Company lists · Data refreshed November 2026

Top 25 Telecom software developers based in the United Kingdom

RevenueBase identified 142 company matches for telecom software developers associated with the United Kingdom as of November 2026 and tracks 2,803 professional contacts across them, including 717 with verified work emails. London is the largest hub.

This list covers company matches for telecom software developers 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 5, 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 5, 2026 How this list was built
142Companies
2,803Contacts tracked
717Verified emails
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The 25 largest telecom software developers based in the United Kingdom

Ranked by team size
Top 25 of 142 company matches for telecom software developers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchPeterborough, United KingdomHQ recorded Nov 5, 2026501-1,000123 contacts →

Exact match

“Genesis Technology Services Limited (GTS Ltd) is a leading engineering service provider in the UK and a global multinational corporation, based in Cambridgeshire, UK.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchBelfast, United KingdomHQ recorded Nov 5, 202651-200103 contacts →

Exact match

“Barclay Communications is the leading provider of business mobile, landline and digital solutions, supporting small, medium and large organisations across the UK.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-20086 contacts →

Exact match

“Omobio (Pvt) Ltd was established in February 2011 by a team of Professional Telecom Software Developers, tendering it’s service to Telecom Operators and Telecom Service…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchHigh Wycombe, United KingdomHQ recorded Nov 5, 202651-20065 contacts →

Exact match

“Hello.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchNewbury, United KingdomHQ recorded Nov 5, 202611-5055 contacts →

Exact match

“We propel telecoms to innovate fearlessly for the last 30 years.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-20055 contacts →

Exact match

“Programus Limited boast over 15 years of experience developing the world's leading software for the Telecom and Events and Venues industries.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchKingston Upon Hull, United KingdomHQ recorded Nov 5, 202611-5054 contacts →

Exact match

“Reality Solutions Limited is an independent provider of IT, communications services and financial business software solutions to corporate enterprises, SMEs and public sector…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchCaterham, United KingdomHQ recorded Nov 5, 202611-5041 contacts →

Exact match

“Tekton Billing develops software that helps service providers simplify, automate and scale.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchMacclesfield, United KingdomHQ recorded Nov 5, 202611-5030 contacts →

Exact match

“Ghekko is an independent international company providing professional services within the Telecommunications hardware market, with operating offices in EMEA & North America.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Nov 5, 202611-5023 contacts →

Exact match

“Telecom2 is an all-in one, business to business telecommunications provider with an extensive portfolio of technology, products and services across the voice and mobile sectors.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchRedditch, United KingdomHQ recorded Nov 5, 202611-5023 contacts →

Exact match

“We are a dedicated team of individuals with over 25 years' worth of experience providing and installing business telephony systems across the UK.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchGlasgow, United KingdomHQ recorded Nov 5, 202611-5022 contacts →

Exact match

“Indigo Unified Communications makes IT easy for businesses across Scotland.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchHavant, United KingdomHQ recorded Nov 5, 2026201-50021 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchEastleigh, United KingdomHQ recorded Nov 5, 202611-5020 contacts →

Exact match

“Sirus are a provider of telecommunication products and services to business customers throughout the UK.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchNewmarket, United KingdomHQ recorded Nov 5, 202611-5017 contacts →

Exact match

“Frame Communications Ltd supplies a wide range of Telecoms Datacoms Test and Management solutions to Network Operators, Equipment Manufacturers, System Integrators, Field Support…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Nov 5, 202611-5017 contacts →

Exact match

“A hardcore IT Organisation, we have moved away from traditional office locations to ensure we are completely flexible and easily available to solve your problems as quickly as…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchFareham Whiteley, United KingdomHQ recorded Nov 5, 202611-5016 contacts →

Exact match

“The Home Of Digital Transformation.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchMargaretting, United KingdomHQ recorded Nov 5, 202611-5016 contacts →

Exact match

“We are a UK-based development company specialising in data capture and communication software solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchBolton, United KingdomHQ recorded Nov 5, 202611-5014 contacts →

Exact match

“At ClearTech Communications, we specialise in providing market-leading hardware, advanced systems, and intuitive software to build a robust and resilient communication…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchBolton, United KingdomHQ recorded Nov 5, 202651-20013 contacts →

Exact match

“Bolton based telecommunications service provider, specialising in telephone systems and maintenance, calls and lines, connectivity and mobile solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchLichfield, United KingdomHQ recorded Nov 5, 202611-5011 contacts →

Exact match

“Coview Solutions was established in 1995 when we formed partnerships with leading telecoms providers such as BT.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchNewton Abbot, United KingdomHQ recorded Nov 5, 202611-5010 contacts →

Exact match

“At Ubi we supply, install and support phone systems, mobiles, telephone lines, fibre, guest Wi-Fi and tracking and management software for businesses, hotels and schools.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-20010 contacts →

Exact match

“With over 20 years of experience, salestar continues to lead the way in delivering software solutions specifically designed for the telecom, mobile phone, and cellular industries.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchWorcester, United KingdomHQ recorded Nov 5, 202611-509 contacts →

Exact match

“At Spire we’ve never lost focus of what we deliver to our customers - a complete Team of Technology Specialists at your fingers tips, here to enhance your business.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchSheffield, United KingdomHQ recorded Nov 5, 202611-508 contacts →

Exact match

“Opus-UK offer a comprehensive range of IT software, support and telecoms services across the UK from their base in Sheffield, South Yorkshire.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 142 telecom software developers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 717 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Telecom software developers based in the United Kingdom at a glance

As of Nov 5, 2026
25.6%Verified-email coverage
19.7Average contacts per company
11-50Median size (employees)
26.1%Largest-city concentration · London
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
44
11-50
61
51-200
22
201-500
6
501-1,000
2
1,001-5,000
1
5,001-10,000
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 142 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 “telecom software developers” 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 717 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 5, 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.

Telecom software developers 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 “telecom software developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecom software developers are there based in the United Kingdom?

RevenueBase identified 142 company matches for telecom software developers 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?

Genesis Technology Services Limited tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most telecom software developers?

London leads with 37 company records, followed by Bristol (5) and Reading (3).

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 717 professional contacts with verified work emails tracked across these 142 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 142 telecom software developers based in the United Kingdom. Start with a free account, no credit card.

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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.