Company lists · Data refreshed November 2026

Top 25 Heating system design consultants worldwide

RevenueBase identified 14,438 company matches for heating system design consultants worldwide as of November 2026 and tracks 117,080 professional contacts across them, including 33,005 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for heating system design consultants 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 heating system design consultants 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
14,438Companies
117,080Contacts tracked
33,005Verified emails
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The 25 largest heating system design consultants worldwide

Ranked by team size
Top 25 of 14,438 company matches for heating system design consultants 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 matchAtlanta, NC, United StatesHQ recorded Nov 6, 20261,001-5,0001,143 contacts →

Exact match

“McKenney’s is the Southeast’s most trusted name in facility construction, operation and maintenance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLouisville, TN, United StatesHQ recorded Nov 6, 2026501-1,0001,049 contacts →

Exact match

“CMTA is part of Legence, a Nasdaq Listed company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWarwick, United KingdomHQ recorded Nov 6, 20261,001-5,000865 contacts →

Exact match

“We're leading the energy transition to zero carbon, by offering complete residential and commercial heating and hot water solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchEysins, SwitzerlandHQ recorded Nov 6, 20261,001-5,000823 contacts →

Exact match

“At IMI, our Climate Control sector designs intelligent hydronic solutions that optimise comfort, energy use, and system reliability, helping create smarter, greener, more…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchToronto, TX, CanadaHQ recorded Nov 6, 20261,001-5,000748 contacts →

Exact match

“Your success is our success.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchAlmere, NetherlandsHQ recorded Nov 6, 20261,001-5,000677 contacts →

Exact match

“When it comes to comfortable climate in buildings, we set the ultimate standards.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMainburg, GermanyHQ recorded Nov 6, 20261,001-5,000506 contacts →

Exact match

“As a leading supplier of heating and air handling systems, we are perfectly in tune with you.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSao Paulo, BrazilHQ recorded Nov 6, 2026501-1,000504 contacts →

Exact match

“Desde 1974, a Heating & Cooling atua no segmento de engenharia de instalação de Sistemas de Ar-Condicionado, Ventilação e Exaustão Mecânica, com mais de 2.500 projetos executados.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchGreensboro, TN, United StatesHQ recorded Nov 6, 20261,001-5,000469 contacts →

Exact match

“Since 1947, Hoffman & Hoffman, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLebanon, OH, United StatesHQ recorded Nov 6, 2026n/a461 contacts →

Exact match

“PE-Services provides engineering for your success.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBunschoten-spakenburg, United StatesHQ recorded Nov 6, 20261,001-5,000459 contacts →

Exact match

“Heinen & Hopman Engineering was founded in 1965 as a family business in the heart of Holland, Spakenburg.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSan Bonifacio, ItalyHQ recorded Nov 6, 20261,001-5,000442 contacts →

Exact match

“Feel Well.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchTonawanda, NY, United StatesHQ recorded Nov 6, 2026501-1,000420 contacts →

Exact match

“We are powered by the best people in the industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSan Jose, CA, United StatesHQ recorded Nov 6, 2026201-500364 contacts →

Exact match

“Whether building quality work environments, valuable relationships or community ties, Air Systems never cuts corners.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSan Jose, CA, United StatesHQ recorded Nov 6, 2026201-500350 contacts →

Exact match

“United Mechanical specializes in HVAC and Plumbing systems design, construction, retrofit, repair, and 24/7 emergency service for commercial and industrial properties throughout…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchWestminster, CO, United StatesHQ recorded Nov 6, 2026501-1,000349 contacts →

Exact match

“Looking for a new opportunity with a growing organization that shares your values?”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchHelsinki, FinlandHQ recorded Nov 6, 20261,001-5,000341 contacts →

Exact match

“We are Purmo Group, leader in sustainable indoor climate comfort solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBristol, United KingdomHQ recorded Nov 6, 2026201-500325 contacts →

Exact match

“Space Engineering Services is the UK’s leading provider of refrigeration, heating, ventilation and air conditioning services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBraeside, AustraliaHQ recorded Nov 6, 2026201-500323 contacts →

Exact match

“Following Rinnai's international origins dating back more than 100 years, Rinnai Australia was established 50 years ago and since then has been providing Australians with the best…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchPetersfield, United KingdomHQ recorded Nov 6, 20261,001-5,000307 contacts →

Exact match

“Since 1931 we have been harnessing the natural elements to provide healthy, comfortable and safe working and living conditions in buildings.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBurr Ridge, NC, United StatesHQ recorded Nov 6, 2026501-1,000299 contacts →

Exact match

“Weil-McLain® is a leading North American designer and manufacturer of hydronic comfort heating systems for residential, commercial and institutional buildings since 1881.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchNoida, IndiaHQ recorded Nov 6, 2026501-1,000296 contacts →

Exact match

“We wish to inform you that the name of Suvidha Engineers India Pvt Ltd, has been changed to Shinryo Suvidha Engineers India Pvt Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLongueuil, QC, CanadaHQ recorded Nov 6, 2026501-1,000291 contacts →

Exact match

“Thanks to its multidisciplinary team, Navada offers a simple, turnkey approach to building services engineering.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchDarra, AustraliaHQ recorded Nov 6, 2026201-500291 contacts →

Exact match

“VAE engineers, constructs and manages Smarter HVAC Solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 20261,001-5,000282 contacts →

Exact match

“BİRLEŞİM MÜHENDİSLİK established in year 2002, in İSTANBUL and achieved its present structure with the vast acceleration parallel to the present technologies and sector…”

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

Showing 25 of 14,438 heating system design consultants worldwide

See the full list, filter by size, metro and specialty, and access 33,005 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Heating system design consultants worldwide at a glance

As of Nov 6, 2026
28.2%Verified-email coverage
8.1Average contacts per company
1-10Median size (employees)
0.8%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
7,155
11-50
4,923
51-200
1,371
201-500
252
501-1,000
64
1,001-5,000
40
5,001-10,000
10
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 heating system design consultants are linked below.
What qualifies
Company records worldwide whose business descriptions match “heating system design consultants” 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 33,005 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.

Heating system design consultants by location

43 lists · largest first

Every Heating system design consultants 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 “heating system design consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many heating system design consultants are there worldwide?

RevenueBase identified 14,438 company matches for heating system design consultants 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?

Mckenney's, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most heating system design consultants?

The United States leads with 1,944 companies, followed by the United Kingdom (1,557) and Germany (1,311). Every heating system design consultants list by country and city is linked on this page.

Which city has the most heating system design consultants?

London leads with 116 company records, followed by Sao Paulo (95) and Istanbul (93).

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 33,005 professional contacts with verified work emails tracked across these 14,438 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.