Company lists · Data refreshed September 2026

Top 25 Telecommunications consulting firms based in London, United Kingdom

Name: Telecommunications consulting firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 154 companies tracked

RevenueBase identified 154 telecommunications consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 1,701 professional contacts across them, including 796 with verified work emails and 166 with mobile numbers. London is the largest hub.

This list covers telecommunications consulting firms headquartered in London, 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 13, 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 13, 2026 86% judged on-target in blind review

154Companies

1,701Contacts tracked

796Verified emails

166Mobile numbers

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The 25 largest telecommunications consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 154 telecommunications consulting firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to telecommunications consulting 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	Analysys Mason	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	459 contacts →
	Indirect evidence “Analysys Mason is the leading specialist consultancy, creating lasting value in technology-intensive industries, including telecoms, digital infrastructure, software, IT services…” Source: RevenueBase Database · checked Sep 13, 2026
2	Cartesian	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	302 contacts →
	Strong evidence “Cartesian is a specialist consulting firm focused on the global telecommunications, media, and technology industries and is now part of Bounteous, an AI services firm helping…” Source: RevenueBase Database · checked Sep 13, 2026
3	Mobile Systems International Msiuk	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	89 contacts →
	Partial evidence “32 years of excellence in delivering consultancy, solutions, services and products in technology, telecommunications, platforms and regulatory.” Source: RevenueBase Database · checked Sep 13, 2026
4	Lloyds Ventures	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	37 contacts →
	Indirect evidence “Lloyds Ventures is the India entity to Lloyds UK, set up to expand its outreach globally in the telecom sector.” Source: RevenueBase Database · checked Sep 13, 2026
5	Commercis	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	33 contacts →
	Indirect evidence “With over three decades of experience in the communications and technology sector, Commercis has established itself as a trusted leader in delivering global connectivity…” Source: RevenueBase Database · checked Sep 13, 2026
6	The Network Collective	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	32 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 13, 2026
7	JP Reis	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	26 contacts →
	Indirect evidence “JP Reis helps financial trading organizations make better technology decisions and deliver complex transformation programs with confidence.” Source: RevenueBase Database · checked Sep 13, 2026
8	Infrastructure Design Solutions	Indirect evidence	London, United KingdomHQ checked Sep 13, 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 13, 2026
9	Aarmtech Engineering Pvt. LTD	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	23 contacts →
	Partial evidence “AARMTech is one of the pioneers in the field of Telecommunication and Security system engineering consultancy services, we are leading in the industry since its inception.” Source: RevenueBase Database · checked Sep 13, 2026
10	Cavell	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	20 contacts →
	Indirect evidence “Cavell provides strategic advice to organisations enabling the Intelligent Workplace.” Source: RevenueBase Database · checked Sep 13, 2026
11	Cortel Telecom	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	15 contacts →
	Partial evidence “Cortel is one of the UK's leading and most experienced telecommunications resellers for businesses.” Source: RevenueBase Database · checked Sep 13, 2026
12	Recenso Services	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	15 contacts →
	Indirect evidence “Our sole mission is to help you deliver successful programmes faster.” Source: RevenueBase Database · checked Sep 13, 2026
13	Konvergent	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	14 contacts →
	Indirect evidence “At Konvergent, we do two things really well: We can ensure you are making the best technology investment decisions We have the best architects, for your company Strategic…” Source: RevenueBase Database · checked Sep 13, 2026
14	Cenerva	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	13 contacts →
	Indirect evidence “Cenerva is a specialist training-driven ICT regulatory policy consultancy, helping clients worldwide to address the challenges of today’s digital economy.” Source: RevenueBase Database · checked Sep 13, 2026
15	Plum Consulting	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	12 contacts →
	Strong evidence “Based in London and Paris, we are a leading independent consulting firm, focused on the telecommunications, media, technology, and adjacent sectors.” Source: RevenueBase Database · checked Sep 13, 2026
16	Panoptic Technology	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	12 contacts →
	Partial evidence “PanOptic Technology are innovative IT & Telecom solution providers Panoptic Technology provides a range of telecommunication services to a variety of global institutions, such as…” Source: RevenueBase Database · checked Sep 13, 2026
