Company lists · Data refreshed September 2026

Top 25 Machinery maintenance services based in the United States

Name: Machinery maintenance services 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 809 companies tracked

RevenueBase identified 809 machinery maintenance services headquartered in the United States as of September 2026 and tracks 11,919 professional contacts across them, including 3,627 with verified work emails. Houston is the largest hub.

This list covers machinery maintenance services 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 17, 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 17, 2026 86% judged on-target in blind review

809Companies

11,919Contacts tracked

3,627Verified emails

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The 25 largest machinery maintenance services based in the United States

Ranked by team size

Top 25 of 809 machinery maintenance services based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to machinery maintenance services: 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	Partial evidence	Peoria, IL, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,216 contacts →
	Partial 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 17, 2026
2	Tech24	Indirect evidence	Greenville, SC, United StatesHQ checked Sep 17, 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 17, 2026
3	Industrial Service Solutions	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	235 contacts →
	Indirect 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 17, 2026
4	Polaris Laboratories	Partial evidence	Indianapolis, United StatesHQ checked Sep 17, 2026	201-500	199 contacts →
	Partial evidence “POLARIS Laboratories® can help you prevent maintenance failure.” Source: RevenueBase Database · checked Sep 17, 2026
5	L&h Industrial, INC	Indirect evidence	Gillette, WY, United StatesHQ checked Sep 17, 2026	1,001-5,000	196 contacts →
	Indirect 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 17, 2026
6	Atlas Machine & Supply, INC	Indirect evidence	Louisville, KY, United StatesHQ checked Sep 17, 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 17, 2026
7	Sack Company	Indirect evidence	Statesboro, GA, United StatesHQ checked Sep 17, 2026	501-1,000	184 contacts →
	Indirect 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 17, 2026
8	JAY Industrial Repair	Indirect evidence	Birmingham, AL, United StatesHQ checked Sep 17, 2026	201-500	183 contacts →
	Indirect 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 17, 2026
9	Whaley Foodservice	Partial evidence	Lexington, SC, United StatesHQ checked Sep 17, 2026	201-500	177 contacts →
	Partial evidence “Whaley Foodservice, LLC provides service and maintenance for commercial kitchen equipment in the foodservice industry.” Source: RevenueBase Database · checked Sep 17, 2026
10	Enprotech	Indirect evidence	Cleveland, OH, United StatesHQ checked Sep 17, 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 17, 2026
11	Ontario Refrigeration Service, INC	Indirect evidence	Ontario, United StatesHQ checked Sep 17, 2026	51-200	165 contacts →
	Indirect evidence “With 10 offices serving California, Arizona, Nevada, Utah, and Texas, we are never too far to provide service assistance whenever your equipment may require it!” Source: RevenueBase Database · checked Sep 17, 2026
12	Maintenx	Partial evidence	Tampa, FL, United StatesHQ checked Sep 17, 2026	201-500	121 contacts →
	Partial evidence “Total Facility Maintenance & Repair Company.” Source: RevenueBase Database · checked Sep 17, 2026
13	Power Services Group, INC	Partial evidence	Cape Coral, FL, United StatesHQ checked Sep 17, 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 17, 2026
14	Horner Industrial Group	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 17, 2026	201-500	102 contacts →
	Indirect 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 17, 2026
15	Manufacturing Maintenance Solutions, INC MMS	Partial evidence	Pekin, IL, United StatesHQ checked Sep 17, 2026	201-500	100 contacts →
	Partial evidence “Manufacturing Maintenance Solutions, Inc (MMS) is a service organization dedicated to enhancing its customers' profitability by providing expert manufacturing equipment contract…” Source: RevenueBase Database · checked Sep 17, 2026
16	United Service Technologies, INC	Indirect evidence	Riverside, CA, United StatesHQ checked Sep 17, 2026	51-200	100 contacts →
	Indirect evidence “United Service Technologies operates in California, Nevada, and Texas.” Source: RevenueBase Database · checked Sep 17, 2026
17	Strategic Maintenance Solutions, INC	Indirect evidence	Gorham, ME, United StatesHQ checked Sep 17, 2026	51-200	97 contacts →
	Indirect evidence “SMS provides services to industrial, manufacturing, facilities, and government organizations.” Source: RevenueBase Database · checked Sep 17, 2026
18	Conhagen Rotating Equipment Specialist	Indirect evidence	Kenner, LA, United StatesHQ checked Sep 17, 2026	51-200	94 contacts →
	Indirect evidence “Conhagen is a comprehensive provider of industrial rotating equipment services, including engineering, field services, shop services, manufacturing, and repairs, allowing us to…” Source: RevenueBase Database · checked Sep 17, 2026
19	Arthur G Russell Company	Partial evidence	Bristol, CT, United StatesHQ checked Sep 17, 2026	51-200	90 contacts →
	Partial evidence “The Arthur G Russell Company goes beyond building you an automated assembly machine.” Source: RevenueBase Database · checked Sep 17, 2026
20	HECO	Indirect evidence	Kalamazoo, MI, United StatesHQ checked Sep 17, 2026	51-200	87 contacts →
	Indirect evidence “HECO helps industrial plants utilize more dependable motors and equipment.” Source: RevenueBase Database · checked Sep 17, 2026
21	Bulk Equipment Corp	Indirect evidence	Michigan City, IN, United StatesHQ checked Sep 17, 2026	201-500	85 contacts →
	Indirect evidence “Bulk Equipment Corp partners with heavy industry leaders across America to keep operations moving.” Source: RevenueBase Database · checked Sep 17, 2026
22	Bender Ccp, INC	Indirect evidence	Vernon, CA, United StatesHQ checked Sep 17, 2026	51-200	84 contacts →
	Indirect evidence “Bender CCP is one of the leading full service providers of engineered rotating equipment repair and machining services in the US.” Source: RevenueBase Database · checked Sep 17, 2026
23	ALL World Machinery Supply	Partial evidence	Roscoe, IL, United StatesHQ checked Sep 17, 2026	51-200	83 contacts →
	Partial evidence “All World Machinery Supply offers solutions.” Source: RevenueBase Database · checked Sep 17, 2026
24	Core Machinery	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 17, 2026	51-200	81 contacts →
	Partial evidence “Core Machinery, formerly known as Road Machinery.” Source: RevenueBase Database · checked Sep 17, 2026
25	Chadwick-Baross, INC	Indirect evidence	Westbrook, ME, United StatesHQ checked Sep 17, 2026	51-200	80 contacts →
	Indirect evidence “For over 90 years, Chadwick-BaRoss, Inc.” Source: RevenueBase Database · checked Sep 17, 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: machinery maintenance services. 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 machinery maintenance services.
Partial evidence: Its own public description names part of machinery maintenance services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name machinery maintenance services. 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 809 machinery maintenance services based in the United States

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Machinery maintenance services based in the United States at a glance

As of Sep 17, 2026

30.4%Verified-email coverage

14.7Average contacts per company

11-50Median size (employees)

2.7%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

383

11-50

272

51-200

114

201-500

501-1,000

1,001-5,000

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 809 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 machinery maintenance services, 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 “machinery maintenance services”. 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 machinery maintenance services), 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 machinery maintenance services, 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, 3,627 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 17, 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.

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 machinery maintenance services, 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 machinery maintenance services are there based in the United States?

RevenueBase identified 809 machinery maintenance services 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 machinery maintenance services?

Houston leads with 22 headquartered companies, followed by Cleveland (8) and New York (8).

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 3,627 verified decision-maker contacts tracked across these 809 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 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 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.