Company lists · Data refreshed November 2026

Top 25 Architectural and development firms based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 26,111 companies tracked

RevenueBase identified 26,111 company matches for architectural and development firms associated with the United States as of November 2026 and tracks 385,301 professional contacts across them, including 176,719 with verified work emails. New York is the largest hub.

This list covers company matches for architectural and development 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 November 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 Nov 6, 2026 How this list was built

26,111Companies

385,301Contacts tracked

176,719Verified emails

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The 25 largest architectural and development firms based in the United States

Ranked by team size

Top 25 of 26,111 company matches for architectural and development firms based in the United States, 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	Hensel Phelps	Exact match	Greeley, CO, United StatesHQ recorded Nov 6, 2026	5,001-10,000	4,371 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 · Nov 6, 2026 · View company records in RevenueBase
2	Perkins&will	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,204 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 · Nov 6, 2026 · View company records in RevenueBase
3	Dewberry	Exact match	Fairfax, FL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,009 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 · Nov 6, 2026 · View company records in RevenueBase
4	HOK	Exact match	New York, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,828 contacts →
	Exact match “HOK is a global interdisciplinary design firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	The Haskell Company	Exact match	Jacksonville, WI, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,439 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 · Nov 6, 2026 · View company records in RevenueBase
6	Colliers Engineering & Design	Exact match	Holmdel, NC, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,172 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 · Nov 6, 2026 · View company records in RevenueBase
7	Skidmore, Owings & Merrill SOM	Exact match	New York, DC, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,130 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 · Nov 6, 2026 · View company records in RevenueBase
8	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
9	Clayco	Exact match	Chicago, MO, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,903 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 · Nov 6, 2026 · View company records in RevenueBase
10	Ryan Companies Us, INC	Exact match	Minneapolis, GA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,886 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 · Nov 6, 2026 · View company records in RevenueBase
11	IA Interior Architects	Exact match	San Francisco, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	1,722 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 · Nov 6, 2026 · View company records in RevenueBase
12	BW Design Group	Exact match	St. Louis, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,703 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 · Nov 6, 2026 · View company records in RevenueBase
13	Kpff Consulting Engineers	Exact match	Seattle, ID, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,631 contacts →
	Exact match “KPFF is a multi-office, multi-discipline engineering firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Corgan	Exact match	Dallas, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,490 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 · Nov 6, 2026 · View company records in RevenueBase
15	Gresham Smith	Exact match	Nashville, TN, United StatesHQ recorded Nov 6, 2026	501-1,000	1,481 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 · Nov 6, 2026 · View company records in RevenueBase
16	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
17	Walter P Moore	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,446 contacts →
	Exact match “Welcome to Walter P Moore!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Bohler	Exact match	Herndon, PA, United StatesHQ recorded Nov 6, 2026	501-1,000	1,239 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 · Nov 6, 2026 · View company records in RevenueBase
19	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
20	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
21	Aecom Tishman	Exact match	New York, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,111 contacts →
	Exact match “Since 1898, AECOM Tishman has managed some of the largest and most complex mixed-use and mega development projects in the U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	KPF	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	1,091 contacts →
	Exact match “KPF is dedicated to transforming cities through impactful design, collaborating closely with the world’s most forward-thinking clients to create high performing, carefully crafted…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	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
24	Simpson Gumpertz & Heger SGH	Exact match	Waltham, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	969 contacts →
	Exact match “Simpson Gumpertz & Heger (SGH) is a national engineering firm committed to delivering holistic advice for our clients’ most complex challenges.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	PBK	Exact match	Houston, FL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	936 contacts →
	Exact match “PBK is an award-winning architecture, engineering and consulting practice that has been a leader in design solutions for education, healthcare, corporate, government and…” 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 “architectural and development 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 26,111 architectural and development firms based in the United States

See the full list, filter by size, metro and specialty, and access 176,719 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Architectural and development firms based in the United States at a glance

As of Nov 6, 2026

45.9%Verified-email coverage

14.8Average contacts per company

1-10Median size (employees)

6.2%Largest-city concentration · New York

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

16,392

11-50

7,717

51-200

1,541

201-500

238

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 26,111 companies.

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 and development 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 176,719 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.

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

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

RevenueBase identified 26,111 company matches for architectural and development firms associated with the United States 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?

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

Which city has the most architectural and development firms?

New York leads with 1619 company records, followed by Los Angeles (642) and Chicago (517).

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 176,719 professional contacts with verified work emails tracked across these 26,111 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.