Company lists · Data refreshed October 2026
Top 25 Boiler installation and maintenance contractors worldwide
RevenueBase identified 3,118 company matches for boiler installation and maintenance contractors worldwide as of October 2026 and tracks 18,320 professional contacts across them, including 4,130 with verified work emails. The United Kingdom is the largest market and London the largest hub.
This list covers company matches for boiler installation and maintenance contractors 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 October 9, 2026. Country and city lists for boiler installation and maintenance contractors 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.
The 25 largest boiler installation and maintenance contractors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 651 contacts → | ||||
Exact match “John Thompson is a leader in energy and environmental solutions through value engineering and innovation.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 2 | 404 contacts → | ||||
Exact match “BABCOCK WANSON offers a complete range of products and services for industrial boiler house.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 3 | 315 contacts → | ||||
Exact match “CERREY, a leading Mexican company, is one of the main manufacturers of steam generators in the Americas.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 4 | 277 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 5 | 267 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 6 | 209 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 7 | 198 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 8 | 193 contacts → | ||||
Exact match “R.F.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 9 | 167 contacts → | ||||
Exact match “Victory Energy Operations, LLC is a leading, single-source (concept to completion) supplier of custom-engineered industrial boiler systems and advanced technologies worldwide…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 10 | 149 contacts → | ||||
Exact match “WARE is a commercial and industrial, boiler rental and service company.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 11 | 129 contacts → | ||||
Exact match “As an established heating company based in Kent, Swale Heating are proud to offer expert guidance in choosing the best heating and boiler systems & products available today.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 12 | 119 contacts → | ||||
Exact match “Cochran has been embedded within industrial boiler manufacturing since 1878.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 13 | 118 contacts → | ||||
Exact match “تولید کننده انواع بویلر آبگرم و بخار، هیتر روغن داغ، مبدل حرارتی، مخازن تحت فشار، تجهیزات تصفیه آب و.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 14 | 103 contacts → | ||||
Exact match “Our innovative approach, highly-trained team, and square foot facility gives Helfrich Brothers the ability to offer custom turn-key services for our clients.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 15 | 100 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 16 | 96 contacts → | ||||
Exact match “RMR Mechanical is an industrial boiler and mechanical contractor.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 17 | 95 contacts → | ||||
Exact match “Your industrial boiler is at the heart of your operations.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 18 | 95 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 19 | 93 contacts → | ||||
Exact match “Founded in 1977, C&C Boiler Sales & Service, Inc.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 20 | 92 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 21 | 91 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 22 | 86 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 23 | 86 contacts → | ||||
Exact match “Superior Boiler provides engineered energy solutions and is a leader in clean air emissions technology.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase | |||||
| 24 | 81 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 · Oct 9, 2026 · View company records in RevenueBase | |||||
| 25 | 81 contacts → | ||||
Exact match “Thermogenics, founded in 1975, is a leading provider of boiler lifecycle solutions in North America.” Recorded in the RevenueBase company graph · Oct 9, 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 “boiler installation and 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 3,118 boiler installation and maintenance contractors worldwide
See the full list, filter by size, metro and specialty, and access 4,130 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Boiler installation and maintenance contractors worldwide at a glance
As of Oct 9, 2026Companies by employee count
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 installation and maintenance contractors are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “boiler installation 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. 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 4,130 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 October 9, 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 installation and maintenance contractors by location
6 lists · largest firstEvery Boiler installation and maintenance contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Boiler installation and maintenance contractors based in the United Kingdom857
- Boiler installation and maintenance contractors based in the United States617
- Boiler installation and maintenance contractors based in France225
- Boiler installation and maintenance contractors based in Canada125
- Boiler installation and maintenance contractors based in Spain100
- Boiler installation and maintenance contractors based in the Netherlands93
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 installation and maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many boiler installation and maintenance contractors are there worldwide?
RevenueBase identified 3,118 company matches for boiler installation and maintenance contractors worldwide as of October 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 installation and maintenance contractors?
The United Kingdom leads with 857 companies, followed by the United States (617) and France (225). Every boiler installation and maintenance contractors list by country and city is linked on this page.
Which city has the most boiler installation and maintenance contractors?
London leads with 54 company records, followed by New York (14) and Glasgow (12).
