Company lists · Data refreshed October 2026

Top 25 Energy efficient building architects worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 31,634 companies tracked

RevenueBase identified 31,634 company matches for energy efficient building architects worldwide as of October 2026 and tracks 328,332 professional contacts across them, including 113,106 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for energy efficient 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 October 12, 2026. Country and city lists for energy efficient 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 Oct 12, 2026 How this list was built

31,634Companies

328,332Contacts tracked

113,106Verified emails

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The 25 largest energy efficient building architects worldwide

Ranked by team size

Top 25 of 31,634 company matches for energy efficient building architects worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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	Stantec	Exact match	Edmonton, AB, CanadaHQ recorded Oct 12, 2026	10001+	29,839 contacts →
	Exact match “Stantec empowers clients, people, and communities to rise to the world’s greatest challenges at a time when the world faces more unprecedented concerns than ever before.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Julius Berger Nigeria PLC	Exact match	Utako, NigeriaHQ recorded Oct 12, 2026	10001+	3,467 contacts →
	Exact match “Julius Berger Nigeria Plc is a leading construction company offering integrated construction solutions and related services.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	HOK	Exact match	New York, NY, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,772 contacts →
	Exact match “HOK is a global interdisciplinary design firm.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Mckinstry	Exact match	Seattle, WA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,293 contacts →
	Exact match “We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	KEO International Consultants	Exact match	Safat, KuwaitHQ recorded Oct 12, 2026	1,001-5,000	2,111 contacts →
	Exact match “From shaping iconic skylines to crafting sustainable communities, KEO builds legacies for a better tomorrow.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Skidmore, Owings & Merrill SOM	Exact match	New York, NY, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,102 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 · Oct 12, 2026 · View company records in RevenueBase
7	IMEG	Exact match	Rock Island, IL, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,064 contacts →
	Exact match “Leaders in Engineering and Innovation.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	DLR Group	Exact match	30 Offices, MN, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,039 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 · Oct 12, 2026 · View company records in RevenueBase
9	IBI Group	Exact match	Amsterdam, ON, NetherlandsHQ recorded Oct 12, 2026	1,001-5,000	1,539 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 · Oct 12, 2026 · View company records in RevenueBase
10	Athié Wohnrath	Exact match	São Paulo, BrazilHQ recorded Oct 12, 2026	501-1,000	1,172 contacts →
	Exact match “Para nós do Grupo a\|w, projetos impactantes são aqueles que traduzem o jeito de ser das pessoas e os valores das empresas.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	OLA	Exact match	Austin, TX, United StatesHQ recorded Oct 12, 2026	n/a	1,150 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 · Oct 12, 2026 · View company records in RevenueBase
12	Hoare LEA	Exact match	London, United KingdomHQ recorded Oct 12, 2026	501-1,000	1,146 contacts →
	Exact match “We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	The Beck Group	Exact match	Dallas, TX, United StatesHQ recorded Oct 12, 2026	501-1,000	1,135 contacts →
	Exact match “We integrate architecture, construction, sustainability, and technology to transform how our clients design and build.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	BTP Consultants	Exact match	Montigny-le-bretonneux, FranceHQ recorded Oct 12, 2026	201-500	1,116 contacts →
	Exact match “BTP Consultants est un bureau de ̂, et présent à l'échelle nationale depuis plus de.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Morshedy Group	Exact match	Kattameya, EgyptHQ recorded Oct 12, 2026	5,001-10,000	1,095 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 · Oct 12, 2026 · View company records in RevenueBase
16	Affiliated Engineers, INC	Exact match	Madison, WI, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,059 contacts →
	Exact match “Affiliated Engineers, Inc.(AEI) provides engineering leadership and whole-mission solutions for complex building, energy, and utility projects.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	KPF	Exact match	New York, NY, United StatesHQ recorded Oct 12, 2026	501-1,000	1,058 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 · Oct 12, 2026 · View company records in RevenueBase
18	Mapa Group	Exact match	Ankara, TürkiyeHQ recorded Oct 12, 2026	10001+	1,055 contacts →
	Exact match “Mapa Group has emerged as a global leader in the engineering and construction industry, now spanning three continents.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	TSE	Exact match	São Paulo/sp, BrazilHQ recorded Oct 12, 2026	5,001-10,000	1,035 contacts →
	Exact match “Somos a TSE - Total Sustainable Engineering.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	NORR	Exact match	Toronto, ON, CanadaHQ recorded Oct 12, 2026	501-1,000	970 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 · Oct 12, 2026 · View company records in RevenueBase
21	Dewan Architects & Engineers	Exact match	Barcelona, United Arab EmiratesHQ recorded Oct 12, 2026	501-1,000	959 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 · Oct 12, 2026 · View company records in RevenueBase
22	BPA	Exact match	Montréal, QC, CanadaHQ recorded Oct 12, 2026	1,001-5,000	925 contacts →
	Exact match “IMPACTFUL ENGINEERING At BPA, it’s simple: we are building experts.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Grontmij Group	Exact match	Halmstad, SwedenHQ recorded Oct 12, 2026	10001+	907 contacts →
	Exact match “Grontmij is part of Sweco.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Archetype Group	Exact match	Ho Chi Minh City, VietnamHQ recorded Oct 12, 2026	1,001-5,000	863 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 · Oct 12, 2026 · View company records in RevenueBase
25	Syska Hennessy Group	Exact match	New York, United StatesHQ recorded Oct 12, 2026	501-1,000	835 contacts →
	Exact match “Consult Engineer Commission At Syska Hennessy Group, we create exceptional environments.” Recorded in the RevenueBase company graph · Oct 12, 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 “energy efficient 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 31,634 energy efficient building architects worldwide

See the full list, filter by size, metro and specialty, and access 113,106 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy efficient building architects worldwide at a glance

As of Oct 12, 2026

34.4%Verified-email coverage

10.4Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · London

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

21,121

11-50

8,328

51-200

1,539

201-500

297

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 energy efficient building architects are linked below.
What qualifies: Company records worldwide whose business descriptions match “energy efficient 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 113,106 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 October 12, 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.

Energy efficient building architects by location

152 lists · largest first

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

How many energy efficient building architects are there worldwide?

RevenueBase identified 31,634 company matches for energy efficient building architects worldwide as of October 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?

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

Which country has the most energy efficient building architects?

The United States leads with 5,816 companies, followed by Germany (2,229) and India (2,045). Every energy efficient building architects list by country and city is linked on this page.

Which city has the most energy efficient building architects?

London leads with 377 company records, followed by New York (328) and Paris (254).

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 113,106 professional contacts with verified work emails tracked across these 31,634 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 October 12, 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.