Company lists · Data refreshed September 2026
Top 25 Water heater manufacturers worldwide
RevenueBase identified 251 water heater manufacturers worldwide as of September 2026 and tracks 25,966 professional contacts across them, including 4,144 with verified work emails and 0 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.
This list covers water heater manufacturers worldwide, 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 19, 2026. Country and city lists for water heater manufacturers follow the table.
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.
The 25 largest water heater manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 15,266 contacts → | ||||
Indirect evidence “Celebrating its 150th year of business, A.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,410 contacts → | ||||
Indirect evidence “For 100 years, Rheem has stood as a trusted partner for residential and commercial innovations.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,050 contacts → | ||||
Indirect evidence “Com uma trajetória marcada por inovação, pioneirismo e transformação, a Lorenzetti completa 100 anos em 2023.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 689 contacts → | ||||
Strong evidence “Bradford White Corporation is an American-owned, full-line manufacturer of residential, commercial, and industrial products for water heating, space heating, combination heating…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 513 contacts → | ||||
Indirect evidence “Rinnai America Corporation, a subsidiary of Rinnai Corporation in Nagoya, Japan, was established in 1974 and is headquartered in Peachtree City, Georgia.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 340 contacts → | ||||
Strong evidence “Lochinvar, LLC is a leading manufacturer of high-efficiency water heaters, boilers, pool heaters and custom pre-piped packaged systems.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 242 contacts → | ||||
Strong evidence “For over 70 years, Raypak has been the world's leading manufacturer of copper finned boilers and heaters.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 126 contacts → | ||||
Indirect evidence “Empire Comfort Systems: A Company Perspective · Family Owned Since 1932 · A Full Line of Gas-Fired Products for the Independent Dealer · Made in the USA Empire – a Family-Owned…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 126 contacts → | ||||
Indirect evidence “Founded in 1948, LAARS serves a diverse base of customers located in many countries across the globe.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 126 contacts → | ||||
Indirect evidence “ECR International, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 91 contacts → | ||||
Strong evidence “PVI specializes in medium to large ASME water heaters fabricated from AquaPLEX® duplex stainless steel for commercial and institutional installations such as schools, hotels…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 78 contacts → | ||||
Strong evidence “Noritz America Corporation, a subsidiary of Noritz Japan, has corporate offices in Fountain Valley, Calif, and Atlanta, offering a full line of tankless water heaters to meet the…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 76 contacts → | ||||
Strong evidence “Established in 1974, HTP Comfort Solutions LLC is a full-fledged manufacturer on the cutting edge of energy efficient space and water heating technology.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 71 contacts → | ||||
Strong evidence “Manufacturer of heaters, tanks and related products for a wide variety of industries.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 56 contacts → | ||||
Strong evidence “OGI (Oil, Gas, and Industrial) Process Equipment designs, manufactures, sells, and services TERI brand indirect fired water bath heaters and QuikWater® brand direct fired water…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 53 contacts → | ||||
Strong evidence “Gledhill is a leading UK manufacturer of hot water and heating solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 52 contacts → | ||||
Partial evidence “Eemax is leading the evolution of hot water with cutting-edge technology that provides consistent hot water.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 47 contacts → | ||||
Strong evidence “Triangle Tube heating and hot water products have created comfort to families for over 60 years.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 45 contacts → | ||||
Strong evidence “Hamworthy Heating is a British manufacturer and supplier of commercial heating and hot water products.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 45 contacts → | ||||
Partial evidence “For over 40 years, Vokèra has been a trusted name in home heating across the UK and Ireland, delivering reliable, energy efficient solutions for domestic and light commercial…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 43 contacts → | ||||
Indirect evidence “A Arauterm iniciou suas atividades em 11 de maio de 1988 na cidade de Cachoeirinha.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 43 contacts → | ||||
Partial evidence “GDC is the holding company for some of the best known brands in the heating industry, including Dimplex, Creda NOBO, Faber, Robinson Willey, Valor, Wonderfire, Glen, Unidare…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 42 contacts → | ||||
Strong evidence “Hubbell delivers standard and custom water heating solutions across commercial, marine/offshore, foodservice, and industrial spaces.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 40 contacts → | ||||
Strong evidence “Lochinvar designs, manufactures and distributes a comprehensive range of high efficiency gas fired water heaters and boilers for commercial and industrial applications.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 40 contacts → | ||||
Strong evidence “Water Heaters Only, Inc specializes in the repair and replacement of water heaters.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: water heater manufacturers. 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 water heater manufacturers.
