Company lists · Data refreshed September 2026

Top 25 Architecture firms based in the United States

Name: Architecture firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 39,548 companies tracked

RevenueBase identified 39,548 company matches for architecture firms associated with the United States as of September 2026 and tracks 702,400 professional contacts across them, including 322,616 with verified work emails and 287,120 with mobile numbers. New York is the largest hub.

This list covers company matches for architecture firms associated with the United States, 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 September 6, 2026.

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 Sep 6, 2026 How this list was built

39,548Companies

702,400Contacts tracked

322,616Verified emails

287,120Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest architecture firms based in the United States

Ranked by team size

Top 25 of 39,548 company matches for architecture firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 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	AECOM	Exact match	Dallas, TX, United StatesHQ recorded Sep 6, 2026	10001+	63,914 contacts →
	Exact match “AECOM is the global infrastructure leader, committed to delivering a better world.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
2	HDR	Exact match	Omaha, NE, United StatesHQ recorded Sep 6, 2026	10001+	15,269 contacts →
	Exact match “HDR is an employee-owned design firm specializing in engineering, architecture, environmental and construction services.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
3	Burns & Mcdonnell	Exact match	Kansas City, MO, United StatesHQ recorded Sep 6, 2026	10001+	12,497 contacts →
	Exact match “At Burns & McDonnell, our engineers, construction professionals, architects, planners, technologists and scientists do more than plan, design and construct.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
4	Kimley-Horn	Exact match	Raleigh, NC, United StatesHQ recorded Sep 6, 2026	5,001-10,000	10,117 contacts →
	Exact match “Kimley-Horn is one of the nation’s premier planning and design consulting firms.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
5	WSP In The U.S	Exact match	New York, NY, United StatesHQ recorded Sep 6, 2026	10001+	9,318 contacts →
	Exact match “What if you could shape built and natural environments – and the future of those that use them?” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
6	Gensler	Exact match	San Francisco, CA, United StatesHQ recorded Sep 6, 2026	5,001-10,000	7,900 contacts →
	Exact match “Gensler is a global architecture, design, and planning firm with 57 locations across the Americas, Europe, Greater China, Asia Pacific, and the Middle East.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
7	Hensel Phelps	Exact match	Greeley, CO, United StatesHQ recorded Sep 6, 2026	5,001-10,000	4,094 contacts →
	Exact match “As an employee-owned company, Hensel Phelps culture is based on dedication and commitment to delivering EXCELLENCE for our clients and employees.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
8	Perkins&will	Exact match	Chicago, IL, United StatesHQ recorded Sep 6, 2026	1,001-5,000	2,958 contacts →
	Exact match “Since 1935, we’ve believed that design has the power to make the world a better, more beautiful place.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
9	BL Harbert International LLC	Exact match	Birmingham, AL, United StatesHQ recorded Sep 6, 2026	5,001-10,000	2,818 contacts →
	Exact match “BL Harbert International, LLC began construction operations in under the leadership of Billy Harbert, Jr, carrying on a family tradition in the construction industry dating back…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
10	Dewberry	Exact match	Fairfax, VA, United StatesHQ recorded Sep 6, 2026	1,001-5,000	2,795 contacts →
	Exact match “Dewberry is a leading, market-facing firm with a proven history of providing professional services to a wide variety of public- and private-sector clients.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
11	HOK	Exact match	New York, NY, United StatesHQ recorded Sep 6, 2026	1,001-5,000	2,614 contacts →
	Exact match “HOK is a global interdisciplinary design firm.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
12	Hks, INC	Exact match	Dallas, TX, United StatesHQ recorded Sep 6, 2026	1,001-5,000	2,462 contacts →
	Exact match “We are a global firm of architects, designers, planners and advisors who create places noted for their beauty and performance.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
13	The Haskell Company	Exact match	Jacksonville, FL, United StatesHQ recorded Sep 6, 2026	1,001-5,000	2,213 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 · Sep 6, 2026 · View company records in RevenueBase
14	Olsson	Exact match	Lincoln, NE, United StatesHQ recorded Sep 6, 2026	1,001-5,000	2,108 contacts →
	Exact match “Olsson is an engineering firm made up of people who craft expert solutions and designs that improve communities.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
15	Colliers Engineering & Design	Exact match	Holmdel, NJ, United StatesHQ recorded Sep 6, 2026	1,001-5,000	2,049 contacts →
