Company lists · Data refreshed November 2026

Top 25 Weatherization service companies worldwide

RevenueBase identified 1,895 company matches for weatherization service companies worldwide as of November 2026 and tracks 13,980 professional contacts across them, including 3,366 with verified work emails. The United States is the largest market and Austin the largest hub.

This list covers company matches for weatherization service companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for weatherization service companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
1,895Companies
13,980Contacts tracked
3,366Verified emails
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The 25 largest weatherization service companies worldwide

Ranked by team size
Top 25 of 1,895 company matches for weatherization service companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLevallois-perret, FranceHQ recorded Nov 6, 20261,001-5,0001,054 contacts →

Exact match

“A major player in the energy transition and leader in home services, PROXISERVE provides its customers with innovative solutions enabling them to reduce their energy consumption…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLelystad, NetherlandsHQ recorded Nov 6, 20261,001-5,000813 contacts →

Exact match

“Sinds het ontstaan in 1947 is Feenstra marktleider in installatietechniek met een nationale dekking.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMedford, MA, United StatesHQ recorded Nov 6, 2026201-500381 contacts →

Exact match

“At HomeWorks Energy, our mission is simple, literally: Energy Efficiency, Simplified.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMadrid, SpainHQ recorded Nov 6, 2026501-1,000311 contacts →

Exact match

“Grupo Remica se crea en 1984 como empresa de instalación y mantenimiento de sistemas de calefacción, climatización y ACS.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchKennesaw, GA, United StatesHQ recorded Nov 6, 2026201-500245 contacts →

Exact match

“Since 1978, Reliable Heating & Air has been serving all of Metro Atlanta's communities offering heating, cooling, plumbing and electrical services, indoor air quality, duct…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMoncton, BC, CanadaHQ recorded Nov 6, 2026501-1,000218 contacts →

Exact match

“Greenfoot Energy Solutions was established in 2014 by a group of energy experts dedicated to improving energy efficiency in Atlantic Canada.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchLynnwood, WA, United StatesHQ recorded Nov 6, 2026n/a173 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchGastonia, NC, United StatesHQ recorded Nov 6, 2026201-500169 contacts →

Exact match

“For nearly a century, GSM Services has built its reputation on reliability, honesty, expert service, and high-quality workmanship.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLynnwood, WA, United StatesHQ recorded Nov 6, 2026201-500110 contacts →

Exact match

“There isn't one way to do things, but there is a right way.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchPort Chester, NY, United StatesHQ recorded Nov 6, 202651-20091 contacts →

Exact match

“For more than 100 years, Robison has been a staple in Westchester and Putnam counties, servicing nearly homes while earning an A+ from the Better Business Bureau.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchPhelps, NY, United StatesHQ recorded Nov 6, 202651-20089 contacts →

Exact match

“Halco is a highly accredited, national award-winning contractor that has been providing high-quality solutions to residential and commercial clients since 1984.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBeckenham, United KingdomHQ recorded Nov 6, 202651-20067 contacts →

Exact match

“We’re a leading nationwide property services company established in 2013.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMaitland, FL, United StatesHQ recorded Nov 6, 2026201-50066 contacts →

Exact match

“Since its founding, Florida Energy Water & Air has been on a mission to help its customers maximize comfort and enjoyment at home by improving a home’s energy efficiency, as well…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchWilmington, MA, United StatesHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“helps Massachusetts residents reduce energy consumption and costs, and increase comfort in their homes.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchRancho Cordova, CA, United StatesHQ recorded Nov 6, 202651-20062 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 · Nov 6, 2026 · View company records in RevenueBase
16Exact matchToronto, ON, CanadaHQ recorded Nov 6, 2026201-50061 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 · Nov 6, 2026 · View company records in RevenueBase
17Exact matchOshkosh, WI, United StatesHQ recorded Nov 6, 2026201-50055 contacts →

Exact match

“ECM is one of the nation’s leading providers of energy efficiency retrofit technologies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchAuckland, New ZealandHQ recorded Nov 6, 2026201-50055 contacts →

Exact match

“Brightr is here to make New Zealand lives better, one home at a time – and that’s got to be a positive thing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-20054 contacts →

Exact match

“Sealed is a climate tech company on a mission to stop home energy waste by enabling contractors to install more home weatherization and electrification projects and grow their…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchParis, FranceHQ recorded Nov 6, 202611-5053 contacts →

Exact match

“Ithaque a été créée avec la conviction que la rénovation énergétique des maisons est un enjeu central de la transition écologique.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBarking, United KingdomHQ recorded Nov 6, 202651-20053 contacts →

Exact match

“IZ Energy is pioneering a sustainable future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchWaterbury, CT, United StatesHQ recorded Nov 6, 2026201-50051 contacts →

Exact match

“Formerly BantamWesson, Valiant Energy Solutions is an energy solutions provider that enables homeowners and organizations to achieve significant energy and cost savings.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchOrlando, FL, United StatesHQ recorded Nov 6, 202651-20049 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMerrimack, NH, United StatesHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“Energy Efficient Investments, Inc.(EEI) is a New England Energy Service Company providing comprehensive building analysis and turn-key building solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchMinneapolis, MN, United StatesHQ recorded Nov 6, 202651-20047 contacts →

Exact match

“Modern Heating & Air Conditioning specializes in providing energy efficient mechanical services to keep energy costs under control and create more comfortable environments for…”

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

Showing 25 of 1,895 weatherization service companies worldwide

See the full list, filter by size, metro and specialty, and access 3,366 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Weatherization service companies worldwide at a glance

As of Nov 6, 2026
24.1%Verified-email coverage
7.4Average contacts per company
1-10Median size (employees)
0.6%Largest-city concentration · Austin
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
968
11-50
685
51-200
152
201-500
26
501-1,000
6
1,001-5,000
5
10001+
1

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for weatherization service companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “weatherization service companies” 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 3,366 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Weatherization service companies by location

5 lists · largest first

Every Weatherization service companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “weatherization service companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many weatherization service companies are there worldwide?

RevenueBase identified 1,895 company matches for weatherization service companies worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

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

Which country has the most weatherization service companies?

The United States leads with 855 companies, followed by France (257) and the United Kingdom (149). Every weatherization service companies list by country and city is linked on this page.

Which city has the most weatherization service companies?

Austin leads with 11 company records, followed by New York (11) and San Diego (11).

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 3,366 professional contacts with verified work emails tracked across these 1,895 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.