Company lists · Data refreshed September 2026

Top 25 Sustainability technology integrators based in the United Kingdom

Name: Sustainability technology integrators based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 465 companies tracked

RevenueBase identified 465 sustainability technology integrators headquartered in the United Kingdom as of September 2026 and tracks 14,589 professional contacts across them, including 7,106 with verified work emails. London is the largest hub.

This list covers sustainability technology integrators 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 22, 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 22, 2026 86% judged on-target in blind review

465Companies

14,589Contacts tracked

7,106Verified emails

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The 25 largest sustainability technology integrators based in the United Kingdom

Ranked by team size

Top 25 of 465 sustainability technology integrators based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainability technology integrators: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	ERM	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	5,001-10,000	9,119 contacts →
	Partial evidence “Sustainability is our business.” Source: RevenueBase Database · checked Sep 22, 2026
2	KBC A Yokogawa Company	Indirect evidence	Walton-on-thames, United KingdomHQ checked Sep 22, 2026	201-500	658 contacts →
	Indirect evidence “We are passionate about driving sustainable change for our planet.” Source: RevenueBase Database · checked Sep 22, 2026
3	Inspired PLC	Strong evidence	Kirkham, United KingdomHQ checked Sep 22, 2026	501-1,000	373 contacts →
	Strong evidence “Inspired PLC is a leading technology-enabled provider of energy and sustainability solutions that allow UK and Irish businesses to transition to net-zero carbon and manage their…” Source: RevenueBase Database · checked Sep 22, 2026
4	Atelier TEN	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	323 contacts →
	Indirect 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 22, 2026
5	Mitie Energy	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	125 contacts →
	Partial evidence “Mitie Energy are an award-winning, UK-based energy, utilities and sustainability solutions business.” Source: RevenueBase Database · checked Sep 22, 2026
6	AMBER	Indirect evidence	Cardiff, United KingdomHQ checked Sep 22, 2026	51-200	124 contacts →
	Indirect evidence “We are an award-winning energy consultancy and certified B Corp™.” Source: RevenueBase Database · checked Sep 22, 2026
7	ZTP	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	115 contacts →
	Indirect evidence “At ZTP, we’re committed to accelerating the transition to a more sustainable future by reducing the negative impact of human activity on our planet - ecologically, financially…” Source: RevenueBase Database · checked Sep 22, 2026
8	Longevity Partners	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	115 contacts →
	Partial evidence “Longevity Partners is a multidisciplinary energy and sustainability consultancy.” Source: RevenueBase Database · checked Sep 22, 2026
9	Ecolibrium	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	109 contacts →
	Partial evidence “Ecolibrium is a sustainability tech company that empowers people to make better decisions based on proven data-driven ML algorithms through continuous monitoring, analysis and…” Source: RevenueBase Database · checked Sep 22, 2026
10	Alfa Energy An Edison Energy Company	Strong evidence	London, United KingdomHQ checked Sep 22, 2026	201-500	88 contacts →
	Strong evidence “Alfa Energy Group (an Edison Energy company) is an international energy, sustainability and technology consultant partner with 200 employees over four international locations.” Source: RevenueBase Database · checked Sep 22, 2026
11	Altruistiq	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	83 contacts →
	Partial evidence “Altruistiq is a leading Sustainability Intelligence platform trusted by companies across the agriculture value chain.” Source: RevenueBase Database · checked Sep 22, 2026
12	clearvue.business	Indirect evidence	Gateshead, United KingdomHQ checked Sep 22, 2026	51-200	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 22, 2026
13	Team Energy Auditing Agency LTD	Partial evidence	Milton Keynes, United KingdomHQ checked Sep 22, 2026	51-200	69 contacts →
	Partial evidence “TEAM is the UK’s leading supplier of carbon and energy management solutions committed to driving the efficiency and sustainability of energy consumption and environmental…” Source: RevenueBase Database · checked Sep 22, 2026
14	Ecoact Part Of Schneider Electric	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	201-500	69 contacts →
	Indirect evidence “EcoAct is now SE Advisory Services.” Source: RevenueBase Database · checked Sep 22, 2026
15	The Miles Consultancy	Indirect evidence	Crewe, United KingdomHQ checked Sep 22, 2026	51-200	67 contacts →
	Indirect evidence “Our mission at The Miles Consultancy (TMC) is to empower businesses with innovative, digital solutions and data-driven insights that reduce costs, lower carbon emissions and…” Source: RevenueBase Database · checked Sep 22, 2026
16	Pacific Green	Indirect evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	63 contacts →
