Company lists · Data refreshed September 2026

Top 25 Industrial machinery maintenance companies based in the United States

Name: Industrial machinery 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 15, 2026 1,341 companies tracked

RevenueBase identified 1,341 industrial machinery maintenance companies headquartered in the United States as of September 2026 and tracks 19,331 professional contacts across them, including 6,355 with verified work emails. Houston is the largest hub.

This list covers industrial machinery 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 15, 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 15, 2026 86% judged on-target in blind review

1,341Companies

19,331Contacts tracked

6,355Verified emails

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The 25 largest industrial machinery maintenance companies based in the United States

Ranked by team size

Top 25 of 1,341 industrial machinery maintenance companies based in the United States, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to industrial machinery 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	Advanced Technology Services ATS	Strong evidence	Peoria, IL, United StatesHQ checked Sep 15, 2026	1,001-5,000	2,216 contacts →
	Strong evidence “Advanced Technology Services, Inc.(ATS) is a single source for industrial maintenance, technology and parts, offering a complete solution for support, training, monitoring and…” Source: RevenueBase Database · checked Sep 15, 2026
2	Southerncarlson	Indirect evidence	Omaha, NE, United StatesHQ checked Sep 15, 2026	1,001-5,000	634 contacts →
	Indirect evidence “Some of the country's finest fastening and packaging distributors have come together to form SouthernCarlson - a leading distributor of the most recognized brands of construction…” Source: RevenueBase Database · checked Sep 15, 2026
3	CAM Industrial Solutions LLC	Strong evidence	Houston, TX, United StatesHQ checked Sep 15, 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 15, 2026
4	Allied Reliability	Partial evidence	Houston, TX, United StatesHQ checked Sep 15, 2026	201-500	402 contacts →
	Partial evidence “Allied Reliability provides reliability and maintenance solutions across the lifecycle of your assets to deliver required throughput at lowest operating cost.” Source: RevenueBase Database · checked Sep 15, 2026
5	Tech24	Indirect evidence	Greenville, SC, United StatesHQ checked Sep 15, 2026	501-1,000	290 contacts →
	Indirect evidence “Tech 24 is the service industry leader, providing fast, complete, multi-regional repair and preventive plan solutions for commercial refrigeration, cooking, beverage and HVAC…” Source: RevenueBase Database · checked Sep 15, 2026
6	Rotating Machinery Services, INC	Partial evidence	Bethlehem, PA, United StatesHQ checked Sep 15, 2026	201-500	251 contacts →
	Partial evidence “Rotating Machinery Services (RMS)\| Engineering Reliability in Rotating Equipment Since 1998, Rotating Machinery Services (RMS) has redefined the aftermarket for compressors…” Source: RevenueBase Database · checked Sep 15, 2026
7	Industrial Service Solutions	Partial evidence	Houston, TX, United StatesHQ checked Sep 15, 2026	1,001-5,000	235 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 15, 2026
8	K S Services	Partial evidence	Southgate, MI, United StatesHQ checked Sep 15, 2026	201-500	201 contacts →
	Partial evidence “K+S Services is a global supplier specializing in the repair of industrial automation components such as servo drives and welders.” Source: RevenueBase Database · checked Sep 15, 2026
9	TIMEC	Indirect evidence	Pasadena, TX, United StatesHQ checked Sep 15, 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 15, 2026
10	L&h Industrial, INC	Partial evidence	Gillette, WY, United StatesHQ checked Sep 15, 2026	1,001-5,000	196 contacts →
	Partial evidence “Founded in 1964 and headquartered in Gillette, Wyoming, USA, L&H Industrial is a leader in technology innovations, custom manufacturing, and comprehensive services for heavy…” Source: RevenueBase Database · checked Sep 15, 2026
11	Atlas Machine & Supply, INC	Indirect evidence	Louisville, KY, United StatesHQ checked Sep 15, 2026	201-500	185 contacts →
	Indirect evidence “Atlas designs, repairs, and remanufactures complex equipment and components for industry and municipalities.” Source: RevenueBase Database · checked Sep 15, 2026
12	Sack Company	Partial evidence	Statesboro, GA, United StatesHQ checked Sep 15, 2026	501-1,000	184 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 15, 2026
13	JAY Industrial Repair	Partial evidence	Birmingham, AL, United StatesHQ checked Sep 15, 2026	201-500	183 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 15, 2026
14	ICR Services	Indirect evidence	Warren, MI, United StatesHQ checked Sep 15, 2026	201-500	181 contacts →
	Indirect evidence “Achieve world-class Overall Equipment Effectiveness (OEE) with Full-service MRO Solutions.” Source: RevenueBase Database · checked Sep 15, 2026
15	Enprotech	Indirect evidence	Cleveland, OH, United StatesHQ checked Sep 15, 2026	201-500	171 contacts →
	Indirect evidence “To keep your production in motion, it takes an experienced partner dedicated to your equipment 24/7.” Source: RevenueBase Database · checked Sep 15, 2026
16	Mullins Mechanical	Partial evidence	Carrollton, GA, United StatesHQ checked Sep 15, 2026	501-1,000	157 contacts →
