Company lists · Data refreshed October 2026

Top 25 Building systems consultants worldwide

Name: Building systems consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 34,424 companies tracked

RevenueBase identified 34,424 company matches for building systems consultants worldwide as of October 2026 and tracks 512,401 professional contacts across them, including 168,088 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for building systems 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 October 9, 2026. Country and city lists for building systems 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 Oct 9, 2026 How this list was built

34,424Companies

512,401Contacts tracked

168,088Verified emails

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The 25 largest building systems consultants worldwide

Ranked by team size

Top 25 of 34,424 company matches for building systems consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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	Equans	Exact match	Courbevoie, FranceHQ recorded Oct 9, 2026	10001+	5,490 contacts →
	Exact match “Equans, a Bouygues group company, is a world leader in multi-technical services with offices in 20 country hubs.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2	Equans Belux	Exact match	Brussels, BelgiumHQ recorded Oct 9, 2026	5,001-10,000	5,347 contacts →
	Exact match “What if you could use your talent to contribute to the great challenges of tomorrow?” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	Caverion	Exact match	Vantaa, FinlandHQ recorded Oct 9, 2026	10001+	4,548 contacts →
	Exact match “About Caverion Caverion is an expert for smart and sustainable built environments, enabling performance and people’s well-being.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4	Julius Berger Nigeria PLC	Exact match	Utako, NigeriaHQ recorded Oct 9, 2026	10001+	3,467 contacts →
	Exact match “Julius Berger Nigeria Plc is a leading construction company offering integrated construction solutions and related services.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	Southland Industries	Exact match	Garden Grove, CA, United StatesHQ recorded Oct 9, 2026	10001+	3,010 contacts →
	Exact match “As one of the nation's largest building systems experts, Southland Industries provides innovative, practical results for your engineering, construction, service, and energy needs.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6	Croonwolter&dros	Exact match	Rotterdam, NetherlandsHQ recorded Oct 9, 2026	1,001-5,000	2,601 contacts →
	Exact match “For more than 140 years Croonwolter & dros has been in the vanguard of new developments.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7	Multiconsult	Exact match	Oslo, NorwayHQ recorded Oct 9, 2026	1,001-5,000	2,577 contacts →
	Exact match “Multiconsult Norway is one of the leading firms of architectures, consulting engineers and designers in Norway.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8	Acco Engineered Systems	Exact match	Pasadena, CA, United StatesHQ recorded Oct 9, 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 9, 2026 · View company records in RevenueBase
9	Power Design	Exact match	St. Petersburg, FL, United StatesHQ recorded Oct 9, 2026	1,001-5,000	2,536 contacts →
	Exact match “Power Design is a National Design Build Contractor, focused on innovative construction across multiple trades: electrical, mechanical, plumbing, and systems technologies.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10	The Haskell Company	Exact match	Jacksonville, FL, United StatesHQ recorded Oct 9, 2026	1,001-5,000	2,390 contacts →
	Exact match “Haskell delivers over $3 billion annually in Architecture, Engineering, Construction (AEC) and Consulting solutions to assure certainty of outcome for complex capital projects…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	IMEG	Exact match	Rock Island, IL, United StatesHQ recorded Oct 9, 2026	1,001-5,000	2,064 contacts →
	Exact match “Leaders in Engineering and Innovation.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12	Araujo Abreu Engenharia	Exact match	Rio De Janeiro, BrazilHQ recorded Oct 9, 2026	1,001-5,000	1,886 contacts →
	Exact match “A Araujo Abreu foi fundada em 1922.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	Bowman Consulting	Exact match	Reston, VA, United StatesHQ recorded Oct 9, 2026	1,001-5,000	1,778 contacts →
	Exact match “Headquartered in Reston, Virginia, Bowman is a national engineering services firm delivering infrastructure solutions to customers who own, develop and maintain the built…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	Modern Niagara	Exact match	Kanata, ON, CanadaHQ recorded Oct 9, 2026	1,001-5,000	1,585 contacts →
	Exact match “We build for life.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15	Emcor Group, INC	Exact match	Norwalk, CT, United StatesHQ recorded Oct 9, 2026	10001+	1,443 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	Macdonald-Miller Facility Solutions	Exact match	Seatac, WA, United StatesHQ recorded Oct 9, 2026	1,001-5,000	1,365 contacts →
	Exact match “MacDonald-Miller Facility Solutions is a full-service, design-build mechanical contractor in the Pacific Northwest.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	Comfort Systems USA	Exact match	Houston, TX, United StatesHQ recorded Oct 9, 2026	10001+	1,354 contacts →
	Exact match “Comfort Systems USA \| Quality People.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18	Bravida Danmark A S	Exact match	Brøndby, DenmarkHQ recorded Oct 9, 2026	1,001-5,000	1,342 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	OLA	Exact match	Austin, TX, United StatesHQ recorded Oct 9, 2026	n/a	1,150 contacts →
	Exact match “OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	Hoare LEA	Exact match	London, United KingdomHQ recorded Oct 9, 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 9, 2026 · View company records in RevenueBase
21	Kuijpers	Exact match	Helmond, NetherlandsHQ recorded Oct 9, 2026	1,001-5,000	1,144 contacts →
	Exact match “Kuijpers is een professionele technisch dienstverlener met ruim 1200 medewerkers.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	Granlund	Exact match	Helsinki, FinlandHQ recorded Oct 9, 2026	1,001-5,000	1,131 contacts →
	Exact match “Granlund on voimakkaasti kasvava kiinteistö- ja rakennusalan asiantuntijayhtiö.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	BTP Consultants	Exact match	Montigny-le-bretonneux, FranceHQ recorded Oct 9, 2026	201-500	1,116 contacts →
	Exact match “BTP Consultants est un bureau de ̂, et présent à l'échelle nationale depuis plus de.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	Henderson Engineers	Exact match	Lenexa, KS, United StatesHQ recorded Oct 9, 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 9, 2026 · View company records in RevenueBase
25	Plan Group INC	Exact match	Vaughan, ON, CanadaHQ recorded Oct 9, 2026	1,001-5,000	1,096 contacts →
	Exact match “Plan Group is a dynamic construction company that believes working together makes anything possible.” Recorded in the RevenueBase company graph · Oct 9, 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 “building systems consultants”. 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 34,424 building systems consultants worldwide

See the full list, filter by size, metro and specialty, and access 168,088 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Building systems consultants worldwide at a glance

As of Oct 9, 2026

32.8%Verified-email coverage

14.9Average contacts per company

11-50Median size (employees)

1.2%Largest-city concentration · Sao Paulo

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

15,614

11-50

12,756

51-200

4,356

201-500

961

501-1,000

272

1,001-5,000

173

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 building systems consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “building systems 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 168,088 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 9, 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.

Building systems consultants by location

148 lists · largest first

Every Building systems 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 “building systems consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many building systems consultants are there worldwide?

RevenueBase identified 34,424 company matches for building systems consultants 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?

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

Which country has the most building systems consultants?

The United States leads with 6,485 companies, followed by the United Kingdom (2,244) and Italy (1,998). Every building systems consultants list by country and city is linked on this page.

Which city has the most building systems consultants?

Sao Paulo leads with 428 company records, followed by London (328) and Dubai (231).

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 168,088 professional contacts with verified work emails tracked across these 34,424 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 9, 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.