Company lists · Data refreshed November 2026

Top 15 Electromechanical services based in London, United Kingdom

Name: Electromechanical services based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 602 companies tracked

RevenueBase identified 602 company matches for electromechanical services associated with London, United Kingdom as of November 2026 and tracks 6,384 professional contacts across them, including 2,156 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for electromechanical services associated with London, 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

602Companies

6,384Contacts tracked

2,156Verified emails

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The 15 largest electromechanical services based in London, United Kingdom

Ranked by team size

Top 15 of 602 company matches for electromechanical services based in London, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Gratte Brothers Group	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	268 contacts →
	Exact match “Gratte Brothers Group is a leading independent provider of comprehensive building services, renowned for exceptional quality.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Grant Walker Engineering	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	92 contacts →
	Exact match “Grant Walker Engineering specialise in the complete installation of Electrical and Mechanical systems across all work sectors including quality office developments, commercial and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	AMD Group	Exact match	London, United KingdomHQ recorded Nov 6, 2026	11-50	87 contacts →
	Exact match “AMD Environmental are a collaborative Mechanical and Electrical Design and Build Engineering specialist with a sustainable approach in delivering challenging and bespoke projects…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Purdy Part Of Sureserve	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	85 contacts →
	Exact match “Who are we?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Maze Engineering LTD	Exact match	London, United KingdomHQ recorded Nov 6, 2026	11-50	81 contacts →
	Exact match “Maze Engineering was established in 2003 and provides refurbishment, maintenance and fit out mechanical and electrical services in the commercial, industrial, education and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Malcolm Building Services Limited	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	49 contacts →
	Exact match “Malcolm Building Services are a London based Mechanical and Electrical contractor specialising in Commercial & residential new build mixed use schemes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	PER International	Exact match	London, United KingdomHQ recorded Nov 6, 2026	11-50	46 contacts →
	Exact match “At PER International, we’re an electronics recruitment agency that understands how important it is for companies to identify, hire and nurture the best people.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	PSH	Exact match	London, United KingdomHQ recorded Nov 6, 2026	11-50	44 contacts →
	Exact match “PSH is an established, innovative Mechanical & Electrical design consultancy that is passionate about providing measurable benefits to their clients' businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	MALA	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	43 contacts →
	Exact match “MALA Engineering Limited are a Design, Installation and Maintenance provider of MEP Services based in London and the home counties.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Elmech LTD	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	43 contacts →
	Exact match “The core activities of our business are all aspects of mechanical and electrical services including air conditioning, sprinkler systems, CHW<HW, ventilation, BMS, door entry and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Redworx MEP	Exact match	London, United KingdomHQ recorded Nov 6, 2026	11-50	41 contacts →
	Exact match “About Us: Established in 2023, Redworx MEP Limited is a dynamic Mechanical and Electrical contractor aiming to make a significant impact in the London market.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Hanover Building Services	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	36 contacts →
	Exact match “Hanover is an award-winning building services provider that specialises in electrical, mechanical, plumbing, heating and renewable energy installations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	VHL Mechanical	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	33 contacts →
	Exact match “We are one of the leading plumbing, heating and electrical companies nationally, serving residential and commercial clients throughout South East England With almost three decades…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Leonari LTD	Exact match	London, United KingdomHQ recorded Nov 6, 2026	11-50	28 contacts →
	Exact match “Established in 2014, Leonari is a Mechanical & Electrical contractor working in London and the South East.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Loop Engineering	Exact match	London, United KingdomHQ recorded Nov 6, 2026	11-50	28 contacts →
	Exact match “Loop Engineering is a dynamic and expanding building services engineering consultancy based in London offering high quality, low carbon MEP design and project management services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “electromechanical services”. 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 15 of 602 electromechanical services based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 2,156 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electromechanical services based in London, United Kingdom at a glance

As of Nov 6, 2026

33.8%Verified-email coverage

10.6Average contacts per company

1-10Median size (employees)

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

341

11-50

173

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 602 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 London, United Kingdom whose business descriptions match “electromechanical services” 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 2,156 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.

Electromechanical services by metro in the United Kingdom

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 “electromechanical services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electromechanical services are there based in London, United Kingdom?

RevenueBase identified 602 company matches for electromechanical services associated with London, 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?

Gratte Brothers Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most electromechanical services?

London leads the United Kingdom with 602 company records, followed by Manchester (141) and Bristol (118).

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 2,156 professional contacts with verified work emails tracked across these 602 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.

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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.