Company lists · Data refreshed October 2026

Top 25 Refinery services and maintenance companies based in the United States

RevenueBase identified 1,061 company matches for refinery services and maintenance companies associated with the United States as of October 2026 and tracks 41,300 professional contacts across them, including 9,698 with verified work emails. Houston is the largest hub.

This list covers company matches for refinery services and maintenance companies 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 October 22, 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 Oct 22, 2026 How this list was built
1,061Companies
41,300Contacts tracked
9,698Verified emails
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The 25 largest refinery services and maintenance companies based in the United States

Ranked by team size
Top 25 of 1,061 company matches for refinery services and maintenance companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 22, 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 matchIssaquah, WA, United StatesHQ recorded Oct 22, 20261,001-5,0001,999 contacts →

Exact match

“NAES is the power generation industry’s largest independent services provider, with more than 40 years of experience managing risk and turning it into profits.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
2Exact matchBaton Rouge, LA, United StatesHQ recorded Oct 22, 20265,001-10,0001,969 contacts →

Exact match

“Brown & Root Industrial Services offers the full range of industrial services – engineering, construction, maintenance, turnaround, and specialty (painting, scaffolding…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
3Exact matchLa Porte, TX, United StatesHQ recorded Oct 22, 20261,001-5,0001,719 contacts →

Exact match

“Austin Industrial delivers premier maintenance, construction, and soft craft services to the nation’s leading producers of oil, gas & chemicals; energy; and manufactured goods.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
4Exact matchThe Woodlands, TX, United StatesHQ recorded Oct 22, 202610001+1,416 contacts →

Exact match

“As a leading construction and maintenance provider, Bilfinger aims to enhance the efficiency of assets and lower operational costs.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
5Exact matchDeer Park, TX, United StatesHQ recorded Oct 22, 2026501-1,0001,360 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 · Oct 22, 2026 · View company records in RevenueBase
6Exact matchSpring, TX, United StatesHQ recorded Oct 22, 20261,001-5,0001,212 contacts →

Exact match

“Strike safely and reliably delivers the specialized asset maintenance, construction, and contracting services that are business-critical to the energy, chemical, manufacturing…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
7Exact matchLa Porte, TX, United StatesHQ recorded Oct 22, 20261,001-5,000911 contacts →

Exact match

“Starcon is a national, full-service contractor offering comprehensive industrial and mechanical services in the oil & gas/refining, chemical/petrochemical, natural gas processing…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
8Exact matchBaton Rouge, LA, United StatesHQ recorded Oct 22, 20261,001-5,000898 contacts →

Exact match

“Repcon has earned a reputation for leading the industry in turnarounds, specialty welding, construction, pipe fabrication, and maintenance.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
9Exact matchHouston, TX, United StatesHQ recorded Oct 22, 20261,001-5,000725 contacts →

Exact match

“WYATT is recognized for executing complex maintenance, outage, turnaround, and capital construction projects across the Oil, Gas & Chemical, and Power markets.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
10Exact matchDeer Park, TX, United StatesHQ recorded Oct 22, 20265,001-10,000711 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 · Oct 22, 2026 · View company records in RevenueBase
11Exact matchDeer Park, TX, United StatesHQ recorded Oct 22, 20261,001-5,000678 contacts →

Exact match

“USA DeBusk serves the industrial infrastructure sector through a diverse and complementary suite of high-value traditional and specialty services for turnarounds, routine…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Oct 22, 20261,001-5,000621 contacts →

Exact match

“The Mundy Companies is a privately owned company headquartered in Houston, Texas with offices Pasadena, TX, Nederland, TX, and Wilmington, NC.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
13Exact matchHouston, TX, United StatesHQ recorded Oct 22, 20261,001-5,000558 contacts →

Exact match

“Troy has been serving the pipeline industry by providing safe and efficient pipeline construction and maintenance for more than 70 years.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
14Exact matchTulsa, OK, United StatesHQ recorded Oct 22, 20261,001-5,000518 contacts →

Exact match

“Matrix Service is a subsidiary of Matrix Service Company (NASDAQ: MTRX).”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
15Exact matchBaytown, TX, United StatesHQ recorded Oct 22, 20261,001-5,000479 contacts →

Exact match

“Turn2 Specialty Companies is the premier provider of specialty turnaround services in the refining, petrochemical, and power industries.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Oct 22, 20265,001-10,000447 contacts →

Exact match

“With decades of refinery, petrochemical, fertilizer and power plant experience, CAM Industrial Solutions has become the standard in heavy industrial maintenance, turnaround and…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
17Exact matchLa Porte, TX, United StatesHQ recorded Oct 22, 20265,001-10,000431 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
18Exact matchLa Porte, TX, United StatesHQ recorded Oct 22, 20261,001-5,000404 contacts →

Exact match

“Evergreen North America Industrial Services offers a comprehensive range of Industrial Services for oil refineries, petrochemical plants, power generation plants, manufacturing…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
19Exact matchHouston, TX, United StatesHQ recorded Oct 22, 20261,001-5,000357 contacts →

Exact match

“Partner Industrial is a preferred and trusted provider of specialty maintenance services to the downstream energy, power generation, and industrial markets.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
20Exact matchSand Springs, OK, United StatesHQ recorded Oct 22, 2026201-500336 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
21Exact matchVerona, PA, United StatesHQ recorded Oct 22, 2026201-500320 contacts →

Exact match

“Here at Conco, we are always looking for A Better Way.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
22Exact matchNederland, TX, United StatesHQ recorded Oct 22, 20261,001-5,000316 contacts →

Exact match

“Echo Maintenance is a full-service industrial general contractor providing diverse support for maintenance, capital projects and turnarounds to petrochemical and chemical…”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
23Exact matchHouma, LA, United StatesHQ recorded Oct 22, 2026501-1,000307 contacts →

Exact match

“Performance Energy Services, a Danos company, was formed in to deliver safe, client-focused support to the onshore and offshore energy markets.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
24Exact matchCleveland, OH, United StatesHQ recorded Oct 22, 2026501-1,000303 contacts →

Exact match

“Fosbel is the world leader in coke oven battery and glass furnace refractory maintenance services, rebuilds and construction.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
25Exact matchBeaumont, TX, United StatesHQ recorded Oct 22, 2026501-1,000301 contacts →

Exact match

“B&E Resources is an oil field service company specializing in industrial construction and custom fabrication.”

Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase

Showing 25 of 1,061 refinery services and maintenance companies based in the United States

See the full list, filter by size, metro and specialty, and access 9,698 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Refinery services and maintenance companies based in the United States at a glance

As of Oct 22, 2026
23.5%Verified-email coverage
38.9Average contacts per company
11-50Median size (employees)
12.2%Largest-city concentration · Houston
Oct 22, 2026Page data refreshed

Companies by employee count

1-10
263
11-50
363
51-200
272
201-500
85
501-1,000
31
1,001-5,000
39
5,001-10,000
6
10001+
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 1,061 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 “refinery services and maintenance companies” 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 9,698 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 October 22, 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 “refinery services and maintenance companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many refinery services and maintenance companies are there based in the United States?

RevenueBase identified 1,061 company matches for refinery services and maintenance companies associated with the United States as of October 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?

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

Which city has the most refinery services and maintenance companies?

Houston leads with 129 company records, followed by Midland (32) 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 9,698 professional contacts with verified work emails tracked across these 1,061 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 October 22, 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.