Company lists · Data refreshed November 2026
Top 25 Mission critical facilities operators based in the United Kingdom
RevenueBase identified 97 company matches for mission critical facilities operators associated with the United Kingdom as of November 2026 and tracks 1,995 professional contacts across them, including 336 with verified work emails. London is the largest hub.
This list covers company matches for mission critical facilities operators 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.
The 25 largest mission critical facilities operators based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 124 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 | |||||
| 2 | 64 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 | |||||
| 3 | 49 contacts → | ||||
Exact match “Alba Facilities Services have been successfully supporting and delivering solutions to our commercial building and property clients since 2003.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 47 contacts → | ||||
Exact match “At ICH, we believe that every customer deserves to be more than just another number.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 39 contacts → | ||||
Exact match “TDM Group is a specialist provider of data and communication infrastructure solutions for critical facilities across the UK and Middle East.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 34 contacts → | ||||
Exact match “on365 is a specialist provider of critical physical IT infrastructure and utility services for public sector, SME and corporate clients across the UK and Europe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 32 contacts → | ||||
Exact match “JH Mechanical Services is a leading provider of mechanical, electrical and water management services across the North of England.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 27 contacts → | ||||
Exact match “Workspace Technology Ltd provide expertly engineered Mission Critical Infrastructure, Rack Colocation Hosting and Maintenance & Support Services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 24 contacts → | ||||
Exact match “Haz Mission Critical provides professional Mission Critical support to clients around the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 22 contacts → | ||||
Exact match “Protecting the Heartbeat of British Business'' We create, maintain and manage controlled live environments vital for the operation of thousands of servers at the heart of the UK…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 18 contacts → | ||||
Exact match “The Kirby Group are an integrated facility solutions provider offering services including; security, fire, IT+ communications, electrical, lighting, HVAC Heating, Ventilation &…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 17 contacts → | ||||
Exact match “Covering all aspects of HVAC, facilities management and electrical installation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 16 contacts → | ||||
Exact match “EDP Europe specialises in the supply of critical infrastructure solutions for the data centre environment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 13 contacts → | ||||
Exact match “SmartDCS is a UK-based critical infrastructure specialist delivering end-to-end solutions across data centres, connectivity, electrical systems and renewable energy environments.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 12 contacts → | ||||
Exact match “Established in 1981, McAlpine Grant Ilco Ltd (MGi) specialise in providing installation, maintenance and servicing of cooling and heating units to properties throughout the UK.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 12 contacts → | ||||
Exact match “RMD is an independent specialist in integrated power and cooling solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 11 contacts → | ||||
Exact match “Since 1979 the CC Cousins family-run business has specialised in providing a comprehensive range of facilities management solutions for customers ranging from small businesses to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 10 contacts → | ||||
Exact match “BAXCREST LIMITED is a facilities services company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 10 contacts → | ||||
Exact match “Cilantro Facilities Management's ethos is to proactively manage mechanical and electrical services across every development we work with - residential, commercial, mixed-use, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 9 contacts → | ||||
Exact match “At D2 Facilities, we provide a wide range of building maintenance and facilities management services to commercial, industrial, and public sector clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 9 contacts → | ||||
Exact match “At Landmark Facilities Management, we create stability in the buildings people rely on every day.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 9 contacts → | ||||
Exact match “Welcome to Generator Installations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 8 contacts → | ||||
Exact match “Advanced Power Technology is a leading independent supplier of Energy Efficient Critical Power and Cooling Systems to protect server rooms, data centres and other mission critical…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 7 contacts → | ||||
Exact match “CDC Facilities Management Ltd (CDCfm) was formed as a direct result of 15 years of continued success by its founding company Cleanroom Design & Construction Ltd.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 5 contacts → | ||||
Exact match “Semper Services provides building services, facilities management, engineering, and energy & utility infrastructure solutions across the UK and Europe.” Recorded in the RevenueBase company graph · Nov 6, 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 “mission critical facilities operators”. 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 97 mission critical facilities operators based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 336 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Mission critical facilities operators based in the United Kingdom at a glance
As of Nov 6, 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 97 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 “mission critical facilities operators” 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 336 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 “mission critical facilities operators”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many mission critical facilities operators are there based in the United Kingdom?
RevenueBase identified 97 company matches for mission critical facilities operators 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?
WB Power Services LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most mission critical facilities operators?
London leads with 15 company records, followed by Alloa (2) and Dartford (2).
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 336 professional contacts with verified work emails tracked across these 97 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.
