Company lists · Data refreshed September 2026
Top 25 Backup power generators based in the United Kingdom
RevenueBase identified 161 backup power generators headquartered in the United Kingdom as of September 2026 and tracks 3,608 professional contacts across them, including 1,014 with verified work emails. Leeds is the largest hub.
This list covers backup power generators 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.
The 25 largest backup power generators based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 468 contacts → | ||||
Partial evidence “Founded in 1966, FG Wilson is a leading global supplier of diesel generator sets with a strong heritage of quality, support and value.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 169 contacts → | ||||
Strong evidence “Generator Power are specialists in the provision of power via the hire and sale of diesel and LPG generators, bunded fuel tanks and other ancillary equipment.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 161 contacts → | ||||
Indirect evidence “We bring the energy!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 141 contacts → | ||||
Partial evidence “Finning Power & Energy is a division of Finning, the sole dealer for Caterpillar in the UK & Ireland.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 125 contacts → | ||||
Partial evidence “ADE Power have over 25 years of experience at the forefront of the design, manufacture, and fit-out of precision engineered acoustic and modular enclosures for the packaging of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 95 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 93 contacts → | ||||
Indirect evidence “YorPower are multi award winning company with their head office based in the UK.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 83 contacts → | ||||
Partial evidence “Prior Power Solutions is a leading supplier of specialised diesel-driven, alternative, and sustainable power systems, equipment and services to the oil and gas, marine…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 79 contacts → | ||||
Strong evidence “From our 6.3-acre HQ in Glasgow, and further sites in Bristol and Rugby, we supply, install and maintain diesel and gas generators, combined heat and power systems (CHP), solar…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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, 2026Thanks. The Data Team will review it. | |||||
| 14 | 41 contacts → | ||||
Partial evidence “Based at a modern facility in Northern Ireland, UK, AJ Power produces diesel generating sets from 10kVA to 2800kVA using automotive manufacturing techniques, for use in hospitals…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 38 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 16 | 31 contacts → | ||||
Strong 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, 2026Thanks. The Data Team will review it. | |||||
| 17 | 30 contacts → | ||||
Strong evidence “Central Power Services is one of the UK’s most trusted independent power specialists, delivering 24/7 generator hire, sales, and maintenance solutions nationwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 27 contacts → | ||||
Partial evidence “Powertecnique is a UK based manufacturer of UPS and diesel generators.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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, 2026Thanks. The Data Team will review it. | |||||
| 21 | 21 contacts → | ||||
Strong evidence “The Welland Power Range of diesel generators is ideal for your business.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 21 contacts → | ||||
Partial evidence “Established in 1994, BCL Power was originally a stationary battery maintenance company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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, 2026Thanks. The Data Team will review it. | |||||
| 24 | 17 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 25 | 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, 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: backup power generators. 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 generators.
- Partial evidence
- Its own public description names part of backup power generators, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name backup power generators. 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 161 backup power generators based in the United Kingdom
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,014 reachable decision-makers.
Free signup · no credit card
Backup power generators based in the United Kingdom at a glance
As of Sep 19, 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 161 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 generators, 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 generators”. 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 generators), 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 generators, 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, 1,014 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 generators, 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 generators are there based in the United Kingdom?
RevenueBase identified 161 backup power generators 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?
FG Wilson, headquartered in Larne, tops this list with the largest team on record.
Which city has the most backup power generators?
Leeds leads with 4 headquartered companies, followed by London (4) and Manchester (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 1,014 verified decision-maker contacts tracked across these 161 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.
Ready to reach these companies? Verified emails and direct dials for all 161 backup power generators based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Backup power generators by geography
- Backup power generators based in Australia
- Backup power generators based in Brazil
- Backup power generators based in Canada
- Backup power generators based in Germany
- Backup power generators based in India
- Backup power generators based in Italy
- Backup power generators based in the Netherlands
- Backup power generators based in South Africa
- Backup power generators based in Türkiye
- Backup power generators based in the United Arab Emirates
- Backup power generators based in the United States
Browse the directory
Browse: Companies home · All United Kingdom lists · All Backup power generators lists · New lists
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.