Company lists · Data refreshed October 2026

Top 25 Industrial plant operators based in the United States

RevenueBase identified 275 company matches for industrial plant operators associated with the United States as of October 2026 and tracks 23,277 professional contacts across them, including 5,057 with verified work emails. Houston is the largest hub.

This list covers company matches for industrial plant operators 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 16, 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 16, 2026 How this list was built
275Companies
23,277Contacts tracked
5,057Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest industrial plant operators based in the United States

Ranked by team size
Top 25 of 275 company matches for industrial plant operators based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 16, 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 matchWilmington, DE, United StatesHQ recorded Oct 16, 202610001+2,497 contacts →

Exact match

“Cleaning water, conserving energy and delivering maintenance solutions since 1919.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
2Exact matchIssaquah, WA, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
3Exact matchBaton Rouge, LA, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
4Exact matchThe Woodlands, TX, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
5Exact matchSpring, TX, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
6Exact matchBaton Rouge, LA, United StatesHQ recorded Oct 16, 20261,001-5,0001,036 contacts →

Exact match

“EXCEL is a leading provider of industrial construction services, including maintenance, turnarounds, fabrication, and disaster recovery.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
7Exact matchLa Porte, TX, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
8Exact matchHouston, TX, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
9Exact matchDeer Park, TX, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
11Exact matchSumter, SC, United StatesHQ recorded Oct 16, 2026501-1,000475 contacts →

Exact match

“Thompson Industrial Services, LLC offers the broadest line of specialized industrial cleaning services with advanced automated technology and seasoned personnel.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
13Exact matchLa Porte, TX, United StatesHQ recorded Oct 16, 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 16, 2026 · View company records in RevenueBase
14Exact matchCherryfield, ME, United StatesHQ recorded Oct 16, 20261,001-5,000282 contacts →

Exact match

“FATEH GROUP is committed to provide its customers with high-quality services and products.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
15Exact matchLos Alamitos, CA, United StatesHQ recorded Oct 16, 2026501-1,000260 contacts →

Exact match

“Founded in 1968, Ancon Services has expanded our services to cover virtually all of our clients industrial and environmental needs.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
16Exact matchGrayling, MI, United StatesHQ recorded Oct 16, 202651-200215 contacts →

Exact match

“IPEC, L.L.C.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
17Exact matchPasadena, TX, United StatesHQ recorded Oct 16, 2026501-1,000195 contacts →

Exact match

“TIMEC, founded in 1971, has over 50 years of experience delivering best-in-class safety, quality, and efficiency.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
18Exact matchGreenville, SC, United StatesHQ recorded Oct 16, 2026501-1,000187 contacts →

Exact match

“GreenWood, Inc, headquartered in Greenville, SC; is a WBENC Certified, fully licensed Industrial General Contractor.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
19Exact matchVidor, United StatesHQ recorded Oct 16, 202651-200186 contacts →

Exact match

“MECOR es una empresa de servicios especializada en la ejecución de trabajos de construcción y mantenimiento de plantas industriales en el sector energético.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
20Exact matchAtlanta, GA, United StatesHQ recorded Oct 16, 20261,001-5,000180 contacts →

Exact match

“Williams Industrial Services Group, LLC (Williams) offers a comprehensive range of general construction, maintenance and modification, specialty construction and maintenance, and…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
21Exact matchElko, NV, United StatesHQ recorded Oct 16, 2026201-500173 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
22Exact matchNewark, DE, United StatesHQ recorded Oct 16, 2026201-500143 contacts →

Exact match

“National Safety Excellence Award Winner 2024 * M.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
23Exact matchSavannah, GA, United StatesHQ recorded Oct 16, 2026501-1,000129 contacts →

Exact match

“MacAljon is your industrial contracting source for any conceivable project!”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
24Exact matchDenver, MT, United StatesHQ recorded Oct 16, 202651-200114 contacts →

Exact match

“Nwestco LLC (Nwestco) is comprised of a variety, yet related, business units ranging from petroleum, car wash, electrical, industrial/commercial, QSR (restaurant POS)…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
25Exact matchLithia, FL, United StatesHQ recorded Oct 16, 2026201-500114 contacts →

Exact match

“Founded in 1966, Central Maintenance and Welding, Inc.(CMW) provides plant maintenance, plant turnaround, construction and fabrication services for chemical processing, mining…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase

Showing 25 of 275 industrial plant operators based in the United States

See the full list, filter by size, metro and specialty, and access 5,057 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Industrial plant operators based in the United States at a glance

As of Oct 16, 2026
21.7%Verified-email coverage
84.6Average contacts per company
51-200Median size (employees)
6.2%Largest-city concentration · Houston
Oct 16, 2026Page data refreshed

Companies by employee count

1-10
65
11-50
69
51-200
75
201-500
28
501-1,000
10
1,001-5,000
20
5,001-10,000
3
10001+
5

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 275 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 “industrial plant operators” 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 5,057 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 16, 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 “industrial plant operators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial plant operators are there based in the United States?

RevenueBase identified 275 company matches for industrial plant operators 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?

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

Which city has the most industrial plant operators?

Houston leads with 17 company records, followed by Baton Rouge (6) and La Porte (6).

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 5,057 professional contacts with verified work emails tracked across these 275 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 16, 2026.

Ready to reach these companies? Verified emails and direct dials for all 275 industrial plant operators based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.