Company lists · Data refreshed November 2026

Top 25 Emergency power system installers based in the United Kingdom

RevenueBase identified 717 company matches for emergency power system installers associated with the United Kingdom as of November 2026 and tracks 4,563 professional contacts across them, including 1,545 with verified work emails. London is the largest hub.

This list covers company matches for emergency power system installers associated with the 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 November 6, 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 Nov 6, 2026 How this list was built
717Companies
4,563Contacts tracked
1,545Verified emails
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The 25 largest emergency power system installers based in the United Kingdom

Ranked by team size
Top 25 of 717 company matches for emergency power system installers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchScarborough, United KingdomHQ recorded Nov 6, 2026201-500231 contacts →

Exact match

“Founded in 1935 Dale Power Solutions Ltd have been providing reliable; secure power solutions for mission critical services & systems throughout the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchHeanor, United KingdomHQ recorded Nov 6, 202651-200124 contacts →

Exact match

“WB Power Services Ltd (now proudly part of Rehlko) provide critical power services to some of the UK’s most important businesses and organisations, ensuring essential services are…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchOxfordshire, United KingdomHQ recorded Nov 6, 202651-200122 contacts →

Exact match

“Our mission is to excel in the design, installation and maintenance of the electro-technical systems that connect to create fit for purpose building environments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchNewry, United KingdomHQ recorded Nov 6, 202651-200115 contacts →

Exact match

“ASEE Group is a leader in mechanical and electrical engineering, specialising in generator integration and full-service installations for 45+ years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAndover, United KingdomHQ recorded Nov 6, 202651-20089 contacts →

Exact match

“The UK's leading Technical Experts in Standby Power, Uninterruptible Power Supplies and Combined Heat & Power Systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMilngavie, United KingdomHQ recorded Nov 6, 202651-20082 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchGillingham, United KingdomHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“MEMS Power Generation is the UK leader in generator hire, approaching our 50th year of delivering temporary power solutions that businesses can depend on.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchMagherafelt, United KingdomHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“Premier Electrics have been delivering exciting projects throughout Ireland, UK and Europe since 1993.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBrentwood, United KingdomHQ recorded Nov 6, 2026201-50061 contacts →

Exact match

“Wiggett Electrical has gone from strength to strength.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSwindon, United KingdomHQ recorded Nov 6, 202611-5056 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBanstead, United KingdomHQ recorded Nov 6, 202651-20052 contacts →

Exact match

“Our aim is to be the first choice for electrical and engineering installations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchRochester, United KingdomHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“Energy Solutions (UK) Ltd designs, manufactures and supplies integrated power, monitoring and control systems for marine, specialist vehicle, off‑grid and industrial applications…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchPreston, United KingdomHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“Central Power Services is one of the UK’s most trusted independent power specialists, delivering 24/7 generator hire, sales, and maintenance solutions nationwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSt Helens, United KingdomHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“Burtonwood provide a comprehensive range of power generation and switchgear services to the MOD, public and private sectors both in the UK and Europe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchTheale, United KingdomHQ recorded Nov 6, 202651-20035 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchHavant, United KingdomHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchSheffield, United KingdomHQ recorded Nov 6, 202611-5030 contacts →

Exact match

“BLE Lighting & Power Limited is a specialist in the specification, supply and installation of emergency lighting, emergency power solutions and energy efficient lighting…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchUnited KingdomHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“Delivering on our promise to be a reliable, effective and powerful solution for your business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchCrumlin, United KingdomHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“At Project Power we pride ourselves on our quality of equipment, high level of service and teamwork ethos – all of which is at the heart of everything we do – we call this our…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchWatford, United KingdomHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“Prism Power Group is a global Switchgear and Critical Power Systems provider based in London, UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchGlasgow, United KingdomHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“MD Electrical Contractors specialises in providing top-tier electrical services to a diverse range of clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchPortsmouth, United KingdomHQ recorded Nov 6, 202651-20024 contacts →

Exact match

“Powertecnique is a UK based manufacturer of UPS and diesel generators.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchLincoln, United KingdomHQ recorded Nov 6, 202651-20024 contacts →

Exact match

“As a highly reputable Commercial Electrical and Mechanical company we provide high quality design and technical support to businesses across the East Midlands and offer fast…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLoughton, United KingdomHQ recorded Nov 6, 202651-20023 contacts →

Exact match

“The Red Group has been providing electrical and mechanical design, installation and maintenance services to clients across the industrial, commercial, retail and entertainment…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchRotherham, United KingdomHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“At Applied Power Engineering, we specialise in generator commissioning, optioneering, and generator installation, ensuring reliable power solutions tailored to your needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 717 emergency power system installers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,545 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Emergency power system installers based in the United Kingdom at a glance

As of Nov 6, 2026
33.9%Verified-email coverage
6.4Average contacts per company
1-10Median size (employees)
5.2%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
402
11-50
231
51-200
34
201-500
5
501-1,000
2

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 717 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 the United Kingdom whose business descriptions match “emergency power system installers” 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 1,545 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 November 6, 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.

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 “emergency power system installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many emergency power system installers are there based in the United Kingdom?

RevenueBase identified 717 company matches for emergency power system installers associated with the United Kingdom as of November 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?

Dale Power Solutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most emergency power system installers?

London leads with 37 company records, followed by Manchester (14) and Leeds (9).

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 1,545 professional contacts with verified work emails tracked across these 717 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 November 6, 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.