- Partial evidence
- Its own public description names part of water heater manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name water heater manufacturers. 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 251 water heater manufacturers worldwide
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Water heater manufacturers worldwide at a glance
As of Sep 19, 2026Companies by employee count
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 water heater manufacturers, 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.
- Coverage
- 3 countries, largest first: the United States, Brazil, the United Kingdom. Country and city lists for water heater manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “water heater manufacturers”. 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 water heater manufacturers), 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 water heater manufacturers, and records with no verified work email.
- 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, 4,144 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 19, 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.
Water heater manufacturers by location
3 lists · largest firstEvery Water heater manufacturers 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 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 water heater manufacturers, 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 water heater manufacturers are there worldwide?
RevenueBase identified 251 water heater manufacturers worldwide 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?
A. O. Smith Corporation, headquartered in Milwaukee, tops this list with the largest team on record.
Which country has the most water heater manufacturers?
The United States leads with 149 companies, followed by Brazil (73) and the United Kingdom (29). Every water heater manufacturers list by country and city is linked on this page.
Which city has the most water heater manufacturers?
Sao Paulo leads with 21 headquartered companies, followed by Atlanta (7) and Curitiba (7).
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 4,144 verified decision-maker contacts tracked across these 251 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 251 water heater manufacturers 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 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.
More company lists
Company intelligence · public preview
Top 25 water heater manufacturers worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 251 matching company records for water heater manufacturers worldwide, with 25,966 tracked contacts and 4,144 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: September 19, 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 water heater manufacturers 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 |  A. O. Smith Corporationaosmith.comHQ: Milwaukee, WI, United StatesReported employees: 10001+ | Milwaukee, WI, United States | 10001+ | Exact match | 15,266 contacts → |
“Celebrating its 150th year of business, A.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Rheem Manufacturing Companyrheem.com HQ: Atlanta, GA, United StatesReported employees: 10001+ | Atlanta, GA, United States | 10001+ | Exact match | 3,410 contacts → |
“For 100 years, Rheem has stood as a trusted partner for residential and commercial innovations.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Lorenzetti S Alorenzetti.com.br HQ: Sao Paulo, BrazilReported employees: 1,001-5,000 | Sao Paulo, Brazil | 1,001-5,000 | Exact match | 2,050 contacts → |
“Com uma trajetória marcada por inovação, pioneirismo e transformação, a Lorenzetti completa 100 anos em 2023.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Bradford Whitebradfordwhitecorporation.com HQ: Ambler, PA, United StatesReported employees: 1,001-5,000 | Ambler, PA, United States | 1,001-5,000 | Exact match | 689 contacts → |
“Bradford White Corporation is an American-owned, full-line manufacturer of residential, commercial, and industrial products for water heating, space heating, combination heating…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Rinnai America Corporationrinnai.us HQ: Peachtree City, GA, United StatesReported employees: 201-500 | Peachtree City, GA, United States | 201-500 | Exact match | 513 contacts → |
“Rinnai America Corporation, a subsidiary of Rinnai Corporation in Nagoya, Japan, was established in 1974 and is headquartered in Peachtree City, Georgia.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Lochinvar, LLClochinvar.com HQ: Lebanon, TN, IndiaReported employees: 201-500 | Lebanon, TN, India | 201-500 | Exact match | 340 contacts → |
“Lochinvar, LLC is a leading manufacturer of high-efficiency water heaters, boilers, pool heaters and custom pre-piped packaged systems.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Raypakraypak.com HQ: Oxnard, United StatesReported employees: 501-1,000 | Oxnard, United States | 501-1,000 | Exact match | 242 contacts → |
“For over 70 years, Raypak has been the world's leading manufacturer of copper finned boilers and heaters.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Empire Comfort Systemsempirecomfort.com HQ: Belleville, IL, United StatesReported employees: 201-500 | Belleville, IL, United States | 201-500 | Exact match | 126 contacts → |
“Empire Comfort Systems: A Company Perspective · Family Owned Since 1932 · A Full Line of Gas-Fired Products for the Independent Dealer · Made in the USA Empire – a Family-Owned…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Laars Heating Systemslaars.com HQ: Rochester, NH, United StatesReported employees: 201-500 | Rochester, NH, United States | 201-500 | Exact match | 126 contacts → |