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 4,130 professional contacts with verified work emails tracked across these 3,118 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 October 9, 2026.
Ready to reach these companies? Verified emails and direct dials for all 3,118 boiler installation and maintenance contractors worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 boiler installation and maintenance contractors worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 3,118 matching company records for boiler installation and maintenance contractors worldwide, with 18,320 tracked contacts and 4,130 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 9, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 boiler installation and maintenance contractors worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | John Thompsonjohnthompson.co.za HQ: Cape Town, South AfricaReported employees: 1,001-5,000 | Cape Town, South Africa | 1,001-5,000 | Exact match | 651 contacts → |
“John Thompson is a leader in energy and environmental solutions through value engineering and innovation.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Babcock Wanson Internationalbabcock-wanson.com HQ: Nerac, FranceReported employees: 501-1,000 | Nerac, France | 501-1,000 | Exact match | 404 contacts → |
“BABCOCK WANSON offers a complete range of products and services for industrial boiler house.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Cerreycerrey.com.mx HQ: San Nicolás De Los Garza, MexicoReported employees: 501-1,000 | San Nicolás De Los Garza, Mexico | 501-1,000 | Exact match | 315 contacts → |
“CERREY, a leading Mexican company, is one of the main manufacturers of steam generators in the Americas.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  GEM Incorporatedrlgbuilds.comHQ: Walbridge, OH, United StatesReported employees: 1,001-5,000 | Walbridge, OH, United States | 1,001-5,000 | Exact match | 277 contacts → |
“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 description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Nationalnationaldelivers.com HQ: United StatesReported employees: 51-200 | United States | 51-200 | Exact match | 267 contacts → |
“National is a full-service industrial contractor with 35+ years of experience delivering precision-driven boiler, mechanical, construction, and specialty services to industrial…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Diamond Power Internationalandritz.comHQ: Lancaster, OH, United StatesReported employees: 201-500 | Lancaster, OH, United States | 201-500 | Exact match | 209 contacts → |
“At Diamond Power, we partner with customers to tackle even the most complex boiler cleaning issues.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Cleaver-Brooks Sales And Servicecbservice.com HQ: Dallas, TX, United StatesReported employees: 201-500 | Dallas, TX, United States | 201-500 | Exact match | 198 contacts → |
“Cleaver-Brooks Sales and Service, is one of the most innovative and fastest growing boiler services companies in the United States.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | R.F. Macdonald COrfmacdonald.com HQ: Hayward, CA, United StatesReported employees: 201-500 | Hayward, CA, United States | 201-500 | Exact match | 193 contacts → |
“R.F.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Victory Energy Operations, LLCvictoryenergy.com HQ: Collinsville, OK, United StatesReported employees: 201-500 | Collinsville, OK, United States | 201-500 | Exact match | 167 contacts → |
“Victory Energy Operations, LLC is a leading, single-source (concept to completion) supplier of custom-engineered industrial boiler systems and advanced technologies worldwide…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | WAREwareinc.com HQ: Louisville, KY, United StatesReported employees: 51-200 | Louisville, KY, United States | 51-200 | Exact match | 149 contacts → |
“WARE is a commercial and industrial, boiler rental and service company.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Swale Heating Part Of Sureserveswaleheating.comHQ: Sittingbourne, United KingdomReported employees: 201-500 | Sittingbourne, United Kingdom | 201-500 | Exact match | 129 contacts → |
“As an established heating company based in Kent, Swale Heating are proud to offer expert guidance in choosing the best heating and boiler systems & products available today.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Cochrancochran.co.uk HQ: Annan, United KingdomReported employees: 201-500 | Annan, United Kingdom | 201-500 | Exact match | 119 contacts → |
“Cochran has been embedded within industrial boiler manufacturing since 1878.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Packman Companypackmangroup.com HQ: تهران, IranReported employees: 501-1,000 | تهران, Iran | 501-1,000 | Exact match | 118 contacts → |
“تولید کننده انواع بویلر آبگرم و بخار، هیتر روغن داغ، مبدل حرارتی، مخازن تحت فشار، تجهیزات تصفیه آب و.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Helfrich Brothers Boiler Workshbbwinc.com HQ: Lawrence, MA, United StatesReported employees: 51-200 | Lawrence, MA, United States | 51-200 | Exact match | 103 contacts → |
