Company lists · Data refreshed September 2026

Top 25 Backup power generation companies based in the United Kingdom

Name: Backup power generation companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 151 companies tracked

RevenueBase identified 151 backup power generation companies headquartered in the United Kingdom as of September 2026 and tracks 1,863 professional contacts across them, including 714 with verified work emails. London is the largest hub.

This list covers backup power generation companies 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 19, 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 19, 2026 86% judged on-target in blind review

151Companies

1,863Contacts tracked

714Verified emails

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The 25 largest backup power generation companies based in the United Kingdom

Ranked by team size

Top 25 of 151 backup power generation companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to backup power generation companies: 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	Dale Power Solutions	Partial evidence	Scarborough, United KingdomHQ checked Sep 19, 2026	201-500	214 contacts →
	Partial evidence “Founded in 1935 Dale Power Solutions Ltd have been providing reliable; secure power solutions for mission critical services & systems throughout the world.” Source: RevenueBase Database · checked Sep 19, 2026
2	Power Control LTD	Partial evidence	Eckington, United KingdomHQ checked Sep 19, 2026	51-200	97 contacts →
	Partial evidence “Power Control Ltd is now proudly part of Legrand, a leading European manufacturer of innovative, reliable, and efficient UPS systems.” Source: RevenueBase Database · checked Sep 19, 2026
3	Riello UPS LTD	Partial evidence	Wrexham, United KingdomHQ checked Sep 19, 2026	51-200	95 contacts →
	Partial evidence “Riello UPS Ltd is a leader in the manufacture of uninterruptible power supplies (UPS) from 400 VA to 6.4 MVA and standby generators from 8 kVA to 2.5 MVA.” Source: RevenueBase Database · checked Sep 19, 2026
4	Yorpower	Indirect evidence	Sherburn In Elmet, United KingdomHQ checked Sep 19, 2026	51-200	93 contacts →
	Indirect evidence “YorPower are multi award winning company with their head office based in the UK.” Source: RevenueBase Database · checked Sep 19, 2026
5	Shenton Group	Partial evidence	Andover, United KingdomHQ checked Sep 19, 2026	51-200	85 contacts →
	Partial evidence “The UK's leading Technical Experts in Standby Power, Uninterruptible Power Supplies and Combined Heat & Power Systems.” Source: RevenueBase Database · checked Sep 19, 2026
6	Mems Power Generation	Strong evidence	Gillingham, United KingdomHQ checked Sep 19, 2026	51-200	56 contacts →
	Strong evidence “MEMS Power Generation is the UK leader in generator hire, approaching our 50th year of delivering temporary power solutions that businesses can depend on.” Source: RevenueBase Database · checked Sep 19, 2026
7	UPS Systems PLC	Strong evidence	Swindon, United KingdomHQ checked Sep 19, 2026	11-50	51 contacts →
	Strong evidence “UPS Systems PLC are the UK’s leading independent supplier of standby power and occupy a unique position in the provision of back-up power solutions to businesses of all sizes.” Source: RevenueBase Database · checked Sep 19, 2026
8	PB Design Evjuicengo	Indirect evidence	Clevedon, United KingdomHQ checked Sep 19, 2026	51-200	41 contacts →
	Indirect evidence “PB DESIGN Since its foundation in 1979, PB Design has worked ceaselessly to develop and bring to the market a full range of battery chargers, UPS, batteries and system services…” Source: RevenueBase Database · checked Sep 19, 2026
9	Burtonwood Generator & Switchgear Services LTD	Strong evidence	St Helens, United KingdomHQ checked Sep 19, 2026	11-50	38 contacts →
	Strong evidence “Burtonwood provide a comprehensive range of power generation and switchgear services to the MOD, public and private sectors both in the UK and Europe.” Source: RevenueBase Database · checked Sep 19, 2026
10	BPC Energy LTD	Partial evidence	Romsey, United KingdomHQ checked Sep 19, 2026	11-50	35 contacts →
	Partial evidence “BPC manufacture and distribute a wide range of UPS and related power protection products aimed at the Computer Networking, Telecom, Midrange Computer, Emergency Lighting and Three…” Source: RevenueBase Database · checked Sep 19, 2026
11	Fivefour Engineering Services	Partial evidence	Theale, United KingdomHQ checked Sep 19, 2026	51-200	35 contacts →
	Partial evidence “FiveFour Engineering Service work within the United Kingdom, Central Europe and Scandinavia for clients that have power requirements in either traditional methods of new build or…” Source: RevenueBase Database · checked Sep 19, 2026
12	Secure Power	Strong evidence	Sheffield, United KingdomHQ checked Sep 19, 2026	11-50	31 contacts →
	Strong evidence “Secure Power is a leading provider of backup power solutions, ensuring reliability and efficiency for businesses across many sectors.” Source: RevenueBase Database · checked Sep 19, 2026
13	P&i Group	Partial evidence	Havant, United KingdomHQ checked Sep 19, 2026	11-50	31 contacts →
	Partial evidence “P&I Group (formerly P&I Generators) are trusted Critical Power Specialists, delivering generator and UPS solutions across the UK since As a family-run business, we pride ourselves…” Source: RevenueBase Database · checked Sep 19, 2026
14	Powertecnique	Indirect evidence	Portsmouth, United KingdomHQ checked Sep 19, 2026	51-200	27 contacts →
