Company lists · Data refreshed September 2026

Top 25 Cybersecurity digital marketing agencies based in London, United Kingdom

Name: Cybersecurity digital marketing agencies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 895 companies tracked

RevenueBase identified 895 cybersecurity digital marketing agencies headquartered in London, United Kingdom as of September 2026 and tracks 7,976 professional contacts across them, including 910 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers cybersecurity digital marketing agencies 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 29, 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 29, 2026 86% judged on-target in blind review

895Companies

7,976Contacts tracked

910Verified emails

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The 25 largest cybersecurity digital marketing agencies based in London, United Kingdom

Ranked by team size

Top 25 of 895 cybersecurity digital marketing agencies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity digital marketing agencies: 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	BIG Group	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	177 contacts →
	Partial evidence “Founded in 1991, with offices in Amsterdam, Bath, Dubai and London our award-winning employee-owned company has consistently ranked as one of the UK's leading independent digital…” Source: RevenueBase Database · checked Sep 29, 2026
2	Investis Digital	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	501-1,000	158 contacts →
	Partial evidence “IDX (formerly Investis Digital) specializes in elevating companies and brands and maximizing technology to build strong, relatable, and authentic connections with their audiences.” Source: RevenueBase Database · checked Sep 29, 2026
3	Bulletproof Cyber Security	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	123 contacts →
	Indirect evidence “Bulletproof is now part of WorkNest Secure.” Source: RevenueBase Database · checked Sep 29, 2026
4	Finixio	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	96 contacts →
	Partial evidence “Finixio is UK based remote first Marketing & SEO Agency helping clients all over the world.” Source: RevenueBase Database · checked Sep 29, 2026
5	White HAT An Epam Company	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	77 contacts →
	Indirect evidence “White Hat, part of the EPAM group, is an award-winning cyber intelligence and offensive security company that leverages an attacker’s perspective to shape innovative, proactive…” Source: RevenueBase Database · checked Sep 29, 2026
6	77agency	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	64 contacts →
	Partial evidence “We are an award-winning full-service digital agency, part of Jakala group with 1,800 employees across 16 countries around the world.” Source: RevenueBase Database · checked Sep 29, 2026
7	Hexegic	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	52 contacts →
	Indirect evidence “At Hexegic we are not just passionate about protecting data through our Cyber services we are passionate about helping companies release the potential of the data they hold…” Source: RevenueBase Database · checked Sep 29, 2026
8	Stellar Search	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	48 contacts →
	Strong evidence “We're a strategic digital marketing agency specialising in Paid Search, SEO, Google Shopping, Amazon and Social.” Source: RevenueBase Database · checked Sep 29, 2026
9	Beautiful Digital	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	44 contacts →
	Strong evidence “Beautiful Digital is a full service digital marketing agency.” Source: RevenueBase Database · checked Sep 29, 2026
10	Distinctly	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	38 contacts →
	Strong evidence “Distinctly is an independent digital marketing agency with a passion for SEO, paid media, digital PR and content.” Source: RevenueBase Database · checked Sep 29, 2026
11	Cynosure Designs	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	36 contacts →
	Strong evidence “Cynosure Designs is a UK & UAE-based IT and marketing agency providing 360° digital solutions that are experience-driven and results-focused.” Source: RevenueBase Database · checked Sep 29, 2026
12	Bluedot Agency	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	34 contacts →
	Strong evidence “A disruptive, full-service, award-winning digital marketing & advertising agency for contemporary businesses, specialising in performance marketing, content marketing…” Source: RevenueBase Database · checked Sep 29, 2026
13	Bird Marketing	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	33 contacts →
	Strong evidence “Bird UK - bird.co.uk Bird UAE - bird.ae Bird USA - bird.marketing Bird Marketing, an award-winning digital marketing agency, is a beacon of excellence in the digital landscape.” Source: RevenueBase Database · checked Sep 29, 2026
14	Torrid Networks Limited	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	32 contacts →
	Indirect evidence “Founded in 2006, Torrid Networks has been able to establish strong credentials in the area of cyber security products, research, consulting, managed services, education and staff…” Source: RevenueBase Database · checked Sep 29, 2026