“Founded in 1948, LAARS serves a diverse base of customers located in many countries across the globe.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | ECR Internationalecrinternational.com HQ: Utica, United StatesReported employees: 201-500 | Utica, United States | 201-500 | Exact match | 126 contacts → |
“ECR International, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | PVI Industriespvi.com HQ: Fort Worth, TX, United StatesReported employees: 201-500 | Fort Worth, TX, United States | 201-500 | Exact match | 91 contacts → |
“PVI specializes in medium to large ASME water heaters fabricated from AquaPLEX® duplex stainless steel for commercial and institutional installations such as schools, hotels…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Noritz Americanoritz.com HQ: Fountain Valley, CA, United StatesReported employees: 51-200 | Fountain Valley, CA, United States | 51-200 | Exact match | 78 contacts → |
“Noritz America Corporation, a subsidiary of Noritz Japan, has corporate offices in Fountain Valley, Calif, and Atlanta, offering a full line of tankless water heaters to meet the…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HTP Comfort Solutionshtproducts.com HQ: New Bedford, MA, United StatesReported employees: 51-200 | New Bedford, MA, United States | 51-200 | Exact match | 76 contacts → |
“Established in 1974, HTP Comfort Solutions LLC is a full-fledged manufacturer on the cutting edge of energy efficient space and water heating technology.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Heatec, An Astec Brandastecindustries.comHQ: Chattanooga, TN, United StatesReported employees: 201-500 | Chattanooga, TN, United States | 201-500 | Exact match | 71 contacts → |
“Manufacturer of heaters, tanks and related products for a wide variety of industries.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | OGI Process Equipmentogipe.com HQ: Sand Springs, OK, United StatesReported employees: 51-200 | Sand Springs, OK, United States | 51-200 | Exact match | 56 contacts → |
“OGI (Oil, Gas, and Industrial) Process Equipment designs, manufactures, sells, and services TERI brand indirect fired water bath heaters and QuikWater® brand direct fired water…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Gledhill Groupgledhill.net HQ: Blackpool, United KingdomReported employees: 201-500 | Blackpool, United Kingdom | 201-500 | Exact match | 53 contacts → |
“Gledhill is a leading UK manufacturer of hot water and heating solutions.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Eemax, Inc. A Rheem Companyeemax.com HQ: Waterbury, CT, United StatesReported employees: 51-200 | Waterbury, CT, United States | 51-200 | Exact match | 52 contacts → |
“Eemax is leading the evolution of hot water with cutting-edge technology that provides consistent hot water.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Triangle Tubetriangletube.com HQ: West Deptford Township, NJ, United StatesReported employees: 11-50 | West Deptford Township, NJ, United States | 11-50 | Exact match | 47 contacts → |
“Triangle Tube heating and hot water products have created comfort to families for over 60 years.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Hamworthy Heating LTDhamworthy-heating.com HQ: Hull, United KingdomReported employees: 51-200 | Hull, United Kingdom | 51-200 | Exact match | 45 contacts → |
“Hamworthy Heating is a British manufacturer and supplier of commercial heating and hot water products.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Vokera By Riellovokera.co.uk HQ: Hertfordshire, United KingdomReported employees: 11-50 | Hertfordshire, United Kingdom | 11-50 | Exact match | 45 contacts → |
“For over 40 years, Vokèra has been a trusted name in home heating across the UK and Ireland, delivering reliable, energy efficient solutions for domestic and light commercial…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Arautermarauterm.com.brHQ: Cachoeirinha, BrazilReported employees: 51-200 | Cachoeirinha, Brazil | 51-200 | Exact match | 43 contacts → |
“A Arauterm iniciou suas atividades em 11 de maio de 1988 na cidade de Cachoeirinha.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | GDC Group LTDgdcgroup.co.uk HQ: Southampton, United KingdomReported employees: 51-200 | Southampton, United Kingdom | 51-200 | Exact match | 43 contacts → |
“GDC is the holding company for some of the best known brands in the heating industry, including Dimplex, Creda NOBO, Faber, Robinson Willey, Valor, Wonderfire, Glen, Unidare…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Hubbell Heatershubbellheaters.com HQ: Stratford, CT, United StatesReported employees: 51-200 | Stratford, CT, United States | 51-200 | Exact match | 42 contacts → |
“Hubbell delivers standard and custom water heating solutions across commercial, marine/offshore, foodservice, and industrial spaces.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Lochinvar, UKlochinvar.ltd.uk HQ: Banbury, United KingdomReported employees: 11-50 | Banbury, United Kingdom | 11-50 | Exact match | 40 contacts → |
“Lochinvar designs, manufactures and distributes a comprehensive range of high efficiency gas fired water heaters and boilers for commercial and industrial applications.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Water Heaters Only, INCwaterheatersonly.com HQ: Grass Valley, CA, United StatesReported employees: 51-200 | Grass Valley, CA, United States | 51-200 | Exact match | 40 contacts → |
“Water Heaters Only, Inc specializes in the repair and replacement of water heaters.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 251 company matches
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Water heater manufacturers: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
245 records in the displayed employee bands.
