Company lists · Data refreshed September 2026

Top 25 Sustainable architecture companies based in the United Kingdom

RevenueBase identified 1,102 company matches for sustainable architecture companies associated with the United Kingdom as of September 2026 and tracks 12,399 professional contacts across them, including 6,740 with verified work emails. London is the largest hub.

This list covers company matches for sustainable architecture companies associated with the United Kingdom, 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 16, 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 16, 2026 How this list was built
1,102Companies
12,399Contacts tracked
6,740Verified emails
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The 25 largest sustainable architecture companies based in the United Kingdom

Ranked by team size
Top 25 of 1,102 company matches for sustainable architecture companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 16, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 16, 20261,001-5,0002,869 contacts →

Exact match

“Foster + Partners is a global studio for architecture, urbanism and design, all rooted in sustainability and founded by Norman Foster in 1967.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 16, 2026201-500391 contacts →

Exact match

“Sheppard Robson is an ever-evolving collective of architects, interior designers and masterplanners.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 16, 202651-200323 contacts →

Exact match

“As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 16, 2026201-500231 contacts →

Exact match

“We are interdisciplinary consultants, engineers and advisors, applying progressive design thinking to shape the environments we live in.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 16, 2026201-500208 contacts →

Exact match

“Max Fordham LLP is a partnership of engineers, designers and consultants, working with the built environment, to deliver a sustainable future and a thriving planet.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
6Exact matchSidcup, United KingdomHQ recorded Sep 16, 202651-200192 contacts →

Exact match

“The Frankham Group provides a full range of consultany services to the built environment, including design, engineering and compliance.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
7Exact matchBrixton, United KingdomHQ recorded Sep 16, 202651-200124 contacts →

Exact match

“We are an international architecture and interior design studio with a reputation for using storytelling to produce beautifully crafted design.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
8Exact matchHenham, United KingdomHQ recorded Sep 16, 202651-200123 contacts →

Exact match

“At Planteria, we specialise in transforming ordinary workspaces into extraordinary environments through innovative, sustainable design.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
9Exact matchBirmingham, United KingdomHQ recorded Sep 16, 202651-200123 contacts →

Exact match

“We’re an ambitious group of architects, designers and makers working throughout the UK and internationally.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
10Exact matchEdinburgh, United KingdomHQ recorded Sep 16, 202651-200104 contacts →

Exact match

“Kettle Collective is a multi-award-winning international practice, founded in 2012 by Tony Kettle and Colin Bone.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
11Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Sep 16, 202651-200102 contacts →

Exact match

“We believe the key to long-lasting architecture is the ability not only to adapt to change but to actively reimagine the human experience.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 16, 202651-20092 contacts →

Exact match

“Jestico + Whiles is an award-winning international architecture and interior design practice based in Clerkenwell, London.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
13Exact matchBirmingham, United KingdomHQ recorded Sep 16, 202651-20091 contacts →

Exact match

“Associated Architects was founded in Birmingham in 1968.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
14Exact matchLeeds, United KingdomHQ recorded Sep 16, 202651-20085 contacts →

Exact match

“Recently recognised as Architectural Practice of the Year and ranked on the AJ100, we have studios in Leeds, London, and Manchester, and are a multi-award-winning practice that…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 16, 202651-20073 contacts →

Exact match

“JRA is a forward-thinking and dynamic architectural practice, built on firm foundations with a commitment to people, place, and planet.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 16, 202651-20072 contacts →

Exact match

“Bennetts Associates is one of the UK’s leading architectural practices, recognised for creating elegant, human-centred buildings through an ethos of doing ‘More With Less’.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 16, 202651-20070 contacts →

Exact match

“Architype Ltd is an architectural practice working from offices in Hereford, London and Edinburgh.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18Exact matchGlasgow, United KingdomHQ recorded Sep 16, 202651-20067 contacts →

Exact match

“Holmes Miller are a practice rich in history filled with a passionate and enthusiastic team delivering excellence in architecture and interior design.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 16, 202651-20064 contacts →

Exact match

“We are an award-winning architectural practice specialising in the design of low energy, low environmental impact buildings, cost effectively and to the highest quality standards.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 16, 202651-20064 contacts →

Exact match

“LSI Architects is an award winning, AJ100 Architectural Practice with around 70 people.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21Exact matchBirmingham, United KingdomHQ recorded Sep 16, 202651-20062 contacts →

Exact match

“BM3 is a highly skilled group of designers which prides itself on being easy and fun to work with, providing a professional service from start to finish.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
22Exact matchEdinburgh, United KingdomHQ recorded Sep 16, 202651-20060 contacts →

Exact match

“RSP Consulting Engineers LLP are leaders in sustainable and low energy building services design.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 16, 202651-20056 contacts →

Exact match

“Stiff+Trevillion makes elegant, human-centred architecture that stands the test of time.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24Exact matchCardiff, United KingdomHQ recorded Sep 16, 202651-20056 contacts →

Exact match

“Our core business activity is Architectural Design Services with a full range of experienced and skilled professionals in our Cardiff office.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 16, 202651-20050 contacts →

Exact match

“We are architects and urbanists, design custodians of places where people can live, work and enjoy every shade of life in between.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase

Showing 25 of 1,102 sustainable architecture companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 6,740 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sustainable architecture companies based in the United Kingdom at a glance

As of Sep 16, 2026
54.4%Verified-email coverage
11.3Average contacts per company
1-10Median size (employees)
29.3%Largest-city concentration · London
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
787
11-50
249
51-200
45
201-500
10
501-1,000
2
1,001-5,000
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 1,102 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 the United Kingdom whose business descriptions match “sustainable architecture companies” 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 6,740 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 16, 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.

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 architecture companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sustainable architecture companies are there based in the United Kingdom?

RevenueBase identified 1,102 company matches for sustainable architecture companies associated with the United Kingdom 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?

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

Which city has the most sustainable architecture companies?

London leads with 323 company records, followed by Bristol (25) and Glasgow (22).

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 6,740 professional contacts with verified work emails tracked across these 1,102 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 16, 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.