Company lists · Data refreshed September 2026
Top 25 Residential geothermal installers worldwide
RevenueBase identified 1,815 company matches for residential geothermal installers worldwide as of September 2026 and tracks 11,257 professional contacts across them, including 3,610 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for residential geothermal installers 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 September 21, 2026. Country and city lists for residential geothermal installers 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 residential geothermal installers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 600 contacts → | ||||
Exact match “Aira is the next generation home energy champion.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 356 contacts → | ||||
Exact match “At HomeWorks Energy, our mission is simple, literally: Energy Efficiency, Simplified.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 224 contacts → | ||||
Exact match “WaterFurnace International, Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 211 contacts → | ||||
Exact match “De energietransitie is één van de grootste maatschappelijke opgaven, maar wij begrijpen dat jouw wooncomfort net zo belangrijk is.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 143 contacts → | ||||
Exact match “The UK’s heating system is stuck in the past, costing people and the planet too much.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 136 contacts → | ||||
Exact match “WIR SORGEN FÜR IHR WOHLBEFINDEN.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 132 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 118 contacts → | ||||
Exact match “Dandelion Energy is the nation’s leading residential geothermal provider, on a mission to make the world’s most efficient heating and cooling technology accessible to everyone.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 110 contacts → | ||||
Exact match “At ENCON, we take care of people.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 108 contacts → | ||||
Exact match “Brightcore Energy is a leading renewable energy solutions provider serving commercial, institutional, and government clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 107 contacts → | ||||
Exact match “Qvantum offers heat pumps for the next generation heating and cooling technologies that enables the decarbonization of our cities.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 89 contacts → | ||||
Exact match “CASA Mechanical is owned and operated by the W.G.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 87 contacts → | ||||
Exact match “Vaillant Österreich bietet #energiesparende und #umweltschonende Systeme für #Heizen,#Kühlen und #Warmwasser.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 84 contacts → | ||||
Exact match “Wir bei Vamo haben es uns zur Mission gemacht grünes, günstiges Heizen mit Wärmepumpen unkompliziert und für jedermann möglich sowie bezahlbar zu machen.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 69 contacts → | ||||
Exact match “Energy Machines is a leading provider of integrated energy systems that decarbonize heating and cooling while reducing operating costs for real estate owners, municipalities, and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 68 contacts → | ||||
Exact match “Founded in 2002, Alpine is a team of forward-thinking innovators working to provide intelligent heating and cooling solutions to homeowners in a way that:* Leads Americans away…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 67 contacts → | ||||
Exact match “Gradient is transforming home comfort with innovative heat pump technology that reduces carbon emissions without compromising performance.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 65 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 60 contacts → | ||||
Exact match “Rendesco is the UK’s leading clean energy tech developer and operator, focusing on the electrification of heat using heat pumps and heat networks to decarbonise Britain’s…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 60 contacts → | ||||
Exact match “Hello.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 60 contacts → | ||||
Exact match “Simply Green offers a wide range of options to help you get equipped with reliable, top-quality, high-efficiency heating and cooling systems.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 59 contacts → | ||||
Exact match “Jetson is on a mission to accelerate the transition of 100M homes across North America away from burning fossil fuels to sustainable energy use.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 53 contacts → | ||||
Exact match “When you turn to us for your homes' energy efficient upgrade, you can take comfort in knowing you've made the right choice for your Plumbing, Electrical, Solar or Heating and Air…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 52 contacts → | ||||
Exact match “We at Allied Well Drilling are a full service commercial and residential gethermal heating/cooling system installer, specializing in vertically drilled closed loop systems.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 51 contacts → | ||||
Exact match “For all business inquiries, contact the Geosource team at info@geosourceenergy.com- Devoted to the pursuit of innovation and excellence as a leading geoexchange specialist, we are…” Recorded in the RevenueBase company graph · Sep 21, 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 “residential geothermal installers”. 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 1,815 residential geothermal installers worldwide
See the full list, filter by size, metro and specialty, and access 3,610 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Residential geothermal installers worldwide at a glance
As of Sep 21, 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 residential geothermal installers are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “residential geothermal installers” 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 3,610 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 September 21, 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.
