Company lists · Data refreshed September 2026

Top 25 Architectural consulting firms based in the United States

Name: Architectural consulting 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 28, 2026 18,129 companies tracked

RevenueBase identified 18,129 company matches for architectural consulting firms associated with the United States as of September 2026 and tracks 320,767 professional contacts across them, including 159,502 with verified work emails and 140,996 with mobile numbers. New York is the largest hub.

This list covers company matches for architectural consulting 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 28, 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 28, 2026 How this list was built

18,129Companies

320,767Contacts tracked

159,502Verified emails

140,996Mobile numbers

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

The 25 largest architectural consulting firms based in the United States

Ranked by team size

Top 25 of 18,129 company matches for architectural consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	Kimley-Horn	Exact match	Raleigh, NC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
2	WSP In The U.S	Exact match	New York, NY, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
3	Perkins&will	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
4	Dewberry	Exact match	Fairfax, VA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
5	HOK	Exact match	New York, NY, United StatesHQ recorded Sep 28, 2026	1,001-5,000	2,614 contacts →
	Exact match “HOK is a global interdisciplinary design firm.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Hks, INC	Exact match	Dallas, TX, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
7	The Haskell Company	Exact match	Jacksonville, FL, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
8	Colliers Engineering & Design	Exact match	Holmdel, NJ, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
9	DLR Group	Exact match	30 Offices, MN, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
10	IMEG	Exact match	Rock Island, IL, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,985 contacts →
	Exact match “Leaders in Engineering and Innovation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Skidmore, Owings & Merrill SOM	Exact match	New York, NY, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
12	Smithgroup	Exact match	Detroit, MI, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
13	Clayco	Exact match	Chicago, IL, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
14	Ssoe Group	Exact match	Toledo, OH, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,603 contacts →
	Exact match “As an internationally ranked architecture and engineering firm, SSOE is known for delivering unparalleled client value that advances the AEC industry.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	IA Interior Architects	Exact match	San Francisco, CA, United StatesHQ recorded Sep 28, 2026	501-1,000	1,584 contacts →
	Exact match “Celebrating 40 years of visionary design and innovation, IA Interior Architects is the first global architecture firm focused exclusively on interiors.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	BW Design Group	Exact match	St. Louis, MO, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,555 contacts →
	Exact match “BW Design Group is the only independent, fully integrated AEC firm powered by a Manufacturer's Mindset™.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Gresham Smith	Exact match	Nashville, TN, United StatesHQ recorded Sep 28, 2026	501-1,000	1,430 contacts →
	Exact match “Gresham Smith is a premier architecture, engineering and consultancy services firm dedicated to creating healthy and thriving communities.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Corgan	Exact match	Dallas, TX, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,414 contacts →
	Exact match “Corgan is an employee-owned architecture and design firm with 22 locations and more than 1,300 team members globally.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Davey Resource Group, INC	Exact match	Kent, OH, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,395 contacts →
	Exact match “Davey Resource Group, Inc.(DRG) provides innovative consulting and field services that support utility infrastructure and environmental stewardship.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Walter P Moore	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,298 contacts →
	Exact match “Welcome to Walter P Moore!” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	PAGE	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,191 contacts →
	Exact match “Performance by Design.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Rimkus	Exact match	Houston, TX, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,184 contacts →
	Exact match “Consultants.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	OLA	Exact match	Austin, TX, United StatesHQ recorded Sep 28, 2026	n/a	1,145 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 · Sep 28, 2026 · View company records in RevenueBase
24	Bohler	Exact match	Herndon, VA, United StatesHQ recorded Sep 28, 2026	501-1,000	1,136 contacts →
	Exact match “Bohler is a land development consulting and technical design firm that helps developers, owners and other real estate professionals identify and act on opportunities and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	The Beck Group	Exact match	Dallas, TX, United StatesHQ recorded Sep 28, 2026	501-1,000	1,054 contacts →
	Exact match “We integrate architecture, construction, sustainability, and technology to transform how our clients design and build.” Recorded in the RevenueBase company graph · Sep 28, 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 “architectural consulting 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 18,129 architectural consulting firms based in the United States

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Architectural consulting firms based in the United States at a glance

As of Sep 28, 2026

49.7%Verified-email coverage

44.0%Mobile-number coverage

17.7Average contacts per company

1-10Median size (employees)

6.3%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11,575

11-50

5,227

51-200

1,006

201-500

168

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 30.0d

71,1760–30

63,85431–60

4,08061–90

5990–180

726180+

Company record updated

Median 90.0d

00–30

75,47431–60

70,69561–90

125,11290–180

16,275180+

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 “architectural consulting 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 159,502 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 28, 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.

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

How many architectural consulting firms are there based in the United States?

RevenueBase identified 18,129 company matches for architectural consulting 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?

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

Which city has the most architectural consulting firms?

New York leads with 1143 company records, followed by Los Angeles (410) and Chicago (367).

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 159,502 professional contacts with verified work emails tracked across these 18,129 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 28, 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.