	Indirect evidence “Pacific Green is becoming a world leader at providing sustainable cleantech solutions to help solve climate warming, green energy and resource scarcity challenges.” Source: RevenueBase Database · checked Sep 22, 2026
17	Action Sustainability	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	62 contacts →
	Partial evidence “Recognised for its commitment to employees with a sought-after Best Companies “One To Watch” industry standard, Action Sustainability offers a 3-in-1 solution through…” Source: RevenueBase Database · checked Sep 22, 2026
18	Kinto Join Limited	Indirect evidence	Epsom, United KingdomHQ checked Sep 22, 2026	51-200	61 contacts →
	Indirect evidence “We help organisations understand, measure, and meaningfully reduce their environmental impact through a unique combination of expert consultancy, advanced carbon accounting…” Source: RevenueBase Database · checked Sep 22, 2026
19	Ecolution Group	Indirect evidence	Trottiscliffe, United KingdomHQ checked Sep 22, 2026	51-200	55 contacts →
	Indirect evidence “Renewable Energy Experts: For over 25 years, Ecolution have been at the forefront of renewable energy services, using our award-winning expertise, to help our clients innovate and…” Source: RevenueBase Database · checked Sep 22, 2026
20	Businesswise Solutions	Partial evidence	Nelson, United KingdomHQ checked Sep 22, 2026	11-50	54 contacts →
	Partial evidence “We’re an energy management consultancy specialising in supporting energy-intensive businesses with energy procurement, energy management, and sustainability challenges.” Source: RevenueBase Database · checked Sep 22, 2026
21	Evoenergy	Partial evidence	Nottingham, United KingdomHQ checked Sep 22, 2026	11-50	54 contacts →
	Partial evidence “Driving the market through innovation, EvoEnergy are the UK’s leading energy technology solutions provider, helping blue-chip clients and SME’s turn their sites into ‘sustainable…” Source: RevenueBase Database · checked Sep 22, 2026
22	Bioregional	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	50 contacts →
	Partial evidence “We’re agile sustainability experts who break daunting challenges into achievable, collaborative steps.” Source: RevenueBase Database · checked Sep 22, 2026
23	Carbonxgen Limited	Partial evidence	Sandhurst, United KingdomHQ checked Sep 22, 2026	11-50	49 contacts →
	Partial evidence “Carbonxgen is a leading consultancy that specialises in solving complex energy and sustainability challenges.” Source: RevenueBase Database · checked Sep 22, 2026
24	Fusion For Business	Indirect evidence	Durham, United KingdomHQ checked Sep 22, 2026	51-200	49 contacts →
	Indirect evidence “At Fusion For Business, we believe in the value of genuine human connection - people doing business with people they trust.” Source: RevenueBase Database · checked Sep 22, 2026
25	ETUDE	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	11-50	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 22, 2026

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: sustainability technology integrators. 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 sustainability technology integrators.
Partial evidence: Its own public description names part of sustainability technology integrators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainability technology integrators. 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 465 sustainability technology integrators based in the United Kingdom

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Sustainability technology integrators based in the United Kingdom at a glance

As of Sep 22, 2026

48.7%Verified-email coverage

31.4Average contacts per company

1-10Median size (employees)

28.2%Largest-city concentration · London

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

266

11-50

148

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 465 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 sustainability technology integrators, 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 “sustainability technology integrators”. 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 sustainability technology integrators), 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 sustainability technology integrators, 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, 7,106 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 22, 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.

Sustainability technology integrators by metro

Sustainability technology integrators in London131

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 sustainability technology integrators, 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 sustainability technology integrators are there based in the United Kingdom?

RevenueBase identified 465 sustainability technology integrators 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 sustainability technology integrators?

London leads with 131 headquartered companies, followed by Manchester (18) and Bristol (12).

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 7,106 verified decision-maker contacts tracked across these 465 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 22, 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.