Company lists · Data refreshed September 2026

Top 25 Renewable energy equipment upgrade companies based in London, United Kingdom

Name: Renewable energy equipment upgrade companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 230 companies tracked

RevenueBase identified 230 company matches for renewable energy equipment upgrade companies associated with London, United Kingdom as of September 2026 and tracks 4,727 professional contacts across them, including 2,390 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for renewable energy equipment upgrade companies associated with London, 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 17, 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 17, 2026 How this list was built

230Companies

4,727Contacts tracked

2,390Verified emails

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The 25 largest renewable energy equipment upgrade companies based in London, United Kingdom

Ranked by team size

Top 25 of 230 company matches for renewable energy equipment upgrade companies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Dalkia UK	Exact match	London, United KingdomHQ recorded Sep 17, 2026	5,001-10,000	1,064 contacts →
	Exact match “Together, we’re delivering technical solutions for a better society and an Electric Britain Dalkia is one of the UK’s leading technical and energy services providers at the…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Sonnedix	Exact match	London, United KingdomHQ recorded Sep 17, 2026	501-1,000	563 contacts →
	Exact match “Sonnedix is a global renewable energy company delivering 100% clean electricity directly to customers through a diversified portfolio of solar, wind, and storage assets.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Cubico Sustainable Investments	Exact match	London, United KingdomHQ recorded Sep 17, 2026	501-1,000	406 contacts →
	Exact match “Cubico Sustainable Investments is one of the world’s largest privately-owned renewable energy companies, leveraging our strong local presence with a unique combination of in-house…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	SO Energy	Exact match	London, United KingdomHQ recorded Sep 17, 2026	201-500	378 contacts →
	Exact match “We do energy, you do you.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Intec Energy Solutions	Exact match	London, United KingdomHQ recorded Sep 17, 2026	501-1,000	242 contacts →
	Exact match “INTEC Energy Solutions delivers best-in-class services in Engineering, Procurement, Construction (EPC), Battery Energy Storage Systems (BESS), Manufacturing, Project Development…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	OWC	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	185 contacts →
	Exact match “The Renewable Energy Consultants.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Wood Thilsted	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	175 contacts →
	Exact match “Wood Thilsted is a world-leading renewable energy engineering consultancy experienced and specialised in offshore wind.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	EDF Renewables UK & Ireland	Exact match	London, United KingdomHQ recorded Sep 17, 2026	501-1,000	117 contacts →
	Exact match “EDF Renewables is part of one of the world’s leading renewable energy companies in the UK.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Eenergy	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	98 contacts →
	Exact match “eEnergy (AIM: EAAS) is a UK-based Energy-as-a-Service (EaaS) provider, funding and delivering energy-saving and energy-generating solutions across multi-site public sector and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Purdy Part Of Sureserve	Exact match	London, United KingdomHQ recorded Sep 17, 2026	201-500	85 contacts →
	Exact match “Who are we?” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	AMD Group	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	82 contacts →
	Exact match “AMD Environmental are a collaborative Mechanical and Electrical Design and Build Engineering specialist with a sustainable approach in delivering challenging and bespoke projects…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Innova	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	77 contacts →
	Exact match “Innova is a forward-thinking renewable energy business, employing people across two offices in London and Cheltenham.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Wattstor	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	70 contacts →
	Exact match “Think Outside The Grid.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Golden Globe Merchants LTD	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	38 contacts →
	Exact match “At Golden Globe Merchants, we deliver high-performance, energy-efficient solutions designed to future-proof UK homes.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Syzygy	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	35 contacts →
	Exact match “Founded in 2010, Syzygy is the leading specialist low carbon technology consultancy for the real estate sector.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Octopus Energy For Business	Exact match	London, United KingdomHQ recorded Sep 17, 2026	51-200	27 contacts →
	Exact match “We're on a mission to build a truly sustainable energy system.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Nexwell Power	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	27 contacts →
	Exact match “Part of the Nexwell Group” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Gemec Limited	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	26 contacts →
	Exact match “GEMEC’s main activity and expertise is the Engineering, Procurement and Construction of Renewable energy projects.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Ortus Energy	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	25 contacts →
	Exact match “Ortus Energy is powering up industry across the UK & Ireland by delivering on-site renewable energy on a commercial scale.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	ION Ventures	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	24 contacts →
	Exact match “We are an international team of energy transition specialists with a shared mission to accelerate the transition away from oil, gas and other fossil fuels, embracing clean energy…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Greenlight	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	23 contacts →
	Exact match “GreenLight is a UK based engineering group established in 2008 that specializes in commercial fit-out, facility management, and renewable energy services with a core focus on…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Solar Americas Capital Limited	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	21 contacts →
	Exact match “Have you considered being an investor and consumer of your own energy?” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Excel Energy	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	19 contacts →
	Exact match “At Excel Energy, we are passionate about driving the adoption of commercial solar power in the business world.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Envirolec Smart Energy Solutions	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “With over 70 years combined industry experience, Envirolec Smart Energy Solutions has gained vital expertise and experience in a number of Renewable Technologies.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Sustain Certified B Corp	Exact match	London, United KingdomHQ recorded Sep 17, 2026	11-50	16 contacts →
	Exact match “Our mission is to help make our customers’ homes smarter, more efficient and cost less to run while helping the world get a cleaner energy system.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “renewable energy equipment upgrade companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 230 renewable energy equipment upgrade companies based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 2,390 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Renewable energy equipment upgrade companies based in London, United Kingdom at a glance

As of Sep 17, 2026

50.6%Verified-email coverage

20.6Average contacts per company

1-10Median size (employees)

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

117

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 230 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 London, United Kingdom whose business descriptions match “renewable energy equipment upgrade 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 2,390 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 17, 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.

Renewable energy equipment upgrade companies by metro in the United Kingdom

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 “renewable energy equipment upgrade companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewable energy equipment upgrade companies are there based in London, United Kingdom?

RevenueBase identified 230 company matches for renewable energy equipment upgrade companies associated with London, 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?

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

Which city in the United Kingdom has the most renewable energy equipment upgrade companies?

London leads the United Kingdom with 230 company records, followed by Glasgow (45) and Manchester (41).

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 2,390 professional contacts with verified work emails tracked across these 230 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 17, 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.