Company lists · Data refreshed September 2026

Top 25 Mechanical engineering firms based in the United Kingdom

Name: Mechanical engineering firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,077 companies tracked

RevenueBase identified 1,077 mechanical engineering firms headquartered in the United Kingdom as of September 2026 and tracks 7,510 professional contacts across them, including 2,871 with verified work emails. London is the largest hub.

This list covers mechanical engineering firms headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

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

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

1,077Companies

7,510Contacts tracked

2,871Verified emails

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The 25 largest mechanical engineering firms based in the United Kingdom

Ranked by team size

Top 25 of 1,077 mechanical engineering firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to mechanical engineering firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Hoare LEA	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	501-1,000	1,103 contacts →
	Partial evidence “We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.” Source: RevenueBase Database · checked Sep 17, 2026
2	MARCH	Indirect evidence	Multiple Locations Uk-wide, United KingdomHQ checked Sep 17, 2026	1,001-5,000	273 contacts →
	Indirect evidence “We are March.” Source: RevenueBase Database · checked Sep 17, 2026
3	Z-Tech Control Systems LTD	Indirect evidence	Swavesey, United KingdomHQ checked Sep 17, 2026	201-500	156 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
4	Wintech	Partial evidence	Wolverhampton, United KingdomHQ checked Sep 17, 2026	51-200	127 contacts →
	Partial evidence “Wintech are a building engineering consultancy service with a strong design heritage, working on projects ranging from new build, sustainable developments to complex building…” Source: RevenueBase Database · checked Sep 17, 2026
5	Hulley And Kirkwood	Indirect evidence	Glasgow, United KingdomHQ checked Sep 17, 2026	51-200	98 contacts →
	Indirect evidence “We are an independent Building Services Consultancy providing national coverage.” Source: RevenueBase Database · checked Sep 17, 2026
6	Picow Engineering Group	Strong evidence	Runcorn, United KingdomHQ checked Sep 17, 2026	51-200	88 contacts →
	Strong evidence “Mechanical, Electrical, Design and Construction Services Since 1977, Picow Engineering has been delivering a cost-effective engineering service to a growing number of blue chip…” Source: RevenueBase Database · checked Sep 17, 2026
7	Richter	Partial evidence	Marlow, United KingdomHQ checked Sep 17, 2026	51-200	85 contacts →
	Partial evidence “Engineering Value Together - from incubation, to project realisation.” Source: RevenueBase Database · checked Sep 17, 2026
8	Acorn Engineering Limited	Strong evidence	Slough, United KingdomHQ checked Sep 17, 2026	51-200	78 contacts →
	Strong evidence “With over 40 years’ experience in our industry, we are experts in the specialist area of mechanical and electrical engineering.” Source: RevenueBase Database · checked Sep 17, 2026
9	Delap & Waller	Partial evidence	Antrim /, United KingdomHQ checked Sep 17, 2026	51-200	73 contacts →
	Partial evidence “Delap & Waller Mechanical and Electrical Building Services Engineers was founded in 1911, and to this day we remain a leader in the field of Mechanical and Electrical Building…” Source: RevenueBase Database · checked Sep 17, 2026
10	Banyards	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	58 contacts →
	Partial evidence “We are a specialist consultancy business delivering mechanical and electrical design and commissioning consultancy.” Source: RevenueBase Database · checked Sep 17, 2026
11	Qoda Consulting	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	58 contacts →
	Indirect evidence “Welcome to QODA: working hard to meet the needs of our clients and all those who use the buildings we help to create.” Source: RevenueBase Database · checked Sep 17, 2026
12	Gravity Consulting Engineers LTD	Partial evidence	Bracknell, United KingdomHQ checked Sep 17, 2026	11-50	58 contacts →
	Partial evidence “We are an engineering consultancy that specialises in structural design and detailing.” Source: RevenueBase Database · checked Sep 17, 2026
13	Cudd Bentley Consulting LTD	Indirect evidence	Ascot, United KingdomHQ checked Sep 17, 2026	51-200	56 contacts →
	Indirect evidence “Cudd Bentley Consulting's expert services range from the projects initial surveys through to feasibility studies, detailed MEP design to completion on behalf of clients that…” Source: RevenueBase Database · checked Sep 17, 2026
14	Unitspark	Strong evidence	Hatfield, United KingdomHQ checked Sep 17, 2026	11-50	53 contacts →
	Strong evidence “Unitspark Ltd provide fabrication, welding and bespoke mechanical engineering from design, to manufacture, to commissioning.” Source: RevenueBase Database · checked Sep 17, 2026
15	Qualter, Hall & CO Limited	Partial evidence	Barnsley, United KingdomHQ checked Sep 17, 2026	51-200	52 contacts →
	Partial evidence “Founded in 1860, Qualter Hall owns a continuous history of engineering excellence in the UK and internationally.” Source: RevenueBase Database · checked Sep 17, 2026
