Company lists · Data refreshed November 2026

Top 25 Hvac efficiency upgrade providers worldwide

RevenueBase identified 5,944 company matches for hvac efficiency upgrade providers worldwide as of November 2026 and tracks 40,426 professional contacts across them, including 9,954 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for hvac efficiency upgrade providers 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 hvac efficiency upgrade providers 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
5,944Companies
40,426Contacts tracked
9,954Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest hvac efficiency upgrade providers worldwide

Ranked by team size
Top 25 of 5,944 company matches for hvac efficiency upgrade providers 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 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
2Exact 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
3Exact matchGaithersburg, MD, United StatesHQ recorded Nov 6, 2026201-500333 contacts →

Exact match

“Boland is the leading commercial HVAC systems, services, and building energy solutions provider in the DC metro area.”

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 matchNewark, NJ, United StatesHQ recorded Nov 6, 2026201-500250 contacts →

Exact match

“Lime Energy is building a new energy future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchColumbus, TX, United StatesHQ recorded Nov 6, 20261,001-5,000249 contacts →

Exact match

“Airtron has developed itself into one of the leading heating, ventilation, and air conditioning (HVAC) providers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact 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
8Exact matchOrlando, FL, United StatesHQ recorded Nov 6, 2026201-500223 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact 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
10Exact matchSolaize, FranceHQ recorded Nov 6, 2026n/a217 contacts →

Exact match

“Eurocombles, isoler vos combles, garages et caves à seulement 1€!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchGreenwood Village, CO, United StatesHQ recorded Nov 6, 2026201-500208 contacts →

Exact match

“Haynes Mechanical Systems has been keeping commercial buildings running strong since 1968.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLaurel, CA, United StatesHQ recorded Nov 6, 2026501-1,000175 contacts →

Exact match

“AMS is one of the nation’s leading providers of commercial heating, ventilation, and air conditioning (HVAC) maintenance, repair, replacement, and new equipment installation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact 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
14Exact 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
15Exact matchPensacola, FL, United StatesHQ recorded Nov 6, 2026201-500159 contacts →

Exact match

“Engineered Cooling Services is the Southeast’s leading energy and HVAC services company headquartered in Pensacola, FL with local offices in Mobile, Montgomery, Birmingham…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchStockholm, SwedenHQ recorded Nov 6, 2026201-500137 contacts →

Exact match

“Våra kunder har de energieffektivaste fastigheterna!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMilford, OH, United StatesHQ recorded Nov 6, 202651-200134 contacts →

Exact match

“We are a global provider of energy efficiency solutions for commercial buildings with five business offerings: HVAC Testing, Adjusting & Balancing, Intelli-Hood® Kitchen…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchIthaca, NY, United StatesHQ recorded Nov 6, 202651-200120 contacts →

Exact match

“PSD is an energy efficiency services and technology company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLombard, IL, United StatesHQ recorded Nov 6, 202651-200115 contacts →

Exact match

“Chicago's Facilities Management Company Midwest Mechanical is a commercial HVAC services and facility management company focused on energy efficiency for building owners and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNorth Little Rock, MS, United StatesHQ recorded Nov 6, 2026201-500114 contacts →

Exact match

“Our goal at Powers is to make your buildings productive, comfortable, and efficient to operate.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchUnited StatesHQ recorded Nov 6, 202651-200110 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchDouglasville, GA, United StatesHQ recorded Nov 6, 202651-200107 contacts →

Exact match

“Exceeding expectations since 1971, Seasons 4 has been providing custom HVAC systems for supermarkets, schools, commercial and office buildings, government facilities, and other…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchCramlington, United KingdomHQ recorded Nov 6, 202651-200106 contacts →

Exact match

“Daikin Applied (UK) Ltd (formerly McQuay UK Ltd) is the market leader in energy-efficient end-to-end HVAC solutions, including AHU and chiller products, heat pumps, service and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchVienna, AustriaHQ recorded Nov 6, 2026201-50099 contacts →

Exact match

“Vaillant Österreich bietet #energiesparende und #umweltschonende Systeme für #Heizen,#Kühlen und #Warmwasser.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchCardiff, United KingdomHQ recorded Nov 6, 202651-20097 contacts →

Exact match

“At City Energy Network, we help households across the UK improve energy efficiency, cut bills, and reduce carbon emissions.”

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

Showing 25 of 5,944 hvac efficiency upgrade providers worldwide

See the full list, filter by size, metro and specialty, and access 9,954 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Hvac efficiency upgrade providers worldwide at a glance

As of Nov 6, 2026
24.6%Verified-email coverage
6.8Average contacts per company
1-10Median size (employees)
0.7%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
3,121
11-50
2,147
51-200
467
201-500
70
501-1,000
16
1,001-5,000
6
5,001-10,000
4
10001+
6

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 hvac efficiency upgrade providers are linked below.
What qualifies
Company records worldwide whose business descriptions match “hvac efficiency upgrade providers” 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 9,954 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.

Hvac efficiency upgrade providers by location

17 lists · largest first

Every Hvac efficiency upgrade providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “hvac efficiency upgrade providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hvac efficiency upgrade providers are there worldwide?

RevenueBase identified 5,944 company matches for hvac efficiency upgrade providers 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?

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

Which country has the most hvac efficiency upgrade providers?

The United States leads with 3,345 companies, followed by Canada (366) and France (335). Every hvac efficiency upgrade providers list by country and city is linked on this page.

Which city has the most hvac efficiency upgrade providers?

London leads with 40 company records, followed by New York (40) and Houston (36).

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 9,954 professional contacts with verified work emails tracked across these 5,944 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.

Ready to reach these companies? Verified emails and direct dials for all 5,944 hvac efficiency upgrade providers worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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.