Company lists · Data refreshed September 2026

Top 19 Carbon neutral contractors based in Leeds, United Kingdom

RevenueBase identified 36 carbon neutral contractors headquartered in Leeds, United Kingdom as of September 2026 and tracks 432 professional contacts across them, including 218 with verified work emails. London is the largest hub.

This list covers carbon neutral contractors headquartered in Leeds, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review
36Companies
432Contacts tracked
218Verified emails
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The 19 largest carbon neutral contractors based in Leeds, United Kingdom

Ranked by team size
Top 19 of 36 carbon neutral contractors based in Leeds, United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to carbon neutral contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 20261,001-5,000133 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, 2026
2Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 202651-20062 contacts →

Indirect evidence

“Adept is a dynamic, rapidly growing and strongly established civil and structural engineering consultancy with an excellent reputation for the delivery of complex and specialist…”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 202611-5035 contacts →

Indirect evidence

“ITP provides an efficient, accurate and professional experience to industry leaders across the globe.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 202611-5026 contacts →

Indirect evidence

“Silcock Leedham are Mechanical & Electrical Building Services Consulting Engineers, with broad based expertise in all construction sectors including offices, laboratories…”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 202611-5017 contacts →

Indirect evidence

“GenNorth provides sound business advice and effective consulting services to enable clients to make a positive and sustainable contribution to the built environment and social…”

Source: RevenueBase Database · checked Sep 16, 2026
6Partial evidenceLeeds, United KingdomHQ checked Sep 16, 202611-5017 contacts →

Partial evidence

“Tunley Environmental is a science-based environmental sustainability consultancy specialising in carbon, nature, water, regulatory compliance and sustainability training.”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 20261-1012 contacts →

Indirect evidence

“Welcome to Leeds Environmental Design Associates (LEDA), a worker-owned cooperative of designers dedicated to creating great sustainable buildings that respect the environment and…”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 202611-5010 contacts →

Indirect evidence

“KNG Building Services brings a wealth of experience from the KNG Group, including over 30 years of experience in mechanical and electrical engineering, and a background in…”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 202611-509 contacts →

Indirect evidence

“Tate Consulting is a multi-discipline building services engineering practice that provides a strategic and innovative approach to delivering engineering and management consultancy…”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 202611-507 contacts →

Indirect evidence

“Design and Project Management Consultants”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 20261-106 contacts →

Indirect evidence

“Orbis is a director lead and client focused sustainability, building & utility services consultancy supporting clients and construction professionals to deliver effective…”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 20261-106 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 202611-504 contacts →

Indirect evidence

“We are one of the UK’s most trusted experts in building compliance, offering a full range of energy assessment, consultancy, and testing services tailored to the construction…”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 202611-504 contacts →

Indirect evidence

“Bourke Building & Refurbishment are a team of craftsmen based in West Yorkshire.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 202611-503 contacts →

Indirect evidence

“We’re a specialist team of building physics engineers.”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 202611-503 contacts →

Indirect evidence

“Greenfield Building Services is celebrating 3 years in January of 2023.”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 20261-103 contacts →

Indirect evidence

“Maple Project Solutions is an innovative energy consultancy, providing solutions to help businesses use energy more efficiently.”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 202611-501 contacts →

Indirect evidence

“Stratus Environmental Limited is a multidisciplinary planning, design and engineering consultancy specialising in the provision of development services to the UK's leading waste…”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceLeeds, United KingdomHQ checked Sep 16, 20261-101 contacts →

Indirect evidence

“Zia Developments is a Leeds based construction and property development firm founded in 2013.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 19 of 36 carbon neutral contractors based in Leeds, United Kingdom

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Carbon neutral contractors based in Leeds, United Kingdom at a glance

As of Sep 16, 2026
50.5%Verified-email coverage
12.0Average contacts per company
11-50Median size (employees)
1469.4%Largest-city concentration · London
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
14
11-50
19
51-200
2
1,001-5,000
1

Email recency for this list is measured across the whole United Kingdom list rather than for Leeds, so it is reported there. Company counts and contact totals on this page are exact for Leeds, over 36 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 carbon neutral contractors, 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 Leeds, United Kingdom whose own description of what they do matches “carbon neutral contractors”. 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 carbon neutral contractors), 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 carbon neutral contractors, and records with no verified work email. Companies headquartered outside Leeds 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, 218 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.

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 carbon neutral contractors, 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 carbon neutral contractors are there based in Leeds, United Kingdom?

RevenueBase identified 36 carbon neutral contractors headquartered in Leeds, 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?

Genuit Group, headquartered in Leeds, tops this list with the largest team on record.

Which city has the most carbon neutral contractors?

London leads with 529 headquartered companies, followed by Glasgow (54) and Manchester (54).

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 218 verified decision-maker contacts tracked across these 36 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.