17	Kaleido Intelligence	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	10 contacts →
	Indirect evidence “Kaleido Intelligence is a leading research and advisory firm specialising in the telecoms and financial services sectors.” Source: RevenueBase Database · checked Sep 13, 2026
18	Coleago Consulting	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	10 contacts →
	Indirect evidence “We provide advice, support and training to companies, investors and regulators in the communications sector.” Source: RevenueBase Database · checked Sep 13, 2026
19	Linx-Networks	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	9 contacts →
	Partial evidence “Linx-Networks: Driving Innovation in Trading & Telecom Solutions Linx-Networks is a leading technology and telecommunications provider headquartered in the City of London…” Source: RevenueBase Database · checked Sep 13, 2026
20	Code Technology LTD	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	8 contacts →
	Partial evidence “Code exists to challenge, rethink and refine the selection, procurement and support of mobile telecommunications services for business users.” Source: RevenueBase Database · checked Sep 13, 2026
21	Pentima	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	6 contacts →
	Partial evidence “Pentima: Your Trusted Advisor in WAN & Telecommunications, Cloud & Security Solutions Pentima is a renowned consultancy specialising in the WAN & telecommunications, Cloud &…” Source: RevenueBase Database · checked Sep 13, 2026
22	Akira Partners	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	6 contacts →
	Partial evidence “Akira Partners is an independent, privately-owned financial advisory firm specialising on the Telecommunications, Media and Technology sectors.” Source: RevenueBase Database · checked Sep 13, 2026
23	Redmill Marketing Associates	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	6 contacts →
	Partial evidence “Redmill Marketing Associates has been created to provide technology and telecommunications companies with the marketing and sales expertise required to provide sustained growth.” Source: RevenueBase Database · checked Sep 13, 2026
24	Dotvector Strategy	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	4 contacts →
	Partial evidence “Trusted advisors to small and midcap investors, and their portfolio companies, in Technology, Media and Telecommunications.” Source: RevenueBase Database · checked Sep 13, 2026
25	JTD Associates LTD	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	4 contacts →
	Partial evidence “JTD Associates is a specialist, London based firm offering experience and expertise across the gamut of telecommunications infrastructure development.” Source: RevenueBase Database · checked Sep 13, 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: telecommunications consulting 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 telecommunications consulting firms.
Partial evidence: Its own public description names part of telecommunications consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telecommunications consulting 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 154 telecommunications consulting firms based in London, United Kingdom

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Telecommunications consulting firms based in London, United Kingdom at a glance

As of Sep 13, 2026

46.8%Verified-email coverage

9.8%Mobile-number coverage

11.0Average contacts per company

1-10Median size (employees)

109.7%Largest-city concentration · London

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

100

11-50

51-200

201-500

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

6280–30

15931–60

661–90

090–180

3180+

Company record updated

Median 65.0d

00–30

71531–60

70861–90

20490–180

74180+

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 telecommunications consulting 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 London, United Kingdom whose own description of what they do matches “telecommunications consulting 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 telecommunications consulting 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 telecommunications consulting firms, and records with no verified work email. Companies headquartered outside London 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, 796 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 13, 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.

Telecommunications consulting firms by metro in the United Kingdom

Telecommunications consulting firms in London169

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 telecommunications consulting 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 telecommunications consulting firms are there based in London, United Kingdom?

RevenueBase identified 154 telecommunications consulting firms headquartered in London, 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?

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

Which city has the most telecommunications consulting firms?

London leads with 169 headquartered companies, followed by Manchester (17) and Birmingham (15).

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 796 verified decision-maker contacts tracked across these 154 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 13, 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.