Company lists · Data refreshed November 2026

Top 25 Sustainable building architects worldwide

Name: Sustainable building architects worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 32,721 companies tracked

RevenueBase identified 32,721 company matches for sustainable building architects worldwide as of November 2026 and tracks 333,266 professional contacts across them, including 110,589 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for sustainable building architects worldwide, 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 November 6, 2026. Country and city lists for sustainable building architects follow the table.

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 Nov 6, 2026 How this list was built

32,721Companies

333,266Contacts tracked

110,589Verified emails

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The 25 largest sustainable building architects worldwide

Ranked by team size

Top 25 of 32,721 company matches for sustainable building architects worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Ramboll	Exact match	Copenhagen, DenmarkHQ recorded Nov 6, 2026	10001+	16,684 contacts →
	Exact match “Ramboll is a global architecture, engineering and consultancy company founded in Denmark in 1945.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Perkins&will	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,204 contacts →
	Exact match “Since 1935, we’ve believed that design has the power to make the world a better, more beautiful place.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	HOK	Exact match	New York, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,828 contacts →
	Exact match “HOK is a global interdisciplinary design firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Hks, INC	Exact match	Dallas, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,694 contacts →
	Exact match “We are a global firm of architects, designers, planners and advisors who create places noted for their beauty and performance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	KEO International Consultants	Exact match	Safat, KuwaitHQ recorded Nov 6, 2026	1,001-5,000	2,198 contacts →
	Exact match “From shaping iconic skylines to crafting sustainable communities, KEO builds legacies for a better tomorrow.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Skidmore, Owings & Merrill SOM	Exact match	New York, DC, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,130 contacts →
	Exact match “Skidmore, Owings & Merrill (SOM) is a global practice of architects, designers, engineers, and planners, responsible for some of the world’s most technically and environmentally…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	DLR Group	Exact match	30 Offices, TN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,118 contacts →
	Exact match “DLR Group is an integrated design firm delivering architecture, engineering, interiors, planning, and building optimization for new construction, renovation, and adaptive reuse.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	IMEG	Exact match	Rock Island, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,116 contacts →
	Exact match “Leaders in Engineering and Innovation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	IBI Group	Exact match	Amsterdam, FL, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	1,582 contacts →
	Exact match “IBI Group is a technology-driven design firm with global architecture, engineering, planning and technology expertise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	PAGE	Exact match	Washington, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,456 contacts →
	Exact match “Performance by Design.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	The Beck Group	Exact match	Dallas, FL, United StatesHQ recorded Nov 6, 2026	501-1,000	1,178 contacts →
	Exact match “We integrate architecture, construction, sustainability, and technology to transform how our clients design and build.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	OLA	Exact match	Austin, TX, United StatesHQ recorded Nov 6, 2026	n/a	1,164 contacts →
	Exact match “OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Morshedy Group	Exact match	Kattameya, EgyptHQ recorded Nov 6, 2026	5,001-10,000	1,161 contacts →
	Exact match “Since our foundation in 1983, Morshedy Group has been in the right place at the right time.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	KPF	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	1,091 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Dialog	Exact match	Calgary, CA, CanadaHQ recorded Nov 6, 2026	501-1,000	1,084 contacts →
	Exact match “Hello.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Dewan Architects & Engineers	Exact match	Baghdad, United Arab EmiratesHQ recorded Nov 6, 2026	501-1,000	1,000 contacts →
	Exact match “Dewan Architects + Engineers is a global, multidisciplinary design consultancy firm founded in 1984 in Abu Dhabi, UAE.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	NORR	Exact match	Toronto, ON, CanadaHQ recorded Nov 6, 2026	501-1,000	994 contacts →
	Exact match “NORR is a global team of 800 architects, engineers, planners, and interior designers creating design strategies and solutions that express the unique vision of every project.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Grontmij Group	Exact match	Glostrup, SwedenHQ recorded Nov 6, 2026	10001+	923 contacts →
	Exact match “Grontmij is part of Sweco.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Archetype Group	Exact match	Ho Chi Minh City, VietnamHQ recorded Nov 6, 2026	1,001-5,000	885 contacts →
	Exact match “Archetype Group is a leading international construction consultancy company, we are shaping buildings that last with a full range of consulting services: Architecture & Master…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	B H Architects	Exact match	Toronto, ON, CanadaHQ recorded Nov 6, 2026	201-500	850 contacts →
	Exact match “B+H Architects is a global, award-winning firm with a 70+ year legacy of building creative solutions for clients through the delivery of architecture, interior design, landscape…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	PAE	Exact match	Portland, NV, United StatesHQ recorded Nov 6, 2026	201-500	843 contacts →
	Exact match “PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	ZGF Architects	Exact match	Portland, OR, United StatesHQ recorded Nov 6, 2026	501-1,000	841 contacts →
	Exact match “With our origins in Oregon, attention to craft and beauty is elemental to the ZGF culture.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Introba	Exact match	St. Louis, United StatesHQ recorded Nov 6, 2026	1,001-5,000	829 contacts →
	Exact match “Introba is one of the world’s largest building engineering and consulting firms with more than employees in offices across the United States, Canada, the United Kingdom, Serbia…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Saudi Diyar Consultants	Exact match	Jeddah, Saudi ArabiaHQ recorded Nov 6, 2026	501-1,000	814 contacts →
	Exact match “Architects and Engineers Saudi Diyar Consultants is one of the leading multidiscipline design firms in the Middle East with a diverse portfolio of commercial, institutional…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	RSP	Exact match	SingaporeHQ recorded Nov 6, 2026	1,001-5,000	775 contacts →
	Exact match “Headquartered in Singapore, RSP Architects Planners & Engineers (Pte) Ltd (RSP) is a global multidisciplinary architectural and engineering design group, with over 65 years of…” Recorded in the RevenueBase company graph · Nov 6, 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 building architects”. 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 25 of 32,721 sustainable building architects worldwide

See the full list, filter by size, metro and specialty, and access 110,589 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sustainable building architects worldwide at a glance

As of Nov 6, 2026

33.2%Verified-email coverage

10.2Average contacts per company

1-10Median size (employees)

1.7%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

22,126

11-50

8,308

51-200

1,370

201-500

266

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

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.
Coverage: Every country. Country and city lists for sustainable building architects are linked below.
What qualifies: Company records worldwide whose business descriptions match “sustainable building architects” 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. 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 110,589 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 November 6, 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 building architects by location

174 lists · largest first

Every Sustainable building architects 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 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 building architects”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sustainable building architects are there worldwide?

RevenueBase identified 32,721 company matches for sustainable building architects worldwide as of November 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?

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

Which country has the most sustainable building architects?

The United States leads with 6,167 companies, followed by India (2,313) and Germany (2,078). Every sustainable building architects list by country and city is linked on this page.

Which city has the most sustainable building architects?

London leads with 552 company records, followed by New York (394) and Paris (337).

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 110,589 professional contacts with verified work emails tracked across these 32,721 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 November 6, 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.