Company lists · Data refreshed November 2026

Top 25 Building systems design firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 20,257 companies tracked

RevenueBase identified 20,257 company matches for building systems design firms worldwide as of November 2026 and tracks 269,430 professional contacts across them, including 98,073 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers company matches for building systems design firms 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 building systems design firms 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

20,257Companies

269,430Contacts tracked

98,073Verified emails

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The 25 largest building systems design firms worldwide

Ranked by team size

Top 25 of 20,257 company matches for building systems design firms 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Southland Industries	Exact match	Garden Grove, MD, United StatesHQ recorded Nov 6, 2026	10001+	3,122 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 · Nov 6, 2026 · View company records in RevenueBase
2	Power Design	Exact match	St. Petersburg, FL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,657 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 · Nov 6, 2026 · View company records in RevenueBase
3	DLR Group	Exact match	30 Offices, TN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,118 contacts →
	Exact match “DLR Group is an integrated design firm delivering architecture, engineering, interiors, planning, and building optimization for new construction, renovation, and adaptive reuse.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Group Amana	Exact match	Dubai Investment Park 1, United Arab EmiratesHQ recorded Nov 6, 2026	5,001-10,000	1,893 contacts →
	Exact match “Group AMANA is the regional leader in the design-build of industrial and commercial facilities, with over 1,500 buildings constructed across the region in three decades of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	IBI Group	Exact match	Amsterdam, FL, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	1,582 contacts →
	Exact match “IBI Group is a technology-driven design firm with global architecture, engineering, planning and technology expertise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	PAGE	Exact match	Washington, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,456 contacts →
	Exact match “Performance by Design.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	GRAY	Exact match	Lexington, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,439 contacts →
	Exact match “Founded by James Norris and Lois Howard Gray in 1960, Gray is a family-owned, fully integrated industrial design-builder specializing in engineering, architecture, construction…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Athié Wohnrath	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	501-1,000	1,198 contacts →
	Exact match “Para nós do Grupo a\|w, projetos impactantes são aqueles que traduzem o jeito de ser das pessoas e os valores das empresas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Hoare LEA	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	1,183 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 · Nov 6, 2026 · View company records in RevenueBase
10	The Beck Group	Exact match	Dallas, FL, United StatesHQ recorded Nov 6, 2026	501-1,000	1,178 contacts →
	Exact match “We integrate architecture, construction, sustainability, and technology to transform how our clients design and build.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Mckenney's, INC	Exact match	Atlanta, NC, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,143 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
12	Mapa Group	Exact match	Ankara, TürkiyeHQ recorded Nov 6, 2026	10001+	1,130 contacts →
	Exact match “Mapa Group has emerged as a global leader in the engineering and construction industry, now spanning three continents.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Henderson Engineers	Exact match	Lenexa, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	1,124 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 · Nov 6, 2026 · View company records in RevenueBase
14	Ware Malcomb	Exact match	International Design Firm, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	1,057 contacts →
	Exact match “Established in 1972, Ware Malcomb is a dynamic, forward-thinking design firm offering streamlined architecture, interior design, branding, and engineering services across the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	NORR	Exact match	Toronto, ON, CanadaHQ recorded Nov 6, 2026	501-1,000	994 contacts →
	Exact match “NORR is a global team of 800 architects, engineers, planners, and interior designers creating design strategies and solutions that express the unique vision of every project.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Stellar	Exact match	Jacksonville, FL, United StatesHQ recorded Nov 6, 2026	501-1,000	941 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 · Nov 6, 2026 · View company records in RevenueBase
17	ARE OY	Exact match	Vantaa, FinlandHQ recorded Nov 6, 2026	1,001-5,000	916 contacts →
	Exact match “Dedicated to engineering a better life for your building.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Arco Murray	Exact match	Austin, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	912 contacts →
	Exact match “ARCO/Murray is a single source national design and construction firm that specializes in commercial construction and real estate needs for Fortune 500 companies and individual…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Syska Hennessy Group	Exact match	Raleigh, NC, United StatesHQ recorded Nov 6, 2026	501-1,000	857 contacts →
	Exact match “Consult Engineer Commission At Syska Hennessy Group, we create exceptional environments.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	PAE	Exact match	Portland, NV, United StatesHQ recorded Nov 6, 2026	201-500	843 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 · Nov 6, 2026 · View company records in RevenueBase
21	Introba	Exact match	St. Louis, United StatesHQ recorded Nov 6, 2026	1,001-5,000	829 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Skets Studio	Exact match	New Delhi, IndiaHQ recorded Nov 6, 2026	1,001-5,000	815 contacts →
	Exact match “Est.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Saudi Diyar Consultants	Exact match	Jeddah, Saudi ArabiaHQ recorded Nov 6, 2026	501-1,000	814 contacts →
	Exact match “Architects and Engineers Saudi Diyar Consultants is one of the leading multidiscipline design firms in the Middle East with a diverse portfolio of commercial, institutional…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	M3 Engineering & Technology Corp	Exact match	Tucson, AZ, United StatesHQ recorded Nov 6, 2026	501-1,000	802 contacts →
	Exact match “M3 is a privately held full service design firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Ae7	Exact match	Dubai, FL, United Arab EmiratesHQ recorded Nov 6, 2026	501-1,000	798 contacts →
	Exact match “AE7 is a multi-disciplinary firm that believes in a holistic approach to design and the transformational power of architecture to create thoughtful and meaningful solutions in the…” Recorded in the RevenueBase company graph · Nov 6, 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 design firms”. 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 20,257 building systems design firms worldwide

See the full list, filter by size, metro and specialty, and access 98,073 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Building systems design firms worldwide at a glance

As of Nov 6, 2026

36.4%Verified-email coverage

13.3Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · New York

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

11,427

11-50

6,522

51-200

1,616

201-500

314

501-1,000

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 building systems design firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “building systems design firms” 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 98,073 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.

Building systems design firms by location

114 lists · largest first

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

How many building systems design firms are there worldwide?

RevenueBase identified 20,257 company matches for building systems design firms 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?

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

Which country has the most building systems design firms?

The United States leads with 5,969 companies, followed by India (1,573) and Canada (834). Every building systems design firms list by country and city is linked on this page.

Which city has the most building systems design firms?

New York leads with 253 company records, followed by London (184) and Sao Paulo (172).

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 98,073 professional contacts with verified work emails tracked across these 20,257 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.