Company lists · Data refreshed September 2026

Top 25 Cybersecurity event marketing services based in the United Kingdom

RevenueBase identified 789 company matches for cybersecurity event marketing services associated with the United Kingdom as of September 2026 and tracks 13,995 professional contacts across them, including 5,966 with verified work emails. London is the largest hub.

This list covers company matches for cybersecurity event marketing services 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 28, 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 28, 2026 How this list was built
789Companies
13,995Contacts tracked
5,966Verified emails
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The 25 largest cybersecurity event marketing services based in the United Kingdom

Ranked by team size
Top 25 of 789 company matches for cybersecurity event marketing services based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAbingdon, United KingdomHQ recorded Sep 28, 20265,001-10,0004,925 contacts →

Exact match

“Sophos is a cybersecurity leader defending organizations globally with an AI-driven platform and expert-led services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 28, 2026501-1,000502 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 28, 2026 · View company records in RevenueBase
3Exact matchReading, United KingdomHQ recorded Sep 28, 2026201-500303 contacts →

Exact match

“Bridewell is the trusted cyber security partner for organisations operating within Critical National Infrastructure (CNI), as well as companies who want the highest standard of…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 28, 2026201-500242 contacts →

Exact match

“Obrela Security Industries is a global provider of cyber security services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchThatcham, United KingdomHQ recorded Sep 28, 202651-200159 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 28, 2026 · View company records in RevenueBase
6Exact matchMaidenhead, United KingdomHQ recorded Sep 28, 202651-200156 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 28, 2026 · View company records in RevenueBase
7Exact matchFleet, United KingdomHQ recorded Sep 28, 202651-200125 contacts →

Exact match

“KHIPU Networks is an award winning international Cyber Security Company delivering a wide range of network, wireless and security solutions, technologies and services across…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-200123 contacts →

Exact match

“Bulletproof is now part of WorkNest Secure.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-200120 contacts →

Exact match

“As the number one anti-piracy provider, Friend MTS is the trusted cybersecurity partner of the biggest brands in media, sports, and entertainment.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-200109 contacts →

Exact match

“Red Sift enables organizations to anticipate, respond to, and recover from cyber attacks while continuing to operate effectively.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-200105 contacts →

Exact match

“Cybersecurity specialists providing technology and telecoms solutions that gives you the leadership, experience and resilience you need to build and secure the future of work.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-20096 contacts →

Exact match

“CyberOne is a Microsoft Security Elite Partner and one of only 100 global Microsoft partners recognised with Microsoft-Verified Managed XDR solution status.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchLeeds, United KingdomHQ recorded Sep 28, 202651-20095 contacts →

Exact match

“SEP2 is an award-winning UK-based cyber security specialist service provider, powered by a dedicated team of experts available 24/7/365.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchStourport-on-severn, United KingdomHQ recorded Sep 28, 2026201-50086 contacts →

Exact match

“CyberGuard Technologies is the security division of Wavenet.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-20084 contacts →

Exact match

“Cybersecurity should be simple.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchSwindon, United KingdomHQ recorded Sep 28, 202651-20080 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 28, 2026 · View company records in RevenueBase
17Exact matchWaterloo, United KingdomHQ recorded Sep 28, 202651-20080 contacts →

Exact match

“At Reliance Cyber, we believe in truly partnering with our customers.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-20079 contacts →

Exact match

“Cybanetix is a leading provider of managed Cyber Security Service and hosted SIEM and breach detection services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchSouth & West Hampstead, United KingdomHQ recorded Sep 28, 202651-20079 contacts →

Exact match

“Virtual IT are a leading provider of cyber-secure cloud and managed IT services in the UK, entrusted by over 700 businesses and schools as their end-to-end technology partner.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-20077 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 28, 2026 · View company records in RevenueBase
21Exact matchHigh Wycombe, United KingdomHQ recorded Sep 28, 202651-20074 contacts →

Exact match

“Saepio increase awareness, reduce risk and improve security in a continually evolving threat landscape.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchOxford, United KingdomHQ recorded Sep 28, 202651-20073 contacts →

Exact match

“Dionach by Nomios has over 25 years of expertise in information security, supporting organisations in building resilience against ever‑evolving cyber threats.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchMilton Keynes, United KingdomHQ recorded Sep 28, 2026201-50073 contacts →

Exact match

“Bluecube - An Ekco Company Our mission is simple.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchDoncaster, United KingdomHQ recorded Sep 28, 202651-20062 contacts →

Exact match

“At DigitalXRAID, we’re more than just a managed security services provider – we’re your trusted partner in safeguarding your business from cyber threats.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchGlasgow, United KingdomHQ recorded Sep 28, 202611-5057 contacts →

Exact match

“Please note we have a new Head Office address: 5 Clydesmill Road, Cambuslang, Glasgow G32 8RE • Cyber Security • IT Support • Print Management • Business Communications •…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 789 cybersecurity event marketing services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 5,966 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity event marketing services based in the United Kingdom at a glance

As of Sep 28, 2026
42.6%Verified-email coverage
17.7Average contacts per company
1-10Median size (employees)
38.5%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
486
11-50
219
51-200
61
201-500
13
501-1,000
4
1,001-5,000
3
5,001-10,000
2
10001+
1

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 789 companies.

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 event marketing services” 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 5,966 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 28, 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.

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 event marketing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity event marketing services are there based in the United Kingdom?

RevenueBase identified 789 company matches for cybersecurity event marketing services 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?

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

Which city has the most cybersecurity event marketing services?

London leads with 304 company records, followed by Manchester (37) and Birmingham (16).

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 5,966 professional contacts with verified work emails tracked across these 789 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 789 cybersecurity event marketing services based in the United Kingdom. Start with a free account, no credit card.

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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.