Company lists · Data refreshed September 2026

Top 25 Public interest design firms based in Washington, United States

Name: Public interest design 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 20, 2026 129 companies tracked

RevenueBase identified 129 public interest design firms headquartered in Washington, United States as of September 2026 and tracks 3,513 professional contacts across them, including 1,489 with verified work emails. New York is the largest hub.

This list covers public interest design 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 20, 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 20, 2026 86% judged on-target in blind review

129Companies

3,513Contacts tracked

1,489Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest public interest design firms based in Washington, United States

Ranked by team size

Top 25 of 129 public interest design firms based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to public interest design 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	PAGE	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,191 contacts →
	Partial evidence “Performance by Design.” Source: RevenueBase Database · checked Sep 20, 2026
2	OTJ Architects	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	201-500	266 contacts →
	Partial evidence “OTJ Architects is a premier architecture and design practice that partners with leading organizations at key moments of transition in their development.” Source: RevenueBase Database · checked Sep 20, 2026
3	Quinn Evans	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	225 contacts →
	Indirect evidence “Creators of vital places.” Source: RevenueBase Database · checked Sep 20, 2026
4	Streetsense	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	205 contacts →
	Indirect evidence “Streetsense is a global creative collective of placeshapers, brandbuilders, and storytellers.” Source: RevenueBase Database · checked Sep 20, 2026
5	Mckissack & Mckissack	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	175 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 20, 2026
6	Torti Gallas Partners	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	142 contacts →
	Partial evidence “With a passion for architecture, urban design, planning and placemaking, Torti Gallas + Partners (TG+P) designs places and buildings that transform neighborhoods, promoting…” Source: RevenueBase Database · checked Sep 20, 2026
7	KCCT	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	87 contacts →
	Partial evidence “For 40 years, KCCT has created innovative and monumental architecture and interior design projects in more than 140 countries.” Source: RevenueBase Database · checked Sep 20, 2026
8	Hickok Cole	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	86 contacts →
	Partial evidence “Hickok Cole is a forward-focused design practice connecting bold ideas, diverse expertise, and partners with vision to do work that matters.” Source: RevenueBase Database · checked Sep 20, 2026
9	Shalom Baranes Associates	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	84 contacts →
	Indirect evidence “Shalom Baranes Associates (SBA) is a Washington, DC architectural firm with an acclaimed reputation for its expertise in residential, commercial, institutional, and governmental…” Source: RevenueBase Database · checked Sep 20, 2026
10	Freedman Consulting, LLC	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	61 contacts →
	Strong evidence “Freedman Consulting, LLC, a mission-driven firm, offers strategic consulting services to foundations, nonprofit organizations, and public interest coalitions, advising many of the…” Source: RevenueBase Database · checked Sep 20, 2026
11	Blue Star	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	54 contacts →
	Partial evidence “Blue Star is a full service design build firm working in Washington, DC.” Source: RevenueBase Database · checked Sep 20, 2026
12	David M. Schwarz Architects	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	40 contacts →
	Indirect evidence “David M.” Source: RevenueBase Database · checked Sep 20, 2026
13	FOX Architects	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	40 contacts →
	Partial evidence “FOX Architects is an integrated, award-winning architecture and interior design firm in Washington, DC.” Source: RevenueBase Database · checked Sep 20, 2026
14	MV A Architects	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	39 contacts →
	Indirect evidence “For over 40-years, MV+A has been an industry leader specializing in complex, mixed-use projects that enrich communities and bolster economies.” Source: RevenueBase Database · checked Sep 20, 2026
15	CGS Architects	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	30 contacts →
	Partial evidence “CGS Architects was founded in Georgetown in 1981 to provide services in master planning, architecture and interior design.” Source: RevenueBase Database · checked Sep 20, 2026
16	Bonstra L Haresign Architects	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	27 contacts →
	Indirect evidence “Bonstra \| Haresign ARCHITECTS is guided by the belief that architecture transforms communities and inspires people.” Source: RevenueBase Database · checked Sep 20, 2026
17	Amar Group, LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	1-10	27 contacts →
	Indirect evidence “AMAR Group, LLC is a full service architecture, civil engineering, facility assessement and Certified Third Party Inspection Company.” Source: RevenueBase Database · checked Sep 20, 2026
18	Collective Architecture	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	26 contacts →
	Partial evidence “Based out of Washington DC, Collective Architecture is a dynamic design studio specializing in Architecture and Interiors.” Source: RevenueBase Database · checked Sep 20, 2026
19	Moya Design Partners Moya	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	26 contacts →
	Partial evidence “Moya Design Partners (MOYA) is a multidisciplinary design studio known for its inclusivity, sustainability, and cultural sensitivity.” Source: RevenueBase Database · checked Sep 20, 2026
20	Hartman-Cox Architects	Partial evidence	Washington, United StatesHQ checked Sep 20, 2026	11-50	25 contacts →
	Partial evidence “Established in 1965, Hartman-Cox is a Washington, DC based firm that has continuously produced award-winning, imaginative and responsible design for institutional, educational and…” Source: RevenueBase Database · checked Sep 20, 2026
21	Barnesvanze Architects	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	22 contacts →
	Indirect evidence “Our co-founders, Anthony “Ankie” Barnes and Stephen Vanze, established Barnes Vanze Architects in 1989.” Source: RevenueBase Database · checked Sep 20, 2026
22	Studio Alliance	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	20 contacts →
	Partial evidence “Studio Alliance is a design and architecture firm driven by our mission to transform projects into timeless spaces, employing people-first and vision-centric design strategies.” Source: RevenueBase Database · checked Sep 20, 2026
23	Fillat Architecture	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	20 contacts →
	Partial evidence “FILLAT+ is a design studio headquartered in Washington, DC with offices in Baltimore, New York and San Diego.” Source: RevenueBase Database · checked Sep 20, 2026
24	JDC Construction Company LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	19 contacts →
	Indirect evidence “JDC is a project and construction management firm located in Washington, DC.” Source: RevenueBase Database · checked Sep 20, 2026
25	Cunningham Quill Architects	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	18 contacts →
	Partial evidence “Established in 1996, Cunningham \| Quill Architects has generated a diverse portfolio of projects that celebrate context and reflect a fresh and insightful approach to design.” Source: RevenueBase Database · checked Sep 20, 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: public interest design 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 public interest design firms.
Partial evidence: Its own public description names part of public interest design firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name public interest design 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 129 public interest design firms based in Washington, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,489 reachable decision-makers.

Free signup · no credit card

View the full list →

Public interest design firms based in Washington, United States at a glance

As of Sep 20, 2026

42.4%Verified-email coverage

27.2Average contacts per company

1-10Median size (employees)

558.1%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

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 for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 129 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 public interest design 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 “public interest design 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 public interest design 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 public interest design 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, 1,489 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 20, 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.

Public interest design 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 public interest design 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 public interest design firms are there based in Washington, United States?

RevenueBase identified 129 public interest design 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?

PAGE, headquartered in Washington, tops this list with the largest team on record.

Which city has the most public interest design firms?

New York leads with 720 headquartered companies, followed by Los Angeles (290) and Chicago (236).

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 1,489 verified decision-maker contacts tracked across these 129 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 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 129 public interest design firms based in Washington, United States. Start with a free account, no credit card.

Download this list →

Related lists

Public interest design firms by geography

Browse the directory

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.