Company lists · Data refreshed November 2026

Top 25 Diesel engine diagnostics companies based in the United Kingdom

RevenueBase identified 575 company matches for diesel engine diagnostics companies associated with the United Kingdom as of November 2026 and tracks 2,408 professional contacts across them, including 707 with verified work emails. London is the largest hub.

This list covers company matches for diesel engine diagnostics companies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
575Companies
2,408Contacts tracked
707Verified emails
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The 25 largest diesel engine diagnostics companies based in the United Kingdom

Ranked by team size
Top 25 of 575 company matches for diesel engine diagnostics companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNottinghamshire, United KingdomHQ recorded Nov 6, 202651-200105 contacts →

Exact match

“Mitchell Powesystems specialise in the supply, overhaul and repair of industrial & Marine Diesel Engines, Allison Automatic Transmissions, Off-Highway Driveline Products and the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchGreat Yarmouth, United KingdomHQ recorded Nov 6, 202651-200100 contacts →

Exact match

“Prior Power Solutions is a leading supplier of specialised diesel-driven, alternative, and sustainable power systems, equipment and services to the oil and gas, marine…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchCoventry, United KingdomHQ recorded Nov 6, 202651-20090 contacts →

Exact match

“Caudwell Marine was founded to bring a new standard of diesel outboard technology to the marine industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchAppleby Magna, United KingdomHQ recorded Nov 6, 2026201-50071 contacts →

Exact match

“Sapphire Vehicle Services Ltd are experts in Commercial Vehicle Repairs & Maintenance who specialize in offering a "One Stop Shop" solution for our customers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“Royston is a leading provider of diesel engineering services, supporting customers worldwide across the marine, offshore, industrial, defence and rail sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchPreston, United KingdomHQ recorded Nov 6, 202651-20057 contacts →

Exact match

“Merlin Diesel Systems Ltd is a multi-agency company totally dedicated to the global supply of spare parts and test equipment for the servicing of diesel fuel injection systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchColchester, United KingdomHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“Providing Safety through Mechanical Excellence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchGainsborough, United KingdomHQ recorded Nov 6, 202651-20038 contacts →

Exact match

“Ceramex is a leading international supplier of commercial DPF cleaning and remanufacturing services and technology with operations in Europe, North America and Japan.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchWest Bromwich, United KingdomHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“IPU Group design and manufacture high quality engine starting, fuel polishing, emissions solutions and components for critical diesel and gas engine applications.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSouthampton, United KingdomHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“PB ASHER Ltd specialise in the reconditioning, supply and exchange of Marine, Commercial and Industrial engine components such as Cylinder Heads, Liners, Pistons, Con Rods, Fuel…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLuton, United KingdomHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“Repairify has established itself as a true full-service diagnostics provider, delivering comprehensive automotive technology solutions through local, remote, mobile, and workshop…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBarnsley, United KingdomHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“Established in 1983 in the United Kingdom, ABI Electronics enables organisations worldwide to understand, test, repair and sustain electronic systems at component level.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLeicester, United KingdomHQ recorded Nov 6, 20261-1023 contacts →

Exact match

“With more than 20 years of experience in the industry and a genuine passion for our work, Autotronics is one of the foremost experts in in-circuit repairs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSwadlincote, United KingdomHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Eclipse Automotive Technology Ltd are the UK & Ireland's leading supplier of the Jaltest multi-brand diagnostic tools to cover Trucks, Trailers, Bus/Coach, Agriculture/Plant…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBedford, United KingdomHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Our workshops can handle all types of repairs, on all kinds of vehicles at our Bedford branch.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchWorcester, United KingdomHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Founded in Spin UK Ltd was the second company in the Spin Group.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchClowne, United KingdomHQ recorded Nov 6, 202651-20018 contacts →

Exact match

“Alliance Transport Technologies Ltd specialises in providing leading aftermarket products and services for the bus, coach and commercial vehicle industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchAlfreton, United KingdomHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Welcome to H W Martin (Fleet Maintenance) Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchScunthorpe, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“With our 25 Mobile Service Vehicles we can attend your commercial vehicle wherever it may be in 60-90.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchEllistown, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Anderson Commercials Ltd are dedicated to providing a professional service at a competitive price, our portfolio of customers include blue chip companies such as GE/TIP Vehicle…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchBarnsley, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“We offer Bespoke Tuning Products, Custom ECU Mapping, Diagnostics, Servicing, Repairs as as well as a wide range of New & Used Genuine and OEM quality parts.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchTeignmouth, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Sleeman and Hawken have been trading over 50 years with marine and industrial diesel engines plus related products.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBedford, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAshford, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“D&D Autos is an award-winning, family-owned MOT, servicing and repair business that has built its reputation on providing unbeatable levels of customer care and high quality…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchRoss-on-wye, United KingdomHQ recorded Nov 6, 20261-1011 contacts →

Exact match

Recorded description not available.

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

Showing 25 of 575 diesel engine diagnostics companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 707 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Diesel engine diagnostics companies based in the United Kingdom at a glance

As of Nov 6, 2026
29.4%Verified-email coverage
4.2Average contacts per company
1-10Median size (employees)
3.7%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
380
11-50
111
51-200
18
201-500
1

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 575 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 “diesel engine diagnostics companies” 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 707 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 “diesel engine diagnostics companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many diesel engine diagnostics companies are there based in the United Kingdom?

RevenueBase identified 575 company matches for diesel engine diagnostics companies 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?

Mitchell Powersystems tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most diesel engine diagnostics companies?

London leads with 21 company records, followed by Birmingham (12) and Bristol (9).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 707 professional contacts with verified work emails tracked across these 575 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 575 diesel engine diagnostics companies based in the United Kingdom. Start with a free account, no credit card.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.