Company lists · Data refreshed September 2026
Top 25 Green building consultants based in the United Kingdom
RevenueBase identified 784 green building consultants headquartered in the United Kingdom as of September 2026 and tracks 18,625 professional contacts across them, including 9,655 with verified work emails. London is the largest hub.
This list covers green building consultants headquartered in the United Kingdom, 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 16, 2026.
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.
The 25 largest green building consultants based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 9,119 contacts → | ||||
Indirect evidence “Sustainability is our business.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,103 contacts → | ||||
Partial evidence “We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 374 contacts → | ||||
Indirect evidence “IES is an innovative company at the forefront of the development and application of powerful software simulation tools and consulting services for architects, engineers and others…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 352 contacts → | ||||
Partial evidence “Hydrock now Stantec is an integrated engineering design, energy and sustainability consultancy.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 323 contacts → | ||||
Strong evidence “As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 317 contacts → | ||||
Indirect evidence “Climate change is without a doubt the greatest challenge we face in these times.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 208 contacts → | ||||
Partial evidence “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.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 192 contacts → | ||||
Partial evidence “The Frankham Group provides a full range of consultany services to the built environment, including design, engineering and compliance.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 133 contacts → | ||||
Indirect evidence “At Genuit Group, we’re driven by a clear purpose: to create a more sustainable built environment and a more resilient future for people and the planet.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 121 contacts → | ||||
Partial evidence “WWe are a leading MEP & Sustainability engineering consultancy, committed to driving responsible and sustainable solutions in the built environment.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 115 contacts → | ||||
Partial evidence “Longevity Partners is a multidisciplinary energy and sustainability consultancy.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 98 contacts → | ||||
Strong evidence “We are an independent Building Services Consultancy providing national coverage.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 96 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 93 contacts → | ||||
Partial evidence “Greengage is an independent sustainability and environmental consultancy known for providing bespoke advice and working in partnership with our clients and multi-disciplinary…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 92 contacts → | ||||
Partial evidence “AES Sustainability Consultants is a leading technical consultancy that delivers value engineered solutions across the homebuilding and construction industries.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 87 contacts → | ||||
Strong evidence “SDS is a forward-looking, dynamic construction consultancy specialising in the design of sustainable, mechanical and electrical engineering systems for buildings.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 84 contacts → | ||||
Strong evidence “We are a multidisciplinary group with backgrounds in engineering, architecture and environmental science, working as consultants for buildings, large developments and masterplans…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 81 contacts → | ||||
Indirect evidence “We enable businesses to succeed in the environmental components of their ESG strategies through comprehensive net zero consulting services and ground-breaking carbon and energy…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 76 contacts → | ||||
Strong evidence “The UK Green Building Council (UKGBC) is a charity and an industry-led network with a mission to radically improve the sustainability of the built environment.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 67 contacts → | ||||
Partial evidence “DSSR is a forward-thinking, award-winning company of Consulting Engineers specialising in all aspects of Building Services and Sustainability design.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 66 contacts → | ||||
Indirect evidence “We bring good energy to the table to help you save yours.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 65 contacts → | ||||
Partial evidence “At 21 Degrees, we believe buildings should be designed for lower energy use, healthier spaces and better comfort.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 61 contacts → | ||||
Strong evidence “Rybka is a leading Building Services Engineering, Low Carbon and Sustainability Consultancy with a wide geographical spread and a focus on providing commercially viable, energy…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 60 contacts → | ||||
Partial evidence “RSP Consulting Engineers LLP are leaders in sustainable and low energy building services design.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 58 contacts → | ||||
Partial evidence “We are a specialist consultancy business delivering mechanical and electrical design and commissioning consultancy.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
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: green building consultants. 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 green building consultants.
- Partial evidence
- Its own public description names part of green building consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name green building consultants. 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 784 green building consultants based in the United Kingdom
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 9,655 reachable decision-makers.
Free signup · no credit card
Green building consultants based in the United Kingdom at a glance
As of Sep 16, 2026Companies by employee count
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 784 companies.
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 green building consultants, 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.
- What qualifies
- Companies headquartered in the United Kingdom whose own description of what they do matches “green building consultants”. 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 green building consultants), 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 green building consultants, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
- 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, 9,655 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 16, 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.
Green building consultants by metro
- Green building consultants in London173
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 green building consultants, 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 green building consultants are there based in the United Kingdom?
RevenueBase identified 784 green building consultants headquartered in the United Kingdom 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?
ERM, headquartered in London, tops this list with the largest team on record.
Which city has the most green building consultants?
London leads with 173 headquartered companies, followed by Leeds (23) and Bristol (20).
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 9,655 verified decision-maker contacts tracked across these 784 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 16, 2026.
Ready to reach these companies? Verified emails and direct dials for all 784 green building consultants based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Green building consultants by geography
- Green building consultants based in Mumbai, India
- Green building consultants based in Pune, India
- Green building consultants based in Atlanta, United States
- Green building consultants based in Chicago, United States
- Green building consultants based in Los Angeles, United States
- Green building consultants based in New York, United States
- Green building consultants based in Portland, United States
- Green building consultants based in San Francisco, United States
- Green building consultants based in Seattle, United States
- Green building consultants based in Argentina
- Green building consultants based in Australia
- Green building consultants based in Austria
Browse the directory
Browse: Companies home · All United Kingdom lists · All Green building consultants lists · New lists
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Green building consultants based in Mumbai, India
- Green building consultants based in Pune, India
- Green building consultants based in Atlanta, United States
- Green building consultants based in Chicago, United States
- Green building consultants based in Los Angeles, United States
- Green building consultants based in New York, United States