Residential geothermal installers by location
10 lists · largest firstEvery Residential geothermal installers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Residential geothermal installers based in the United States398
- Residential geothermal installers based in France203
- Residential geothermal installers based in the United Kingdom187
- Residential geothermal installers based in the Netherlands131
- Residential geothermal installers based in Germany104
- Residential geothermal installers based in Canada74
- Residential geothermal installers based in Italy48
- Residential geothermal installers based in Belgium47
- Residential geothermal installers based in Australia36
- Residential geothermal installers based in Sweden31
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 “residential geothermal installers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many residential geothermal installers are there worldwide?
RevenueBase identified 1,815 company matches for residential geothermal installers worldwide as of September 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?
AIRA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most residential geothermal installers?
The United States leads with 398 companies, followed by France (203) and the United Kingdom (187). Every residential geothermal installers list by country and city is linked on this page.
Which city has the most residential geothermal installers?
London leads with 16 company records, followed by Berlin (8) and Toronto (8).
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 3,610 professional contacts with verified work emails tracked across these 1,815 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 September 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,815 residential geothermal installers worldwide. Start with a free account, no credit card.
Download this list →Related lists
Browse the directory
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 residential geothermal installers worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,815 matching company records for residential geothermal installers worldwide, with 11,257 tracked contacts and 3,610 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 21, 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 residential geothermal installers 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 |  AIRAairahome.comHQ: Stockholm, SwedenReported employees: 201-500 | Stockholm, Sweden | 201-500 | Exact match | 600 contacts → |
“Aira is the next generation home energy champion.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Homeworks Energy, INChomeworksenergy.com HQ: Medford, MA, United StatesReported employees: 201-500 | Medford, MA, United States | 201-500 | Exact match | 356 contacts → |
“At HomeWorks Energy, our mission is simple, literally: Energy Efficiency, Simplified.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Waterfurnace Internationalwaterfurnace.com HQ: Fort Wayne, IN, United StatesReported employees: 201-500 | Fort Wayne, IN, United States | 201-500 | Exact match | 224 contacts → |
“WaterFurnace International, Inc.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Saman Groepsamangroep.nl HQ: Zierikzee, NetherlandsReported employees: 201-500 | Zierikzee, Netherlands | 201-500 | Exact match | 211 contacts → |
“De energietransitie is één van de grootste maatschappelijke opgaven, maar wij begrijpen dat jouw wooncomfort net zo belangrijk is.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | KENSAkensa.co.uk HQ: Truro, United KingdomReported employees: 51-200 | Truro, United Kingdom | 51-200 | Exact match | 143 contacts → |
“The UK’s heating system is stuck in the past, costing people and the planet too much.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  IDM Energiesysteme Gmbhidm-energie.atHQ: Matrei, AustriaReported employees: 501-1,000 | Matrei, Austria | 501-1,000 | Exact match | 136 contacts → |
“WIR SORGEN FÜR IHR WOHLBEFINDEN.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Vitaclimvitaclim.comHQ: Montpellier, FranceReported employees: 201-500 | Montpellier, France | 201-500 | Exact match | 132 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 8 | Dandelion Energydandelionenergy.com HQ: Mount Kisco, NY, United StatesReported employees: 51-200 | Mount Kisco, NY, United States | 51-200 | Exact match | 118 contacts → |
“Dandelion Energy is the nation’s leading residential geothermal provider, on a mission to make the world’s most efficient heating and cooling technology accessible to everyone.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Encon Heating & A Cgoencon.com HQ: Stratford, CT, United StatesReported employees: 201-500 | Stratford, CT, United States | 201-500 | Exact match | 110 contacts → |
“At ENCON, we take care of people.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Brightcore Energybrightcoreenergy.comHQ: Armonk, NY, United StatesReported employees: 51-200 | Armonk, NY, United States | 51-200 | Exact match | 108 contacts → |
“Brightcore Energy is a leading renewable energy solutions provider serving commercial, institutional, and government clients.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Qvantum Sverigeqvantum.com HQ: Åstorp, SwedenReported employees: 201-500 | Åstorp, Sweden | 201-500 | Exact match | 107 contacts → |
“Qvantum offers heat pumps for the next generation heating and cooling technologies that enables the decarbonization of our cities.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Casa Mechanical Servicescasamechanical.comHQ: Round Rock, TX, United StatesReported employees: 51-200 | Round Rock, TX, United States | 51-200 | Exact match | 89 contacts → |
