Company lists · Data refreshed November 2026

Top 25 Boiler maintenance and inspection services worldwide

RevenueBase identified 1,642 company matches for boiler maintenance and inspection services worldwide as of November 2026 and tracks 14,683 professional contacts across them, including 2,917 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for boiler maintenance and inspection services worldwide, 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. Country and city lists for boiler maintenance and inspection services follow the table.

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
1,642Companies
14,683Contacts tracked
2,917Verified emails
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The 25 largest boiler maintenance and inspection services worldwide

Ranked by team size
Top 25 of 1,642 company matches for boiler maintenance and inspection services worldwide, 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 matchCape Town, South AfricaHQ recorded Nov 6, 20261,001-5,000679 contacts →

Exact match

“John Thompson is a leader in energy and environmental solutions through value engineering and innovation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact 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
3Exact matchSalvador, BrazilHQ recorded Nov 6, 2026501-1,000272 contacts →

Exact match

“Fundada em setembro de 1996, na cidade de Dias D’Ávila-BA, região metropolitana de Salvador, a PPL Manutenção teve crescimento notório, focado na melhoria contínua em gestão…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchUnited StatesHQ recorded Nov 6, 202651-200269 contacts →

Exact match

“National is a full-service industrial contractor with 35+ years of experience delivering precision-driven boiler, mechanical, construction, and specialty services to industrial…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLancaster, OH, United StatesHQ recorded Nov 6, 2026201-500216 contacts →

Exact match

“At Diamond Power, we partner with customers to tackle even the most complex boiler cleaning issues.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchDallas, TX, United StatesHQ recorded Nov 6, 2026201-500203 contacts →

Exact match

“Cleaver-Brooks Sales and Service, is one of the most innovative and fastest growing boiler services companies in the United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLouisville, TX, United StatesHQ recorded Nov 6, 202651-200161 contacts →

Exact match

“WARE is a commercial and industrial, boiler rental and service company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAnnan, United KingdomHQ recorded Nov 6, 2026201-500120 contacts →

Exact match

“Cochran has been embedded within industrial boiler manufacturing since 1878.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchSanta Ana, CA, United StatesHQ recorded Nov 6, 202651-200109 contacts →

Exact match

“California Boiler is a 100% employee-owned company specializing in complete boiler service, sales, parts and rentals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchItaguaí, BrazilHQ recorded Nov 6, 202651-200109 contacts →

Exact match

“A OKJ ENGENHARIA é uma empresa prestadora de serviços industriais, especializada em Caldeiraria, Construção Civil, Inspeção de Solda, Manutenção Eletromecânica, Pintura…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchVirginia Beach, United StatesHQ recorded Nov 6, 20261,001-5,000101 contacts →

Exact match

“Emergency & Outage Support Engineering Services Fixed-Price Projects Maintenance Repair Services Onsite Vendor Management Services Staff Augmentation/Temporary Labor Payrolling…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchCumming, GA, United StatesHQ recorded Nov 6, 2026201-500100 contacts →

Exact match

“RMR Mechanical is an industrial boiler and mechanical contractor.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchUnited StatesHQ recorded Nov 6, 2026201-500100 contacts →

Exact match

“BoilerMaster Group specialized in boiler and heat exchangers repairs and maintenance, hydrojetting, and refractory and insulation services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchKeighley, United KingdomHQ recorded Nov 6, 202651-20099 contacts →

Exact match

“Your industrial boiler is at the heart of your operations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBlairsville, IL, United StatesHQ recorded Nov 6, 2026201-50095 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchWest Norriton, PA, United StatesHQ recorded Nov 6, 202651-20095 contacts →

Exact match

“Delval has provided thousands of packaged boilers to our trusted clients, more than any other supplier in the region.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCharlotte, NC, United StatesHQ recorded Nov 6, 202651-20095 contacts →

Exact match

“Founded in 1977, C&C Boiler Sales & Service, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchNormanton, United KingdomHQ recorded Nov 6, 202651-20094 contacts →

Exact match

“JBC Industrial Services is the leading name in Industrial Boiler and Burner service, maintenance, and repair.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchUtrecht, NetherlandsHQ recorded Nov 6, 202651-20090 contacts →

Exact match

“Standard Fasel is operating in different energy segments: Boiler Technology Standard Fasel is the expert for the delivery and putting into service of cilindrical, waterpipe…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchRed Deer, AB, CanadaHQ recorded Nov 6, 202651-20088 contacts →

Exact match

“Prime Boiler Services has been servicing the Oil & Gas, Power, Industrial, and Commercial business sectors across Western Canada since 1991.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMacaé, BrazilHQ recorded Nov 6, 202651-20086 contacts →

Exact match

“Fundada em 2006, somos uma empresa de Serviços de engenharia de manutenção, inspeção e caldeiraria localizada em Macaé-RJ.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCape Coral, FL, United StatesHQ recorded Nov 6, 202651-20084 contacts →

Exact match

“Turbine Generator Maintenance, Inc.(TGM) is the premier solution provider for steam and combustion turbine and generator inspection, testing, and repair.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchAurora, OH, CanadaHQ recorded Nov 6, 202651-20083 contacts →

Exact match

“Thermogenics, founded in 1975, is a leading provider of boiler lifecycle solutions in North America.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchOldbury, United KingdomHQ recorded Nov 6, 2026201-50078 contacts →

Exact match

“Rightio is a nationally recognised home and commercial property maintenance company committed to doing things right.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCoolidge, GA, United StatesHQ recorded Nov 6, 2026201-50077 contacts →

Exact match

Recorded description not available.

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

Showing 25 of 1,642 boiler maintenance and inspection services worldwide

See the full list, filter by size, metro and specialty, and access 2,917 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Boiler maintenance and inspection services worldwide at a glance

As of Nov 6, 2026
19.9%Verified-email coverage
8.9Average contacts per company
11-50Median size (employees)
0.9%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
776
11-50
558
51-200
198
201-500
24
501-1,000
9
1,001-5,000
11
5,001-10,000
1

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for boiler maintenance and inspection services are linked below.
What qualifies
Company records worldwide whose business descriptions match “boiler maintenance and inspection services” 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. 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 2,917 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.

Boiler maintenance and inspection services by location

8 lists · largest first

Every Boiler maintenance and inspection services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “boiler maintenance and inspection services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many boiler maintenance and inspection services are there worldwide?

RevenueBase identified 1,642 company matches for boiler maintenance and inspection services worldwide 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?

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

Which country has the most boiler maintenance and inspection services?

The United States leads with 267 companies, followed by the United Kingdom (233) and Brazil (164). Every boiler maintenance and inspection services list by country and city is linked on this page.

Which city has the most boiler maintenance and inspection services?

London leads with 15 company records, followed by New York (11) and Pune (10).

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 2,917 professional contacts with verified work emails tracked across these 1,642 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.