Company lists · Data refreshed September 2026

Top 23 Sustainable design agencies based in Washington, United States

Name: Sustainable design agencies based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 46 companies tracked

RevenueBase identified 46 company matches for sustainable design agencies associated with Washington, United States as of September 2026 and tracks 1,341 professional contacts across them, including 244 with verified work emails. Across the United States, New York is the largest hub for this category (289 companies); Washington has 46.

This list covers company matches for sustainable design agencies associated with Washington, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 22, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 22, 2026 How this list was built

46Companies

1,341Contacts tracked

244Verified emails

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The 23 largest sustainable design agencies based in Washington, United States

Ranked by team size

Top 23 of 46 company matches for sustainable design agencies based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	RTKL	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	1,001-5,000	351 contacts →
	Exact match “CRTKL has now joined Arcadis, a global leader in the delivery of sustainable design, engineering and consultancy solutions for natural and built assets.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2	Baumann Consulting	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	51-200	63 contacts →
	Exact match “Baumann Consulting is driven to deliver solutions for a carbon-neutral real estate industry.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3	Teal Media	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	11-50	52 contacts →
	Exact match “Teal Media is a full-service creative agency with a conscience.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4	David M. Schwarz Architects	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	11-50	40 contacts →
	Exact match “David M.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5	Collective Architecture	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	11-50	26 contacts →
	Exact match “Based out of Washington DC, Collective Architecture is a dynamic design studio specializing in Architecture and Interiors.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6	Moya Design Partners Moya	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	11-50	26 contacts →
	Exact match “Moya Design Partners (MOYA) is a multidisciplinary design studio known for its inclusivity, sustainability, and cultural sensitivity.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7	Browning Environmental Communications	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	11-50	24 contacts →
	Exact match “Browning Environmental Communications (Browning) is an international full-service marketing communications agency specializing in clean energy and environmental sustainability.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8	Wide EYE	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	11-50	24 contacts →
	Exact match “Wide Eye is a brand & digital design agency relentlessly dedicated to propelling purpose-driven organizations forward.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9	Fillat Architecture	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	11-50	20 contacts →
	Exact match “FILLAT+ is a design studio headquartered in Washington, DC with offices in Baltimore, New York and San Diego.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10	Bell Architects, PC	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	11-50	16 contacts →
	Exact match “BELL Architects' works closely with communities to create places where people want to be.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11	Nahra Design Group	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	1-10	9 contacts →
	Exact match “Nahra Design Group is an award-winning, full-service Architecture and Interior design firm.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12	Paradigmoffice	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	1-10	8 contacts →
	Exact match “At PARADIGMoffice we are architects, designers, and researchers who passionately believe that everyone should have thoughtfully designed environments that nourish and sustain…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13	Istudio Architects	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	1-10	8 contacts →
	Exact match “ISTUDIO was founded with a dedication to creating artful, sustainable communities.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14	Adaptive Green	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	11-50	4 contacts →
	Exact match “Adaptive Green designs, installs and maintains green building components such as green roofs, solar panels, green walls and sustainable water management systems.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15	Ultra Studio	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	1-10	4 contacts →
	Exact match “A design studio based in Washington, DC, that brings exceptional creative work to forward-thinking brands and institutions.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16	Kube Architecture	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	1-10	4 contacts →
	Exact match “KUBE architecture is a modern architecture studio that challenges the norms of daily life and attempts to reinterpret ways of working and living in the built environment.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17	To BE Done Studio	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	1-10	3 contacts →
	Exact match “To Be Done Studio harnesses the inherent goodness in people and the power of design to create sustainable solutions to the pressing problems that our world faces.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18	Studio Upwall Architects	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	1-10	3 contacts →
	Exact match “Our goal is to create healthy indoor environments that are regenerative and infused with natural daylight and ventilation and are designed to maximize access to outdoor spaces.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19	WLC Design	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	1-10	3 contacts →
	Exact match “WLC Design is a full-service design and development firm delivering integrated solutions across residential, commercial, and community-based real estate.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20	Studio Laan, PC	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	1-10	3 contacts →
	Exact match “Studio Laan, PC is a Washington, DC-based small, woman-owned business.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21	Checa Architects	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	1-10	2 contacts →
	Exact match “A full service firm creating exquisitely crafted, modern, ecologically sensitive, light-filled spaces and homes that lift the human spirit.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22	Black Friday Collective	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	1-10	1 contacts →
	Exact match “We are a collective of diverse designers, problem solvers, and creative thinkers.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23	Demian Wilbur Architects	Exact match	Washington, DC, United StatesHQ recorded Sep 22, 2026	1-10	1 contacts →
	Exact match “Formed in 2005 by Eric Wilbur and Ziad Demian, demian\wilbur\architects studio is a certified small business entity located in Capital Hill serving the greater Washington DC…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “sustainable design agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 23 of 46 sustainable design agencies based in Washington, United States

See the full list, filter by size, metro and specialty, and access 244 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sustainable design agencies based in Washington, United States at a glance

As of Sep 22, 2026

18.2%Verified-email coverage

29.2Average contacts per company

1-10Median size (employees)

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 46 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Washington, United States whose business descriptions match “sustainable design agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 244 professional contacts with verified work emails across the full matched dataset. 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 22, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Sustainable design agencies by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “sustainable design agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sustainable design agencies are there based in Washington, United States?

RevenueBase identified 46 company matches for sustainable design agencies associated with Washington, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

RTKL tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most sustainable design agencies?

New York leads the United States with 289 company records, followed by Los Angeles (142) and San Francisco (120). Washington has 46.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 244 professional contacts with verified work emails tracked across these 46 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 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 SmartSearch, 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.