“CASA Mechanical is owned and operated by the W.G.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Vaillant Österreichvaillant.at HQ: Wien, AustriaReported employees: 201-500 | Wien, Austria | 201-500 | Exact match | 87 contacts → |
“Vaillant Österreich bietet #energiesparende und #umweltschonende Systeme für #Heizen,#Kühlen und #Warmwasser.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | VAMOvamo-energy.com HQ: Cologne, GermanyReported employees: 51-200 | Cologne, Germany | 51-200 | Exact match | 84 contacts → |
“Wir bei Vamo haben es uns zur Mission gemacht grünes, günstiges Heizen mit Wärmepumpen unkompliziert und für jedermann möglich sowie bezahlbar zu machen.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Energy Machinesenergymachines.com HQ: Copenhagen, DenmarkReported employees: 51-200 | Copenhagen, Denmark | 51-200 | Exact match | 69 contacts → |
“Energy Machines is a leading provider of integrated energy systems that decarbonize heating and cooling while reducing operating costs for real estate owners, municipalities, and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Alpine Home AIRalpinehomeair.comHQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 68 contacts → |
“Founded in 2002, Alpine is a team of forward-thinking innovators working to provide intelligent heating and cooling solutions to homeowners in a way that:* Leads Americans away…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Gradientgradientcomfort.com HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 67 contacts → |
“Gradient is transforming home comfort with innovative heat pump technology that reduces carbon emissions without compromising performance.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Roscoe Brown, INCroscoebrown.com HQ: Murfreesboro, TN, United StatesReported employees: 51-200 | Murfreesboro, TN, United States | 51-200 | Exact match | 65 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 19 |  Rendescorendesco.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 60 contacts → |
“Rendesco is the UK’s leading clean energy tech developer and operator, focusing on the electrification of heat using heat pumps and heat networks to decarbonise Britain’s…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Scis Groupscisltd.co.uk HQ: Fareham, United KingdomReported employees: 51-200 | Fareham, United Kingdom | 51-200 | Exact match | 60 contacts → |
“Hello.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Simply Green Home Services INCmysimplygreen.comHQ: Toronto, ON, CanadaReported employees: 201-500 | Toronto, ON, Canada | 201-500 | Exact match | 60 contacts → |
“Simply Green offers a wide range of options to help you get equipped with reliable, top-quality, high-efficiency heating and cooling systems.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Jetsonjetsonhome.com HQ: North Vancouver, BC, CanadaReported employees: 201-500 | North Vancouver, BC, Canada | 201-500 | Exact match | 59 contacts → |
“Jetson is on a mission to accelerate the transition of 100M homes across North America away from burning fossil fuels to sustainable energy use.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Sierra Pacific Home & Comfort, INCsierrapacifichome.com HQ: Rancho Cordova, CA, United StatesReported employees: 51-200 | Rancho Cordova, CA, United States | 51-200 | Exact match | 53 contacts → |
“When you turn to us for your homes' energy efficient upgrade, you can take comfort in knowing you've made the right choice for your Plumbing, Electrical, Solar or Heating and Air…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Allied Well Drillingalliedwells.comHQ: Laurel, MD, United StatesReported employees: 51-200 | Laurel, MD, United States | 51-200 | Exact match | 52 contacts → |
“We at Allied Well Drilling are a full service commercial and residential gethermal heating/cooling system installer, specializing in vertically drilled closed loop systems.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Geosource Energy INCgeosourceenergy.com HQ: Ancaster, ON, CanadaReported employees: 51-200 | Ancaster, ON, Canada | 51-200 | Exact match | 51 contacts → |
“For all business inquiries, contact the Geosource team at info@geosourceenergy.com- Devoted to the pursuit of innovation and excellence as a leading geoexchange specialist, we are…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,815 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Residential geothermal installers: dataset insights
September 21, 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
1,788 records in the displayed employee bands.
27 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 1,815 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: September 21, 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 ↗
Residential geothermal installers by location
10 lists · largest firstEvery Residential geothermal installers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Residential geothermal installers based in the United States398
- Residential geothermal installers based in France203
- Residential geothermal installers based in the United Kingdom187
- Residential geothermal installers based in the Netherlands131
- Residential geothermal installers based in Germany104
- Residential geothermal installers based in Canada74
- Residential geothermal installers based in Italy48
- Residential geothermal installers based in Belgium47
- Residential geothermal installers based in Australia36
- Residential geothermal installers based in Sweden31
Questions about this company list
What does Exact match mean for residential geothermal installers?
