Company lists · Data refreshed September 2026

Top 25 Enterprise connectivity advisors based in the United Kingdom

Name: Enterprise connectivity advisors 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 358 companies tracked

RevenueBase identified 358 enterprise connectivity advisors headquartered in the United Kingdom as of September 2026 and tracks 5,764 professional contacts across them, including 2,495 with verified work emails. London is the largest hub.

This list covers enterprise connectivity advisors 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

358Companies

5,764Contacts tracked

2,495Verified emails

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The 25 largest enterprise connectivity advisors based in the United Kingdom

Ranked by team size

Top 25 of 358 enterprise connectivity advisors 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 connectivity advisors: 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	Kelly Group	Indirect evidence	Wembley, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,053 contacts →
	Indirect evidence “Established in 1985 to support the emerging UK cable television market, Kelly Group has diversified to meet the needs of our clients.” Source: RevenueBase Database · checked Sep 28, 2026
2	Nasstar	Indirect evidence	Wakefield, United KingdomHQ checked Sep 28, 2026	1,001-5,000	844 contacts →
	Indirect evidence “Complexity isn’t the enemy.” Source: RevenueBase Database · checked Sep 28, 2026
3	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
4	Zenzero	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	401 contacts →
	Indirect evidence “We believe successful businesses are underpinned by quality IT infrastructure.” Source: RevenueBase Database · checked Sep 28, 2026
5	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
6	Charterhouse Group	Indirect evidence	Aldgate, United KingdomHQ checked Sep 28, 2026	51-200	163 contacts →
	Indirect evidence “Connecting You Across the UK and Worldwide Our team of accredited engineers and consultants cover a broad range of technologies, enabling us to deliver innovative solutions.” Source: RevenueBase Database · checked Sep 28, 2026
7	Linbrooke Services LTD	Indirect evidence	Sheffield, United KingdomHQ checked Sep 28, 2026	201-500	89 contacts →
	Indirect evidence “We connect people, technologies and locations, enabling service providers, OEM's and internet service providers to deploy, scale, support and maintain network infrastructure…” Source: RevenueBase Database · checked Sep 28, 2026
8	ISG Tech	Strong evidence	Nelson, United KingdomHQ checked Sep 28, 2026	201-500	76 contacts →
	Strong evidence “ISG Tech is a market-leading provider of services for the design, deployment and management of enterprise network connectivity with over 35 years of experience.” Source: RevenueBase Database · checked Sep 28, 2026
9	Excalibur Communications	Indirect evidence	Swindon, United KingdomHQ checked Sep 28, 2026	51-200	72 contacts →
	Indirect evidence “Excalibur provides an end to end business consulting service that offers reliable insight, and expertise in communications and technology.” Source: RevenueBase Database · checked Sep 28, 2026
10	Sytel Reply	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	68 contacts →
	Indirect evidence “Sytel Reply is the Reply Company focused on Networks and Security.” Source: RevenueBase Database · checked Sep 28, 2026
11	MMX	Indirect evidence	Solihull, United KingdomHQ checked Sep 28, 2026	51-200	54 contacts →
	Indirect evidence “Here at MMX (part of the TXO group), we're experts in providing communication network design, build & support services.” Source: RevenueBase Database · checked Sep 28, 2026
12	MLR Networks LTD	Partial evidence	Runcorn, United KingdomHQ checked Sep 28, 2026	11-50	53 contacts →
	Partial evidence “We are an IT network infrastructure managed services provider delivering enterprise networking, wireless networks, structured cabling and security solutions to customers across…” Source: RevenueBase Database · checked Sep 28, 2026
13	Kinetic IT LTD	Indirect evidence	Erith, United KingdomHQ checked Sep 28, 2026	11-50	47 contacts →
	Indirect evidence “It’s all about making a difference The world of IT is an ever-evolving industry with new developments in technology emerging constantly.” Source: RevenueBase Database · checked Sep 28, 2026
14	Updata Infrastructure	Partial evidence	Reigate, United KingdomHQ checked Sep 28, 2026	501-1,000	42 contacts →
	Partial evidence “Updata Infrastructure part of Capita plc, is a pioneering connectivity services integrator.” Source: RevenueBase Database · checked Sep 28, 2026
15	Select Technology	Indirect evidence	Paddock Wood, United KingdomHQ checked Sep 28, 2026	11-50	40 contacts →
	Indirect evidence “Select Technology is one of the South East’s leading technology service providers, with 30 years of expertise in designing, implementing and supporting IT networks of all sizes.” Source: RevenueBase Database · checked Sep 28, 2026
