Company lists · Data refreshed September 2026

Top 25 Mep engineering firms based in the United Kingdom

Name: Mep 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 1,362 companies tracked

RevenueBase identified 1,362 company matches for mep engineering firms associated with the United Kingdom as of September 2026 and tracks 19,311 professional contacts across them, including 8,459 with verified work emails. London is the largest hub.

This list covers company matches for mep engineering firms 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 17, 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 Sep 17, 2026 How this list was built

1,362Companies

19,311Contacts tracked

8,459Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest mep engineering firms based in the United Kingdom

Ranked by team size

Top 25 of 1,362 company matches for mep engineering firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Hoare LEA	Exact match	London, United KingdomHQ recorded Sep 17, 2026	501-1,000	1,103 contacts →
	Exact match “We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Black & White Engineering	Exact match	Newcastle Upon Tyne, United KingdomHQ recorded Sep 17, 2026	1,001-5,000	888 contacts →
	Exact match “Black & White Engineering is a global, award-winning critical buildings and infrastructure engineering consultancy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	SES Engineering Services	Exact match	York, United KingdomHQ recorded Sep 17, 2026	501-1,000	597 contacts →
	Exact match “SES Engineering Services boasts a rich 65-year history delivering engineering excellence in the UK.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	VVB Engineering	Exact match	London, United KingdomHQ recorded Sep 17, 2026	201-500	336 contacts →
	Exact match “At VVB, we deliver mechanical, electrical, telecommunication, temporaries and fire engineering expertise and services for large-scale infrastructure projects.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	JCA Engineering	Exact match	Stevenage, United KingdomHQ recorded Sep 17, 2026	201-500	237 contacts →
	Exact match “JCA is a multi-faceted engineering services and construction business.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	ESG	Exact match	Romford, United KingdomHQ recorded Sep 17, 2026	201-500	236 contacts →
	Exact match “Essex Services Group (ESG) is a multi-disciplined MEP company founded in 1975, beginning as an electrical services contractor.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Actemium UK	Exact match	Birmingham, United KingdomHQ recorded Sep 17, 2026	501-1,000	190 contacts →
	Exact match “At Actemium UK, we are expert electrical, automation and mechanical engineers delivering bespoke engineering solutions across industry, infrastructure and beyond.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Z-Tech Control Systems LTD	Exact match	Swavesey, United KingdomHQ recorded Sep 17, 2026	201-500	156 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	JCK Limited	Exact match	Colnbrook, United KingdomHQ recorded Sep 17, 2026	201-500	155 contacts →
	Exact match “Established in 2003, JCK has successfully and consistently been delivering excellent service to clients in our areas of specialism: Mechanical, Electrical & Public Health Building…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Harley Haddow	Exact match	Edinburgh, United KingdomHQ recorded Sep 17, 2026	51-200	146 contacts →
	Exact match “Harley Haddow are Civil, Structural, Mechanical, Electrical, Building Performance & Sustainability and Geotechnical Consulting Engineers.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	MCS	Exact match	Bristol, United KingdomHQ recorded Sep 17, 2026	51-200	138 contacts →
	Exact match “MCS Ltd are specialist building services engineers covering all aspects of commercial and industrial building services and infrastructure engineering across varying market sectors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Wintech	Exact match	Wolverhampton, United KingdomHQ recorded Sep 17, 2026	51-200	127 contacts →
	Exact match “Wintech are a building engineering consultancy service with a strong design heritage, working on projects ranging from new build, sustainable developments to complex building…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Cilantro Engineering UK Limited	Exact match	London, United KingdomHQ recorded Sep 17, 2026	201-500	123 contacts →
	Exact match “Cilantro Engineering is a multi-discipline Building Services Contractor offering a vast range of Mechanical and Electrical Design & Installation services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Wallace Whittle	Exact match	Glasgow, United KingdomHQ recorded Sep 17, 2026	51-200	121 contacts →
	Exact match “WWe are a leading MEP & Sustainability engineering consultancy, committed to driving responsible and sustainable solutions in the built environment.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Watkins	Exact match	Ramsgate, United KingdomHQ recorded Sep 17, 2026	51-200	118 contacts →