“Our innovative approach, highly-trained team, and square foot facility gives Helfrich Brothers the ability to offer custom turn-key services for our clients.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  California Boilercaliforniaboiler.comHQ: Santa Ana, CA, United StatesReported employees: 51-200 | Santa Ana, CA, United States | 51-200 | Exact match | 100 contacts → |
“California Boiler is a 100% employee-owned company specializing in complete boiler service, sales, parts and rentals.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | RMR Mechanical LLC And Bodman Services LLCrmrmechanical.com HQ: Cumming, GA, United StatesReported employees: 201-500 | Cumming, GA, United States | 201-500 | Exact match | 96 contacts → |
“RMR Mechanical is an industrial boiler and mechanical contractor.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Byworth Boilers Limitedbyworth.co.uk HQ: Keighley, United KingdomReported employees: 51-200 | Keighley, United Kingdom | 51-200 | Exact match | 95 contacts → |
“Your industrial boiler is at the heart of your operations.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Boiler Master SDN BHDboilermaster.biz HQ: United StatesReported employees: 201-500 | United States | 201-500 | Exact match | 95 contacts → |
“BoilerMaster Group specialized in boiler and heat exchangers repairs and maintenance, hydrojetting, and refractory and insulation services.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | C&c Boiler Sales & Service, INCccboiler.com HQ: Charlotte, NC, United StatesReported employees: 51-200 | Charlotte, NC, United States | 51-200 | Exact match | 93 contacts → |
“Founded in 1977, C&C Boiler Sales & Service, Inc.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Delval Equipmentdelval.com HQ: West Norriton, PA, United StatesReported employees: 51-200 | West Norriton, PA, United States | 51-200 | Exact match | 92 contacts → |
“Delval has provided thousands of packaged boilers to our trusted clients, more than any other supplier in the region.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | JBCjbcindserv.co.uk HQ: Normanton, United KingdomReported employees: 51-200 | Normanton, United Kingdom | 51-200 | Exact match | 91 contacts → |
“JBC Industrial Services is the leading name in Industrial Boiler and Burner service, maintenance, and repair.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Standard Fasel B.Vstandardfasel.nl HQ: Utrecht, NetherlandsReported employees: 51-200 | Utrecht, Netherlands | 51-200 | Exact match | 86 contacts → |
“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 description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Superior Boilersuperiorboiler.com HQ: Hutchinson, KS, United StatesReported employees: 51-200 | Hutchinson, KS, United States | 51-200 | Exact match | 86 contacts → |
“Superior Boiler provides engineered energy solutions and is a leader in clean air emissions technology.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Prime Boiler Services, A Thermogenics Companyprimeboiler.com HQ: Red Deer, AB, CanadaReported employees: 51-200 | Red Deer, AB, Canada | 51-200 | Exact match | 81 contacts → |
“Prime Boiler Services has been servicing the Oil & Gas, Power, Industrial, and Commercial business sectors across Western Canada since 1991.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Thermogenicsthermogenics.com HQ: Aurora, ON, CanadaReported employees: 51-200 | Aurora, ON, Canada | 51-200 | Exact match | 81 contacts → |
“Thermogenics, founded in 1975, is a leading provider of boiler lifecycle solutions in North America.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,118 company matches
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Boiler installation and maintenance contractors: dataset insights
October 9, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
3,014 records in the displayed employee bands.
104 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 3,118 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 9, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Boiler installation and maintenance contractors by location
6 lists · largest firstEvery Boiler installation and maintenance contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Boiler installation and maintenance contractors based in the United Kingdom857
- Boiler installation and maintenance contractors based in the United States617
- Boiler installation and maintenance contractors based in France225
- Boiler installation and maintenance contractors based in Canada125
- Boiler installation and maintenance contractors based in Spain100
- Boiler installation and maintenance contractors based in the Netherlands93
Questions about this company list
What does Exact match mean for boiler installation and maintenance contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many boiler installation and maintenance contractors did RevenueBase find worldwide?
