Company lists · Data refreshed September 2026

Top 25 Enterprise telecom management firms based in the United Kingdom

Name: Enterprise telecom management firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 895 companies tracked

RevenueBase identified 895 enterprise telecom management firms headquartered in the United Kingdom as of September 2026 and tracks 16,279 professional contacts across them, including 5,726 with verified work emails. London is the largest hub.

This list covers enterprise telecom management firms headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

895Companies

16,279Contacts tracked

5,726Verified emails

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The 25 largest enterprise telecom management firms based in the United Kingdom

Ranked by team size

Top 25 of 895 enterprise telecom management firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise telecom management firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	GAMMA	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,568 contacts →
	Indirect evidence “Gamma Communications is a leading provider of technology-based communication solutions across Europe.” Source: RevenueBase Database · checked Sep 28, 2026
2	Exponential-E	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	667 contacts →
	Indirect evidence “Innovation is at the core of Exponential-e, and has been since our inception in 2002.” Source: RevenueBase Database · checked Sep 28, 2026
3	Onecom	Partial evidence	Fareham, United KingdomHQ checked Sep 28, 2026	501-1,000	655 contacts →
	Partial evidence “Onecom is the UK’s leading business telecoms and cloud communications provider managing over a million services for business customers - delivering communication services and…” Source: RevenueBase Database · checked Sep 28, 2026
4	ZEN Internet	Partial evidence	Rochdale, United KingdomHQ checked Sep 28, 2026	501-1,000	521 contacts →
	Partial evidence “Zen is a B Corp certified telecommunications and technology service provider in the UK.” Source: RevenueBase Database · checked Sep 28, 2026
5	Comex 2000	Partial evidence	Derby, United KingdomHQ checked Sep 28, 2026	501-1,000	367 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026
6	Maintel	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	341 contacts →
	Indirect evidence “Maintel is a communications managed services provider.” Source: RevenueBase Database · checked Sep 28, 2026
7	CHESS	Indirect evidence	Alderley Edge, United KingdomHQ checked Sep 28, 2026	201-500	337 contacts →
	Indirect evidence “Chess ICT is the UKs leading independent technology service provider, employing more than 240 people across the UK and supporting over customers.” Source: RevenueBase Database · checked Sep 28, 2026
8	Magdalene	Partial evidence	St Ives, United KingdomHQ checked Sep 28, 2026	201-500	273 contacts →
	Partial evidence “Magdalene provides comprehensive independent solutions which address the individual needs of our customers throughout the Telecommunications Industry.” Source: RevenueBase Database · checked Sep 28, 2026
9	A&o IT Group	Indirect evidence	Bracknell, United KingdomHQ checked Sep 28, 2026	201-500	251 contacts →
	Indirect evidence “A&O IT Group, a global leader in managed IT services, brings over 50 years of expertise and operates in over 130 countries.” Source: RevenueBase Database · checked Sep 28, 2026
10	Aerial Direct	Indirect evidence	Portsmouth, United KingdomHQ checked Sep 28, 2026	201-500	209 contacts →
	Indirect evidence “Aerial Direct are an award-winning, UK-based, managed communications expert.” Source: RevenueBase Database · checked Sep 28, 2026
11	GCI	Indirect evidence	Lincoln, United KingdomHQ checked Sep 28, 2026	501-1,000	203 contacts →
	Indirect evidence “Multi-award-winning GCI is one of the UK’s leading ICT Service Providers, with offices across the UK.” Source: RevenueBase Database · checked Sep 28, 2026
12	CROFT	Indirect evidence	Hertford, United KingdomHQ checked Sep 28, 2026	51-200	171 contacts →
	Indirect evidence “Keeping your team connected with bespoke managed service solutions.” Source: RevenueBase Database · checked Sep 28, 2026
13	Aurora Managed Services	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	162 contacts →
	Indirect evidence “Aurora Managed Services provide pro-actively managed workplace technology and support to organisations nationwide, helping them to optimise the performance and productivity of…” Source: RevenueBase Database · checked Sep 28, 2026
14	Genesis Technology Services Limited	Indirect evidence	Peterborough, United KingdomHQ checked Sep 28, 2026	501-1,000	132 contacts →
	Indirect evidence “Genesis Technology Services Limited (GTS Ltd) is a leading engineering service provider in the UK and a global multinational corporation, based in Cambridgeshire, UK.” Source: RevenueBase Database · checked Sep 28, 2026
15	Tailor Made Technologies	Partial evidence	Whiteley, United KingdomHQ checked Sep 28, 2026	51-200	123 contacts →
	Partial evidence “Tailor Made Technologies (TMT) are experts in managed IT, cyber security, and communication solutions, TMT is on a mission to help small and medium-sized enterprises leverage…” Source: RevenueBase Database · checked Sep 28, 2026
16	Radius Connect Solutions	Indirect evidence	Crewe, United KingdomHQ checked Sep 28, 2026	201-500	122 contacts →
