Company lists · Data refreshed September 2026
Top 25 Electrical testing and diagnostics based in the United Kingdom
RevenueBase identified 1,108 company matches for electrical testing and diagnostics associated with the United Kingdom as of September 2026 and tracks 4,378 professional contacts across them, including 920 with verified work emails. London is the largest hub.
This list covers company matches for electrical testing and diagnostics 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 September 19, 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 electrical testing and diagnostics based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 137 contacts → | ||||
Exact match “Founded in 2010, Guardian Electrical Compliance Ltd have become the market leaders in terms of Duty Holder guidance, technical & legislative support, site delivery and after sales…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 83 contacts → | ||||
Exact match “With over 75 years’ experience at the cutting edge of electrical safety testing, our expertise and innovations have produced a number of world firsts.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 79 contacts → | ||||
Exact match “AKD’s clients get quick results, normally leading to reduced costs and gaining an improved service.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 53 contacts → | ||||
Exact match “We are the first choice trusted partner, supporting businesses in meeting their regulatory electrical testing requirements.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 51 contacts → | ||||
Exact match “Monitra (formerly HVPD) are experts in the field of Partial Discharge (PD) testing and monitoring of Medium Voltage and High Voltage electrical equipment, which can be performed…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 51 contacts → | ||||
Exact match “NES is an Industrial and Commercial Electrical Engineering and Contracting business, based in the North and North East of Scotland.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 42 contacts → | ||||
Exact match “Calbarrie Compliance Services Ltd (Calbarrie) is the UK’s market leader in electrical compliance services and has been trading within the Health & Safety and Compliance sectors…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 36 contacts → | ||||
Exact match “COMPANY OVERVIEW Based near Southampton, Intersafe are compliance specialists providing a range of electrical testing services for large, commercial sites.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 35 contacts → | ||||
Exact match “SA3 Power are a Specialized Electrical Installer that provides electrical services for the Data Centers Industry across Europe.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 32 contacts → | ||||
Exact match “For the last 25 years, Group Management Electrical Surveys have been providing Electrical Inspection, Test and Documentation services to many of the UK's leading companies.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 32 contacts → | ||||
Exact match “With over 95 years of experience, Martindale Electric is one of the most trusted brands in electrical safety testing.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 30 contacts → | ||||
Exact match “Ashby Electrical provide a complete range of electrical design, installation, testing, inspection and maintenance services nationwide.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 29 contacts → | ||||
Exact match “HCM Electrical Ltd is a trusted provider of high-quality electrical services, delivering excellence to clients across various industries.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 26 contacts → | ||||
Exact match “Firstfield Electrical Ltd are specialists in large-scale industrial and commercial electrical installations, control systems, inspections and domestic works.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 25 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 24 contacts → | ||||
Exact match “The Volt Group Scotland Ltd team is made up of the most experienced electrical installers in Scotland.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 22 contacts → | ||||
Exact match “Safety Inspections Group Ltd specialise in electrical safety for both residential and commercial premises, and was created by the founders of a multi-award winning electrical…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 21 contacts → | ||||
Exact match “At Novus Compliance Services Ltd we specialise in Electrical Testing and Inspection, Maintenance, Installation design, Energy Management and refurbishment for a wide range of…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 21 contacts → | ||||
Exact match “RNM ELECTRICAL LIMITED is a construction company based out of 10 THE HILLOCK THE HILLOCK, BOLTON, United Kingdom.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 21 contacts → | ||||
Exact match “Here at EML Electrical we pride ourselves on providing quality installations at a competitive price.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 20 contacts → | ||||
Exact match “HK Engineering Ltd is a leading engineering company specialising in electrical and gas testing and innovative solutions, with a solid commitment to excellence.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 17 contacts → | ||||
Exact match “We are the UK’s leading provider of automated testing solutions for electronic and electrical products.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 17 contacts → | ||||
Exact match “Since 2012, Lux have been providing electrical services to a variety of clients.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 16 contacts → | ||||
Exact match “Founded in Spin UK Ltd was the second company in the Spin Group.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 16 contacts → | ||||
Exact match “With nearly 60 years' of experience, T James Electrical Ltd is one of the most respected and well established electrical contractors in the East Midlands.” Recorded in the RevenueBase company graph · Sep 19, 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 “electrical testing and diagnostics”. 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 1,108 electrical testing and diagnostics based in the United Kingdom
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Electrical testing and diagnostics 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 1,108 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 “electrical testing and diagnostics” 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 920 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 19, 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 “electrical testing and diagnostics”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many electrical testing and diagnostics are there based in the United Kingdom?