16	Datel Group LTD	Indirect evidence	Weston-super-mare, United KingdomHQ checked Sep 28, 2026	51-200	39 contacts →
	Indirect evidence “Structured Cabling and Network Solutions that Power Your Progress” Source: RevenueBase Database · checked Sep 28, 2026
17	Lan2lan	Indirect evidence	Leatherhead, United KingdomHQ checked Sep 28, 2026	11-50	39 contacts →
	Indirect evidence “LAN2LAN is a specialist systems integration, installation and project management organisation focused on driving technologically innovative solutions that deliver intelligent…” Source: RevenueBase Database · checked Sep 28, 2026
18	Excel IT	Partial evidence	Grays, United KingdomHQ checked Sep 28, 2026	201-500	35 contacts →
	Partial evidence “Excel builds, supports and optimises the IT infrastructure, networks and connectivity which drive global business performance.” Source: RevenueBase Database · checked Sep 28, 2026
19	Delteq LTD	Indirect evidence	Epsom, United KingdomHQ checked Sep 28, 2026	51-200	34 contacts →
	Indirect evidence “DELTEQ Ltd is a leading company in the telecommunications and infrastructure industry.” Source: RevenueBase Database · checked Sep 28, 2026
20	Infrastructure Design Solutions	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “IDS is a global ICT and security infrastructure design consultancy, specialized in structured cabling design and physical security engineering solutions that meet the highest…” Source: RevenueBase Database · checked Sep 28, 2026
21	BIT Solutions	Partial evidence	Much Hadham, United KingdomHQ checked Sep 28, 2026	11-50	22 contacts →
	Partial evidence “Bit Solutions is founded on the philosophy of providing innovative enterprise IT consultancy and solutions that are aligned to our clients’ business requirements.” Source: RevenueBase Database · checked Sep 28, 2026
22	ATOM	Indirect evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect evidence “At atom.” Source: RevenueBase Database · checked Sep 28, 2026
23	Intouch Systems	Indirect evidence	Norwich, United KingdomHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect evidence “InTouch Systems is a Norfolk based company specialising in providing managed technology solutions, a diverse range of internet services as an innovative internet service provider…” Source: RevenueBase Database · checked Sep 28, 2026
24	IKM Network Communications LTD	Indirect evidence	Hook, United KingdomHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect evidence “IKM Network Communications is a leading provider of cutting-edge IP network infrastructure systems.” Source: RevenueBase Database · checked Sep 28, 2026
25	Farrpoint	Partial evidence	Edinburgh, United KingdomHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “We are a team of independent advisers providing guidance on a range of enabling technologies, variously described as digital connectivity, network infrastructure, telecoms, and…” 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 connectivity advisors. 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 connectivity advisors.
Partial evidence: Its own public description names part of enterprise connectivity advisors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise connectivity advisors. 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 358 enterprise connectivity advisors based in the United Kingdom

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Enterprise connectivity advisors based in the United Kingdom at a glance

As of Sep 28, 2026

43.3%Verified-email coverage

16.1Average contacts per company

1-10Median size (employees)

26.8%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

219

11-50

103

51-200

201-500

501-1,000

1,001-5,000

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 358 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 connectivity advisors, 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 connectivity advisors”. 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 connectivity advisors), 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 connectivity advisors, 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, 2,495 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 connectivity advisors by metro

Enterprise connectivity advisors in London96

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 connectivity advisors, 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 connectivity advisors are there based in the United Kingdom?

RevenueBase identified 358 enterprise connectivity advisors 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?

Kelly Group, headquartered in Wembley, tops this list with the largest team on record.

Which city has the most enterprise connectivity advisors?

London leads with 96 headquartered companies, followed by Manchester (8) and Birmingham (6).

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 2,495 verified decision-maker contacts tracked across these 358 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.