	Indirect evidence “Radius Connect Solutions is an award-winning independent “total communications” solution provider.” Source: RevenueBase Database · checked Sep 28, 2026
17	Central Technology	Partial evidence	Chesterfield, United KingdomHQ checked Sep 28, 2026	51-200	120 contacts →
	Partial evidence “Central Technology is a trusted IT partner delivering Managed IT Support, Cloud, Cyber Security and Telecom Solutions to organisations across the UK.” Source: RevenueBase Database · checked Sep 28, 2026
18	FLR Spectron LTD	Partial evidence	Murray Road, United KingdomHQ checked Sep 28, 2026	51-200	113 contacts →
	Partial evidence “FLR Spectron is an award-winning, integrated solutions provider with over two decades of experience in the Telecoms, Mobile, Interiors, Technology, Cooling and Fire and Security…” Source: RevenueBase Database · checked Sep 28, 2026
19	Tela Technology	Indirect evidence	Hampton-in-arden, United KingdomHQ checked Sep 28, 2026	51-200	111 contacts →
	Indirect evidence “We provide communication solutions and IT business services to businesses, big and small, to help your business grow.” Source: RevenueBase Database · checked Sep 28, 2026
20	YO Telecom	Partial evidence	Southampton, United KingdomHQ checked Sep 28, 2026	51-200	97 contacts →
	Partial evidence “Yo Telecom is an award winning telecommunications provider that specialises in small to medium sized businesses.” Source: RevenueBase Database · checked Sep 28, 2026
21	Programus LTD	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	95 contacts →
	Partial evidence “Programus Limited boast over 15 years of experience developing the world's leading software for the Telecom and Events and Venues industries.” Source: RevenueBase Database · checked Sep 28, 2026
22	ICE Telecommunications Limited	Partial evidence	Crewe, United KingdomHQ checked Sep 28, 2026	51-200	89 contacts →
	Partial evidence “Ice Comms are an independent consultant which specialise in mobile, traditional landline, hosted, and broadband business telecommunication solutions.” Source: RevenueBase Database · checked Sep 28, 2026
23	Renovotec	Partial evidence	Newton-le-willows, United KingdomHQ checked Sep 28, 2026	51-200	83 contacts →
	Partial evidence “With over 25 years of industry experience, we specialise in sourcing, developing and deploying mobile enterprise solutions for a wide range of markets - including Logistics…” Source: RevenueBase Database · checked Sep 28, 2026
24	ICS Communications	Partial evidence	Camberley, United KingdomHQ checked Sep 28, 2026	11-50	75 contacts →
	Partial evidence “Contact an expert now: 0800 9 77 88 99 Specialists in providing businesses with telecoms, data and energy since 1989.” Source: RevenueBase Database · checked Sep 28, 2026
25	Rydal Group	Indirect evidence	Peterborough, United KingdomHQ checked Sep 28, 2026	51-200	74 contacts →
	Indirect evidence “Rydal Group is the brand name of Rydal Communications LTD, Rydal Security LTD & Rydal Energy LTD.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: enterprise telecom management firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names enterprise telecom management firms.
Partial evidence: Its own public description names part of enterprise telecom management firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise telecom management firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 895 enterprise telecom management firms based in the United Kingdom

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Enterprise telecom management firms based in the United Kingdom at a glance

As of Sep 28, 2026

35.2%Verified-email coverage

18.2Average contacts per company

11-50Median size (employees)

17.0%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

416

11-50

354

51-200

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 895 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among enterprise telecom management firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “enterprise telecom management firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names enterprise telecom management firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among enterprise telecom management firms, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 5,726 across the full list. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Enterprise telecom management firms by metro

Enterprise telecom management firms in London152

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names enterprise telecom management firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many enterprise telecom management firms are there based in the United Kingdom?

RevenueBase identified 895 enterprise telecom management firms headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

GAMMA, headquartered in London, tops this list with the largest team on record.

Which city has the most enterprise telecom management firms?

London leads with 152 headquartered companies, followed by Glasgow (19) and Leeds (18).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 5,726 verified decision-maker contacts tracked across these 895 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 Smart Search, 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.