RevenueBase identified 1,108 company matches for electrical testing and diagnostics associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Guardian Electrical Compliance LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most electrical testing and diagnostics?
London leads with 76 company records, followed by Manchester (18) and Leicester (16).
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 920 professional contacts with verified work emails tracked across these 1,108 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,108 electrical testing and diagnostics based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Electrical testing and diagnostics by geography
- Electrical testing and diagnostics based in Australia
- Electrical testing and diagnostics based in Belgium
- Electrical testing and diagnostics based in Brazil
- Electrical testing and diagnostics based in Canada
- Electrical testing and diagnostics based in France
- Electrical testing and diagnostics based in Germany
- Electrical testing and diagnostics based in India
- Electrical testing and diagnostics based in Italy
- Electrical testing and diagnostics based in the Netherlands
- Electrical testing and diagnostics based in New Zealand
- Electrical testing and diagnostics based in Norway
- Electrical testing and diagnostics based in Sweden
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
- Electrical testing and diagnostics based in Australia
- Electrical testing and diagnostics based in Belgium
- Electrical testing and diagnostics based in Brazil
- Electrical testing and diagnostics based in Canada
- Electrical testing and diagnostics based in France
- Electrical testing and diagnostics based in Germany
Company intelligence · public preview
Top 25 electrical testing and diagnostics 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 1,108 matching company records for electrical testing and diagnostics based in the United Kingdom, with 4,378 tracked contacts and 920 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: September 19, 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 electrical testing and diagnostics 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 | Guardian Electrical Compliance LTDguardianelectrical.co.uk HQ: Sheffield, United KingdomReported employees: 51-200 | Sheffield, United Kingdom | 51-200 | Exact match | 137 contacts → |
“Founded in 2010, Guardian Electrical Compliance Ltd have become the market leaders in terms of Duty Holder guidance, technical & legislative support, site delivery and after sales…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Seawardseaward.com HQ: Peterlee, United KingdomReported employees: 51-200 | Peterlee, United Kingdom | 51-200 | Exact match | 83 contacts → |
“With over 75 years’ experience at the cutting edge of electrical safety testing, our expertise and innovations have produced a number of world firsts.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  AKDakd.netHQ: Edinburgh, United KingdomReported employees: 51-200 | Edinburgh, United Kingdom | 51-200 | Exact match | 79 contacts → |
“AKD’s clients get quick results, normally leading to reduced costs and gaining an improved service.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Lanteibesgroup.com HQ: Preston, United KingdomReported employees: 51-200 | Preston, United Kingdom | 51-200 | Exact match | 53 contacts → |
“We are the first choice trusted partner, supporting businesses in meeting their regulatory electrical testing requirements.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Monitramonitra.co.uk HQ: Manchester, United KingdomReported employees: 51-200 | Manchester, United Kingdom | 51-200 | Exact match | 51 contacts → |
“Monitra (formerly HVPD) are experts in the field of Partial Discharge (PD) testing and monitoring of Medium Voltage and High Voltage electrical equipment, which can be performed…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | NESnesnorth.com HQ: Inverness, United KingdomReported employees: 11-50 | Inverness, United Kingdom | 11-50 | Exact match | 51 contacts → |
“NES is an Industrial and Commercial Electrical Engineering and Contracting business, based in the North and North East of Scotland.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Calbarrie Compliance Services LTDcalbarrie.com HQ: Cheltenham, United KingdomReported employees: 51-200 | Cheltenham, United Kingdom | 51-200 | Exact match | 42 contacts → |
“Calbarrie Compliance Services Ltd (Calbarrie) is the UK’s market leader in electrical compliance services and has been trading within the Health & Safety and Compliance sectors…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Intersafe Limitedintersafe.co.uk HQ: Southampton, United KingdomReported employees: 11-50 | Southampton, United Kingdom | 11-50 | Exact match | 36 contacts → |
