Company lists · Data refreshed October 2026

Top 25 Hvac design engineering companies worldwide

Name: Hvac design engineering companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 14, 2026 20,265 companies tracked

RevenueBase identified 20,265 company matches for hvac design engineering companies worldwide as of October 2026 and tracks 236,191 professional contacts across them, including 73,472 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for hvac design engineering 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 October 14, 2026. Country and city lists for hvac design engineering 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 Oct 14, 2026 How this list was built

20,265Companies

236,191Contacts tracked

73,472Verified emails

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The 25 largest hvac design engineering companies worldwide

Ranked by team size

Top 25 of 20,265 company matches for hvac design engineering companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 14, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Acco Engineered Systems	Exact match	Pasadena, CA, United StatesHQ recorded Oct 14, 2026	5,001-10,000	2,573 contacts →
	Exact match “Since 1934, owners and builders have selected ACCO Engineered Systems to design, install, and maintain more than mechanical projects.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
2	Aaon, INC	Exact match	Tulsa, OK, United StatesHQ recorded Oct 14, 2026	1,001-5,000	1,315 contacts →
	Exact match “Driving the industry forward through the design, manufacturing, and rigorous testing of premium HVAC equipment.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
3	Hoare LEA	Exact match	London, United KingdomHQ recorded Oct 14, 2026	501-1,000	1,146 contacts →
	Exact match “We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
4	Henderson Engineers	Exact match	Lenexa, KS, United StatesHQ recorded Oct 14, 2026	501-1,000	1,096 contacts →
	Exact match “Henderson Engineers is a national building systems design firm with a wide array of engineering services and a portfolio representing a full range of markets including business…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
5	Mckenney's, INC	Exact match	Atlanta, GA, United StatesHQ recorded Oct 14, 2026	1,001-5,000	1,088 contacts →
	Exact match “McKenney’s is the Southeast’s most trusted name in facility construction, operation and maintenance.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
6	Cmta, INC	Exact match	Louisville, KY, United StatesHQ recorded Oct 14, 2026	501-1,000	1,016 contacts →
	Exact match “CMTA is part of Legence, a Nasdaq Listed company.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
7	BAC Baltimore Aircoil Company, INC	Exact match	Jessup, MD, United StatesHQ recorded Oct 14, 2026	1,001-5,000	985 contacts →
	Exact match “At BAC, we don’t just build cooling systems, we shape the future of sustainable solutions.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
8	Ventec S.A	Exact match	Casablanca, MoroccoHQ recorded Oct 14, 2026	1,001-5,000	971 contacts →
	Exact match “La Société Ventec a été créée au Maroc en 1949 par Monsieur Albert MARQUET Président Directeur Général de Ventec en France.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
9	MCI SAS	Exact match	Carquefou, FranceHQ recorded Oct 14, 2026	1,001-5,000	968 contacts →
	Exact match “Spécialiste du froid et la climatisation depuis 60 ans, MCI s'engage à vous offrir un grand choix de solutions et de services parfaitement adaptés à vos exigences.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
10	Stellar	Exact match	Jacksonville, FL, United StatesHQ recorded Oct 14, 2026	501-1,000	922 contacts →
	Exact match “Stellar, headquartered in Jacksonville, Florida, is a fully integrated firm focusing on design, engineering, construction, refrigeration, and mechanical and electrical services…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
11	Syska Hennessy Group	Exact match	New York, United StatesHQ recorded Oct 14, 2026	501-1,000	835 contacts →
	Exact match “Consult Engineer Commission At Syska Hennessy Group, we create exceptional environments.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
12	PAE	Exact match	Portland, OR, United StatesHQ recorded Oct 14, 2026	201-500	835 contacts →
	Exact match “PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
13	IMI Climate Control	Exact match	Eysins, SwitzerlandHQ recorded Oct 14, 2026	1,001-5,000	794 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 · Oct 14, 2026 · View company records in RevenueBase
14	HTS Engineering	Exact match	Toronto, ON, CanadaHQ recorded Oct 14, 2026	1,001-5,000	733 contacts →
	Exact match “Your success is our success.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
15	Conserve Solutions	Exact match	IndiaHQ recorded Oct 14, 2026	501-1,000	717 contacts →
	Exact match “Conserve Solutions was founded by passionate professionals in 2016 to provide Holistic Engineering Solutions for a sustainable built environment.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
16	ME Engineers	Exact match	Golden, CO, United StatesHQ recorded Oct 14, 2026	201-500	709 contacts →