15	Cyb3r	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	32 contacts →
	Indirect evidence “CYB3R Group, is a leading provider of comprehensive Cyber Security, IT and Communications Solutions.” Source: RevenueBase Database · checked Sep 29, 2026
16	Iconic Digital Marketing Consultants LTD	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	30 contacts →
	Strong evidence “Iconic Digital is a leading digital marketing agency based in London, UK.” Source: RevenueBase Database · checked Sep 29, 2026
17	Absolute Digital Media Award-Winning SEO & Digital Marketing Agency UK & Dubai	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	29 contacts →
	Indirect evidence “We help ambitious brands dominate online.” Source: RevenueBase Database · checked Sep 29, 2026
18	AXONN	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	29 contacts →
	Strong evidence “Axonn is an established Digital Marketing Agency that specialises in content creation and campaign management.” Source: RevenueBase Database · checked Sep 29, 2026
19	Prominence Marketing Specialists For Recruitment Agencies	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	29 contacts →
	Strong evidence “Prominence was founded out of the desire to help those in the recruitment sector respond to changes in consumer behaviour, namely the shift towards digital marketing and social…” Source: RevenueBase Database · checked Sep 29, 2026
20	KAU Media Group	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	27 contacts →
	Strong evidence “KAU Media Group is a full service media agency that deliver compelling digital marketing solutions.” Source: RevenueBase Database · checked Sep 29, 2026
21	Encode	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	25 contacts →
	Indirect evidence “Encode is now part of Obrela Security Industries collectively delivering cutting edge Cyber Security Services, empowering organizations to better protect against cyber threats.” Source: RevenueBase Database · checked Sep 29, 2026
22	Toro Solutions	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	23 contacts →
	Indirect evidence “Toro was founded on creating the UK's first Red Team penetration test - and then attacking hundreds of clients by hacking their systems, influencing / social engineering staff and…” Source: RevenueBase Database · checked Sep 29, 2026
23	UWP Group	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	22 contacts →
	Strong evidence “No BS digital marketing.” Source: RevenueBase Database · checked Sep 29, 2026
24	CYPRO	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	21 contacts →
	Indirect evidence “Secure.” Source: RevenueBase Database · checked Sep 29, 2026
25	Secure Purple	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	20 contacts →
	Partial evidence “Secure Purple is a leading cyber security and digital safety firm that provides innovative solutions and services to help organisations and individuals stay protected in the…” Source: RevenueBase Database · checked Sep 29, 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: cybersecurity digital marketing agencies. 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 cybersecurity digital marketing agencies.
Partial evidence: Its own public description names part of cybersecurity digital marketing agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity digital marketing agencies. 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 cybersecurity digital marketing agencies based in London, United Kingdom

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Cybersecurity digital marketing agencies based in London, United Kingdom at a glance

As of Sep 29, 2026

11.4%Verified-email coverage

8.9Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

572

11-50

262

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, 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 cybersecurity digital marketing agencies, 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 “cybersecurity digital marketing agencies”. 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 cybersecurity digital marketing agencies), 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 cybersecurity digital marketing agencies, 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, 910 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 29, 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.

Cybersecurity digital marketing agencies by metro in the United Kingdom

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 cybersecurity digital marketing agencies, 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 cybersecurity digital marketing agencies are there based in London, United Kingdom?

RevenueBase identified 895 cybersecurity digital marketing agencies 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?

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

Which city in the United Kingdom has the most cybersecurity digital marketing agencies?

London leads the United Kingdom with 895 headquartered companies, followed by Manchester (106) and Birmingham (85).

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 910 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 29, 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.