“COMPANY OVERVIEW Based near Southampton, Intersafe are compliance specialists providing a range of electrical testing services for large, commercial sites.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Sa3 Powersa3power.com HQ: Cookstown, United KingdomReported employees: 51-200 | Cookstown, United Kingdom | 51-200 | Exact match | 35 contacts → |
“SA3 Power are a Specialized Electrical Installer that provides electrical services for the Data Centers Industry across Europe.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Group Management Electrical Surveys Limitedgroupmanagement.com HQ: Halifax, United KingdomReported employees: 11-50 | Halifax, United Kingdom | 11-50 | Exact match | 32 contacts → |
“For the last 25 years, Group Management Electrical Surveys have been providing Electrical Inspection, Test and Documentation services to many of the UK's leading companies.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Martindale Electric Co. LTDmartindale-electric.co.uk HQ: Watford, United KingdomReported employees: 11-50 | Watford, United Kingdom | 11-50 | Exact match | 32 contacts → |
“With over 95 years of experience, Martindale Electric is one of the most trusted brands in electrical safety testing.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Ashby Electrical Limitedashbyelectrical.co.ukHQ: Pelsall, United KingdomReported employees: 11-50 | Pelsall, United Kingdom | 11-50 | Exact match | 30 contacts → |
“Ashby Electrical provide a complete range of electrical design, installation, testing, inspection and maintenance services nationwide.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HCM Electrical LTDhcm-electrical.co.uk HQ: England, United KingdomReported employees: 51-200 | England, United Kingdom | 51-200 | Exact match | 29 contacts → |
“HCM Electrical Ltd is a trusted provider of high-quality electrical services, delivering excellence to clients across various industries.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Firstfield Electrical LTDfirstfield.co.ukHQ: Ipswich, United KingdomReported employees: 11-50 | Ipswich, United Kingdom | 11-50 | Exact match | 26 contacts → |
“Firstfield Electrical Ltd are specialists in large-scale industrial and commercial electrical installations, control systems, inspections and domestic works.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  MD Electrical Contractors LTDmdeltd.co.ukHQ: Glasgow, United KingdomReported employees: 11-50 | Glasgow, United Kingdom | 11-50 | Exact match | 25 contacts → |
“MD Electrical Contractors specialises in providing top-tier electrical services to a diverse range of clients.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Volt Group Scotland LTDvoltgroup-scot.co.uk HQ: Glasgow, United KingdomReported employees: 11-50 | Glasgow, United Kingdom | 11-50 | Exact match | 24 contacts → |
“The Volt Group Scotland Ltd team is made up of the most experienced electrical installers in Scotland.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Safety Inspections Group LTDsafetyig.com HQ: Leeds, United KingdomReported employees: 11-50 | Leeds, United Kingdom | 11-50 | Exact match | 22 contacts → |
“Safety Inspections Group Ltd specialise in electrical safety for both residential and commercial premises, and was created by the founders of a multi-award winning electrical…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Novus Compliance Services Limitednovuscompliance.co.uk HQ: Bishop Stortford, United KingdomReported employees: 51-200 | Bishop Stortford, United Kingdom | 51-200 | Exact match | 21 contacts → |
“At Novus Compliance Services Ltd we specialise in Electrical Testing and Inspection, Maintenance, Installation design, Energy Management and refurbishment for a wide range of…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | RNM Electrical Limitedrnmservices.co.uk HQ: Bolton, United KingdomReported employees: 51-200 | Bolton, United Kingdom | 51-200 | Exact match | 21 contacts → |
“RNM ELECTRICAL LIMITED is a construction company based out of 10 THE HILLOCK THE HILLOCK, BOLTON, United Kingdom.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | EML Electrical Contractors LTDemlelectrical.co.uk HQ: Peterborough, United KingdomReported employees: 11-50 | Peterborough, United Kingdom | 11-50 | Exact match | 21 contacts → |
“Here at EML Electrical we pride ourselves on providing quality installations at a competitive price.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  HK Engineering LTDhkengineeringltd.co.ukHQ: Melksham, United KingdomReported employees: 11-50 | Melksham, United Kingdom | 11-50 | Exact match | 20 contacts → |