16	Bendalls Engineering	Partial evidence	Carlisle, United KingdomHQ checked Sep 17, 2026	51-200	48 contacts →
	Partial evidence “Bendalls Engineering has a strong reputation in engineering, located in Carlisle, Cumbria.” Source: RevenueBase Database · checked Sep 17, 2026
17	KGD Industrial Services	Strong evidence	Hereford, United KingdomHQ checked Sep 17, 2026	51-200	48 contacts →
	Strong evidence “We provide in-house comprehensive engineering for all disciplines such as mechanical (3d modelling), electrical & instrumentation.” Source: RevenueBase Database · checked Sep 17, 2026
18	Response Engineering Solutions Limited	Strong evidence	Hirwaun, United KingdomHQ checked Sep 17, 2026	51-200	47 contacts →
	Strong evidence “Response Engineering Solutions Limited is a proactive company operating within the complex fields of mechanical & electrical engineering within the UK’s wide range of material…” Source: RevenueBase Database · checked Sep 17, 2026
19	Peacock Technology	Strong evidence	Stirling, United KingdomHQ checked Sep 17, 2026	11-50	43 contacts →
	Strong evidence “Peacock Technology is an engineering consultancy company with capabilities in electronics design, PCB layout, embedded software, machine vision, PC software and mechanical design.” Source: RevenueBase Database · checked Sep 17, 2026
20	Denholm KSW Limited	Partial evidence	Glenrothes, United KingdomHQ checked Sep 17, 2026	51-200	43 contacts →
	Partial evidence “KSW Engineering are specialists in medium to heavy precision machining and welding.” Source: RevenueBase Database · checked Sep 17, 2026
21	Eyre Group	Strong evidence	Norwich, United KingdomHQ checked Sep 17, 2026	51-200	42 contacts →
	Strong evidence “Eyre group is a foremost design led Mechanical and Electrical building services engineering business, focused on engineering solutions to meet our clients’ requirements across…” Source: RevenueBase Database · checked Sep 17, 2026
22	Hayley 247 Dexis	Strong evidence	Dudley, United KingdomHQ checked Sep 17, 2026	51-200	41 contacts →
	Strong evidence “Your Partner for Predictive, Planned, and Reactive Mechanical Engineering Services We provide a complete 24/7/365 non-stop mechanical engineering solution.” Source: RevenueBase Database · checked Sep 17, 2026
23	Projex Solutions Limited	Indirect evidence	Brighouse, United KingdomHQ checked Sep 17, 2026	11-50	36 contacts →
	Indirect evidence “Projex Solutions offers multi-disciplined teams of highly experienced and skilled engineers to help the world's most respected manufacturer's in highly regulated industries.” Source: RevenueBase Database · checked Sep 17, 2026
24	T2o Engineers	Partial evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 17, 2026	11-50	36 contacts →
	Partial evidence “t2o Engineers are a specialist Mechanical, Electrical and Public Health Consultancy with offices in the UK, UAE and the Sultanate of Oman.” Source: RevenueBase Database · checked Sep 17, 2026
25	JW Morris	Strong evidence	Bridgend, United KingdomHQ checked Sep 17, 2026	201-500	34 contacts →
	Strong evidence “JW Morris is an electrical and mechanical engineering company providing installation, manufacturing and wholesaling services to industry and commerce for domestic and…” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: mechanical engineering firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names mechanical engineering firms.
Partial evidence: Its own public description names part of mechanical engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name mechanical engineering firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,077 mechanical engineering firms based in the United Kingdom

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Mechanical engineering firms based in the United Kingdom at a glance

As of Sep 17, 2026

38.2%Verified-email coverage

7.0Average contacts per company

1-10Median size (employees)

7.3%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

724

11-50

263

51-200

201-500

501-1,000

1,001-5,000

10001+

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 1,077 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among mechanical engineering firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “mechanical engineering firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names mechanical engineering firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among mechanical engineering firms, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 2,871 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Mechanical engineering firms by metro

Mechanical engineering firms in London79

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names mechanical engineering firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many mechanical engineering firms are there based in the United Kingdom?

RevenueBase identified 1,077 mechanical engineering firms headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Hoare LEA, headquartered in London, tops this list with the largest team on record.

Which city has the most mechanical engineering firms?

London leads with 79 headquartered companies, followed by Bristol (22) and Birmingham (19).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,871 verified decision-maker contacts tracked across these 1,077 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

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