Company lists · Data refreshed November 2026

Top 25 Operations and maintenance contractors based in the United States

RevenueBase identified 1,471 company matches for operations and maintenance contractors associated with the United States as of November 2026 and tracks 58,077 professional contacts across them, including 11,751 with verified work emails. New York is the largest hub.

This list covers company matches for operations and 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 November 6, 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 Nov 6, 2026 How this list was built
1,471Companies
58,077Contacts tracked
11,751Verified emails
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The 25 largest operations and maintenance contractors based in the United States

Ranked by team size
Top 25 of 1,471 company matches for operations and maintenance contractors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchNeedham, MA, United StatesHQ recorded Nov 6, 202610001+3,531 contacts →

Exact match

“Raising the Value of Facilities Services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNY, United StatesHQ recorded Nov 6, 202610001+2,546 contacts →

Exact match

“ABM (NYSE: ABM) is a Fortune 500 company and leading provider of facility solutions with offices throughout the United States and various international locations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchPeoria, IL, United StatesHQ recorded Nov 6, 20261,001-5,0002,329 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchIssaquah, DE, United StatesHQ recorded Nov 6, 20261,001-5,0002,037 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 · Nov 6, 2026 · View company records in RevenueBase
5Exact matchThe Woodlands, LA, United StatesHQ recorded Nov 6, 202610001+1,468 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchPhiladelphia, PA, United StatesHQ recorded Nov 6, 202610001+1,307 contacts →

Exact match

“At Aramark Facilities Management, we’re raising the bar on facilities management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchTampa, FL, United StatesHQ recorded Nov 6, 20265,001-10,0001,269 contacts →

Exact match

“Diversified Maintenance goes above and beyond to make sure our operational excellence and specialized cleaning and maintenance services help businesses run smoothly and seamlessly.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSpring, TX, United StatesHQ recorded Nov 6, 20261,001-5,0001,228 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchParsippany, NJ, United StatesHQ recorded Nov 6, 20261,001-5,0001,075 contacts →

Exact match

“GSH Group is a premier provider of global integrated facilities management and building engineering services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 20265,001-10,000813 contacts →

Exact match

“From one-off projects to ongoing contracts, Kimco gets it done.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchDeer Park, LA, United StatesHQ recorded Nov 6, 20261,001-5,000728 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 · Nov 6, 2026 · View company records in RevenueBase
12Exact matchScottsdale, AZ, United StatesHQ recorded Nov 6, 2026501-1,000701 contacts →

Exact match

“At Vixxo Facility Solutions, we pride ourselves on delivering unparalleled expertise to create outstanding customer experiences.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLexington, KY, United StatesHQ recorded Nov 6, 20261,001-5,000692 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 · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSebastian, FL, United StatesHQ recorded Nov 6, 20261,001-5,000667 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 · Nov 6, 2026 · View company records in RevenueBase
15Exact matchDenham Springs, LA, United StatesHQ recorded Nov 6, 2026n/a666 contacts →

Exact match

“Facilities Maintenance Management is a company comprised of a team of professionals dedicated to uncompromising quality, responsive service, value and integrity.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchChattanooga, TN, United StatesHQ recorded Nov 6, 20261,001-5,000525 contacts →

Exact match

“TOTAL FACILITY SERVICES Headquartered in Chattanooga, Tennessee, ERMC is a leading multi-discipline facility service provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchKnoxville, TN, United StatesHQ recorded Nov 6, 202610001+502 contacts →

Exact match

“ABOUT HES HES is a premier national provider of facilities management services focused 100% on educational institutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Nov 6, 20265,001-10,000465 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 · Nov 6, 2026 · View company records in RevenueBase
19Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500421 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 · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHouston, OR, United StatesHQ recorded Nov 6, 20261,001-5,000375 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 · Nov 6, 2026 · View company records in RevenueBase
21Exact matchFort Lauderdale, FL, United StatesHQ recorded Nov 6, 20261,001-5,000356 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 · Nov 6, 2026 · View company records in RevenueBase
22Exact matchHopkins, SC, United StatesHQ recorded Nov 6, 20261,001-5,000288 contacts →

Exact match

“Defender Services is a national provider of facility maintenance services: Ranging from Janitorial, Industrial Housekeeping, Security, Landscaping, Grounds Maintenance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchWalbridge, OH, United StatesHQ recorded Nov 6, 20261,001-5,000279 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 · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLincoln, NE, United StatesHQ recorded Nov 6, 20261,001-5,000267 contacts →

Exact match

“Your Professional Partners in Facility Services ATS - AgTac Services is the premier provider of janitorial services for many environments, specifically, Education.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchNorth Bethesda, MD, United StatesHQ recorded Nov 6, 2026201-500254 contacts →

Exact match

“NIKA delivers comprehensive services and solutions to support the full life cycle of facilities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,471 operations and maintenance contractors based in the United States

See the full list, filter by size, metro and specialty, and access 11,751 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Operations and maintenance contractors based in the United States at a glance

As of Nov 6, 2026
20.2%Verified-email coverage
39.5Average contacts per company
11-50Median size (employees)
2.2%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
487
11-50
472
51-200
274
201-500
115
501-1,000
38
1,001-5,000
56
5,001-10,000
8
10001+
14

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 1,471 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 “operations and 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 11,751 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 November 6, 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 “operations and maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 1,471 company matches for operations and maintenance contractors associated with the United States as of November 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?

C&w Services tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most operations and maintenance contractors?

New York leads with 32 company records, followed by Houston (30) and Atlanta (25).

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 11,751 professional contacts with verified work emails tracked across these 1,471 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 November 6, 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.