6 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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: September 19, 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 ↗
Water heater manufacturers by location
3 lists · largest firstEvery Water heater manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for water heater manufacturers?
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 water heater manufacturers did RevenueBase find worldwide?
The saved snapshot records 251 matching company records, 25,966 tracked contacts and 4,144 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: September 19, 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 water heater manufacturers worldwide. Snapshot: September 19, 2026. https://revenuebase.ai/companies/browse/water-heater-manufacturers.
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 water heater manufacturers worldwide
RevenueBase records 251 matching company records for water heater manufacturers worldwide, with 25,966 tracked contacts and 4,144 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: September 19, 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 water heater manufacturers 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 | A. O. Smith Corporationaosmith.com HQ: Milwaukee, WI, United StatesReported employees: 10001+ | Milwaukee, WI, United States | 10001+ | Exact match | 15,266 contacts → |
“Celebrating its 150th year of business, A.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Rheem Manufacturing Companyrheem.com HQ: Atlanta, GA, United StatesReported employees: 10001+ | Atlanta, GA, United States | 10001+ | Exact match | 3,410 contacts → |
“For 100 years, Rheem has stood as a trusted partner for residential and commercial innovations.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Lorenzetti S Alorenzetti.com.br HQ: Sao Paulo, BrazilReported employees: 1,001-5,000 | Sao Paulo, Brazil | 1,001-5,000 | Exact match | 2,050 contacts → |
“Com uma trajetória marcada por inovação, pioneirismo e transformação, a Lorenzetti completa 100 anos em 2023.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Bradford Whitebradfordwhitecorporation.com HQ: Ambler, PA, United StatesReported employees: 1,001-5,000 | Ambler, PA, United States | 1,001-5,000 | Exact match | 689 contacts → |
“Bradford White Corporation is an American-owned, full-line manufacturer of residential, commercial, and industrial products for water heating, space heating, combination heating…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Rinnai America Corporationrinnai.us HQ: Peachtree City, GA, United StatesReported employees: 201-500 | Peachtree City, GA, United States | 201-500 | Exact match | 513 contacts → |
“Rinnai America Corporation, a subsidiary of Rinnai Corporation in Nagoya, Japan, was established in 1974 and is headquartered in Peachtree City, Georgia.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Lochinvar, LLClochinvar.com HQ: Lebanon, TN, IndiaReported employees: 201-500 | Lebanon, TN, India | 201-500 | Exact match | 340 contacts → |
“Lochinvar, LLC is a leading manufacturer of high-efficiency water heaters, boilers, pool heaters and custom pre-piped packaged systems.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Raypakraypak.com HQ: Oxnard, United StatesReported employees: 501-1,000 | Oxnard, United States | 501-1,000 | Exact match | 242 contacts → |
“For over 70 years, Raypak has been the world's leading manufacturer of copper finned boilers and heaters.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Empire Comfort Systemsempirecomfort.com HQ: Belleville, IL, United StatesReported employees: 201-500 | Belleville, IL, United States | 201-500 | Exact match | 126 contacts → |
“Empire Comfort Systems: A Company Perspective · Family Owned Since 1932 · A Full Line of Gas-Fired Products for the Independent Dealer · Made in the USA Empire – a Family-Owned…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Laars Heating Systemslaars.com HQ: Rochester, NH, United StatesReported employees: 201-500 | Rochester, NH, United States | 201-500 | Exact match | 126 contacts → |
“Founded in 1948, LAARS serves a diverse base of customers located in many countries across the globe.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | ECR Internationalecrinternational.com HQ: Utica, United StatesReported employees: 201-500 | Utica, United States | 201-500 | Exact match | 126 contacts → |
“ECR International, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | PVI Industriespvi.com HQ: Fort Worth, TX, United StatesReported employees: 201-500 | Fort Worth, TX, United States | 201-500 | Exact match | 91 contacts → |
“PVI specializes in medium to large ASME water heaters fabricated from AquaPLEX® duplex stainless steel for commercial and institutional installations such as schools, hotels…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Noritz Americanoritz.com HQ: Fountain Valley, CA, United StatesReported employees: 51-200 | Fountain Valley, CA, United States | 51-200 | Exact match | 78 contacts → |
“Noritz America Corporation, a subsidiary of Noritz Japan, has corporate offices in Fountain Valley, Calif, and Atlanta, offering a full line of tankless water heaters to meet the…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HTP Comfort Solutionshtproducts.com HQ: New Bedford, MA, United StatesReported employees: 51-200 | New Bedford, MA, United States | 51-200 | Exact match | 76 contacts → |
