Company lists · Data refreshed September 2026

Top 25 Cybersecurity digital marketing agencies based in the United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 2,741 companies tracked

RevenueBase identified 2,741 company matches for cybersecurity digital marketing agencies associated with the United Kingdom as of September 2026 and tracks 17,200 professional contacts across them, including 4,006 with verified work emails and 1,469 with mobile numbers. London is the largest hub.

This list covers company matches for cybersecurity digital marketing agencies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built

2,741Companies

17,200Contacts tracked

4,006Verified emails

1,469Mobile numbers

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The 25 largest cybersecurity digital marketing agencies based in the United Kingdom

Ranked by team size

Top 25 of 2,741 company matches for cybersecurity digital marketing agencies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Securityhq	Exact match	London, United KingdomHQ recorded Sep 29, 2026	501-1,000	502 contacts →
	Exact match “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	BIG Group	Exact match	London, United KingdomHQ recorded Sep 29, 2026	51-200	177 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Cyberfort	Exact match	Thatcham, United KingdomHQ recorded Sep 29, 2026	51-200	159 contacts →
	Exact match “At Cyberfort we are passionate about the cyber security services we deliver for our customers which keeps their people, data, systems and technology infrastructure secure…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	Investis Digital	Exact match	London, United KingdomHQ recorded Sep 29, 2026	501-1,000	158 contacts →
	Exact match “IDX (formerly Investis Digital) specializes in elevating companies and brands and maximizing technology to build strong, relatable, and authentic connections with their audiences.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Performanta	Exact match	Maidenhead, United KingdomHQ recorded Sep 29, 2026	51-200	156 contacts →
	Exact match “Performanta is a global cybersecurity and data risk management company dedicated to protecting people where data matters most.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	Bulletproof Cyber Security	Exact match	London, United KingdomHQ recorded Sep 29, 2026	51-200	123 contacts →
	Exact match “Bulletproof is now part of WorkNest Secure.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Finixio	Exact match	London, United KingdomHQ recorded Sep 29, 2026	51-200	96 contacts →
	Exact match “Finixio is UK based remote first Marketing & SEO Agency helping clients all over the world.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Wavenet Cyberguard	Exact match	Stourport-on-severn, United KingdomHQ recorded Sep 29, 2026	201-500	86 contacts →
	Exact match “CyberGuard Technologies is the security division of Wavenet.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Brainsouls	Exact match	Birmingham, United KingdomHQ recorded Sep 29, 2026	51-200	82 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	Foregenix	Exact match	Swindon, United KingdomHQ recorded Sep 29, 2026	51-200	80 contacts →
	Exact match “When your business relies on security, compliance and a strong reputation for taking care of your customers, you need a partner that understands your ethos, your challenges and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Reliance Cyber	Exact match	Waterloo, United KingdomHQ recorded Sep 29, 2026	51-200	80 contacts →
	Exact match “At Reliance Cyber, we believe in truly partnering with our customers.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	Stickyeyes	Exact match	Leeds, United KingdomHQ recorded Sep 29, 2026	201-500	77 contacts →
	Exact match “Search Marketing \| Content \| Strategy Delivered by passionate people.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	White HAT An Epam Company	Exact match	London, United KingdomHQ recorded Sep 29, 2026	51-200	77 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	77agency	Exact match	London, United KingdomHQ recorded Sep 29, 2026	51-200	64 contacts →
	Exact match “We are an award-winning full-service digital agency, part of Jakala group with 1,800 employees across 16 countries around the world.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Stripe OLT	Exact match	Bristol, United KingdomHQ recorded Sep 29, 2026	51-200	63 contacts →
	Exact match “From our offices in London, Bristol, and Manchester, Stripe OLT delivers cutting-edge cyber security and IT services to support and protect organisations in an ever-changing…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Purecontent	Exact match	Norwich, United KingdomHQ recorded Sep 29, 2026	11-50	63 contacts →
	Exact match “PureContent is a full-service marketing agency that provides everything your business needs to create impactful, results-driven marketing campaigns.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Sleeping Giant Media	Exact match	Folkestone, United KingdomHQ recorded Sep 29, 2026	51-200	60 contacts →
	Exact match “Sleeping Giant Media is an award-winning digital marketing agency providing digital marketing services for businesses that wish to grow online.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Icopify	Exact match	Liverpool, United KingdomHQ recorded Sep 29, 2026	11-50	60 contacts →
	Exact match “Welcome to icopify, your one-stop shop for digital marketing solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Make Agency	Exact match	London, United KingdomHQ recorded Sep 29, 2026	11-50	58 contacts →
	Exact match “Make is one of the UK's fastest-growing Digital Agencies, with a growing team of 50 - servicing clients including IBM, Asana, Eventbrite, Soldo, Campari, Clearpay, Disney…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Edirect	Exact match	Bournemouth, United KingdomHQ recorded Sep 29, 2026	11-50	54 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Hexegic	Exact match	London, United KingdomHQ recorded Sep 29, 2026	51-200	52 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Profiletree	Exact match	Belfast, United KingdomHQ recorded Sep 29, 2026	51-200	51 contacts →
	Exact match “A leading web design and website development company in Belfast, serving clients across Northern Ireland, Ireland, UK and the rest of the world.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	Unity Online	Exact match	Needham Market, United KingdomHQ recorded Sep 29, 2026	51-200	50 contacts →
	Exact match “At Unity Online, we exist to help businesses of all shapes and sizes achieve real success online.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Stellar Search	Exact match	London, United KingdomHQ recorded Sep 29, 2026	11-50	48 contacts →
	Exact match “We're a strategic digital marketing agency specialising in Paid Search, SEO, Google Shopping, Amazon and Social.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Firstfound	Exact match	Manchester, United KingdomHQ recorded Sep 29, 2026	11-50	47 contacts →
	Exact match “Since FirstFound has helped thousands of customers to succeed in the digital world.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “cybersecurity digital marketing agencies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 2,741 cybersecurity digital marketing agencies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 4,006 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity digital marketing agencies based in the United Kingdom at a glance

As of Sep 29, 2026

23.3%Verified-email coverage

8.5%Mobile-number coverage

6.3Average contacts per company

1-10Median size (employees)

32.7%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

1,955

11-50

664

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

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

Email last verified

Median 32.0d

1,7000–30

2,15331–60

12561–90

490–180

24180+

Company record updated

Median 94.0d

00–30

1,73931–60

6,11061–90

8,23090–180

1,121180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United Kingdom whose business descriptions match “cybersecurity digital marketing agencies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 4,006 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Cybersecurity digital marketing agencies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “cybersecurity digital marketing agencies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity digital marketing agencies are there based in the United Kingdom?

RevenueBase identified 2,741 company matches for cybersecurity digital marketing agencies associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Securityhq tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most cybersecurity digital marketing agencies?

London leads with 895 company records, 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 limited free results with 500 credits to start. Upgrading provides access to the 4,006 professional contacts with verified work emails tracked across these 2,741 companies; direct dials are available where recorded.

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 SmartSearch, 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.