The saved snapshot records 3,118 matching company records, 18,320 tracked contacts and 4,130 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 9, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 boiler installation and maintenance contractors worldwide. Snapshot: October 9, 2026. https://revenuebase.ai/companies/browse/boiler-installation-and-maintenance-contractors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 boiler installation and maintenance contractors worldwide
RevenueBase records 3,118 matching company records for boiler installation and maintenance contractors worldwide, with 18,320 tracked contacts and 4,130 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 9, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 boiler installation and maintenance contractors worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | John Thompsonjohnthompson.co.za HQ: Cape Town, South AfricaReported employees: 1,001-5,000 | Cape Town, South Africa | 1,001-5,000 | Exact match | 651 contacts → |
“John Thompson is a leader in energy and environmental solutions through value engineering and innovation.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Babcock Wanson Internationalbabcock-wanson.com HQ: Nerac, FranceReported employees: 501-1,000 | Nerac, France | 501-1,000 | Exact match | 404 contacts → |
“BABCOCK WANSON offers a complete range of products and services for industrial boiler house.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Cerreycerrey.com.mx HQ: San Nicolás De Los Garza, MexicoReported employees: 501-1,000 | San Nicolás De Los Garza, Mexico | 501-1,000 | Exact match | 315 contacts → |
“CERREY, a leading Mexican company, is one of the main manufacturers of steam generators in the Americas.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | GEM Incorporatedrlgbuilds.com HQ: Walbridge, OH, United StatesReported employees: 1,001-5,000 | Walbridge, OH, United States | 1,001-5,000 | Exact match | 277 contacts → |
“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 description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Nationalnationaldelivers.com HQ: United StatesReported employees: 51-200 | United States | 51-200 | Exact match | 267 contacts → |
“National is a full-service industrial contractor with 35+ years of experience delivering precision-driven boiler, mechanical, construction, and specialty services to industrial…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Diamond Power Internationalandritz.com HQ: Lancaster, OH, United StatesReported employees: 201-500 | Lancaster, OH, United States | 201-500 | Exact match | 209 contacts → |
“At Diamond Power, we partner with customers to tackle even the most complex boiler cleaning issues.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Cleaver-Brooks Sales And Servicecbservice.com HQ: Dallas, TX, United StatesReported employees: 201-500 | Dallas, TX, United States | 201-500 | Exact match | 198 contacts → |
“Cleaver-Brooks Sales and Service, is one of the most innovative and fastest growing boiler services companies in the United States.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | R.F. Macdonald COrfmacdonald.com HQ: Hayward, CA, United StatesReported employees: 201-500 | Hayward, CA, United States | 201-500 | Exact match | 193 contacts → |
“R.F.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Victory Energy Operations, LLCvictoryenergy.com HQ: Collinsville, OK, United StatesReported employees: 201-500 | Collinsville, OK, United States | 201-500 | Exact match | 167 contacts → |
“Victory Energy Operations, LLC is a leading, single-source (concept to completion) supplier of custom-engineered industrial boiler systems and advanced technologies worldwide…” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | WAREwareinc.com HQ: Louisville, KY, United StatesReported employees: 51-200 | Louisville, KY, United States | 51-200 | Exact match | 149 contacts → |
“WARE is a commercial and industrial, boiler rental and service company.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Swale Heating Part Of Sureserveswaleheating.com HQ: Sittingbourne, United KingdomReported employees: 201-500 | Sittingbourne, United Kingdom | 201-500 | Exact match | 129 contacts → |
“As an established heating company based in Kent, Swale Heating are proud to offer expert guidance in choosing the best heating and boiler systems & products available today.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Cochrancochran.co.uk HQ: Annan, United KingdomReported employees: 201-500 | Annan, United Kingdom | 201-500 | Exact match | 119 contacts → |
“Cochran has been embedded within industrial boiler manufacturing since 1878.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Packman Companypackmangroup.com HQ: تهران, IranReported employees: 501-1,000 | تهران, Iran | 501-1,000 | Exact match | 118 contacts → |
“تولید کننده انواع بویلر آبگرم و بخار، هیتر روغن داغ، مبدل حرارتی، مخازن تحت فشار، تجهیزات تصفیه آب و.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Helfrich Brothers Boiler Workshbbwinc.com HQ: Lawrence, MA, United StatesReported employees: 51-200 | Lawrence, MA, United States | 51-200 | Exact match | 103 contacts → |
