Company lists · Data refreshed September 2026

Top 25 Smart building companies worldwide

RevenueBase identified 9,859 smart building companies worldwide as of September 2026 and tracks 268,804 professional contacts across them, including 84,820 with verified work emails and 0 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers smart building companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 18, 2026. Country and city lists for smart building companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 18, 2026 86% judged on-target in blind review
9,859Companies
268,804Contacts tracked
84,820Verified emails
0Mobile numbers
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The 25 largest smart building companies worldwide

Ranked by team size
Top 25 of 9,859 smart building companies worldwide, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to smart building companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceCork, IrelandHQ checked Sep 18, 202610001+52,736 contacts →

Partial evidence

“Johnson Controls is a global leader in thermal management, mission-critical building systems, energy efficiency and decarbonization.”

Source: RevenueBase Database · checked Sep 18, 2026
2Indirect evidenceHoffman Estates, IL, United StatesHQ checked Sep 18, 202610001+5,707 contacts →

Indirect evidence

“Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.”

Source: RevenueBase Database · checked Sep 18, 2026
3Indirect evidenceBrussels, BelgiumHQ checked Sep 18, 20265,001-10,0005,297 contacts →

Indirect evidence

“What if you could use your talent to contribute to the great challenges of tomorrow?”

Source: RevenueBase Database · checked Sep 18, 2026
4Indirect evidenceCourbevoie, FranceHQ checked Sep 18, 202610001+5,064 contacts →

Indirect evidence

“Equans, a Bouygues group company, is a world leader in multi-technical services with offices in 20 country hubs.”

Source: RevenueBase Database · checked Sep 18, 2026
5Partial evidenceVantaa, FinlandHQ checked Sep 18, 202610001+4,438 contacts →

Partial evidence

“About Caverion Caverion is an expert for smart and sustainable built environments, enabling performance and people’s well-being.”

Source: RevenueBase Database · checked Sep 18, 2026
6Indirect evidenceUdaipur, IndiaHQ checked Sep 18, 20265,001-10,0003,428 contacts →

Indirect evidence

“Secure is an Indian multinational corporation dedicated to delivering innovative solutions, services, and products that help users save, reduce energy use, live in comfort, and…”

Source: RevenueBase Database · checked Sep 18, 2026
7Partial evidenceCork, IrelandHQ checked Sep 18, 202610001+3,119 contacts →

Partial evidence

“Tyco is now Johnson Controls, the world leader in fire protection, security, HVAC, building controls and energy storage.”

Source: RevenueBase Database · checked Sep 18, 2026
8Indirect evidenceTysons, VA, United StatesHQ checked Sep 18, 20265,001-10,0002,761 contacts →

Indirect evidence

“M.C.”

Source: RevenueBase Database · checked Sep 18, 2026
9Indirect evidenceCambridge, ON, CanadaHQ checked Sep 18, 20265,001-10,0002,754 contacts →

Indirect evidence

“HELPING ADVANCE THE FUTURE ATS Corporation is an industry-leading automation solutions provider to many of the world's most successful companies.”

Source: RevenueBase Database · checked Sep 18, 2026
10Indirect evidenceRotterdam, NetherlandsHQ checked Sep 18, 20261,001-5,0002,515 contacts →

Indirect evidence

“For more than 140 years Croonwolter & dros has been in the vanguard of new developments.”

Source: RevenueBase Database · checked Sep 18, 2026
11Partial evidenceGarden Grove, CA, United StatesHQ checked Sep 18, 202610001+2,439 contacts →

Partial evidence

“As one of the nation's largest building systems experts, Southland Industries provides innovative, practical results for your engineering, construction, service, and energy needs.”

Source: RevenueBase Database · checked Sep 18, 2026
12Indirect evidenceKanata, ON, CanadaHQ checked Sep 18, 20261,001-5,0001,556 contacts →

Indirect evidence

“We build for life.”

Source: RevenueBase Database · checked Sep 18, 2026
13Indirect evidenceNorwalk, CT, United StatesHQ checked Sep 18, 202610001+1,383 contacts →

Indirect evidence

“A Fortune 500® company and a member of the S&P 500, EMCOR Group, Inc.(NYSE: EME) is a leader in mechanical and electrical construction, industrial and energy infrastructure, and…”

Source: RevenueBase Database · checked Sep 18, 2026
14Indirect evidenceBrøndby, DenmarkHQ checked Sep 18, 20261,001-5,0001,298 contacts →

Indirect evidence

“Bravida Danmark er blandt landets største tekniske installations- og servicevirksomheder med over medarbejdere i byer landet over, og vi er en arbejdsplads, der har plads til alle.”