	Exact match “ME Engineers has earned a reputation as a global leader in the design of innovative MEPT systems that bring to life the world's most innovative sports and entertainment venues.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
17	Smith Andersen	Exact match	Toronto, ON, CanadaHQ recorded Oct 14, 2026	501-1,000	708 contacts →
	Exact match “What does it take to be one of Canada’s most respected integrated engineering firms?” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
18	SES Engineering Services	Exact match	York, United KingdomHQ recorded Oct 14, 2026	501-1,000	606 contacts →
	Exact match “SES Engineering Services boasts a rich 65-year history delivering engineering excellence in the UK.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
19	F.E. Moran Group Of Companies	Exact match	Northbrook, IL, United StatesHQ recorded Oct 14, 2026	1,001-5,000	592 contacts →
	Exact match “At F.E.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
20	Texas Airsystems	Exact match	Irving, TX, United StatesHQ recorded Oct 14, 2026	201-500	580 contacts →
	Exact match “In business for over 45 years, Texas AirSystems has grown to be recognized as one of the premier partners for commercial HVAC solutions in Texas, boasting over 500 associates…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
21	Vanderweil Engineers	Exact match	Boston, MA, United StatesHQ recorded Oct 14, 2026	201-500	562 contacts →
	Exact match “Vanderweil is a mechanical, electrical, plumbing, fire protection, technology, sustainability, commissioning, and power engineering firm dedicated to providing customized and…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
22	Climate Pros, LLC	Exact match	Glendale Heights, IL, United StatesHQ recorded Oct 14, 2026	1,001-5,000	562 contacts →
	Exact match “At Climate Pros, LLC, we are a leading commercial refrigeration and HVAC company specializing in the design, construction, and servicing of refrigeration systems across thousands…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
23	Deem, LLC	Exact match	Indianapolis, IN, United StatesHQ recorded Oct 14, 2026	1,001-5,000	537 contacts →
	Exact match “DEEM, LLC is a mechanical and electrical company centrally located in Fishers, Indiana with satellite offices throughout the Midwest down to the southeastern United States.” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
24	Ilensys Technologies PVT LTD	Exact match	Hyderabad, IndiaHQ recorded Oct 14, 2026	201-500	532 contacts →
	Exact match “iLenSys Technologies is a global engineering company providing specialized and innovative design services and solutions in the field of Mechanical Engineering, Electrical and…” Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
25	Therma	Exact match	San Jose, CA, United StatesHQ recorded Oct 14, 2026	1,001-5,000	507 contacts →
	Exact match “Therma is part of Legence, a Blackstone portfolio company, specially created to be an Energy Transition Accelerator™.” Recorded in the RevenueBase company graph · Oct 14, 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 “hvac design engineering companies”. 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 20,265 hvac design engineering companies worldwide

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Hvac design engineering companies worldwide at a glance

As of Oct 14, 2026

31.1%Verified-email coverage

11.7Average contacts per company

11-50Median size (employees)

1.0%Largest-city concentration · Sao Paulo

Oct 14, 2026Page data refreshed

Companies by employee count

1-10

8,905

11-50

7,852

51-200

2,573

201-500

551

501-1,000

145

1,001-5,000

5,001-10,000

10001+

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 design engineering companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “hvac design engineering 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 73,472 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 October 14, 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 design engineering companies by location

85 lists · largest first

Every Hvac design engineering companies 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 design engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hvac design engineering companies are there worldwide?

RevenueBase identified 20,265 company matches for hvac design engineering companies worldwide as of October 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?

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

Which country has the most hvac design engineering companies?

The United States leads with 6,278 companies, followed by India (1,012) and the United Kingdom (932). Every hvac design engineering companies list by country and city is linked on this page.

Which city has the most hvac design engineering companies?

Sao Paulo leads with 204 company records, followed by Dubai (157) and New York (132).

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 73,472 professional contacts with verified work emails tracked across these 20,265 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 October 14, 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.