	Exact match “For over 60 years, Watkins has been a leading provider of Mechanical, Electrical and Plumbing services in London and SE England.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	LJJ LTD	Exact match	Stockton On Tees, United KingdomHQ recorded Sep 17, 2026	201-500	114 contacts →
	Exact match “LJJ formed in 2001 as a private limited company and is a multi-disciplined organisation capable of completing major mechanical, electrical and public health service contracts in a…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Brookbanks	Exact match	United KingdomHQ recorded Sep 17, 2026	51-200	113 contacts →
	Exact match “Project Consultant & Development Partner: Civil, Structural, Mechanical & Electrical Engineering Designs; Highways, Transportation & Environmental; Cost & Commercial & Development…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	East West Connect LTD	Exact match	Perivale, United KingdomHQ recorded Sep 17, 2026	201-500	111 contacts →
	Exact match “Founded in 1988, we are a family-owned business of passionate engineers who specialise in building services-driven construction projects, undertaking all major works in-house.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Stothers M&e LTD	Exact match	Belfast, United KingdomHQ recorded Sep 17, 2026	51-200	109 contacts →
	Exact match “Founded in 1957, Stothers (M&E) Ltd is a national market leader in the provision of Mechanical and Electrical Building Services and Contract Maintenance.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Alan Wood & Partners	Exact match	Hull, United KingdomHQ recorded Sep 17, 2026	51-200	106 contacts →
	Exact match “Established in 1968 as a firm of Consulting Civil & Structural Engineers Alan Wood & Partners now have 7 offices in the UK.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	JCW Energy Services LTD	Exact match	Melbourn, United KingdomHQ recorded Sep 17, 2026	201-500	103 contacts →
	Exact match “JCW Energy Services is a privately held SME business operating in the building services engineering sector throughout the UK.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Woodford	Exact match	Loughton, United KingdomHQ recorded Sep 17, 2026	51-200	99 contacts →
	Exact match “Woodford specialise in mechanical and electrical building services for the construction market.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Hulley And Kirkwood	Exact match	Glasgow, United KingdomHQ recorded Sep 17, 2026	51-200	98 contacts →
	Exact match “We are an independent Building Services Consultancy providing national coverage.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Castle	Exact match	Hebburn, United KingdomHQ recorded Sep 17, 2026	201-500	97 contacts →
	Exact match “Castle offer design services, Principal Contracting, MEP Subcontracting, new builds, fit-outs and refurbs.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	SOWGA	Exact match	Pulborough, United KingdomHQ recorded Sep 17, 2026	51-200	95 contacts →
	Exact match “With over 40 years of experience in building services engineering, Sowga, a Pareto company, is a trusted provider of mechanical and electrical engineering, maintenance, and…” Recorded in the RevenueBase company graph · Sep 17, 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 “mep engineering firms”. 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 1,362 mep engineering firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 8,459 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Mep engineering firms based in the United Kingdom at a glance

As of Sep 17, 2026

43.8%Verified-email coverage

14.2Average contacts per company

11-50Median size (employees)

14.8%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

622

11-50

527

51-200

162

201-500

501-1,000

1,001-5,000

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 1,362 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 “mep engineering firms” 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 8,459 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 17, 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.

Mep engineering firms by metro

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 “mep engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 1,362 company matches for mep engineering firms 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?

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

Which city has the most mep engineering firms?

London leads with 201 company records, followed by Manchester (32) and Bristol (28).

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 8,459 professional contacts with verified work emails tracked across these 1,362 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 17, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,362 mep engineering firms based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Mep engineering firms by geography

Browse the directory

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.