Company lists · Data refreshed September 2026

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

Name: Public space 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 80 companies tracked

RevenueBase identified 80 public space design firms headquartered in Washington, United States as of September 2026 and tracks 1,385 professional contacts across them, including 819 with verified work emails. New York is the largest hub.

This list covers public space 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

80Companies

1,385Contacts tracked

819Verified emails

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

Ranked by team size

Top 25 of 80 public space 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 space 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	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
2	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
3	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
4	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
5	KGD Architecture Kishimoto.Gordon.Dalaya INC	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	51-200	69 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 20, 2026
6	SKB Architecture & Design	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	55 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 20, 2026
7	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
8	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
9	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
10	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
11	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
12	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
13	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
14	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
15	Studio Alliance	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	20 contacts →
	Strong 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
16	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
17	Oehme, VAN Sweden OVS	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence “OvS is an award-winning practice of landscape architecture based in Washington, DC.” Source: RevenueBase Database · checked Sep 20, 2026
18	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
19	KGP Design Studio, LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	17 contacts →
	Partial evidence “KGP design studio is a diverse, international and multidisciplinary design firm with expertise in architecture, urban design and transit.” Source: RevenueBase Database · checked Sep 20, 2026
20	Bell Architects, PC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “BELL Architects' works closely with communities to create places where people want to be.” Source: RevenueBase Database · checked Sep 20, 2026
21	Bradley Site Design, INC	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	16 contacts →
	Partial evidence “Located in Washington, DC, Bradley Site Design is a dynamic Landscape Architecture, Civil Engineering and Planning firm founded in 1994 and dedicated to the creation of socially…” Source: RevenueBase Database · checked Sep 20, 2026
22	Perkins Eastman DC	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	15 contacts →
	Partial evidence “Founded in 2011, Perkins Eastman DC (PEDC) was formed by a group of like-minded designers dedicated to the District of Columbia's urban core.” Source: RevenueBase Database · checked Sep 20, 2026
23	Lisa & Leroy	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	14 contacts →
	Strong evidence “Lisa & Leroy is a full-service design studio that builds enduring relationships and fresh, sophisticated spaces.” Source: RevenueBase Database · checked Sep 20, 2026
24	Soto Architecture & Urban Design, Pllc	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	14 contacts →
	Partial evidence “Architecture & Urban design team located in the 14th Street corridor of Washington, DC.” Source: RevenueBase Database · checked Sep 20, 2026
25	Sroka Design Incorporated	Partial evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	1-10	13 contacts →
	Partial evidence “Skip Sroka, ASID, CID, and his design team at Sroka Design have been designing the homes of Washington D.C.'s power players for 30 years.” 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 space 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 space design firms.
Partial evidence: Its own public description names part of public space 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 space 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 80 public space design firms based in Washington, United States

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

As of Sep 20, 2026

59.1%Verified-email coverage

17.3Average contacts per company

1-10Median size (employees)

857.5%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 80 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 space 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 space 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 space 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 space 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, 819 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 space 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 space 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 space design firms are there based in Washington, United States?

RevenueBase identified 80 public space 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?

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

Which city has the most public space design firms?

New York leads with 686 headquartered companies, followed by Los Angeles (267) and San Francisco (187).

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 819 verified decision-maker contacts tracked across these 80 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.

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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.