“Our innovative approach, highly-trained team, and square foot facility gives Helfrich Brothers the ability to offer custom turn-key services for our clients.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | California Boilercaliforniaboiler.com HQ: Santa Ana, CA, United StatesReported employees: 51-200 | Santa Ana, CA, United States | 51-200 | Exact match | 100 contacts → |
“California Boiler is a 100% employee-owned company specializing in complete boiler service, sales, parts and rentals.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | RMR Mechanical LLC And Bodman Services LLCrmrmechanical.com HQ: Cumming, GA, United StatesReported employees: 201-500 | Cumming, GA, United States | 201-500 | Exact match | 96 contacts → |
“RMR Mechanical is an industrial boiler and mechanical contractor.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Byworth Boilers Limitedbyworth.co.uk HQ: Keighley, United KingdomReported employees: 51-200 | Keighley, United Kingdom | 51-200 | Exact match | 95 contacts → |
“Your industrial boiler is at the heart of your operations.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Boiler Master SDN BHDboilermaster.biz HQ: United StatesReported employees: 201-500 | United States | 201-500 | Exact match | 95 contacts → |
“BoilerMaster Group specialized in boiler and heat exchangers repairs and maintenance, hydrojetting, and refractory and insulation services.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | C&c Boiler Sales & Service, INCccboiler.com HQ: Charlotte, NC, United StatesReported employees: 51-200 | Charlotte, NC, United States | 51-200 | Exact match | 93 contacts → |
“Founded in 1977, C&C Boiler Sales & Service, Inc.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Delval Equipmentdelval.com HQ: West Norriton, PA, United StatesReported employees: 51-200 | West Norriton, PA, United States | 51-200 | Exact match | 92 contacts → |
“Delval has provided thousands of packaged boilers to our trusted clients, more than any other supplier in the region.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | JBCjbcindserv.co.uk HQ: Normanton, United KingdomReported employees: 51-200 | Normanton, United Kingdom | 51-200 | Exact match | 91 contacts → |
“JBC Industrial Services is the leading name in Industrial Boiler and Burner service, maintenance, and repair.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Standard Fasel B.Vstandardfasel.nl HQ: Utrecht, NetherlandsReported employees: 51-200 | Utrecht, Netherlands | 51-200 | Exact match | 86 contacts → |
“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 description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Superior Boilersuperiorboiler.com HQ: Hutchinson, KS, United StatesReported employees: 51-200 | Hutchinson, KS, United States | 51-200 | Exact match | 86 contacts → |
“Superior Boiler provides engineered energy solutions and is a leader in clean air emissions technology.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Prime Boiler Services, A Thermogenics Companyprimeboiler.com HQ: Red Deer, AB, CanadaReported employees: 51-200 | Red Deer, AB, Canada | 51-200 | Exact match | 81 contacts → |
“Prime Boiler Services has been servicing the Oil & Gas, Power, Industrial, and Commercial business sectors across Western Canada since 1991.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Thermogenicsthermogenics.com HQ: Aurora, ON, CanadaReported employees: 51-200 | Aurora, ON, Canada | 51-200 | Exact match | 81 contacts → |
“Thermogenics, founded in 1975, is a leading provider of boiler lifecycle solutions in North America.” Recorded description excerpt · October 9, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Boiler installation and maintenance contractors: dataset insights
October 9, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
3,014 records in the displayed employee bands.
104 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 3,118 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 9, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Boiler installation and maintenance contractors by location
6 lists · largest firstEvery Boiler installation and maintenance contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Boiler installation and maintenance contractors based in the United Kingdom857
- Boiler installation and maintenance contractors based in the United States617
- Boiler installation and maintenance contractors based in France225
- Boiler installation and maintenance contractors based in Canada125
- Boiler installation and maintenance contractors based in Spain100
- Boiler installation and maintenance contractors based in the Netherlands93
Questions about this company list
What does Exact match mean for boiler installation and maintenance contractors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many boiler installation and maintenance contractors did RevenueBase find worldwide?
The saved snapshot records 3,118 matching company records, 18,320 tracked contacts and 4,130 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 9, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 boiler installation and maintenance contractors worldwide. Snapshot: October 9, 2026. https://revenuebase.ai/companies/browse/boiler-installation-and-maintenance-contractors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