Company lists · Data refreshed September 2026

Top 25 Sustainable design agencies worldwide

Name: Sustainable design agencies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 25,853 companies tracked

RevenueBase identified 25,853 sustainable design agencies worldwide as of September 2026 and tracks 169,533 professional contacts across them, including 52,133 with verified work emails. The United States is the largest market and London the largest hub.

This list covers sustainable design agencies worldwide, 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 22, 2026. Country and city lists for sustainable design agencies follow the table.

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 22, 2026 86% judged on-target in blind review

25,853Companies

169,533Contacts tracked

52,133Verified emails

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The 25 largest sustainable design agencies worldwide

Ranked by team size

Top 25 of 25,853 sustainable design agencies worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable design agencies: 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	Foster Partners	Strong evidence	London, United KingdomHQ checked Sep 22, 2026	1,001-5,000	2,869 contacts →
	Strong evidence “Foster + Partners is a global studio for architecture, urbanism and design, all rooted in sustainability and founded by Norman Foster in 1967.” Source: RevenueBase Database · checked Sep 22, 2026
2	DLR Group	Partial evidence	30 Offices, MN, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,992 contacts →
	Partial evidence “DLR Group is an integrated design firm delivering architecture, engineering, interiors, planning, and building optimization for new construction, renovation, and adaptive reuse.” Source: RevenueBase Database · checked Sep 22, 2026
3	Cannondesign	Partial evidence	New York, NY, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,660 contacts →
	Partial evidence “CannonDesign is a different kind of design firm, where architecture, strategy, experience, innovation and social good converge to create meaningful impact.” Source: RevenueBase Database · checked Sep 22, 2026
4	OLA	Strong evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	n/a	1,145 contacts →
	Strong evidence “OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.” Source: RevenueBase Database · checked Sep 22, 2026
5	Perkins Eastman	Partial evidence	New York, NY, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,083 contacts →
	Partial evidence “Perkins Eastman is a global design practice founded on the belief that design has the power to enhance people’s lives and safeguard the environment.” Source: RevenueBase Database · checked Sep 22, 2026
6	TSE	Partial evidence	São Paulo/sp, BrazilHQ checked Sep 22, 2026	5,001-10,000	1,067 contacts →
	Partial evidence “Somos a TSE - Total Sustainable Engineering.” Source: RevenueBase Database · checked Sep 22, 2026
7	KPF	Partial evidence	New York, NY, United StatesHQ checked Sep 22, 2026	501-1,000	970 contacts →
	Partial evidence “KPF is dedicated to transforming cities through impactful design, collaborating closely with the world’s most forward-thinking clients to create high performing, carefully crafted…” Source: RevenueBase Database · checked Sep 22, 2026
8	NORR	Partial evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	501-1,000	907 contacts →
	Partial evidence “NORR is a global team of 750 architects, engineers, planners, and interior designers creating design strategies and solutions that express the unique vision of every project.” Source: RevenueBase Database · checked Sep 22, 2026
9	Lpa, INC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 22, 2026	501-1,000	728 contacts →
	Strong evidence “Since LPA was founded in 1965, it's been our mission to deliver timeless, sustainable designs that benefit the environment, generate lasting value, enrich the human experience and…” Source: RevenueBase Database · checked Sep 22, 2026
10	Henning Larsen	Partial evidence	Copenhagen V, United StatesHQ checked Sep 22, 2026	501-1,000	629 contacts →
	Partial evidence “As an experienced studio with a global presence, a balance of hands-on capabilities and artistic sensitivity is at the core of our design language.” Source: RevenueBase Database · checked Sep 22, 2026
11	ADP Consulting	Strong evidence	Melbourne, AustraliaHQ checked Sep 22, 2026	201-500	468 contacts →
	Strong evidence “ADP Consulting, an Ayesa company, is a sustainability-led engineering consultancy on a quest to inspire a better world through influence and design.” Source: RevenueBase Database · checked Sep 22, 2026
12	Lg2	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 22, 2026	201-500	461 contacts →
	Indirect evidence “LG2 is a creative agency that firmly believes its work must serve progress.” Source: RevenueBase Database · checked Sep 22, 2026
13	KTGY	Partial evidence	Irvine, CA, United StatesHQ checked Sep 22, 2026	201-500	461 contacts →
	Partial evidence “Design Lives at KTGY.” Source: RevenueBase Database · checked Sep 22, 2026
14	Callisonrtkl	Strong evidence	Amsterdam, DC, NetherlandsHQ checked Sep 22, 2026	1,001-5,000	452 contacts →
	Strong 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 22, 2026
15	Donker Groep	Indirect evidence	Sneek, NetherlandsHQ checked Sep 22, 2026	501-1,000	425 contacts →
	Indirect evidence “Welcome to Donker Groep.” Source: RevenueBase Database · checked Sep 22, 2026
16	Design Workshop	Partial evidence	Denver, CO, United StatesHQ checked Sep 22, 2026	51-200	418 contacts →