Source: RevenueBase Database · checked Sep 18, 2026
15Partial evidenceKennesaw, GA, United StatesHQ checked Sep 18, 2026501-1,0001,115 contacts →

Partial evidence

“Automated Logic Corporation (ALC) provides innovative building automation and control systems.”

Source: RevenueBase Database · checked Sep 18, 2026
16Indirect evidenceVaughan, ON, CanadaHQ checked Sep 18, 20261,001-5,0001,092 contacts →

Indirect evidence

“Plan Group is a dynamic construction company that believes working together makes anything possible.”

Source: RevenueBase Database · checked Sep 18, 2026
17Indirect evidenceAtlanta, GA, United StatesHQ checked Sep 18, 20261,001-5,0001,077 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
18Partial evidenceLenexa, KS, United StatesHQ checked Sep 18, 2026501-1,0001,040 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 18, 2026
19Indirect evidenceLouisville, KY, United StatesHQ checked Sep 18, 2026501-1,000936 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
20Strong evidenceNijmegen, NetherlandsHQ checked Sep 18, 20261,001-5,000913 contacts →

Strong evidence

“Planon is the leading global provider of Smart Sustainable Building Management software.”

Source: RevenueBase Database · checked Sep 18, 2026
21Indirect evidenceJacksonville, FL, United StatesHQ checked Sep 18, 2026501-1,000899 contacts →

Indirect evidence

“Stellar, headquartered in Jacksonville, Florida, is a fully integrated firm focusing on design, engineering, construction, refrigeration, and mechanical and electrical services…”

Source: RevenueBase Database · checked Sep 18, 2026
22Indirect evidenceOslo, NorwayHQ checked Sep 18, 20261,001-5,000891 contacts →

Indirect evidence

“Bravida gir bygninger liv.”

Source: RevenueBase Database · checked Sep 18, 2026
23Partial evidencePhoenix, AZ, United StatesHQ checked Sep 18, 20261,001-5,000863 contacts →

Partial evidence

“Climatec has been making buildings safer, more comfortable and efficient for over 40 years.”

Source: RevenueBase Database · checked Sep 18, 2026
24Indirect evidenceLewisville, TX, United StatesHQ checked Sep 18, 20261,001-5,000857 contacts →

Indirect evidence

“Prime Controls was established as a Main Automation Contractor to provide customers a sole source solution for Industrial Automation services and products.”

Source: RevenueBase Database · checked Sep 18, 2026
25Partial evidenceSt Louis, MO, United StatesHQ checked Sep 18, 20261,001-5,000822 contacts →

Partial evidence

“Introba is one of the world’s largest building engineering and consulting firms with more than employees in offices across the United States, Canada, the United Kingdom, Serbia…”

Source: RevenueBase Database · checked Sep 18, 2026

Showing 25 of 9,859 smart building companies worldwide

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Smart building companies worldwide at a glance

As of Sep 18, 2026
31.6%Verified-email coverage
27.3Average contacts per company
11-50Median size (employees)
1.4%Largest-city concentration · Sao Paulo
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
4,374
11-50
3,689
51-200
1,254
201-500
272
501-1,000
94
1,001-5,000
75
5,001-10,000
11
10001+
18

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among smart building companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
38 countries, largest first: the United States, Germany, Italy, the United Kingdom, India, Brazil, France, the Netherlands, Canada, Switzerland and 28 more. Country and city lists for smart building companies are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “smart building companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names smart building companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among smart building companies, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 84,820 across the full list. 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 18, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Smart building companies by location

44 lists · largest first

Every Smart building 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names smart building companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many smart building companies are there worldwide?

RevenueBase identified 9,859 smart building companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Johnson Controls, headquartered in Milwaukee, tops this list with the largest team on record.

Which country has the most smart building companies?

The United States leads with 1,938 companies, followed by Germany (765) and Italy (732). Every smart building companies list by country and city is linked on this page.

Which city has the most smart building companies?

Sao Paulo leads with 137 headquartered companies, followed by Dubai (129) and London (116).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 84,820 verified decision-maker contacts tracked across these 9,859 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 18, 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 Smart Search, 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.