Ready to reach these companies? Verified emails and direct dials for all 97 mission critical facilities operators based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Mission critical facilities operators by geography
- Mission critical facilities operators based in Australia
- Mission critical facilities operators based in Brazil
- Mission critical facilities operators based in Canada
- Mission critical facilities operators based in France
- Mission critical facilities operators based in India
- Mission critical facilities operators based in Mexico
- Mission critical facilities operators based in the Netherlands
- Mission critical facilities operators based in the United Arab Emirates
- Mission critical facilities operators based in the United States
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Mission critical facilities operators based in Australia
- Mission critical facilities operators based in Brazil
- Mission critical facilities operators based in Canada
- Mission critical facilities operators based in France
- Mission critical facilities operators based in India
- Mission critical facilities operators based in Mexico
Company intelligence · public preview
Top 25 mission critical facilities operators based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 97 matching company records for mission critical facilities operators based in the United Kingdom, with 1,995 tracked contacts and 336 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 mission critical facilities operators based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | HQ: Heanor, United KingdomReported employees: 51-200 | Heanor, United Kingdom | 51-200 | Exact match | 124 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: Gillingham, United KingdomReported employees: 51-200 | Gillingham, United Kingdom | 51-200 | Exact match | 64 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Glasgow, United KingdomReported employees: 51-200 | Glasgow, United Kingdom | 51-200 | Exact match | 49 contacts → |
“Alba Facilities Services have been successfully supporting and delivering solutions to our commercial building and property clients since 2003.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Leeds, United KingdomReported employees: 51-200 | Leeds, United Kingdom | 51-200 | Exact match | 47 contacts → |
“At ICH, we believe that every customer deserves to be more than just another number.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HQ: Crawley, United KingdomReported employees: 51-200 | Crawley, United Kingdom | 51-200 | Exact match | 39 contacts → |
“TDM Group is a specialist provider of data and communication infrastructure solutions for critical facilities across the UK and Middle East.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | HQ: Loughborough, United KingdomReported employees: 11-50 | Loughborough, United Kingdom | 11-50 | Exact match | 34 contacts → |
“on365 is a specialist provider of critical physical IT infrastructure and utility services for public sector, SME and corporate clients across the UK and Europe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: Stockton-on-tees, United KingdomReported employees: 11-50 | Stockton-on-tees, United Kingdom | 11-50 | Exact match | 32 contacts → |
“JH Mechanical Services is a leading provider of mechanical, electrical and water management services across the North of England.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Sutton Coldfield, United KingdomReported employees: 11-50 | Sutton Coldfield, United Kingdom | 11-50 | Exact match | 27 contacts → |
“Workspace Technology Ltd provide expertly engineered Mission Critical Infrastructure, Rack Colocation Hosting and Maintenance & Support Services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Berkshire, United KingdomReported employees: 51-200 | Berkshire, United Kingdom | 51-200 | Exact match | 24 contacts → |
“Haz Mission Critical provides professional Mission Critical support to clients around the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: Scunthorpe, United KingdomReported employees: 11-50 | Scunthorpe, United Kingdom | 11-50 | Exact match | 22 contacts → |
“Protecting the Heartbeat of British Business'' We create, maintain and manage controlled live environments vital for the operation of thousands of servers at the heart of the UK…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Sheffield, United KingdomReported employees: 11-50 | Sheffield, United Kingdom | 11-50 | Exact match | 18 contacts → |
“The Kirby Group are an integrated facility solutions provider offering services including; security, fire, IT+ communications, electrical, lighting, HVAC Heating, Ventilation &…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | HQ: Dartford, United KingdomReported employees: 11-50 | Dartford, United Kingdom | 11-50 | Exact match | 17 contacts → |
“Covering all aspects of HVAC, facilities management and electrical installation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HQ: Witham, United KingdomReported employees: 11-50 | Witham, United Kingdom | 11-50 | Exact match | 16 contacts → |
“EDP Europe specialises in the supply of critical infrastructure solutions for the data centre environment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: Gloucester, United KingdomReported employees: 11-50 | Gloucester, United Kingdom | 11-50 | Exact match | 13 contacts → |
“SmartDCS is a UK-based critical infrastructure specialist delivering end-to-end solutions across data centres, connectivity, electrical systems and renewable energy environments.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | HQ: Eynsham, United KingdomReported employees: 11-50 | Eynsham, United Kingdom | 11-50 | Exact match | 12 contacts → |
“Established in 1981, McAlpine Grant Ilco Ltd (MGi) specialise in providing installation, maintenance and servicing of cooling and heating units to properties throughout the UK.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | HQ: Alloa, United KingdomReported employees: 11-50 | Alloa, United Kingdom | 11-50 | Exact match | 12 contacts → |
“RMD is an independent specialist in integrated power and cooling solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Rochester, United KingdomReported employees: 51-200 | Rochester, United Kingdom | 51-200 | Exact match | 11 contacts → |
“Since 1979 the CC Cousins family-run business has specialised in providing a comprehensive range of facilities management solutions for customers ranging from small businesses to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HQ: Brierley Hill, United KingdomReported employees: 11-50 | Brierley Hill, United Kingdom | 11-50 | Exact match | 10 contacts → |
