Company lists · Data refreshed September 2026

Top 25 Design consultancies based in Washington, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 322 companies tracked

RevenueBase identified 322 design consultancies headquartered in Washington, United States as of September 2026 and tracks 2,879 professional contacts across them, including 853 with verified work emails. Across the United States, New York is the largest hub for this category (2,845 companies); Washington has 322.

This list covers design consultancies 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 24, 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 24, 2026 86% judged on-target in blind review

322Companies

2,879Contacts tracked

853Verified emails

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The 25 largest design consultancies based in Washington, United States

Ranked by team size

Top 25 of 322 design consultancies based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to design consultancies: 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	RTKL	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	1,001-5,000	351 contacts →
	Partial evidence “CRTKL has now joined Arcadis, a global leader in the delivery of sustainable design, engineering and consultancy solutions for natural and built assets.” Source: RevenueBase Database · checked Sep 24, 2026
2	Throughline, INC	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	51-200	145 contacts →
	Partial evidence “Throughline specializes in harnessing the power of visual strategy and communications to transform established organizations into adaptive enterprises using design strategy…” Source: RevenueBase Database · checked Sep 24, 2026
3	The Cohen Group	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	51-200	110 contacts →
	Indirect evidence “Who We Are A talented team of experts with years of experience in both government and industry, with a passion for finding solutions and a deep understanding of the institutions…” Source: RevenueBase Database · checked Sep 24, 2026
4	KCCT	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 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 24, 2026
5	Hickok Cole	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 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 24, 2026
6	Shalom Baranes Associates	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 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 24, 2026
7	History Factory	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	11-50	75 contacts →
	Indirect evidence “History Factory works with the world’s best companies to use their history and heritage to drive measurable business results.” Source: RevenueBase Database · checked Sep 24, 2026
8	KGD Architecture Kishimoto.Gordon.Dalaya INC	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 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 24, 2026
9	SKB Architecture & Design	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 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 24, 2026
10	FOX Architects	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 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 24, 2026
11	Sshape	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	11-50	33 contacts →
	Indirect evidence “A dynamic firm, with innovative ideas, led by experienced hands.” Source: RevenueBase Database · checked Sep 24, 2026
12	ZOË Feldman Design	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	11-50	32 contacts →
	Partial evidence “At Zoë Feldman Design, we believe great design is about more than beauty-it’s about creating spaces that reflect who you are and shape how you live.” Source: RevenueBase Database · checked Sep 24, 2026
13	CGS Architects	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 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 24, 2026
14	Design Army	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	11-50	27 contacts →
	Partial evidence “Founded in 2003 by Pum and Jake Lefebure, Design Army sees authenticity at every touch point.” Source: RevenueBase Database · checked Sep 24, 2026
15	Collective Architecture	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 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 24, 2026
16	Moya Design Partners Moya	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 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 24, 2026
17	George Sexton Associates	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	11-50	24 contacts →
	Partial evidence “George Sexton Associates is a lighting design and museum design firm in Washington, DC.” Source: RevenueBase Database · checked Sep 24, 2026
18	Outright	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	11-50	23 contacts →
	Indirect evidence “We deliver elevated creative for modern brands” Source: RevenueBase Database · checked Sep 24, 2026
19	North Arrow, INC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	11-50	22 contacts →
	Indirect evidence “DUNS Number: 08-001-8268 CAGE Code: 7GN69 SBA Certified Small Business District of Columbia Certified Business Enterprise (CBE) Metropolitan Washington Airports Authority Local…” Source: RevenueBase Database · checked Sep 24, 2026
20	OPX	Indirect evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	11-50	22 contacts →
	Indirect evidence “We make good companies work better.” Source: RevenueBase Database · checked Sep 24, 2026
21	Designforce	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	11-50	21 contacts →
	Partial evidence “DesignForce is a purpose-driven consultancy focused on workforce strategy and career development across the architecture, engineering, and construction (AEC) industry.” Source: RevenueBase Database · checked Sep 24, 2026
22	Fillat Architecture	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 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 24, 2026
23	KGP Design Studio, LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 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 24, 2026
24	Kinetik	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	1-10	15 contacts →
	Partial evidence “KINETIK has developed effective, award-winning design solutions for educational institutions, businesses and nonprofit organizations serving diverse constituencies for more than…” Source: RevenueBase Database · checked Sep 24, 2026
25	Lisa & Leroy	Partial evidence	Washington, DC, United StatesHQ checked Sep 24, 2026	11-50	14 contacts →
	Partial evidence “Lisa & Leroy is a full-service design studio that builds enduring relationships and fresh, sophisticated spaces.” Source: RevenueBase Database · checked Sep 24, 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: design consultancies. 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 design consultancies.
Partial evidence: Its own public description names part of design consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name design consultancies. 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 322 design consultancies based in Washington, United States

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Design consultancies based in Washington, United States at a glance

As of Sep 24, 2026

29.6%Verified-email coverage

8.9Average contacts per company

1-10Median size (employees)

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

250

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 322 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 design consultancies, 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 “design consultancies”. 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 design consultancies), 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 design consultancies, 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, 853 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 24, 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.

Design consultancies 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 design consultancies, 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 design consultancies are there based in Washington, United States?

RevenueBase identified 322 design consultancies 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?

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

Which city in the United States has the most design consultancies?

New York leads the United States with 2,845 headquartered companies, followed by Los Angeles (1,445) and Chicago (947). Washington has 322.

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 853 verified decision-maker contacts tracked across these 322 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 24, 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.