Company lists · Data refreshed November 2026

Top 13 Backbone network operators based in the United Kingdom

RevenueBase identified 26 company matches for backbone network operators associated with the United Kingdom as of November 2026 and tracks 1,575 professional contacts across them, including 690 with verified work emails. London is the largest hub.

This list covers company matches for backbone network operators 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
26Companies
1,575Contacts tracked
690Verified emails
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The 13 largest backbone network operators based in the United Kingdom

Ranked by team size
Top 13 of 26 company matches for backbone network operators 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 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
2Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500385 contacts →

Exact match

“euNetworks (@euNetworks) is a European provider of bandwidth infrastructure services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,000321 contacts →

Exact match

“Interoute is part of EXA Infrastructure, the largest dedicated digital infrastructure platform connecting Europe and North America, and owns kilometres of fibre network across 34…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchPortsmouth, United KingdomHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“We focus on the quality of our service, infrastructure, and most importantly, the support of our customers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“IP River is a UK wholesale ISP and network operator with global reach, the access layer behind the partners who sell connectivity.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCorby, United KingdomHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Rocket Fibre delivers high-performance, carrier-grade connectivity solutions across the UK and Europe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchTelford Shropshire, United KingdomHQ recorded Nov 6, 202651-20011 contacts →

Exact match

“At CityFibre, we’re building a new, intelligent, open-access fibre network, purpose built for the data age.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchTelford, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“We’re an international Internet Service provider connecting homes, businesses, ISPs and Wholesale.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchHamra, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Spactron is a leading Global Provider of International Wholesale Voice Carrier Services offering international voice interconnections, value-added telecom solutions and a complete…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLeeds, United KingdomHQ recorded Nov 6, 202611-503 contacts →

Exact match

“Metro Technologies, power and connectivity for the North's digital future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Nov 6, 202611-503 contacts →

Exact match

“Wildcard Networks, a top hosting and interconnectivity provider situated in Newcastle upon Tyne, has experienced remarkable growth.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-503 contacts →

Exact match

“Volta is extremely well-connected, with 11 Tier I carriers boasting direct fibre, and a host of Tier II carriers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchEdinburgh, United KingdomHQ recorded Nov 6, 202651-2002 contacts →

Exact match

Recorded description not available.

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

Showing 13 of 26 backbone network operators based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 690 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Backbone network operators based in the United Kingdom at a glance

As of Nov 6, 2026
43.8%Verified-email coverage
60.6Average contacts per company
11-50Median size (employees)
46.2%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
2
11-50
16
51-200
3
201-500
1
501-1,000
2
1,001-5,000
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 26 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 “backbone network operators” 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 690 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 “backbone network operators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many backbone network operators are there based in the United Kingdom?

RevenueBase identified 26 company matches for backbone network operators 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?

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

Which city has the most backbone network operators?

London leads with 12 company records, followed by Edinburgh (2) and Leeds (2).

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 690 professional contacts with verified work emails tracked across these 26 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.