“BAXCREST LIMITED is a facilities services company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 10 contacts → |
“Cilantro Facilities Management's ethos is to proactively manage mechanical and electrical services across every development we work with - residential, commercial, mixed-use, and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: Rochester, United KingdomReported employees: 11-50 | Rochester, United Kingdom | 11-50 | Exact match | 9 contacts → |
“At D2 Facilities, we provide a wide range of building maintenance and facilities management services to commercial, industrial, and public sector clients.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Ealing, United KingdomReported employees: 11-50 | Ealing, United Kingdom | 11-50 | Exact match | 9 contacts → |
“At Landmark Facilities Management, we create stability in the buildings people rely on every day.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Gillingham, United KingdomReported employees: 11-50 | Gillingham, United Kingdom | 11-50 | Exact match | 9 contacts → |
“Welcome to Generator Installations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: Leeds, United KingdomReported employees: 1-10 | Leeds, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Advanced Power Technology is a leading independent supplier of Energy Efficient Critical Power and Cooling Systems to protect server rooms, data centres and other mission critical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: Halesowen, United KingdomReported employees: 51-200 | Halesowen, United Kingdom | 51-200 | Exact match | 7 contacts → |
“CDC Facilities Management Ltd (CDCfm) was formed as a direct result of 15 years of continued success by its founding company Cleanroom Design & Construction Ltd.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 5 contacts → |
“Semper Services provides building services, facilities management, engineering, and energy & utility infrastructure solutions across the UK and Europe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 97 company matches
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Mission critical facilities operators: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
90 records in the displayed employee bands.
7 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 97 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for mission critical facilities operators?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many mission critical facilities operators did RevenueBase find based in the United Kingdom?
The saved snapshot records 97 matching company records, 1,995 tracked contacts and 336 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Mission critical facilities operators by geography
- Mission critical facilities operators based in Australia
- Mission critical facilities operators based in Brazil
- Mission critical facilities operators based in Canada
- Mission critical facilities operators based in France
- Mission critical facilities operators based in India
- Mission critical facilities operators based in Mexico
- Mission critical facilities operators based in the Netherlands
- Mission critical facilities operators based in the United Arab Emirates
- Mission critical facilities operators based in the United States
Cite this list
RevenueBase Data Team. Top 25 mission critical facilities operators based in the United Kingdom. Snapshot: November 6, 2026. https://revenuebase.ai/companies/mission-critical-facilities-operators/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Mission critical facilities operators based in Australia
- Mission critical facilities operators based in Brazil
- Mission critical facilities operators based in Canada
- Mission critical facilities operators based in France
- Mission critical facilities operators based in India
- Mission critical facilities operators based in Mexico
Company intelligence · public preview
Top 25 mission critical facilities operators based in the United Kingdom
RevenueBase records 97 matching company records for mission critical facilities operators based in the United Kingdom, with 1,995 tracked contacts and 336 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 mission critical facilities operators based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | HQ: Heanor, United KingdomReported employees: 51-200 | Heanor, United Kingdom | 51-200 | Exact match | 124 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: Gillingham, United KingdomReported employees: 51-200 | Gillingham, United Kingdom | 51-200 | Exact match | 64 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: Glasgow, United KingdomReported employees: 51-200 | Glasgow, United Kingdom | 51-200 | Exact match | 49 contacts → |
“Alba Facilities Services have been successfully supporting and delivering solutions to our commercial building and property clients since 2003.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Leeds, United KingdomReported employees: 51-200 | Leeds, United Kingdom | 51-200 | Exact match | 47 contacts → |
“At ICH, we believe that every customer deserves to be more than just another number.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HQ: Crawley, United KingdomReported employees: 51-200 | Crawley, United Kingdom | 51-200 | Exact match | 39 contacts → |
“TDM Group is a specialist provider of data and communication infrastructure solutions for critical facilities across the UK and Middle East.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | HQ: Loughborough, United KingdomReported employees: 11-50 | Loughborough, United Kingdom | 11-50 | Exact match | 34 contacts → |
“on365 is a specialist provider of critical physical IT infrastructure and utility services for public sector, SME and corporate clients across the UK and Europe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | HQ: Stockton-on-tees, United KingdomReported employees: 11-50 | Stockton-on-tees, United Kingdom | 11-50 | Exact match | 32 contacts → |
“JH Mechanical Services is a leading provider of mechanical, electrical and water management services across the North of England.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Sutton Coldfield, United KingdomReported employees: 11-50 | Sutton Coldfield, United Kingdom | 11-50 | Exact match | 27 contacts → |