	Partial evidence “For More than a decade Mullins Mechanical has been carving our spot in the Industrial/Heavy Commercial Mechanical & Plant Services Industry, leaving behind a legacy of solid…” Source: RevenueBase Database · checked Sep 15, 2026
17	K2 Industrial Services, INC	Partial evidence	Highland, IN, United StatesHQ checked Sep 15, 2026	1,001-5,000	150 contacts →
	Partial evidence “K2 Industrial Services is a national provider of industrial cleaning, tank cleaning, coatings, insulation, scaffolding and more.” Source: RevenueBase Database · checked Sep 15, 2026
18	Electric Motor & Contracting Co., INC	Indirect evidence	Chesapeake, VA, United StatesHQ checked Sep 15, 2026	201-500	131 contacts →
	Indirect evidence “Established in 1960, Electric Motor and Contracting remains one of the largest independently owned electric motor and pump repair shops in the U.S.” Source: RevenueBase Database · checked Sep 15, 2026
19	Goodway Technologies	Strong evidence	Stamford, CT, United StatesHQ checked Sep 15, 2026	51-200	121 contacts →
	Strong evidence “Goodway Technologies manufactures specialized industrial maintenance products for a diverse list of markets including HVAC, Energy, Maritime, Manufacturing and Food and Beverage…” Source: RevenueBase Database · checked Sep 15, 2026
20	Maintenx	Partial evidence	Tampa, FL, United StatesHQ checked Sep 15, 2026	201-500	121 contacts →
	Partial evidence “Total Facility Maintenance & Repair Company.” Source: RevenueBase Database · checked Sep 15, 2026
21	MAHAR	Strong evidence	Saginaw, MI, United StatesHQ checked Sep 15, 2026	51-200	112 contacts →
	Strong evidence “MAHAR provides support and tooling products and supplies to industries that use machinery operations.” Source: RevenueBase Database · checked Sep 15, 2026
22	Power Services Group, INC	Partial evidence	Cape Coral, FL, United StatesHQ checked Sep 15, 2026	51-200	107 contacts →
	Partial evidence “Power Services Group (PSG) is the leading US-owned, independent provider of turnkey maintenance, repair, and overhaul solutions for steam and gas turbines.” Source: RevenueBase Database · checked Sep 15, 2026
23	Horner Industrial Group	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 15, 2026	201-500	102 contacts →
	Partial evidence “For over half a century, Horner Industrial Group has been helping to power your business with industry leading service, quality and value by providing excellence in electrical…” Source: RevenueBase Database · checked Sep 15, 2026
24	Industrial Repair Service	Strong evidence	Cumming, GA, United StatesHQ checked Sep 15, 2026	51-200	102 contacts →
	Strong evidence “Since 1991, Industrial Repair Service has been reducing downtime and cutting maintenance costs for manufacturing plants across the nation.” Source: RevenueBase Database · checked Sep 15, 2026
25	Paragon Technologies, INC	Partial evidence	Warren, MI, United StatesHQ checked Sep 15, 2026	51-200	100 contacts →
	Partial evidence “The Paragon Companies are a group of premier international one-stop service and repair centers for a wide range of industrial electronic, hydraulic and servo controls.” Source: RevenueBase Database · checked Sep 15, 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: industrial machinery 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 industrial machinery maintenance companies.
Partial evidence: Its own public description names part of industrial machinery maintenance companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial machinery 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 1,341 industrial machinery maintenance companies based in the United States

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Industrial machinery maintenance companies based in the United States at a glance

As of Sep 15, 2026

32.9%Verified-email coverage

14.4Average contacts per company

11-50Median size (employees)

3.2%Largest-city concentration · Houston

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

597

11-50

485

51-200

198

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 1,341 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 industrial machinery 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 “industrial machinery 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 industrial machinery 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 industrial machinery 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, 6,355 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 15, 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.

Industrial machinery maintenance companies by metro

Industrial machinery maintenance companies in Houston43

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 industrial machinery 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 industrial machinery maintenance companies are there based in the United States?

RevenueBase identified 1,341 industrial machinery 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?

Advanced Technology Services ATS, headquartered in Peoria, tops this list with the largest team on record.

Which city has the most industrial machinery maintenance companies?

Houston leads with 43 headquartered companies, followed by Indianapolis (11) and Cleveland (10).

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 6,355 verified decision-maker contacts tracked across these 1,341 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 15, 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.