Company lists · Data refreshed September 2026

Top 25 Heritage architecture firms based in the United States

Name: Heritage 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 16, 2026 3,723 companies tracked

RevenueBase identified 3,723 heritage architecture firms headquartered in the United States as of September 2026 and tracks 35,555 professional contacts across them, including 16,244 with verified work emails. New York is the largest hub.

This list covers heritage architecture 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 16, 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 16, 2026 86% judged on-target in blind review

3,723Companies

35,555Contacts tracked

16,244Verified emails

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The 25 largest heritage architecture firms based in the United States

Ranked by team size

Top 25 of 3,723 heritage architecture firms based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to heritage architecture 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	TVS	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 16, 2026	51-200	467 contacts →
	Partial evidence “TVS is an award-winning architecture and interior design firm headquartered in Atlanta, GA with global project expertise.” Source: RevenueBase Database · checked Sep 16, 2026
2	Ramsa Robert A.M. Stern Architects	Indirect evidence	New York, NY, United StatesHQ checked Sep 16, 2026	201-500	352 contacts →
	Indirect evidence “RAMSA \| Robert A.M.” Source: RevenueBase Database · checked Sep 16, 2026
3	SCB	Partial evidence	Chicago, IL, United StatesHQ checked Sep 16, 2026	201-500	343 contacts →
	Partial evidence “SCB is an architecture, planning, interior and urban design firm.” Source: RevenueBase Database · checked Sep 16, 2026
4	Cooper Carry	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 16, 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 16, 2026
5	Bulley & Andrews	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 16, 2026	201-500	326 contacts →
	Indirect evidence “It’s not just what we build, but why.” Source: RevenueBase Database · checked Sep 16, 2026
6	BSB Design	Indirect evidence	West Des Moines, IA, United StatesHQ checked Sep 16, 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 16, 2026
7	ESA	Partial evidence	Nashville, TN, United StatesHQ checked Sep 16, 2026	51-200	273 contacts →
	Partial evidence “ESa is a nationally recognized architecture and design firm based in Nashville, Tenn, specializing in architecture, interior design, master planning and space planning.” Source: RevenueBase Database · checked Sep 16, 2026
8	Lionakis	Partial evidence	Sacramento, CA, United StatesHQ checked Sep 16, 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 16, 2026
9	Baskervill	Partial evidence	Richmond, VA, United StatesHQ checked Sep 16, 2026	51-200	236 contacts →
	Partial evidence “Founded in 1897, Baskervill is one of the nation’s oldest continually operating architectural firms with a growing global footprint.” Source: RevenueBase Database · checked Sep 16, 2026
10	Quinn Evans	Indirect evidence	Washington, DC, United StatesHQ checked Sep 16, 2026	51-200	225 contacts →
	Indirect evidence “Creators of vital places.” Source: RevenueBase Database · checked Sep 16, 2026
11	CBT Architects	Indirect evidence	Boston, MA, United StatesHQ checked Sep 16, 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 16, 2026
12	Wiley Wilson	Partial evidence	Lynchburg, VA, United StatesHQ checked Sep 16, 2026	51-200	213 contacts →
	Partial evidence “Wiley\|Wilson is a full-service architecture and engineering firm, specializing in creating innovative and functional design solutions for our government, institutional, and…” Source: RevenueBase Database · checked Sep 16, 2026
13	OZ Architecture	Partial evidence	Denver, CO, United StatesHQ checked Sep 16, 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 16, 2026
14	Beyer Blinder Belle	Partial evidence	New York, NY, United StatesHQ checked Sep 16, 2026	51-200	198 contacts →
	Partial evidence “Founded in 1968, Beyer Blinder Belle Architects is an award-winning architecture, planning, and interiors with offices in New York City, Washington DC, Boston, and Miami.” Source: RevenueBase Database · checked Sep 16, 2026
15	Davis Partnership Architects	Indirect evidence	Denver, CO, United StatesHQ checked Sep 16, 2026	51-200	183 contacts →
	Indirect evidence “Davis Partnership Architects provides innovative design solutions, earning the trust and respect of our clients and peers alike.” Source: RevenueBase Database · checked Sep 16, 2026
16	Mancini Duffy	Partial evidence	New York, NY, United StatesHQ checked Sep 16, 2026	51-200	183 contacts →
	Partial evidence “National design firm based in NYC with a 100+-year-old history and tech-forward approach specializing in architecture, planning, and interior design.” Source: RevenueBase Database · checked Sep 16, 2026
17	Sargenti Architects	Partial evidence	Paramus, NJ, United StatesHQ checked Sep 16, 2026	51-200	178 contacts →
