Company lists · Data refreshed September 2026
Top 25 Green building certification consultants based in the United Kingdom
RevenueBase identified 284 green building certification consultants headquartered in the United Kingdom as of September 2026 and tracks 3,033 professional contacts across them, including 1,709 with verified work emails. London is the largest hub.
This list covers green building certification 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 certification consultants based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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. | |||||
| 2 | 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. | |||||
| 3 | 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. | |||||
| 4 | 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. | |||||
| 5 | 71 contacts → | ||||
Partial evidence “EnviroCentre is a solutions orientated consultancy that has a proven track record in providing innovative, effective and valuable advice.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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. | |||||
| 7 | 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. | |||||
| 8 | 53 contacts → | ||||
Partial evidence “At Method Consulting, we are specialists in engineering and sustainability solutions, focusing on building services and sustainability for the built environment.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 48 contacts → | ||||
Strong evidence “CAD 21 are professional design consultants in the field of Building Services Engnerring encompassing the following specialist areas: Air Conditioning Domestic Water Services Power…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 47 contacts → | ||||
Indirect evidence “Watkins Payne was originally formed as a traditional partnership in 1970.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 47 contacts → | ||||
Partial evidence “We are a team of sustainability engineers passionate about creating buildings with a positive impact on the environment and the community.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 45 contacts → | ||||
Strong evidence “Silcock Dawson & Partners are a leading firm of Building Services and Energy Consultants.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 45 contacts → | ||||
Partial evidence “We are a team of like-minded individuals delivering a commercially designed building services solution; we pride ourselves on the quality of our product.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 42 contacts → | ||||
Indirect evidence “At Eight Versa, we deliver a new direction for a balanced future.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 41 contacts → | ||||
Strong evidence “If you need a professional consultancy to assist you with your building engineering services needs, then SVM Associates can help.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 34 contacts → | ||||
Partial evidence “Based in Oxford, UK and in Istanbul, Turkey, Metsims is the leading sustainability consultancy specialised in life cycle assessment (LCA), corporate and product carbon footprint…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 33 contacts → | ||||
Indirect evidence “Welcome to ESC.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 31 contacts → | ||||
Indirect evidence “We believe that if you understand your environmental targets, you will have a better understanding of their real-world impacts.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 29 contacts → | ||||
Indirect evidence “We believe that a better future for people and the planet doesn't have to be at the expense of success in the present.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 29 contacts → | ||||
Indirect evidence “At the heart of SRE lies a passionate commitment: to ensure a sustainable built environment.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 28 contacts → | ||||
Partial evidence “Twin and Earth is an independent engineering and sustainability consultancy.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 26 contacts → | ||||
Indirect evidence “The practice was established by Steve Hunt in 1988 and has focused on quality growth to match demand whilst maintaining stability, a desire to succeed and a commitment to…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 26 contacts → | ||||
Indirect evidence “Our founder, Simon Flatt, started the practice in 2003 to provide sustainable engineering solutions of the highest quality and standard.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 25 contacts → | ||||
Strong evidence “Building Service and Low Carbon consultancy advice within the Built Environment.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 25 contacts → | ||||
Partial evidence “If you're looking for sustainability consultancy, look no further!” 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 certification 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 certification consultants.
- Partial evidence
- Its own public description names part of green building certification 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 certification 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 284 green building certification consultants based in the United Kingdom
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Green building certification 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 284 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 certification 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 certification 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 certification 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 certification 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, 1,709 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 certification consultants by metro
- Green building certification consultants in London65
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 certification 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 certification consultants are there based in the United Kingdom?
RevenueBase identified 284 green building certification 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?
Atelier TEN, headquartered in London, tops this list with the largest team on record.
Which city has the most green building certification consultants?
London leads with 65 headquartered companies, followed by Leeds (11) and Bristol (8).
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 1,709 verified decision-maker contacts tracked across these 284 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.
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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.
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