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 residential geothermal installers did RevenueBase find worldwide?
The saved snapshot records 1,815 matching company records, 11,257 tracked contacts and 3,610 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 21, 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 residential geothermal installers worldwide. Snapshot: September 21, 2026. https://revenuebase.ai/companies/browse/residential-geothermal-installers.
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 residential geothermal installers worldwide
RevenueBase records 1,815 matching company records for residential geothermal installers worldwide, with 11,257 tracked contacts and 3,610 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 21, 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 residential geothermal installers 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 | AIRAairahome.com HQ: Stockholm, SwedenReported employees: 201-500 | Stockholm, Sweden | 201-500 | Exact match | 600 contacts → |
“Aira is the next generation home energy champion.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Homeworks Energy, INChomeworksenergy.com HQ: Medford, MA, United StatesReported employees: 201-500 | Medford, MA, United States | 201-500 | Exact match | 356 contacts → |
“At HomeWorks Energy, our mission is simple, literally: Energy Efficiency, Simplified.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Waterfurnace Internationalwaterfurnace.com HQ: Fort Wayne, IN, United StatesReported employees: 201-500 | Fort Wayne, IN, United States | 201-500 | Exact match | 224 contacts → |
“WaterFurnace International, Inc.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Saman Groepsamangroep.nl HQ: Zierikzee, NetherlandsReported employees: 201-500 | Zierikzee, Netherlands | 201-500 | Exact match | 211 contacts → |
“De energietransitie is één van de grootste maatschappelijke opgaven, maar wij begrijpen dat jouw wooncomfort net zo belangrijk is.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | KENSAkensa.co.uk HQ: Truro, United KingdomReported employees: 51-200 | Truro, United Kingdom | 51-200 | Exact match | 143 contacts → |
“The UK’s heating system is stuck in the past, costing people and the planet too much.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | IDM Energiesysteme Gmbhidm-energie.at HQ: Matrei, AustriaReported employees: 501-1,000 | Matrei, Austria | 501-1,000 | Exact match | 136 contacts → |
“WIR SORGEN FÜR IHR WOHLBEFINDEN.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Vitaclimvitaclim.com HQ: Montpellier, FranceReported employees: 201-500 | Montpellier, France | 201-500 | Exact match | 132 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 8 | Dandelion Energydandelionenergy.com HQ: Mount Kisco, NY, United StatesReported employees: 51-200 | Mount Kisco, NY, United States | 51-200 | Exact match | 118 contacts → |
“Dandelion Energy is the nation’s leading residential geothermal provider, on a mission to make the world’s most efficient heating and cooling technology accessible to everyone.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Encon Heating & A Cgoencon.com HQ: Stratford, CT, United StatesReported employees: 201-500 | Stratford, CT, United States | 201-500 | Exact match | 110 contacts → |
“At ENCON, we take care of people.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Brightcore Energybrightcoreenergy.com HQ: Armonk, NY, United StatesReported employees: 51-200 | Armonk, NY, United States | 51-200 | Exact match | 108 contacts → |
“Brightcore Energy is a leading renewable energy solutions provider serving commercial, institutional, and government clients.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Qvantum Sverigeqvantum.com HQ: Åstorp, SwedenReported employees: 201-500 | Åstorp, Sweden | 201-500 | Exact match | 107 contacts → |
“Qvantum offers heat pumps for the next generation heating and cooling technologies that enables the decarbonization of our cities.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Casa Mechanical Servicescasamechanical.com HQ: Round Rock, TX, United StatesReported employees: 51-200 | Round Rock, TX, United States | 51-200 | Exact match | 89 contacts → |
“CASA Mechanical is owned and operated by the W.G.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Vaillant Österreichvaillant.at HQ: Wien, AustriaReported employees: 201-500 | Wien, Austria | 201-500 | Exact match | 87 contacts → |
“Vaillant Österreich bietet #energiesparende und #umweltschonende Systeme für #Heizen,#Kühlen und #Warmwasser.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | VAMOvamo-energy.com HQ: Cologne, GermanyReported employees: 51-200 | Cologne, Germany | 51-200 | Exact match | 84 contacts → |
“Wir bei Vamo haben es uns zur Mission gemacht grünes, günstiges Heizen mit Wärmepumpen unkompliziert und für jedermann möglich sowie bezahlbar zu machen.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Energy Machinesenergymachines.com HQ: Copenhagen, DenmarkReported employees: 51-200 | Copenhagen, Denmark | 51-200 | Exact match | 69 contacts → |