“HK Engineering Ltd is a leading engineering company specialising in electrical and gas testing and innovative solutions, with a solid commitment to excellence.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  ATE Solutions LTDatesolutions.co.ukHQ: Blisworth, United KingdomReported employees: 11-50 | Blisworth, United Kingdom | 11-50 | Exact match | 17 contacts → |
“We are the UK’s leading provider of automated testing solutions for electronic and electrical products.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | LUX Property Serviceslux-services.co.uk HQ: Hoddesdon, United KingdomReported employees: 51-200 | Hoddesdon, United Kingdom | 51-200 | Exact match | 17 contacts → |
“Since 2012, Lux have been providing electrical services to a variety of clients.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Spin UK Limitedspinuk.com HQ: Worcester, United KingdomReported employees: 11-50 | Worcester, United Kingdom | 11-50 | Exact match | 16 contacts → |
“Founded in Spin UK Ltd was the second company in the Spin Group.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | T James Electricaltjameselectrical.co.uk HQ: Kettering, United KingdomReported employees: 11-50 | Kettering, United Kingdom | 11-50 | Exact match | 16 contacts → |
“With nearly 60 years' of experience, T James Electrical Ltd is one of the most respected and well established electrical contractors in the East Midlands.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,108 company matches
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Electrical testing and diagnostics: dataset insights
September 19, 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
1,063 records in the displayed employee bands.
45 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 1,108 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: September 19, 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 electrical testing and diagnostics?
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 electrical testing and diagnostics did RevenueBase find based in the United Kingdom?
The saved snapshot records 1,108 matching company records, 4,378 tracked contacts and 920 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: September 19, 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
Electrical testing and diagnostics by geography
- Electrical testing and diagnostics based in Australia
- Electrical testing and diagnostics based in Belgium
- Electrical testing and diagnostics based in Brazil
- Electrical testing and diagnostics based in Canada
- Electrical testing and diagnostics based in France
- Electrical testing and diagnostics based in Germany
- Electrical testing and diagnostics based in India
- Electrical testing and diagnostics based in Italy
- Electrical testing and diagnostics based in the Netherlands
- Electrical testing and diagnostics based in New Zealand
- Electrical testing and diagnostics based in Norway
- Electrical testing and diagnostics based in Sweden
Cite this list
RevenueBase Data Team. Top 25 electrical testing and diagnostics based in the United Kingdom. Snapshot: September 19, 2026. https://revenuebase.ai/companies/electrical-testing-and-diagnostics/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
- Electrical testing and diagnostics based in Australia
- Electrical testing and diagnostics based in Belgium
- Electrical testing and diagnostics based in Brazil
- Electrical testing and diagnostics based in Canada
- Electrical testing and diagnostics based in France
- Electrical testing and diagnostics based in Germany
Company intelligence · public preview
Top 25 electrical testing and diagnostics based in the United Kingdom
RevenueBase records 1,108 matching company records for electrical testing and diagnostics based in the United Kingdom, with 4,378 tracked contacts and 920 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: September 19, 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 electrical testing and diagnostics 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 | Guardian Electrical Compliance LTDguardianelectrical.co.uk HQ: Sheffield, United KingdomReported employees: 51-200 | Sheffield, United Kingdom | 51-200 | Exact match | 137 contacts → |
“Founded in 2010, Guardian Electrical Compliance Ltd have become the market leaders in terms of Duty Holder guidance, technical & legislative support, site delivery and after sales…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Seawardseaward.com HQ: Peterlee, United KingdomReported employees: 51-200 | Peterlee, United Kingdom | 51-200 | Exact match | 83 contacts → |
