Company lists · Data refreshed September 2026

Top 25 Telecom marketing consultants based in London, United Kingdom

Name: Telecom marketing consultants 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 345 companies tracked

RevenueBase identified 345 telecom marketing consultants headquartered in London, United Kingdom as of September 2026 and tracks 2,047 professional contacts across them, including 654 with verified work emails and 211 with mobile numbers. London is the largest hub.

This list covers telecom marketing consultants 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

345Companies

2,047Contacts tracked

654Verified emails

211Mobile numbers

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The 25 largest telecom marketing consultants based in London, United Kingdom

Ranked by team size

Top 25 of 345 telecom marketing consultants 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 telecom marketing consultants: 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	Cartesian	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	302 contacts →
	Partial 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
2	SOH	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	96 contacts →
	Indirect evidence “We’re service communication experts – using a mix of science, creativity and service know-how to improve how you talk with your customers through all channels and media, from…” Source: RevenueBase Database · checked Sep 13, 2026
3	Speedflow	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	79 contacts →
	Indirect evidence “With a broad experience in the industry, Speedflow is in the best position to provide you with products and services proven by time to be effective.” Source: RevenueBase Database · checked Sep 13, 2026
4	Tamooz Marketing Communications	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	60 contacts →
	Indirect evidence “OUR PEOPLE Our team brings a powerful blend of strategic minds and creative souls, delivering targeted solutions that capture your audiences’ hearts and heads.” Source: RevenueBase Database · checked Sep 13, 2026
5	Xlr8	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	59 contacts →
	Indirect evidence “Consult us for.” Source: RevenueBase Database · checked Sep 13, 2026
6	MUSE	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	47 contacts →
	Strong evidence “MUSE is a full-service marketing and communications consultancy, with expertise in brand strategy, marketing, communication, design, public relations, digital, publishing and…” Source: RevenueBase Database · checked Sep 13, 2026
7	Acquisition INC	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	34 contacts →
	Partial evidence “Customer Acquisition seems to be the end goal of so much global marketing spend, yet the complexity of all the moving parts is often overlooked.” Source: RevenueBase Database · checked Sep 13, 2026
8	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
9	TQ Branding	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	26 contacts →
	Strong evidence “We work with international clients in the telecoms, broadcasting and corporate sectors who need robust marketing and branding strategy alongside effective brand identity.” Source: RevenueBase Database · checked Sep 13, 2026
10	RCR Partnership	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	24 contacts →
	Partial evidence “We help you work out what marketing and business development you should be doing (the strategy) AND how to get it done (the implementation).” Source: RevenueBase Database · checked Sep 13, 2026
11	Streets Consulting	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	22 contacts →
	Strong evidence “Streets Consulting Ltd is a business development, marketing and communications consultancy supporting international financial services, technology and fast-growth companies.” Source: RevenueBase Database · checked Sep 13, 2026
12	SG Strategy	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	21 contacts →
	Indirect evidence “At SPACE GLOBAL STRATEGY, we understand your space.” Source: RevenueBase Database · checked Sep 13, 2026
13	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
14	Resonance	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	19 contacts →
	Partial evidence “In 2011, Resonance was born from the desire to seamlessly link PR, marketing and the sales funnel together.” Source: RevenueBase Database · checked Sep 13, 2026
15	Woolfhodson LTD	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	18 contacts →
	Partial evidence “At WoolfHodson we are united by a shared passion to improve marketing performance.” Source: RevenueBase Database · checked Sep 13, 2026
16	Platform Communications	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	18 contacts →
	Indirect evidence “Propel Your Business Own the narrative, elevate your brand and drive sales success with our complete comms offering based on decades of industry experience.” Source: RevenueBase Database · checked Sep 13, 2026
17	Seraph Science	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	12 contacts →
	Partial evidence “Seraph Science is a specialist in c-suite marketing.” Source: RevenueBase Database · checked Sep 13, 2026
18	Plum Consulting	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	12 contacts →
	Partial 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
19	The Observatory International	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	11 contacts →
	Partial evidence “Today more than ever marketers need to drive greater efficiencies and demonstrate both tangible improvements in Marketing RoI, and a strategic contribution to business growth.” Source: RevenueBase Database · checked Sep 13, 2026
20	Kaleido Intelligence	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	10 contacts →
	Partial 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
21	TKM Consultants	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	9 contacts →
	Partial evidence “We commercialise your growth strategy, through marketing led growth.” Source: RevenueBase Database · checked Sep 13, 2026
22	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
23	Metacortx	Strong evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	8 contacts →
	Strong evidence “MetacortX is a strategic marketing consultancy built for ambitious businesses that need marketing expertise without the overhead of a full internal team.” Source: RevenueBase Database · checked Sep 13, 2026
24	Fractional Teams	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	8 contacts →
	Partial evidence “Fractional Teams is a Product and Digital Marketing services company.” Source: RevenueBase Database · checked Sep 13, 2026
25	Sales Excellence Advisors LTD	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	7 contacts →
	Indirect evidence “At Sales Excellence Advisors, we help businesses navigate the unpredictable waves of today’s business landscape.” 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: telecom marketing consultants. 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 telecom marketing consultants.
Partial evidence: Its own public description names part of telecom marketing consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telecom marketing consultants. 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 345 telecom marketing consultants based in London, United Kingdom

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Telecom marketing consultants based in London, United Kingdom at a glance

As of Sep 13, 2026

31.9%Verified-email coverage

10.3%Mobile-number coverage

5.9Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

290

11-50

51-200

201-500

1,001-5,000

Freshness & accuracy

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

Email last verified

Median 15.0d

5160–30

13531–60

261–90

090–180

1180+

Company record updated

Median 76.0d

00–30

76531–60

92861–90

26390–180

91180+

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 telecom marketing consultants, 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 “telecom marketing consultants”. 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 telecom marketing consultants), 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 telecom marketing consultants, 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, 654 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.

Telecom marketing consultants by metro in the United Kingdom

Telecom marketing consultants in London345
Telecom marketing consultants in Manchester26

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 telecom marketing consultants, 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 telecom marketing consultants are there based in London, United Kingdom?

RevenueBase identified 345 telecom marketing consultants 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?

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

Which city has the most telecom marketing consultants?

London leads with 345 headquartered companies, followed by Manchester (26) and Edinburgh (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 654 verified decision-maker contacts tracked across these 345 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.