Company lists · Data refreshed September 2026

Top 25 Architectural survey firms based in the United States

Name: Architectural survey 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 30, 2026 5,259 companies tracked

RevenueBase identified 5,259 architectural survey firms headquartered in the United States as of September 2026 and tracks 60,728 professional contacts across them, including 30,217 with verified work emails. New York is the largest hub.

This list covers architectural survey firms headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 30, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 30, 2026 86% judged on-target in blind review

5,259Companies

60,728Contacts tracked

30,217Verified emails

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The 25 largest architectural survey firms based in the United States

Ranked by team size

Top 25 of 5,259 architectural survey firms based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to architectural survey firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Farnsworth Group, INC	Indirect evidence	Normal, IL, United StatesHQ checked Sep 30, 2026	501-1,000	654 contacts →
	Indirect evidence “Farnsworth Group is a leading employee-owned full-service design firm, with 650-plus professionals across the United States.” Source: RevenueBase Database · checked Sep 30, 2026
2	Goodwyn Mills Cawood GMC	Partial evidence	Montgomery, AL, United StatesHQ checked Sep 30, 2026	501-1,000	653 contacts →
	Partial evidence “ENR Southeast 2024 Design Firm of the Year Goodwyn Mills Cawood (GMC) is one of the largest architecture and engineering firms in the Southeast.” Source: RevenueBase Database · checked Sep 30, 2026
3	Architecture	Partial evidence	Troy, NY, United StatesHQ checked Sep 30, 2026	n/a	610 contacts →
	Partial evidence “architecture+ is a design and service-oriented architectural and planning firm located in Troy in New York's Capital Region.” Source: RevenueBase Database · checked Sep 30, 2026
4	Little Diversified Architectural Consulting	Partial evidence	Little Global, VA, United StatesHQ checked Sep 30, 2026	201-500	509 contacts →
	Partial evidence “At Little, we deliver results far beyond architecture-results you wouldn’t expect from an architectural firm.” Source: RevenueBase Database · checked Sep 30, 2026
5	Ceso, INC	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 30, 2026	501-1,000	485 contacts →
	Indirect evidence “For over thirty-five years, CESO has combined creativity with technical expertise to provide solutions that address our clients’ unique challenges and opportunities.” Source: RevenueBase Database · checked Sep 30, 2026
6	Mcmillan Pazdan Smith Architecture	Partial evidence	Greenville, SC, United StatesHQ checked Sep 30, 2026	201-500	464 contacts →
	Partial evidence “McMillan Pazdan Smith Architecture is an architecture, advisory services, planning, and interior design firm recognized for our collaborative culture and innovative solutions.” Source: RevenueBase Database · checked Sep 30, 2026
7	Martin Martin, INC	Indirect evidence	Lakewood, CO, United StatesHQ checked Sep 30, 2026	201-500	387 contacts →
	Indirect evidence “Martin/Martin, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
8	Galloway & Company, LLC	Strong evidence	Greenwood Village, CO, United StatesHQ checked Sep 30, 2026	201-500	349 contacts →
	Strong evidence “Galloway provides a full suite of architecture, engineering and survey services to comprehensively support development needs.” Source: RevenueBase Database · checked Sep 30, 2026
9	Cooper Carry	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 30, 2026	201-500	336 contacts →
	Partial evidence “Cooper Carry is a national architecture firm that brings an internationally recognized team of design professionals to the wide variety of project types we engage in, all united…” Source: RevenueBase Database · checked Sep 30, 2026
10	Excel Engineering, INC	Partial evidence	Fond Du Lac, WI, United StatesHQ checked Sep 30, 2026	201-500	333 contacts →
	Partial evidence “Excel is a national, full-service architectural and engineering firm located in Wisconsin.” Source: RevenueBase Database · checked Sep 30, 2026
11	Wold Architects And Engineers	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 30, 2026	201-500	331 contacts →
	Partial evidence “Wold Architects and Engineers provides architectural, engineering, interior design & planning services to education, government, healthcare & senior living clients.” Source: RevenueBase Database · checked Sep 30, 2026
12	MBH Architects	Partial evidence	Alameda, CA, United StatesHQ checked Sep 30, 2026	201-500	319 contacts →
	Partial evidence “MBH Architects is a full-service architectural firm headquartered in a LEED Gold office in the San Francisco Bay Area with offices in New York City, Denver, Mumbai, and Bengaluru.” Source: RevenueBase Database · checked Sep 30, 2026
13	Ps&s	Partial evidence	Warren, NJ, United StatesHQ checked Sep 30, 2026	201-500	301 contacts →
	Partial evidence “PS & S is an award-winning "one-stop shop” of architecture and engineering excellence, which was established in 1962.” Source: RevenueBase Database · checked Sep 30, 2026
14	Wallace Design Collective	Indirect evidence	Tulsa, OK, United StatesHQ checked Sep 30, 2026	201-500	289 contacts →
	Indirect evidence “fantastic people.” Source: RevenueBase Database · checked Sep 30, 2026
15	BSB Design	Indirect evidence	West Des Moines, IA, United StatesHQ checked Sep 30, 2026	51-200	281 contacts →
