Company lists · Data refreshed November 2026

Top 24 Design & build engineering services based in the United Kingdom

Name: Design & build engineering services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 5,953 companies tracked

RevenueBase identified 5,953 company matches for design & build engineering services associated with the United Kingdom as of November 2026 and tracks 112,454 professional contacts across them, including 40,577 with verified work emails. London is the largest hub.

This list covers company matches for design & build engineering services 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

5,953Companies

112,454Contacts tracked

40,577Verified emails

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The 24 largest design & build engineering services based in the United Kingdom

Ranked by team size

Top 24 of 5,953 company matches for design & build engineering services 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Costain Group PLC	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	4,013 contacts →
	Exact match “Costain helps to improve people’s lives by creating connected, sustainable infrastructure that enables people and the planet thrive.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Murphy	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	3,366 contacts →
	Exact match “Murphy is a leading international, multi-disciplined engineering and construction company founded in 1951 that improves life by delivering world-class infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	SEP Engineers	Exact match	Skelmersdale, United KingdomHQ recorded Nov 6, 2026	n/a	1,855 contacts →
	Exact match “Established in 1986, SEP has been the industry’s leader for site engineering, surveying and management solutions for over thirty years, providing vital services, resources and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	ISG	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,637 contacts →
	Exact match “Who we are: At ISG, our vision is to be the world’s most dynamic construction services company, delivering places that help people and businesses thrive.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Hoare LEA	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	1,183 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 · Nov 6, 2026 · View company records in RevenueBase
6	Faithful Gould	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,172 contacts →
	Exact match “Faithful+Gould is now AtkinsRéalis.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Keltbray	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,148 contacts →
	Exact match “Keltbray is a specialist engineering-led construction group, bringing together technical know-how and practical delivery to complex projects.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	JRL Group LTD	Exact match	Borehamwood, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	901 contacts →
	Exact match “Over 25 years the JRL Group has grown from a company specialising in sub and superstructure packages to a business that offers integrated construction solutions by incorporating…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Amcogiffen	Exact match	Barnsley, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	871 contacts →
	Exact match “Who are we?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Pick Everard	Exact match	Leicester, United KingdomHQ recorded Nov 6, 2026	501-1,000	798 contacts →
	Exact match “Pick Everard is a leading multi-professional consultancy working within the property, infrastructure and construction industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Winvic Construction LTD	Exact match	Northampton, United KingdomHQ recorded Nov 6, 2026	201-500	705 contacts →
	Exact match “Formed in 2001, Winvic Construction Ltd is a leading main contractor that specialises in the design, build and fit-out of industrial, multi-room and commercial projects, and the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Bgen LTD	Exact match	Warrington, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	701 contacts →
	Exact match “We are BGEN- part of M Group.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Pd&ms Group	Exact match	Aberdeen, United KingdomHQ recorded Nov 6, 2026	501-1,000	655 contacts →
	Exact match “PD & MS Group has full multi-discipline in-house EPCC capability and is recognised as a provider of safe, effective, and cost efficient design and engineering services to onshore…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Tclarke	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	652 contacts →
	Exact match “TClarke is an industry leader in the design, installation, integration and maintenance of the digital, mechanical and electrical technologies and infrastructures that a 21st…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Crown House Technologies	Exact match	Dartford, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	650 contacts →
	Exact match “Part of the Laing O’Rourke Group, and founded on more than 200 years of experience, we are a leading construction and infrastructure technology services provider, supplying a…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	FES Group	Exact match	Stirling, United KingdomHQ recorded Nov 6, 2026	501-1,000	629 contacts →
	Exact match “The FES Group is one of the largest independent technical services companies in the UK over 60 years of experience providing building services solutions to a wide range of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	SES Engineering Services	Exact match	York, United KingdomHQ recorded Nov 6, 2026	501-1,000	625 contacts →
	Exact match “We are a trusted partner to the UK construction sector, delivering advanced engineering and technology solutions that enhance building performance on some of the UK’s most complex…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Farrans Construction	Exact match	Belfast, United KingdomHQ recorded Nov 6, 2026	501-1,000	602 contacts →
	Exact match “Farrans is a leading civil engineering and building contractor which specialises in innovative and sustainable solutions for the water, energy, aviation, transportation, marine…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Mclaughlin & Harvey LTD	Exact match	Newtownabbey, United KingdomHQ recorded Nov 6, 2026	501-1,000	591 contacts →
	Exact match “We work with our clients to shape the built environment in a sustainable and considerate way.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Vinci Building UK	Exact match	Watford, United KingdomHQ recorded Nov 6, 2026	501-1,000	588 contacts →
	Exact match “VINCI Building delivers complex projects and programmes focussing on technical excellence and experience to sustainably deliver best value for our clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Imtech	Exact match	Staines-upon-thames, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	517 contacts →
	Exact match “Imtech has rebranded to Dalkia UK.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Balfour Beatty Kilpatrick	Exact match	Glasgow, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	503 contacts →
	Exact match “As a leading mechanical & electrical engineering provider, we design, install and maintain the complex systems and technologies that underpin the UK’s national infrastructure and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Montway LTD	Exact match	Waltham Cross, United KingdomHQ recorded Nov 6, 2026	n/a	501 contacts →
	Exact match “Design & Build Construction Company” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Ardmore Group	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	495 contacts →
	Exact match “We are a privately-owned, family operated main contractor established in 1974.” 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 “design & build engineering 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 24 of 5,953 design & build engineering services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 40,577 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Design & build engineering services based in the United Kingdom at a glance

As of Nov 6, 2026

36.1%Verified-email coverage

18.9Average contacts per company

1-10Median size (employees)

15.0%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

2,971

11-50

1,942

51-200

605

201-500

501-1,000

1,001-5,000

5,001-10,000

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 5,953 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 “design & build engineering 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 40,577 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.

Design & build engineering services 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 “design & build engineering services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many design & build engineering services are there based in the United Kingdom?

RevenueBase identified 5,953 company matches for design & build engineering services 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?

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

Which city has the most design & build engineering services?

London leads with 891 company records, followed by Manchester (126) and Birmingham (96).

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 40,577 professional contacts with verified work emails tracked across these 5,953 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.