Company lists · Data refreshed September 2026

Top 25 Plant maintenance contractors based in the United States

Name: Plant maintenance contractors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,477 companies tracked

RevenueBase identified 1,477 company matches for plant maintenance contractors associated with the United States as of September 2026 and tracks 31,911 professional contacts across them, including 8,726 with verified work emails. Houston is the largest hub.

This list covers company matches for plant maintenance 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 September 17, 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 17, 2026 How this list was built

1,477Companies

31,911Contacts tracked

8,726Verified emails

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The 25 largest plant maintenance contractors based in the United States

Ranked by team size

Top 25 of 1,477 company matches for plant maintenance contractors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Advanced Technology Services ATS	Exact match	Peoria, IL, United StatesHQ recorded Sep 17, 2026	1,001-5,000	2,216 contacts →
	Exact match “Advanced Technology Services, Inc.(ATS) is a single source for industrial maintenance, technology and parts, offering a complete solution for support, training, monitoring and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	NAES	Exact match	Issaquah, WA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,956 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 · Sep 17, 2026 · View company records in RevenueBase
3	Brown & Root Industrial Services, LLC	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 17, 2026	5,001-10,000	1,940 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 · Sep 17, 2026 · View company records in RevenueBase
4	Starcon International, INC	Exact match	La Porte, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	866 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 · Sep 17, 2026 · View company records in RevenueBase
5	Lowe's PRO Supply	Exact match	Mooresville, NC, United StatesHQ recorded Sep 17, 2026	501-1,000	810 contacts →
	Exact match “You promised your tenants beautiful, functional spaces for them to live, work, and play.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Airborne Maintenance And Engineering Services	Exact match	Wilmington, OH, United StatesHQ recorded Sep 17, 2026	501-1,000	664 contacts →
	Exact match “Airborne Maintenance & Engineering Services is your first stop for maintenance when performance, delivery, and quality matter.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Maclellan Integrated Services, INC	Exact match	Lexington, KY, United StatesHQ recorded Sep 17, 2026	1,001-5,000	650 contacts →
	Exact match “MacLellan Integrated Services provides critical process cleaning services, process equipment and robotics maintenance, production line side support, sludge and wastewater…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	IH Services, INC	Exact match	Sebastian, FL, United StatesHQ recorded Sep 17, 2026	1,001-5,000	642 contacts →
	Exact match “Where Facility Excellence Meets Defense Standards Ready • Secure • Lean We serve operators who cannot afford a facility failure: defense primes, secure federal installations…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	USA Debusk	Exact match	Deer Park, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	640 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 · Sep 17, 2026 · View company records in RevenueBase
10	CAM Industrial Solutions LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	5,001-10,000	434 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 · Sep 17, 2026 · View company records in RevenueBase
11	Allied Reliability	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	201-500	402 contacts →
	Exact match “Allied Reliability provides reliability and maintenance solutions across the lifecycle of your assets to deliver required throughput at lowest operating cost.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Partner Industrial	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	353 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 · Sep 17, 2026 · View company records in RevenueBase
13	Debra-Kuempel	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 17, 2026	1,001-5,000	346 contacts →
	Exact match “With more than 70 years of experience, DeBra-Kuempel is a leading provider of mechanical, electrical, and plumbing services to Cincinnati, Dayton, Columbus, Evansville, Lexington…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Triangle Services	Exact match	Fort Lauderdale, FL, United StatesHQ recorded Sep 17, 2026	1,001-5,000	330 contacts →
	Exact match “Triangle Services specializes in providing facility and equipment operations management, maintenance and support services specifically designed to meet our customers' needs.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Tifco Industries	Exact match	Cypress, TX, United StatesHQ recorded Sep 17, 2026	201-500	323 contacts →
	Exact match “TIFCO Industries, a trusted name in the industry, stands as a premier single-source stocking distributor of high-quality maintenance and repair operation (MRO) products since 1961.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Tech24	Exact match	Greenville, SC, United StatesHQ recorded Sep 17, 2026	501-1,000	290 contacts →
	Exact match “Tech 24 is the service industry leader, providing fast, complete, multi-regional repair and preventive plan solutions for commercial refrigeration, cooking, beverage and HVAC…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	GEM Incorporated	Exact match	Walbridge, OH, United StatesHQ recorded Sep 17, 2026	1,001-5,000	270 contacts →
	Exact match “Contractor for Life At GEM Inc, we’re experienced problem solvers with the insight, integrity and resources to see you through your toughest challenges.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Industrial Service Solutions	Exact match	Houston, TX, United StatesHQ recorded Sep 17, 2026	1,001-5,000	235 contacts →
	Exact match “Industrial Service Solutions provides nationwide field, shop, and supply services for a diverse set of industrial markets with breadth and depth in application knowledge and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Velociti Services	Exact match	Atlanta, GA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	208 contacts →
	Exact match “Our Mission: To be the most respected facilities services company in the world.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	AIR Force ONE	Exact match	Dublin, OH, United StatesHQ recorded Sep 17, 2026	201-500	201 contacts →
	Exact match “Our approach puts you and your needs first.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Sack Company	Exact match	Statesboro, GA, United StatesHQ recorded Sep 17, 2026	501-1,000	184 contacts →
	Exact match “With offices in Statesboro, GA, Savannah, GA, Atlanta, GA, Charlotte, NC, and Lexington, SC, The Sack Company is one of the largest industrial mechanical, electrical, plumbing…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	JAY Industrial Repair	Exact match	Birmingham, AL, United StatesHQ recorded Sep 17, 2026	201-500	183 contacts →
	Exact match “Jay Industrial Repair is an industrial service and manufacturing business focused on quality on-time solutions in electric motor and controls sales and services, and in-field…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	ICR Services	Exact match	Warren, MI, United StatesHQ recorded Sep 17, 2026	201-500	181 contacts →
	Exact match “Achieve world-class Overall Equipment Effectiveness (OEE) with Full-service MRO Solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Greenwood, INC	Exact match	Greenville, SC, United StatesHQ recorded Sep 17, 2026	501-1,000	176 contacts →
	Exact match “GreenWood, Inc, headquartered in Greenville, SC; is a WBENC Certified, fully licensed Industrial General Contractor.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Enprotech	Exact match	Cleveland, OH, United StatesHQ recorded Sep 17, 2026	201-500	171 contacts →
	Exact match “To keep your production in motion, it takes an experienced partner dedicated to your equipment 24/7.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “plant maintenance contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,477 plant maintenance contractors based in the United States

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Plant maintenance contractors based in the United States at a glance

As of Sep 17, 2026

27.3%Verified-email coverage

21.6Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

622

11-50

471

51-200

260

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 1,477 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 “plant maintenance 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 8,726 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 17, 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 “plant maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many plant maintenance contractors are there based in the United States?

RevenueBase identified 1,477 company matches for plant maintenance contractors 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?

Advanced Technology Services ATS tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most plant maintenance contractors?

Houston leads with 32 company records, followed by Atlanta (16) and New York (15).

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 8,726 professional contacts with verified work emails tracked across these 1,477 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 17, 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.