Company lists · Data refreshed September 2026

Top 25 Architecture firms based in Washington, United States

Name: Architecture firms based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 301 companies tracked

RevenueBase identified 301 architecture firms headquartered in Washington, United States as of September 2026 and tracks 7,625 professional contacts across them, including 2,374 with verified work emails. New York is the largest hub.

This list covers architecture firms headquartered in Washington, 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 6, 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 6, 2026 86% judged on-target in blind review

301Companies

7,625Contacts tracked

2,374Verified emails

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The 25 largest architecture firms based in Washington, United States

Ranked by team size

Top 25 of 301 architecture firms based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to 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	The American Institute Of Architects AIA	Strong evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	n/a	1,541 contacts →
	“The American Institute of Architects (AIA) is a leading professional membership organization representing members, architecture firms, and 200+ chapters globally.” Source: company website · checked Sep 6, 2026
2	PAGE	Indirect evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	1,001-5,000	1,191 contacts →
	“Performance by Design.” Source: company website · checked Sep 6, 2026
3	RTKL	Indirect evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	1,001-5,000	351 contacts →
	“CRTKL has now joined Arcadis, a global leader in the delivery of sustainable design, engineering and consultancy solutions for natural and built assets.” Source: company website · checked Sep 6, 2026
4	OTJ Architects	Strong evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	201-500	266 contacts →
	“OTJ Architects is a premier architecture and design practice that partners with leading organizations at key moments of transition in their development.” Source: company website · checked Sep 6, 2026
5	Quinn Evans	Indirect evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	51-200	225 contacts →
	“Creators of vital places.” Source: company website · checked Sep 6, 2026
6	Setty & Associates	Indirect evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	201-500	220 contacts →
	“Established in 1984, SETTY is headquartered in Fairfax, VA, with offices in Atlanta, GA, Baltimore, MD, Charlottesville, VA, Fairfax, VA, Los Angeles, CA, New York, NY…” Source: company website · checked Sep 6, 2026
7	MCN Build	Indirect evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	51-200	183 contacts →
	“MCN Build is a purpose driven construction company with the vision of building facilities that matter―to clients, to the community, and to the environment.” Source: company website · checked Sep 6, 2026
8	Mckissack & Mckissack	Strong evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	51-200	175 contacts →
	“McKissack & McKissack is a national architectural, engineering, program and construction management firm with 30 years of experience working with clients to envision and deliver…” Source: company website · checked Sep 6, 2026
9	Torti Gallas Partners	Strong evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	51-200	142 contacts →
	“With a passion for architecture, urban design, planning and placemaking, Torti Gallas + Partners (TG+P) designs places and buildings that transform neighborhoods, promoting…” Source: company website · checked Sep 6, 2026
10	WDG	Indirect evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	51-200	139 contacts →
	“With offices in DC and Dallas, WDG's portfolio includes more than 500 major buildings across 10 practice areas, including Office, Multifamily, Mixed Use, Higher Education…” Source: company website · checked Sep 6, 2026
11	Winmar Construction	Indirect evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	51-200	117 contacts →
	“Expertise.” Source: company website · checked Sep 6, 2026
12	KCCT	Strong evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	51-200	87 contacts →
	“For 40 years, KCCT has created innovative and monumental architecture and interior design projects in more than 140 countries.” Source: company website · checked Sep 6, 2026
13	Hickok Cole	Indirect evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	51-200	86 contacts →
	“Hickok Cole is a forward-focused design practice connecting bold ideas, diverse expertise, and partners with vision to do work that matters.” Source: company website · checked Sep 6, 2026
14	Archi-Textual, Pllc	Indirect evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	n/a	86 contacts →
	“ARCHI-TEXTUAL is a full service contemporary design firm serving the Washington DC metropolitan area, proud to offer the highest level of service and responsiveness.” Source: company website · checked Sep 6, 2026
15	Shalom Baranes Associates	Strong evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	51-200	84 contacts →
	“Shalom Baranes Associates (SBA) is a Washington, DC architectural firm with an acclaimed reputation for its expertise in residential, commercial, institutional, and governmental…” Source: company website · checked Sep 6, 2026
16	KGD Architecture Kishimoto.Gordon.Dalaya INC	Strong evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	51-200	69 contacts →
	“KGD Architecture is an award-winning full-service design firm headquartered in Washington, DC, with additional offices in Arlington, Virginia; Boston, Massachusetts; and Bangkok…” Source: company website · checked Sep 6, 2026
17	Bitarchitects	Strong evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	11-50	60 contacts →
	“Architecture, Engineering & Construction” Source: company website · checked Sep 6, 2026
18	SKB Architecture & Design	Strong evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	11-50	55 contacts →
	“Established in 1982, SKB Architecture and Design (SKB) is an award-winning architecture and interior architecture firm that has become a leader in providing architectural…” Source: company website · checked Sep 6, 2026
19	Blue Star	Indirect evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	11-50	54 contacts →
	“Blue Star is a full service design build firm working in Washington, DC.” Source: company website · checked Sep 6, 2026
20	Corenic Construction	Indirect evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	51-200	46 contacts →
	“Established in 2009, Corenic Construction Group, LLC (Corenic) proudly serves the Washington, DC and Baltimore metropolitan areas as a prime contractor offering a variety of…” Source: company website · checked Sep 6, 2026
21	Global Engineering Solutions	Indirect evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	11-50	44 contacts →
	“Global Engineering Solutions is an Engineering, Program Management and Construction Management firm specializing in Mechanical, Electrical, Plumbing and Fire Protection…” Source: company website · checked Sep 6, 2026
22	Landis Architects Builders	Indirect evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	51-200	43 contacts →
	“Since 1990, Landis Architects \| Builders has been transforming houses into thoughtfully designed, beautifully built homes.” Source: company website · checked Sep 6, 2026
23	David M. Schwarz Architects	Indirect evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	11-50	40 contacts →
	“David M.” Source: company website · checked Sep 6, 2026
24	FOX Architects	Strong evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	51-200	40 contacts →
	“FOX Architects is an integrated, award-winning architecture and interior design firm in Washington, DC.” Source: company website · checked Sep 6, 2026
25	MV A Architects	Indirect evidence	Washington, DC, United StatesHQ checked Sep 6, 2026	11-50	39 contacts →
	“For over 40-years, MV+A has been an industry leader specializing in complex, mixed-use projects that enrich communities and bolster economies.” Source: company website · checked Sep 6, 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: 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 architecture firms.
Partial evidence: Its own public description names part of architecture firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name 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 301 architecture firms based in Washington, United States

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Architecture firms based in Washington, United States at a glance

As of Sep 6, 2026

31.1%Verified-email coverage

25.3Average contacts per company

1-10Median size (employees)

821.6%Largest-city concentration · New York

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

182

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 301 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 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 Washington, United States whose own description of what they do matches “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 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 architecture firms, and records with no verified work email. Companies headquartered outside Washington 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, 2,374 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 6, 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.

Architecture firms by metro in the United States

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 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 architecture firms are there based in Washington, United States?

RevenueBase identified 301 architecture firms headquartered in Washington, 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?

The American Institute Of Architects AIA, headquartered in Washington, tops this list with the largest team on record.

Which city has the most architecture firms?

New York leads with 2473 headquartered companies, followed by Los Angeles (1046) and Chicago (781).

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 2,374 verified decision-maker contacts tracked across these 301 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 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 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.