“Established in 1974, HTP Comfort Solutions LLC is a full-fledged manufacturer on the cutting edge of energy efficient space and water heating technology.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Heatec, An Astec Brandastecindustries.com HQ: Chattanooga, TN, United StatesReported employees: 201-500 | Chattanooga, TN, United States | 201-500 | Exact match | 71 contacts → |
“Manufacturer of heaters, tanks and related products for a wide variety of industries.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | OGI Process Equipmentogipe.com HQ: Sand Springs, OK, United StatesReported employees: 51-200 | Sand Springs, OK, United States | 51-200 | Exact match | 56 contacts → |
“OGI (Oil, Gas, and Industrial) Process Equipment designs, manufactures, sells, and services TERI brand indirect fired water bath heaters and QuikWater® brand direct fired water…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Gledhill Groupgledhill.net HQ: Blackpool, United KingdomReported employees: 201-500 | Blackpool, United Kingdom | 201-500 | Exact match | 53 contacts → |
“Gledhill is a leading UK manufacturer of hot water and heating solutions.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Eemax, Inc. A Rheem Companyeemax.com HQ: Waterbury, CT, United StatesReported employees: 51-200 | Waterbury, CT, United States | 51-200 | Exact match | 52 contacts → |
“Eemax is leading the evolution of hot water with cutting-edge technology that provides consistent hot water.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Triangle Tubetriangletube.com HQ: West Deptford Township, NJ, United StatesReported employees: 11-50 | West Deptford Township, NJ, United States | 11-50 | Exact match | 47 contacts → |
“Triangle Tube heating and hot water products have created comfort to families for over 60 years.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Hamworthy Heating LTDhamworthy-heating.com HQ: Hull, United KingdomReported employees: 51-200 | Hull, United Kingdom | 51-200 | Exact match | 45 contacts → |
“Hamworthy Heating is a British manufacturer and supplier of commercial heating and hot water products.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Vokera By Riellovokera.co.uk HQ: Hertfordshire, United KingdomReported employees: 11-50 | Hertfordshire, United Kingdom | 11-50 | Exact match | 45 contacts → |
“For over 40 years, Vokèra has been a trusted name in home heating across the UK and Ireland, delivering reliable, energy efficient solutions for domestic and light commercial…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Arautermarauterm.com.br HQ: Cachoeirinha, BrazilReported employees: 51-200 | Cachoeirinha, Brazil | 51-200 | Exact match | 43 contacts → |
“A Arauterm iniciou suas atividades em 11 de maio de 1988 na cidade de Cachoeirinha.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | GDC Group LTDgdcgroup.co.uk HQ: Southampton, United KingdomReported employees: 51-200 | Southampton, United Kingdom | 51-200 | Exact match | 43 contacts → |
“GDC is the holding company for some of the best known brands in the heating industry, including Dimplex, Creda NOBO, Faber, Robinson Willey, Valor, Wonderfire, Glen, Unidare…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Hubbell Heatershubbellheaters.com HQ: Stratford, CT, United StatesReported employees: 51-200 | Stratford, CT, United States | 51-200 | Exact match | 42 contacts → |
“Hubbell delivers standard and custom water heating solutions across commercial, marine/offshore, foodservice, and industrial spaces.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Lochinvar, UKlochinvar.ltd.uk HQ: Banbury, United KingdomReported employees: 11-50 | Banbury, United Kingdom | 11-50 | Exact match | 40 contacts → |
“Lochinvar designs, manufactures and distributes a comprehensive range of high efficiency gas fired water heaters and boilers for commercial and industrial applications.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Water Heaters Only, INCwaterheatersonly.com HQ: Grass Valley, CA, United StatesReported employees: 51-200 | Grass Valley, CA, United States | 51-200 | Exact match | 40 contacts → |
“Water Heaters Only, Inc specializes in the repair and replacement of water heaters.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 251 company matches
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Water heater manufacturers: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
245 records in the displayed employee bands.
6 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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: September 19, 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 ↗
Water heater manufacturers by location
3 lists · largest firstEvery Water heater manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for water heater manufacturers?
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 water heater manufacturers did RevenueBase find worldwide?
The saved snapshot records 251 matching company records, 25,966 tracked contacts and 4,144 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: September 19, 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 water heater manufacturers worldwide. Snapshot: September 19, 2026. https://revenuebase.ai/companies/browse/water-heater-manufacturers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