	Partial evidence “Sargenti sets standards of distinction through meritorious business practice and exclusivity, providing architecture, engineering, and design that leaves a lasting impression…” Source: RevenueBase Database · checked Sep 16, 2026
18	Ennead Architects	Indirect evidence	New York, NY, United StatesHQ checked Sep 16, 2026	51-200	171 contacts →
	Indirect evidence “Ennead, a CannonDesign Company, is an internationally acclaimed 160+ person practice based in New York City with offices in Los Angeles and Shanghai.” Source: RevenueBase Database · checked Sep 16, 2026
19	LMN Architects	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	51-200	170 contacts →
	Indirect evidence “About LMN Architects Seattle-based LMN Architects specializes in the planning and design of significant public and private facilities, including convention centers, cultural arts…” Source: RevenueBase Database · checked Sep 16, 2026
20	Evergreene Architectural Arts, INC	Partial evidence	Brooklyn, NY, United StatesHQ checked Sep 16, 2026	201-500	147 contacts →
	Partial evidence “Since 1978 EverGreene Architectural Arts has been providing pre-construction, construction and new design services for some of the world's most memorable buildings.” Source: RevenueBase Database · checked Sep 16, 2026
21	Sfcs Architects	Partial evidence	Roanoke, VA, United StatesHQ checked Sep 16, 2026	51-200	145 contacts →
	Partial evidence “SFCS is a full-service architectural, engineering, planning, and interior design firm serving clients nationwide.” Source: RevenueBase Database · checked Sep 16, 2026
22	Marmol Radziner	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 16, 2026	51-200	144 contacts →
	Partial evidence “Established in 1989, Marmol Radziner is an award-winning Los Angeles-based design-build architecture and construction firm that integrates architectural design with a full range…” Source: RevenueBase Database · checked Sep 16, 2026
23	Fieldstone A&e	Partial evidence	Auburn Hills, MI, United StatesHQ checked Sep 16, 2026	51-200	140 contacts →
	Partial evidence “Our Story: Fieldstone Architecture & Engineering is full-service A&E firm focused on providing tailored services to the most trusted builders and developers in the United States.” Source: RevenueBase Database · checked Sep 16, 2026
24	AHL	Partial evidence	Honolulu, HI, United StatesHQ checked Sep 16, 2026	51-200	131 contacts →
	Partial evidence “AHL is a multi-disciplinary architecture firm with local and international experience to deliver the full spectrum of design services to best serve the places and spaces in which…” Source: RevenueBase Database · checked Sep 16, 2026
25	ODP Architecture And Design	Partial evidence	Hollywood, FL, United StatesHQ checked Sep 16, 2026	51-200	126 contacts →
	Partial evidence “Founded in 2004 and headquartered in Hollywood, FL, ODP is an award-winning architecture and interior design firm.” Source: RevenueBase Database · checked Sep 16, 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: heritage architecture 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 heritage architecture firms.
Partial evidence: Its own public description names part of heritage architecture firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name heritage architecture 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 3,723 heritage architecture firms based in the United States

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Heritage architecture firms based in the United States at a glance

As of Sep 16, 2026

45.7%Verified-email coverage

9.6Average contacts per company

1-10Median size (employees)

7.9%Largest-city concentration · New York

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

2,423

11-50

1,107

51-200

166

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 3,723 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 heritage architecture 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 “heritage architecture 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 heritage architecture 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 heritage architecture 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, 16,244 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 16, 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.

Heritage architecture 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 heritage architecture 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 heritage architecture firms are there based in the United States?

RevenueBase identified 3,723 heritage architecture 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?

TVS, headquartered in Atlanta, tops this list with the largest team on record.

Which city has the most heritage architecture firms?

New York leads with 295 headquartered companies, followed by Los Angeles (85) and Chicago (63).

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 16,244 verified decision-maker contacts tracked across these 3,723 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 16, 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.