Company lists · Data refreshed September 2026

Top 25 Underground infrastructure companies based in the United Kingdom

RevenueBase identified 405 company matches for underground infrastructure companies associated with the United Kingdom as of September 2026 and tracks 13,905 professional contacts across them, including 5,085 with verified work emails. London is the largest hub.

This list covers company matches for underground infrastructure 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 September 22, 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 22, 2026 How this list was built
405Companies
13,905Contacts tracked
5,085Verified emails
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The 25 largest underground infrastructure companies based in the United Kingdom

Ranked by team size
Top 25 of 405 company matches for underground infrastructure companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 matchLondon, United KingdomHQ recorded Sep 22, 20261,001-5,0003,095 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 · Sep 22, 2026 · View company records in RevenueBase
2Exact matchHarefield, United KingdomHQ recorded Sep 22, 20261,001-5,0001,218 contacts →

Exact match

“The Clancy Group was founded in 1958 by Michael Clancy as M.J.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchStevenage, United KingdomHQ recorded Sep 22, 202610001+851 contacts →

Exact match

“M Group | Essential Infrastructure Services for Life It’s an exceptional time to be part of M Group.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchWalsall, United KingdomHQ recorded Sep 22, 20261,001-5,000803 contacts →

Exact match

“Barhale was formed in 1980 as a specialist tunnelling contractor and grew initially through the successful delivery of projects in the water sector, developing mechanical and…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchWarrington, United KingdomHQ recorded Sep 22, 20261,001-5,000644 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchWoolpit, United KingdomHQ recorded Sep 22, 2026201-500509 contacts →

Exact match

“GTC is the market leading independent utility infrastructure provider to: • National & regional house builders and developers.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchStanford-le-hope, United KingdomHQ recorded Sep 22, 2026501-1,000487 contacts →

Exact match

“Joseph Gallagher is one of the UK's leading Civil Engineering & Tunnelling sub-contractors that has significantly grown over the past 45 years into an international business.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchChorley, United KingdomHQ recorded Sep 22, 2026501-1,000440 contacts →

Exact match

“Transforming utilities for communities We are an expert, responsible and agile partner, providing vital services to the UK’s utilities networks.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchBamber Bridge, United KingdomHQ recorded Sep 22, 20261,001-5,000324 contacts →

Exact match

“Sapphire Utility Solutions has quickly become a trusted name in the utility, transport and highways sectors, known for our capabilities in delivering innovative solutions to meet…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchBasildon, United KingdomHQ recorded Sep 22, 202651-200275 contacts →

Exact match

“Tunnelcraft Ltd is currently working for the BAM Nuttall.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchCoventry, United KingdomHQ recorded Sep 22, 2026201-500249 contacts →

Exact match

“All Utilities.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchLurgan, United KingdomHQ recorded Sep 22, 2026501-1,000218 contacts →

Exact match

“Cubis Systems offers a faster, greener, and more efficient way to build underground infrastructure.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchWest Farleigh, United KingdomHQ recorded Sep 22, 2026501-1,000147 contacts →

Exact match

“Ferns is one of the largest independent utility infrastructure services providers in the south of the UK.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchSheffield, United KingdomHQ recorded Sep 22, 2026201-500145 contacts →

Exact match

“Fulcrum is a leading ICP (Independent Connection Provider) designing and building electricity, gas and water connections and infrastructure for all sizes of residential…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchRochdale, United KingdomHQ recorded Sep 22, 2026501-1,000141 contacts →

Exact match

“P.N.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchBrierley Hill, United KingdomHQ recorded Sep 22, 2026201-500137 contacts →

Exact match

“S&R Construction was founded in 1998 with a view to providing affordable, sustainable gas, water and electric mains and utility installation services for a broad range of clients.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchCardiff Road, United KingdomHQ recorded Sep 22, 2026201-500136 contacts →

Exact match

“We’re envolve, specialist civil engineers.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 22, 2026501-1,000114 contacts →

Exact match

“SQS is a leading utility solutions provider serving the energy, gas, water, local authority and commercial sectors in London and the South East from our head office in North…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchTipton, United KingdomHQ recorded Sep 22, 2026201-500105 contacts →

Exact match

“Doocey Group Utility Infrastructure Contractor operating nationally in the construction Industry.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchHemel Hempstead, United KingdomHQ recorded Sep 22, 2026201-50085 contacts →

Exact match

“Southern England’s leading multi-utility contractor”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchWimborne, United KingdomHQ recorded Sep 22, 2026201-50082 contacts →

Exact match

“JDT Utilities Ltd is a medium sized utility company that specialises in gas mains & domestic services replacement, repair, refurbishment and maintenance.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchKettering, United KingdomHQ recorded Sep 22, 202651-20076 contacts →

Exact match

“Infrastructure Gateway Ltd have been working with developers providing them with the expertise to deliver the utilities on construction projects for over 20 years.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchGlasgow, United KingdomHQ recorded Sep 22, 202651-20066 contacts →

Exact match

“We are an independent adopter of utility assets on behalf of our licensed operators Last Mile Electricity Ltd and Last Mile Gas Ltd.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchCardiff, United KingdomHQ recorded Sep 22, 202651-20063 contacts →

Exact match

“We understand that there are a myriad of different options and avenues available when it comes to finding the best utility infrastructure solution for your development.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchClayton West, United KingdomHQ recorded Sep 22, 202651-20063 contacts →

Exact match

“AUS is a specialist supplier to the electricity distribution and transmission, rail, utility arboricultural, and telecommunications industries.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 405 underground infrastructure companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 5,085 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Underground infrastructure companies based in the United Kingdom at a glance

As of Sep 22, 2026
36.6%Verified-email coverage
34.3Average contacts per company
11-50Median size (employees)
6.2%Largest-city concentration · London
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
127
11-50
158
51-200
76
201-500
20
501-1,000
11
1,001-5,000
7
5,001-10,000
1
10001+
2

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 405 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 “underground infrastructure 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 5,085 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 22, 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 “underground infrastructure companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many underground infrastructure companies are there based in the United Kingdom?

RevenueBase identified 405 company matches for underground infrastructure companies 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?

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

Which city has the most underground infrastructure companies?

London leads with 25 company records, followed by Manchester (18) and Warrington (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 5,085 professional contacts with verified work emails tracked across these 405 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 22, 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.