“Workspace Technology Ltd provide expertly engineered Mission Critical Infrastructure, Rack Colocation Hosting and Maintenance & Support Services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Berkshire, United KingdomReported employees: 51-200 | Berkshire, United Kingdom | 51-200 | Exact match | 24 contacts → |
“Haz Mission Critical provides professional Mission Critical support to clients around the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: Scunthorpe, United KingdomReported employees: 11-50 | Scunthorpe, United Kingdom | 11-50 | Exact match | 22 contacts → |
“Protecting the Heartbeat of British Business'' We create, maintain and manage controlled live environments vital for the operation of thousands of servers at the heart of the UK…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Sheffield, United KingdomReported employees: 11-50 | Sheffield, United Kingdom | 11-50 | Exact match | 18 contacts → |
“The Kirby Group are an integrated facility solutions provider offering services including; security, fire, IT+ communications, electrical, lighting, HVAC Heating, Ventilation &…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | HQ: Dartford, United KingdomReported employees: 11-50 | Dartford, United Kingdom | 11-50 | Exact match | 17 contacts → |
“Covering all aspects of HVAC, facilities management and electrical installation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HQ: Witham, United KingdomReported employees: 11-50 | Witham, United Kingdom | 11-50 | Exact match | 16 contacts → |
“EDP Europe specialises in the supply of critical infrastructure solutions for the data centre environment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HQ: Gloucester, United KingdomReported employees: 11-50 | Gloucester, United Kingdom | 11-50 | Exact match | 13 contacts → |
“SmartDCS is a UK-based critical infrastructure specialist delivering end-to-end solutions across data centres, connectivity, electrical systems and renewable energy environments.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | HQ: Eynsham, United KingdomReported employees: 11-50 | Eynsham, United Kingdom | 11-50 | Exact match | 12 contacts → |
“Established in 1981, McAlpine Grant Ilco Ltd (MGi) specialise in providing installation, maintenance and servicing of cooling and heating units to properties throughout the UK.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | HQ: Alloa, United KingdomReported employees: 11-50 | Alloa, United Kingdom | 11-50 | Exact match | 12 contacts → |
“RMD is an independent specialist in integrated power and cooling solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Rochester, United KingdomReported employees: 51-200 | Rochester, United Kingdom | 51-200 | Exact match | 11 contacts → |
“Since 1979 the CC Cousins family-run business has specialised in providing a comprehensive range of facilities management solutions for customers ranging from small businesses to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HQ: Brierley Hill, United KingdomReported employees: 11-50 | Brierley Hill, United Kingdom | 11-50 | Exact match | 10 contacts → |
“BAXCREST LIMITED is a facilities services company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 10 contacts → |
“Cilantro Facilities Management's ethos is to proactively manage mechanical and electrical services across every development we work with - residential, commercial, mixed-use, and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: Rochester, United KingdomReported employees: 11-50 | Rochester, United Kingdom | 11-50 | Exact match | 9 contacts → |
“At D2 Facilities, we provide a wide range of building maintenance and facilities management services to commercial, industrial, and public sector clients.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HQ: Ealing, United KingdomReported employees: 11-50 | Ealing, United Kingdom | 11-50 | Exact match | 9 contacts → |
“At Landmark Facilities Management, we create stability in the buildings people rely on every day.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | HQ: Gillingham, United KingdomReported employees: 11-50 | Gillingham, United Kingdom | 11-50 | Exact match | 9 contacts → |
“Welcome to Generator Installations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: Leeds, United KingdomReported employees: 1-10 | Leeds, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Advanced Power Technology is a leading independent supplier of Energy Efficient Critical Power and Cooling Systems to protect server rooms, data centres and other mission critical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: Halesowen, United KingdomReported employees: 51-200 | Halesowen, United Kingdom | 51-200 | Exact match | 7 contacts → |
“CDC Facilities Management Ltd (CDCfm) was formed as a direct result of 15 years of continued success by its founding company Cleanroom Design & Construction Ltd.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 5 contacts → |
“Semper Services provides building services, facilities management, engineering, and energy & utility infrastructure solutions across the UK and Europe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 97 company matches
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Mission critical facilities operators: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
90 records in the displayed employee bands.
7 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 97 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
Publisher-reported method study
The published RevenueBase SmartSearch benchmark
86% good or better at Exact
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. It reports 86% of Exact matches judged good or better, and 77% for a 240-pair sample of one- or two-word categories. This evaluates the method across study queries rather than auditing this individual list.
Read the study and full methodology ↗RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for mission critical facilities operators?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many mission critical facilities operators did RevenueBase find based in the United Kingdom?
The saved snapshot records 97 matching company records, 1,995 tracked contacts and 336 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 mission critical facilities operators based in the United Kingdom. Snapshot: November 6, 2026. https://revenuebase.ai/companies/mission-critical-facilities-operators/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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