	Indirect evidence “Powertecnique is a UK based manufacturer of UPS and diesel generators.” Source: RevenueBase Database · checked Sep 19, 2026
15	Pleavin Power	Indirect evidence	Wirral, United KingdomHQ checked Sep 19, 2026	11-50	25 contacts →
	Indirect evidence “Delivering on our promise to be a reliable, effective and powerful solution for your business.” Source: RevenueBase Database · checked Sep 19, 2026
16	Ensmart Power Conversion & Energy Storage	Partial evidence	Braintree, United KingdomHQ checked Sep 19, 2026	11-50	23 contacts →
	Partial evidence “EnSmart Power is one of the UK’s largest providers of energy storage systems and a global specialist in the design and manufacture of uninterruptible power supplies and power…” Source: RevenueBase Database · checked Sep 19, 2026
17	BCL Power	Partial evidence	Milton Keynes, United KingdomHQ checked Sep 19, 2026	11-50	21 contacts →
	Partial evidence “Established in 1994, BCL Power was originally a stationary battery maintenance company.” Source: RevenueBase Database · checked Sep 19, 2026
18	Pharos Generator Services Limited	Strong evidence	Runcorn, United KingdomHQ checked Sep 19, 2026	11-50	20 contacts →
	Strong evidence “Pharos Generator Services with over 60 years’ experience in the power generation industry, specialise in the supply, installation, commissioning, repair and servicing of diesel…” Source: RevenueBase Database · checked Sep 19, 2026
19	Metartec	Partial evidence	Pinner, United KingdomHQ checked Sep 19, 2026	11-50	20 contacts →
	Partial evidence “Metartec are Critical Power Specialists.” Source: RevenueBase Database · checked Sep 19, 2026
20	Prism Power Group	Partial evidence	Watford, United KingdomHQ checked Sep 19, 2026	11-50	19 contacts →
	Partial evidence “Prism Power Group is a global Switchgear and Critical Power Systems provider based in London, UK.” Source: RevenueBase Database · checked Sep 19, 2026
21	Mercury Power LTD	Partial evidence	Surrey, United KingdomHQ checked Sep 19, 2026	11-50	18 contacts →
	Partial evidence “Mercury Power Limited have an extensive team of experienced industry experts who specialise in all critical power projects.” Source: RevenueBase Database · checked Sep 19, 2026
22	Yellow Power LTD	Strong evidence	Stoke On Trent, United KingdomHQ checked Sep 19, 2026	11-50	17 contacts →
	Strong evidence “Yellow Power Ltd are designers, suppliers and installers of new and used diesel and gas powered generation systems, including provision of all ancillary equipment, commissioning…” Source: RevenueBase Database · checked Sep 19, 2026
23	Linnet Technology LTD	Indirect evidence	Manor Loan, United KingdomHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “Founded originally in 1989 in Stirling, Scotland, Linnet Technology’s success has enabled national operational expansion.” Source: RevenueBase Database · checked Sep 19, 2026
24	Woodlands Power	Partial evidence	Evesham, United KingdomHQ checked Sep 19, 2026	11-50	15 contacts →
	Partial evidence “Established in 1950, Woodlands Power was one of the first providers of critical, standby & temporary power in the UK.” Source: RevenueBase Database · checked Sep 19, 2026
25	Specialist Power Systems Limited	Partial evidence	Kempston Hardwick, United KingdomHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “At Specialist Power Systems it is our mission to be the leading independent supplier of secure power equipment and services in the UK.” Source: RevenueBase Database · checked Sep 19, 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: backup power generation companies. 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 backup power generation companies.
Partial evidence: Its own public description names part of backup power generation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name backup power generation companies. 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 151 backup power generation companies based in the United Kingdom

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Backup power generation companies based in the United Kingdom at a glance

As of Sep 19, 2026

38.3%Verified-email coverage

12.3Average contacts per company

11-50Median size (employees)

4.0%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 151 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 backup power generation companies, 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 “backup power generation companies”. 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 backup power generation companies), 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 backup power generation companies, 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, 714 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 19, 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 backup power generation companies, 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 backup power generation companies are there based in the United Kingdom?

RevenueBase identified 151 backup power generation companies 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?

Dale Power Solutions, headquartered in Scarborough, tops this list with the largest team on record.

Which city has the most backup power generation companies?

London leads with 6 headquartered companies, followed by Manchester (4) and Sheffield (4).

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 714 verified decision-maker contacts tracked across these 151 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 19, 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.