Company lists · Data refreshed September 2026

Top 25 Apartment building architects based in the United States

Name: Apartment building architects 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 2,698 companies tracked

RevenueBase identified 2,698 apartment building architects headquartered in the United States as of September 2026 and tracks 21,641 professional contacts across them, including 9,886 with verified work emails. New York is the largest hub.

This list covers apartment building architects 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

2,698Companies

21,641Contacts tracked

9,886Verified emails

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The 25 largest apartment building architects based in the United States

Ranked by team size

Top 25 of 2,698 apartment building architects 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 apartment building architects: 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	AO	Partial evidence	Orange, CA, United StatesHQ checked Sep 30, 2026	201-500	343 contacts →
	Partial evidence “Founded in 1974, AO is a full service Architectural, Master Planning and Design firm specializing in Retail, Residential and Mixed-Use projects.” Source: RevenueBase Database · checked Sep 30, 2026
2	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
3	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
4	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
5	ESA	Partial evidence	Nashville, TN, United StatesHQ checked Sep 30, 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 30, 2026
6	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
7	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
8	Dwell Design Studio, LLC	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 30, 2026	201-500	199 contacts →
	Indirect evidence “Dwell is methodically unconventional: designing clever spaces that aren’t outlandish or lacking purpose.” Source: RevenueBase Database · checked Sep 30, 2026
9	Marvel	Indirect evidence	New York, NY, United StatesHQ checked Sep 30, 2026	51-200	176 contacts →
	Indirect evidence “Marvel is dedicated to shaping public space, designing for institutional growth, and expanding economic and creative opportunities for a wide range of clients.” Source: RevenueBase Database · checked Sep 30, 2026
10	SWBR	Indirect evidence	Rochester, NY, United StatesHQ checked Sep 30, 2026	51-200	150 contacts →
	Indirect evidence “At SWBR, there’s one thing we never forget – that every housing community, workplace or school we design is for people.” Source: RevenueBase Database · checked Sep 30, 2026
11	Sheehan Nagle Hartray Architects, A Woolpert Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 30, 2026	51-200	148 contacts →
	Partial evidence “Sheehan Nagle Hartray Architects is an award-winning firm with offices in Chicago and London offering architectural design, interior design, and pre-design services including site…” Source: RevenueBase Database · checked Sep 30, 2026
12	Plunkett Raysich Architects, LLP	Partial evidence	Milwaukee, WI, United StatesHQ checked Sep 30, 2026	51-200	141 contacts →
	Partial evidence “Plunkett Raysich Architects, LLP is an award-winning Architectural and Interior Design firm dedicated to delivering innovative design solutions.” Source: RevenueBase Database · checked Sep 30, 2026
13	Fieldstone A&e	Partial evidence	Auburn Hills, MI, United StatesHQ checked Sep 30, 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 30, 2026
14	ODP Architecture And Design	Partial evidence	Hollywood, FL, United StatesHQ checked Sep 30, 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 30, 2026
15	Rrmm Architects	Partial evidence	Chesapeake, VA, United StatesHQ checked Sep 30, 2026	51-200	125 contacts →
	Partial evidence “RRMM Architects is recognized as a leading, dynamic design firm offering architectural, design build, interior design, and planning services.” Source: RevenueBase Database · checked Sep 30, 2026
16	Rafael Viñoly Architects	Partial evidence	New York, NY, United StatesHQ checked Sep 30, 2026	51-200	123 contacts →
	Partial evidence “Rafael Viñoly Architects was founded in New York in 1983, and has since become known internationally for its architectural and planning projects around the globe.” Source: RevenueBase Database · checked Sep 30, 2026
17	Mulhern Kulp Structural Engineering	Partial evidence	Ambler, PA, United StatesHQ checked Sep 30, 2026	51-200	118 contacts →
	Partial evidence “Mulhern+Kulp is a structural engineering firm with a unique specialty in residential design, providing services to Architects, Builders and Developers nationwide.” Source: RevenueBase Database · checked Sep 30, 2026
18	TCA Architects, INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 30, 2026	51-200	112 contacts →
	Partial evidence “Inspired by cultural narrative and evolutionary design, TCA Architects are dedicated to creating experiences that champion community and promote forward-thinking change.” Source: RevenueBase Database · checked Sep 30, 2026
19	Pelli Clarke & Partners	Partial evidence	New Haven, CT, United StatesHQ checked Sep 30, 2026	51-200	112 contacts →
	Partial evidence “Founded in 1977, Pelli Clarke & Partners has designed some of the world’s most recognizable buildings.” Source: RevenueBase Database · checked Sep 30, 2026
20	Boka Powell	Partial evidence	Dallas, TX, United StatesHQ checked Sep 30, 2026	51-200	107 contacts →
	Partial evidence “Over forty-five years in practice have established BOKA Powell as a leader in creating innovative, inspiring solutions in building design, interior design, and land planning.” Source: RevenueBase Database · checked Sep 30, 2026
21	HLZAE	Partial evidence	New York, NY, United StatesHQ checked Sep 30, 2026	51-200	105 contacts →
	Partial evidence “Buildings are our passion, new and old, inside and out.” Source: RevenueBase Database · checked Sep 30, 2026
22	Datum Engineers	Indirect evidence	Austin, TX, United StatesHQ checked Sep 30, 2026	51-200	103 contacts →
	Indirect evidence “Datum Engineers, founded in 1937, is a national firm with Texas roots, devoted exclusively to the practice of structural engineering.” Source: RevenueBase Database · checked Sep 30, 2026
23	Cube 3	Partial evidence	North Andover, MA, United StatesHQ checked Sep 30, 2026	51-200	101 contacts →
	Partial evidence “Established in 2003, CUBE 3 is well-known nationally as a design industry and innovation leader-providing thoughtful, individualized solutions for a wide range of architectural…” Source: RevenueBase Database · checked Sep 30, 2026
24	Lessard Design INC	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 30, 2026	51-200	101 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
25	Champlin Architecture	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 30, 2026	51-200	94 contacts →
	Partial evidence “Champlin Architecture is a full-service firm providing architecture, planning, interior design and structural engineering to Civic, Corporate, Healthcare, Higher Education and…” 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: apartment building architects. 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 apartment building architects.
Partial evidence: Its own public description names part of apartment building architects, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name apartment building architects. 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 2,698 apartment building architects based in the United States

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Apartment building architects based in the United States at a glance

As of Sep 30, 2026

45.7%Verified-email coverage

8.0Average contacts per company

1-10Median size (employees)

7.6%Largest-city concentration · New York

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

1,878

11-50

689

51-200

108

201-500

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 2,698 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 apartment building architects, 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 “apartment building architects”. 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 apartment building architects), 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 apartment building architects, 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, 9,886 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.

Apartment building architects 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 apartment building architects, 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 apartment building architects are there based in the United States?

RevenueBase identified 2,698 apartment building architects 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?

AO, headquartered in Orange, tops this list with the largest team on record.

Which city has the most apartment building architects?

New York leads with 206 headquartered companies, followed by Los Angeles (84) and Chicago (61).

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 9,886 verified decision-maker contacts tracked across these 2,698 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.