“With over 75 years’ experience at the cutting edge of electrical safety testing, our expertise and innovations have produced a number of world firsts.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | AKDakd.net HQ: Edinburgh, United KingdomReported employees: 51-200 | Edinburgh, United Kingdom | 51-200 | Exact match | 79 contacts → |
“AKD’s clients get quick results, normally leading to reduced costs and gaining an improved service.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Lanteibesgroup.com HQ: Preston, United KingdomReported employees: 51-200 | Preston, United Kingdom | 51-200 | Exact match | 53 contacts → |
“We are the first choice trusted partner, supporting businesses in meeting their regulatory electrical testing requirements.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Monitramonitra.co.uk HQ: Manchester, United KingdomReported employees: 51-200 | Manchester, United Kingdom | 51-200 | Exact match | 51 contacts → |
“Monitra (formerly HVPD) are experts in the field of Partial Discharge (PD) testing and monitoring of Medium Voltage and High Voltage electrical equipment, which can be performed…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | NESnesnorth.com HQ: Inverness, United KingdomReported employees: 11-50 | Inverness, United Kingdom | 11-50 | Exact match | 51 contacts → |
“NES is an Industrial and Commercial Electrical Engineering and Contracting business, based in the North and North East of Scotland.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Calbarrie Compliance Services LTDcalbarrie.com HQ: Cheltenham, United KingdomReported employees: 51-200 | Cheltenham, United Kingdom | 51-200 | Exact match | 42 contacts → |
“Calbarrie Compliance Services Ltd (Calbarrie) is the UK’s market leader in electrical compliance services and has been trading within the Health & Safety and Compliance sectors…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Intersafe Limitedintersafe.co.uk HQ: Southampton, United KingdomReported employees: 11-50 | Southampton, United Kingdom | 11-50 | Exact match | 36 contacts → |
“COMPANY OVERVIEW Based near Southampton, Intersafe are compliance specialists providing a range of electrical testing services for large, commercial sites.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Sa3 Powersa3power.com HQ: Cookstown, United KingdomReported employees: 51-200 | Cookstown, United Kingdom | 51-200 | Exact match | 35 contacts → |
“SA3 Power are a Specialized Electrical Installer that provides electrical services for the Data Centers Industry across Europe.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Group Management Electrical Surveys Limitedgroupmanagement.com HQ: Halifax, United KingdomReported employees: 11-50 | Halifax, United Kingdom | 11-50 | Exact match | 32 contacts → |
“For the last 25 years, Group Management Electrical Surveys have been providing Electrical Inspection, Test and Documentation services to many of the UK's leading companies.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Martindale Electric Co. LTDmartindale-electric.co.uk HQ: Watford, United KingdomReported employees: 11-50 | Watford, United Kingdom | 11-50 | Exact match | 32 contacts → |
“With over 95 years of experience, Martindale Electric is one of the most trusted brands in electrical safety testing.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Ashby Electrical Limitedashbyelectrical.co.uk HQ: Pelsall, United KingdomReported employees: 11-50 | Pelsall, United Kingdom | 11-50 | Exact match | 30 contacts → |
“Ashby Electrical provide a complete range of electrical design, installation, testing, inspection and maintenance services nationwide.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HCM Electrical LTDhcm-electrical.co.uk HQ: England, United KingdomReported employees: 51-200 | England, United Kingdom | 51-200 | Exact match | 29 contacts → |
“HCM Electrical Ltd is a trusted provider of high-quality electrical services, delivering excellence to clients across various industries.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Firstfield Electrical LTDfirstfield.co.uk HQ: Ipswich, United KingdomReported employees: 11-50 | Ipswich, United Kingdom | 11-50 | Exact match | 26 contacts → |
“Firstfield Electrical Ltd are specialists in large-scale industrial and commercial electrical installations, control systems, inspections and domestic works.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | MD Electrical Contractors LTDmdeltd.co.uk HQ: Glasgow, United KingdomReported employees: 11-50 | Glasgow, United Kingdom | 11-50 | Exact match | 25 contacts → |