	Partial evidence “Design Workshop is a 100% employee-owned international design studio spanning the fields of landscape architecture, urban design, planning, economics, environmental graphic…” Source: RevenueBase Database · checked Sep 22, 2026
17	Sheppard Robson	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	201-500	391 contacts →
	Partial evidence “Sheppard Robson is an ever-evolving collective of architects, interior designers and masterplanners.” Source: RevenueBase Database · checked Sep 22, 2026
18	Estudio Architecture	Partial evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	n/a	390 contacts →
	Partial evidence “eStudio is a specialized full service architectural and boutique design firm.” Source: RevenueBase Database · checked Sep 22, 2026
19	LEMAY	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 22, 2026	201-500	373 contacts →
	Indirect evidence “Architectes \| Créateurs de changement Depuis plus de 60 ans, nous visons à redessiner l’avenir à travers la conception d’espaces de vie et de possibilités.” Source: RevenueBase Database · checked Sep 22, 2026
20	AESG	Partial evidence	London, United Arab EmiratesHQ checked Sep 22, 2026	201-500	373 contacts →
	Partial evidence “AESG is an international Consultancy, Engineering and Advisory firm committed to driving sustainability in the built environment and beyond.” Source: RevenueBase Database · checked Sep 22, 2026
21	EMM Consulting PTY Limited	Partial evidence	St Leonards, AustraliaHQ checked Sep 22, 2026	201-500	361 contacts →
	Partial evidence “At EMM, we believe that a sustainable future is achievable, and we are dedicated to helping our clients and the community make it a reality.” Source: RevenueBase Database · checked Sep 22, 2026
22	RTKL	Strong evidence	Washington, DC, United StatesHQ checked Sep 22, 2026	1,001-5,000	351 contacts →
	Strong 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 22, 2026
23	Turley	Indirect evidence	Manchester, United KingdomHQ checked Sep 22, 2026	201-500	348 contacts →
	Indirect evidence “Offering expert advisory services for the built environment and beyond, we work collaboratively with our clients to deliver places and communities that thrive.” Source: RevenueBase Database · checked Sep 22, 2026
24	Morphogenesis	Strong evidence	New Delhi, IndiaHQ checked Sep 22, 2026	201-500	348 contacts →
	Strong evidence “Morphogenesis is a leading design and consulting firm operating at the intersection of architecture, urban planning, and sustainability, with a Pan-India presence.” Source: RevenueBase Database · checked Sep 22, 2026
25	ASD SKY	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 22, 2026	201-500	344 contacts →
	Partial evidence “Established in 1963, ASD \| SKY has evolved into a multi-disciplinary design firm offering interiors, architectural, landscape, and graphic design services to a variety of…” Source: RevenueBase Database · checked Sep 22, 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: sustainable design agencies. 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 sustainable design agencies.
Partial evidence: Its own public description names part of sustainable design agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable design agencies. 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 25,853 sustainable design agencies worldwide

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Sustainable design agencies worldwide at a glance

As of Sep 22, 2026

30.8%Verified-email coverage

6.6Average contacts per company

1-10Median size (employees)

2.6%Largest-city concentration · London

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

20,052

11-50

4,716

51-200

765

201-500

149

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 sustainable design agencies, 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.
Coverage: Every country. Country and city lists for sustainable design agencies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “sustainable design agencies”. 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 sustainable design agencies), 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 sustainable design agencies, and records with no verified work email.
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, 52,133 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 22, 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.

Sustainable design agencies by location

104 lists · largest first

Every Sustainable design agencies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 sustainable design agencies, 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 sustainable design agencies are there worldwide?

RevenueBase identified 25,853 sustainable design agencies worldwide 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?

Foster Partners, headquartered in London, tops this list with the largest team on record.

Which country has the most sustainable design agencies?

The United States leads with 3,937 companies, followed by the United Kingdom (1,914) and India (1,776). Every sustainable design agencies list by country and city is linked on this page.

Which city has the most sustainable design agencies?

London leads with 677 headquartered companies, followed by Paris (357) and New York (290).

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 52,133 verified decision-maker contacts tracked across these 25,853 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 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 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.