Company lists · Data refreshed November 2026

Top 24 Interconnection specialists based in the United Kingdom

RevenueBase identified 1,713 company matches for interconnection specialists associated with the United Kingdom as of November 2026 and tracks 30,968 professional contacts across them, including 8,981 with verified work emails. London is the largest hub.

This list covers company matches for interconnection specialists 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
1,713Companies
30,968Contacts tracked
8,981Verified emails
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The 24 largest interconnection specialists based in the United Kingdom

Ranked by team size
Top 24 of 1,713 company matches for interconnection specialists 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchWembley, United KingdomHQ recorded Nov 6, 20261,001-5,0001,204 contacts →

Exact match

“Established in 1985 to support the emerging UK cable television market, Kelly Group has diversified to meet the needs of our clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchManchester, United KingdomHQ recorded Nov 6, 20261,001-5,000571 contacts →

Exact match

“PXC is the UK’s leading wholesale provider of innovative solutions for connectivity, voice, cloud and security, underpinned by the UK’s most robust, secure, resilient and reliable…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWarrington, United KingdomHQ recorded Nov 6, 2026501-1,000555 contacts →

Exact match

“WHP is one of the UK's leading suppliers of network infrastructure services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMagor, United KingdomHQ recorded Nov 6, 2026201-500524 contacts →

Exact match

“Indigo engineers a digital future by designing, deploying, and supporting digital infrastructure for network owners and operators.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchDerby, United KingdomHQ recorded Nov 6, 2026501-1,000421 contacts →

Exact match

“Comex is an established major strategic partner of choice within the telecommunication sector, across the United Kingdom and Ireland, offering an end to end solution.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchExeter, United KingdomHQ recorded Nov 6, 2026501-1,000389 contacts →

Exact match

“Trinity’s mission statement is simple - to provide high quality design, installation, commissioning and long term after care of Fire Detection, Fire Suppression, Life Safety and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBirmingham, United KingdomHQ recorded Nov 6, 20261,001-5,000332 contacts →

Exact match

“Enerveo is a multi-disciplinary contracting business, with the skills and expertise to deliver complex projects in complex environments across a number of different service lines.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchCamberley, United KingdomHQ recorded Nov 6, 2026201-500304 contacts →

Exact match

“North builds stronger, more reliable networks and creates smarter, more sustainable places.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchReading, United KingdomHQ recorded Nov 6, 2026201-500286 contacts →

Exact match

“We're a future-ready full fibre wholesaler, offering a seamless route to the UK’s largest full fibre networks.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMiddlesbrough, United KingdomHQ recorded Nov 6, 2026201-500280 contacts →

Exact match

“Map Group (UK) is one of the leading independent providers of professional technology services to the UK communications sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSt Ives, United KingdomHQ recorded Nov 6, 2026201-500278 contacts →

Exact match

“Magdalene provides comprehensive independent solutions which address the individual needs of our customers throughout the Telecommunications Industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchManchester, United KingdomHQ recorded Nov 6, 2026201-500252 contacts →

Exact match

“Sudlows is a multi-award winning Critical Infrastructures, Enterprise Services and Facilities Management specialist which provides a full range of technical services for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchCambridge, United KingdomHQ recorded Nov 6, 2026201-500245 contacts →

Exact match

“Founded in 1985, John Henry Group is a leading, national independent integrated services provider providing best in class expertise, enabling our partner clients to deliver…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHarlow, United KingdomHQ recorded Nov 6, 2026201-500223 contacts →

Exact match

“Part of the SCCI Group, SCCI Alphatrack designs, installs, and maintains connected building systems across social housing, commercial property, new builds, and public sector…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,000203 contacts →

Exact match

“Maintel is a leading systems integrator and managed services provider, delivering effortless communications solutions to a broad spectrum of businesses in the UK and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchCoalisland, United KingdomHQ recorded Nov 6, 2026501-1,000178 contacts →

Exact match

“Viberoptix delivers frontline services to fibre networks providers across the UK and Ireland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200168 contacts →

Exact match

“Enable is a family of high-performing teams.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchSheffield, United KingdomHQ recorded Nov 6, 2026201-500164 contacts →

Exact match

“We connect people, technologies and locations, enabling service providers, OEM's and internet service providers to deploy, scale, support and maintain network infrastructure…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBolton, United KingdomHQ recorded Nov 6, 2026201-500152 contacts →

Exact match

“Aptus Utilities is a leading multi-utility connections provider delivering electric, water, gas, EV Charging and street lighting design and installation services throughout the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSheffield, United KingdomHQ recorded Nov 6, 2026201-500146 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 · Nov 6, 2026 · View company records in RevenueBase
21Exact matchCambridge, United KingdomHQ recorded Nov 6, 20261,001-5,000146 contacts →

Exact match

“Bulgin is widely recognised as a leading manufacturer of environmentally sealed connectors and components.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSnitterfield, United KingdomHQ recorded Nov 6, 2026201-500141 contacts →

Exact match

“CASS (Cabling and Splicing Services) is a services driven telecommunications specialist business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchHitchin, United KingdomHQ recorded Nov 6, 202651-200138 contacts →

Exact match

“Modern Networks helps commercial property owners and managing agents turn buildings into high-performing, tenant-ready assets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBristol, United KingdomHQ recorded Nov 6, 202651-200129 contacts →

Exact match

“Powered by People.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 24 of 1,713 interconnection specialists based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 8,981 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Interconnection specialists based in the United Kingdom at a glance

As of Nov 6, 2026
29.0%Verified-email coverage
18.1Average contacts per company
11-50Median size (employees)
10.5%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
754
11-50
650
51-200
208
201-500
38
501-1,000
12
1,001-5,000
7
5,001-10,000
3
10001+
1

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 1,713 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 “interconnection specialists” 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 8,981 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.

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

How many interconnection specialists are there based in the United Kingdom?

RevenueBase identified 1,713 company matches for interconnection specialists 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?

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

Which city has the most interconnection specialists?

London leads with 180 company records, followed by Manchester (41) and Leeds (29).

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 8,981 professional contacts with verified work emails tracked across these 1,713 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.