“MD Electrical Contractors specialises in providing top-tier electrical services to a diverse range of clients.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Volt Group Scotland LTDvoltgroup-scot.co.uk HQ: Glasgow, United KingdomReported employees: 11-50 | Glasgow, United Kingdom | 11-50 | Exact match | 24 contacts → |
“The Volt Group Scotland Ltd team is made up of the most experienced electrical installers in Scotland.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Safety Inspections Group LTDsafetyig.com HQ: Leeds, United KingdomReported employees: 11-50 | Leeds, United Kingdom | 11-50 | Exact match | 22 contacts → |
“Safety Inspections Group Ltd specialise in electrical safety for both residential and commercial premises, and was created by the founders of a multi-award winning electrical…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Novus Compliance Services Limitednovuscompliance.co.uk HQ: Bishop Stortford, United KingdomReported employees: 51-200 | Bishop Stortford, United Kingdom | 51-200 | Exact match | 21 contacts → |
“At Novus Compliance Services Ltd we specialise in Electrical Testing and Inspection, Maintenance, Installation design, Energy Management and refurbishment for a wide range of…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | RNM Electrical Limitedrnmservices.co.uk HQ: Bolton, United KingdomReported employees: 51-200 | Bolton, United Kingdom | 51-200 | Exact match | 21 contacts → |
“RNM ELECTRICAL LIMITED is a construction company based out of 10 THE HILLOCK THE HILLOCK, BOLTON, United Kingdom.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | EML Electrical Contractors LTDemlelectrical.co.uk HQ: Peterborough, United KingdomReported employees: 11-50 | Peterborough, United Kingdom | 11-50 | Exact match | 21 contacts → |
“Here at EML Electrical we pride ourselves on providing quality installations at a competitive price.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | HK Engineering LTDhkengineeringltd.co.uk HQ: Melksham, United KingdomReported employees: 11-50 | Melksham, United Kingdom | 11-50 | Exact match | 20 contacts → |
“HK Engineering Ltd is a leading engineering company specialising in electrical and gas testing and innovative solutions, with a solid commitment to excellence.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | ATE Solutions LTDatesolutions.co.uk HQ: Blisworth, United KingdomReported employees: 11-50 | Blisworth, United Kingdom | 11-50 | Exact match | 17 contacts → |
“We are the UK’s leading provider of automated testing solutions for electronic and electrical products.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | LUX Property Serviceslux-services.co.uk HQ: Hoddesdon, United KingdomReported employees: 51-200 | Hoddesdon, United Kingdom | 51-200 | Exact match | 17 contacts → |
“Since 2012, Lux have been providing electrical services to a variety of clients.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Spin UK Limitedspinuk.com HQ: Worcester, United KingdomReported employees: 11-50 | Worcester, United Kingdom | 11-50 | Exact match | 16 contacts → |
“Founded in Spin UK Ltd was the second company in the Spin Group.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | T James Electricaltjameselectrical.co.uk HQ: Kettering, United KingdomReported employees: 11-50 | Kettering, United Kingdom | 11-50 | Exact match | 16 contacts → |
“With nearly 60 years' of experience, T James Electrical Ltd is one of the most respected and well established electrical contractors in the East Midlands.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,108 company matches
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Electrical testing and diagnostics: dataset insights
September 19, 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
1,063 records in the displayed employee bands.
45 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 1,108 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: September 19, 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 electrical testing and diagnostics?
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 electrical testing and diagnostics did RevenueBase find based in the United Kingdom?
The saved snapshot records 1,108 matching company records, 4,378 tracked contacts and 920 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: September 19, 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 electrical testing and diagnostics based in the United Kingdom. Snapshot: September 19, 2026. https://revenuebase.ai/companies/electrical-testing-and-diagnostics/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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