“Energy Machines is a leading provider of integrated energy systems that decarbonize heating and cooling while reducing operating costs for real estate owners, municipalities, and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Alpine Home AIRalpinehomeair.com HQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 68 contacts → |
“Founded in 2002, Alpine is a team of forward-thinking innovators working to provide intelligent heating and cooling solutions to homeowners in a way that:* Leads Americans away…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Gradientgradientcomfort.com HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 67 contacts → |
“Gradient is transforming home comfort with innovative heat pump technology that reduces carbon emissions without compromising performance.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Roscoe Brown, INCroscoebrown.com HQ: Murfreesboro, TN, United StatesReported employees: 51-200 | Murfreesboro, TN, United States | 51-200 | Exact match | 65 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 19 | Rendescorendesco.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 60 contacts → |
“Rendesco is the UK’s leading clean energy tech developer and operator, focusing on the electrification of heat using heat pumps and heat networks to decarbonise Britain’s…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Scis Groupscisltd.co.uk HQ: Fareham, United KingdomReported employees: 51-200 | Fareham, United Kingdom | 51-200 | Exact match | 60 contacts → |
“Hello.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Simply Green Home Services INCmysimplygreen.com HQ: Toronto, ON, CanadaReported employees: 201-500 | Toronto, ON, Canada | 201-500 | Exact match | 60 contacts → |
“Simply Green offers a wide range of options to help you get equipped with reliable, top-quality, high-efficiency heating and cooling systems.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Jetsonjetsonhome.com HQ: North Vancouver, BC, CanadaReported employees: 201-500 | North Vancouver, BC, Canada | 201-500 | Exact match | 59 contacts → |
“Jetson is on a mission to accelerate the transition of 100M homes across North America away from burning fossil fuels to sustainable energy use.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Sierra Pacific Home & Comfort, INCsierrapacifichome.com HQ: Rancho Cordova, CA, United StatesReported employees: 51-200 | Rancho Cordova, CA, United States | 51-200 | Exact match | 53 contacts → |
“When you turn to us for your homes' energy efficient upgrade, you can take comfort in knowing you've made the right choice for your Plumbing, Electrical, Solar or Heating and Air…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Allied Well Drillingalliedwells.com HQ: Laurel, MD, United StatesReported employees: 51-200 | Laurel, MD, United States | 51-200 | Exact match | 52 contacts → |
“We at Allied Well Drilling are a full service commercial and residential gethermal heating/cooling system installer, specializing in vertically drilled closed loop systems.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Geosource Energy INCgeosourceenergy.com HQ: Ancaster, ON, CanadaReported employees: 51-200 | Ancaster, ON, Canada | 51-200 | Exact match | 51 contacts → |
“For all business inquiries, contact the Geosource team at info@geosourceenergy.com- Devoted to the pursuit of innovation and excellence as a leading geoexchange specialist, we are…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,815 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Residential geothermal installers: dataset insights
September 21, 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
1,788 records in the displayed employee bands.
27 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 1,815 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: September 21, 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 ↗
Residential geothermal installers by location
10 lists · largest firstEvery Residential geothermal installers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Residential geothermal installers based in the United States398
- Residential geothermal installers based in France203
- Residential geothermal installers based in the United Kingdom187
- Residential geothermal installers based in the Netherlands131
- Residential geothermal installers based in Germany104
- Residential geothermal installers based in Canada74
- Residential geothermal installers based in Italy48
- Residential geothermal installers based in Belgium47
- Residential geothermal installers based in Australia36
- Residential geothermal installers based in Sweden31
Questions about this company list
What does Exact match mean for residential geothermal installers?
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 residential geothermal installers did RevenueBase find worldwide?
The saved snapshot records 1,815 matching company records, 11,257 tracked contacts and 3,610 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 21, 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 residential geothermal installers worldwide. Snapshot: September 21, 2026. https://revenuebase.ai/companies/browse/residential-geothermal-installers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