	Exact match “Colliers Engineering & Design, an affiliate of Colliers, is a trusted provider of multi-discipline engineering and architecture, design and consulting services to public and…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
16	DLR Group	Exact match	30 Offices, MN, United StatesHQ recorded Sep 6, 2026	1,001-5,000	1,992 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 · Sep 6, 2026 · View company records in RevenueBase
17	IMEG	Exact match	Rock Island, IL, United StatesHQ recorded Sep 6, 2026	1,001-5,000	1,985 contacts →
	Exact match “Leaders in Engineering and Innovation.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
18	Skidmore, Owings & Merrill SOM	Exact match	New York, NY, United StatesHQ recorded Sep 6, 2026	1,001-5,000	1,967 contacts →
	Exact match “Skidmore, Owings & Merrill (SOM) is a global practice of architects, designers, engineers, and planners, responsible for some of the world’s most technically and environmentally…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
19	Rs&h	Exact match	Jacksonville, FL, United StatesHQ recorded Sep 6, 2026	1,001-5,000	1,942 contacts →
	Exact match “With a history of taking the leap from what is to what could be, RS & H is a 100% employee-owned, people-first firm that provides integrated architecture, engineering, and…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
20	Smithgroup	Exact match	Detroit, MI, United StatesHQ recorded Sep 6, 2026	1,001-5,000	1,849 contacts →
	Exact match “SmithGroup is an award-winning, multi-national integrated design firm that employs research, data, advanced technologies and design thinking to help clients solve their greatest…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
21	Layton Construction	Exact match	Sandy, UT, United StatesHQ recorded Sep 6, 2026	1,001-5,000	1,826 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
22	Ryan Companies Us, INC	Exact match	Minneapolis, MN, United StatesHQ recorded Sep 6, 2026	1,001-5,000	1,821 contacts →
	Exact match “At Ryan Companies, we believe the value of the buildings we design, develop, finance, manage and construct is about more than dollars and cents – it’s also about the value they…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
23	Clayco	Exact match	Chicago, IL, United StatesHQ recorded Sep 6, 2026	1,001-5,000	1,720 contacts →
	Exact match “Clayco is a full-service, turnkey real estate development, master planning, architecture, engineering, and construction firm that safely delivers clients across North America the…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
24	JMT	Exact match	Serving Clients Across The Us, MD, United StatesHQ recorded Sep 6, 2026	1,001-5,000	1,688 contacts →
	Exact match “Johnson, Mirmiran & Thompson is an employee owned, multi-disciplined firm offering a full array of planning, design, and construction phase consulting services for infrastructure…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase
25	Cannondesign	Exact match	New York, NY, United StatesHQ recorded Sep 6, 2026	1,001-5,000	1,660 contacts →
	Exact match “CannonDesign is a different kind of design firm, where architecture, strategy, experience, innovation and social good converge to create meaningful impact.” Recorded in the RevenueBase company graph · Sep 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 “architecture 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 39,548 architecture firms based in the United States

See the full list, filter by size, metro and specialty, and access 322,616 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Architecture firms based in the United States at a glance

As of Sep 6, 2026

45.9%Verified-email coverage

40.9%Mobile-number coverage

17.8Average contacts per company

1-10Median size (employees)

6.5%Largest-city concentration · New York

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

25,694

11-50

10,896

51-200

2,246

201-500

387

501-1,000

110

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

299,1500–30

21,12231–60

14461–90

6890–180

2,132180+

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.
What qualifies: Company records associated with the United States whose business descriptions match “architecture 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 322,616 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 September 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.

Architecture firms by metro

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 “architecture firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many architecture firms are there based in the United States?

RevenueBase identified 39,548 company matches for architecture firms associated with the United States as of September 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?

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

Which city has the most architecture firms?

New York leads with 2563 company records, followed by Los Angeles (1046) and Chicago (781).

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 322,616 professional contacts with verified work emails tracked across these 39,548 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 September 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 39,548 architecture firms based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Architecture firms by geography

Browse the directory

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.