21, 2026	201-500	174 contacts →
	Indirect evidence “Envent Corporation is the industry leader in environmental services for the petrochemical industry.” Source: RevenueBase Database · checked Sep 21, 2026
25	Mecor C.A	Indirect evidence	Vidor, United StatesHQ checked Sep 21, 2026	51-200	156 contacts →
	Indirect evidence “MECOR es una empresa de servicios especializada en la ejecución de trabajos de construcción y mantenimiento de plantas industriales en el sector energético.” Source: RevenueBase Database · checked Sep 21, 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: refinery maintenance 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 refinery maintenance companies.
Partial evidence: Its own public description names part of refinery maintenance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name refinery maintenance 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 517 refinery maintenance companies based in the United States

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Refinery maintenance companies based in the United States at a glance

As of Sep 21, 2026

24.2%Verified-email coverage

47.3Average contacts per company

11-50Median size (employees)

13.0%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

123

11-50

171

51-200

138

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 517 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 refinery maintenance 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 “refinery maintenance 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 refinery maintenance 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 refinery maintenance 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, 5,905 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.

Refinery maintenance companies by metro

Refinery maintenance companies in Houston67

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 refinery maintenance 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 refinery maintenance companies are there based in the United States?

RevenueBase identified 517 refinery maintenance 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?

Brown & Root Industrial Services, LLC, headquartered in Baton Rouge, tops this list with the largest team on record.

Which city has the most refinery maintenance companies?

Houston leads with 67 headquartered companies, followed by Deer Park (13) and La Porte (11).

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 5,905 verified decision-maker contacts tracked across these 517 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.