	Indirect evidence “For 60 years, BSB Design has partnered with clients to shape places that perform.” Source: RevenueBase Database · checked Sep 30, 2026
16	The S L A M Collaborative Slam	Partial evidence	Glastonbury, CT, United StatesHQ checked Sep 30, 2026	201-500	276 contacts →
	Partial evidence “SLAM is a 290 member architecture firm with offices in Atlanta, GA, Boston, MA, Denver, CO, Glastonbury, CT, Iowa City, IA, Los Angeles, CA, Orlando, FL, New York, NY…” Source: RevenueBase Database · checked Sep 30, 2026
17	Cuhaci Peterson	Indirect evidence	Maitland, FL, United StatesHQ checked Sep 30, 2026	201-500	248 contacts →
	Indirect evidence “Cuhaci Peterson is a Central Florida-based commercial design firm offering end-to-end solutions.” Source: RevenueBase Database · checked Sep 30, 2026
18	Lionakis	Partial evidence	Sacramento, CA, United StatesHQ checked Sep 30, 2026	201-500	244 contacts →
	Partial evidence “Lionakis was established in 1909 and is a multi-disciplinary firm specializing in architectural, structural engineering, and interior design services.” Source: RevenueBase Database · checked Sep 30, 2026
19	Marx Okubo Associates, INC	Indirect evidence	Denver, CO, United StatesHQ checked Sep 30, 2026	201-500	234 contacts →
	Indirect evidence “YOUR PROPERTY RISKS, SEEN AND SOLVED.” Source: RevenueBase Database · checked Sep 30, 2026
20	Allana Buick & Bers, INC	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 30, 2026	201-500	229 contacts →
	Partial evidence “Allana Buick & Bers, Inc.(ABB) is a leading Architectural Engineering firm specializing in making buildings perform better by making them energy efficient and longer lasting with…” Source: RevenueBase Database · checked Sep 30, 2026
21	Quinn Evans	Indirect evidence	Washington, DC, United StatesHQ checked Sep 30, 2026	51-200	225 contacts →
	Indirect evidence “Creators of vital places.” Source: RevenueBase Database · checked Sep 30, 2026
22	Lamar Johnson Collaborative	Partial evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	201-500	224 contacts →
	Partial evidence “Lamar Johnson Collaborative (LJC) is a full-service, integrated architecture and design firm.” Source: RevenueBase Database · checked Sep 30, 2026
23	CBT Architects	Indirect evidence	Boston, MA, United StatesHQ checked Sep 30, 2026	51-200	221 contacts →
	Indirect evidence “CBT is working nationally and internationally on projects that range from urban district master planning to large-scale mixed-use developments, civic and cultural venues…” Source: RevenueBase Database · checked Sep 30, 2026
24	Dekker	Partial evidence	Albuquerque, NM, United StatesHQ checked Sep 30, 2026	201-500	219 contacts →
	Partial evidence “Dekker is a multidisciplinary architecture firm with offices in Albuquerque, New Mexico; Phoenix, Arizona; and El Paso, Texas.” Source: RevenueBase Database · checked Sep 30, 2026
25	OZ Architecture	Partial evidence	Denver, CO, United StatesHQ checked Sep 30, 2026	51-200	213 contacts →
	Partial evidence “At OZ Architecture, we are committed to the creation of excellence in design.” Source: RevenueBase Database · checked Sep 30, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: architectural survey firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names architectural survey firms.
Partial evidence: Its own public description names part of architectural survey firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name architectural survey firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 5,259 architectural survey firms based in the United States

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Architectural survey firms based in the United States at a glance

As of Sep 30, 2026

49.8%Verified-email coverage

11.5Average contacts per company

1-10Median size (employees)

5.6%Largest-city concentration · New York

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

3,209

11-50

1,702

51-200

294

201-500

501-1,000

1,001-5,000

5,001-10,000

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 5,259 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among architectural survey firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “architectural survey firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names architectural survey firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among architectural survey firms, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 30,217 across the full list. 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 30, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Architectural survey firms by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names architectural survey firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

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

RevenueBase identified 5,259 architectural survey firms headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Farnsworth Group, INC, headquartered in Normal, tops this list with the largest team on record.

Which city has the most architectural survey firms?

New York leads with 297 headquartered companies, followed by Chicago (88) and Houston (79).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 30,217 verified decision-maker contacts tracked across these 5,259 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 30, 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 Smart Search, 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.