Company lists · Data refreshed October 2026

Top 17 Blockchain security companies based in the United Kingdom

RevenueBase identified 66 company matches for blockchain security companies associated with the United Kingdom as of October 2026 and tracks 242 professional contacts across them, including 70 with verified work emails. London is the largest hub.

This list covers company matches for blockchain security companies 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 October 1, 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 Oct 1, 2026 How this list was built
66Companies
242Contacts tracked
70Verified emails
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The 17 largest blockchain security companies based in the United Kingdom

Ranked by team size
Top 17 of 66 company matches for blockchain security companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 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 matchLondon, United KingdomHQ recorded Oct 1, 202651-20043 contacts →

Exact match

“We understand the risks behind digital assets.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2Exact matchOxford, United KingdomHQ recorded Oct 1, 202611-5028 contacts →

Exact match

“Innovators of Blockchain Security Technology, Trusted by Design.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-5014 contacts →

Exact match

“Vibranium Audits, our mission is to empower organizations to securely and confidently adopt blockchain, smart contract, and dApp technology.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-509 contacts →

Exact match

“Everything Cyber!”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Oct 1, 20261-109 contacts →

Exact match

“Powering Wallet Reputation, Security Tools & On-Chain Trust Web3Workx is the ecosystem behind WalletTag, a real-time wallet reputation protocol used to mark wallets as Monitored…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchEdinburgh, United KingdomHQ recorded Oct 1, 202611-505 contacts →

Exact match

“Offering a full suite of security, blockchain development and consulting services, Spade Tech is a UK based blockchain studio with international reach.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-505 contacts →

Exact match

“TECXA is a forward-thinking cybersecurity, artificial intelligence, and digital trust consulting firm delivering strategic security solutions for modern enterprises, financial…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchOxford, United KingdomHQ recorded Oct 1, 20261-104 contacts →

Exact match

“We work with startups and small businesses to help them realise the potential of the blockchain and bring them cutting edge technology in a way that non-rocket scientists can…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchMilton Keynes, United KingdomHQ recorded Oct 1, 202611-503 contacts →

Exact match

“Founded in London in 2019, Pyramid Ledger is a leading cybersecurity firm dedicated to enhancing digital security with comprehensive and bespoke solutions.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Oct 1, 20261-103 contacts →

Exact match

“Uncloak is the world's first blockchain powered cyber threat solution putting businesses one step ahead of hackers utilising: • Advanced artificial intelligence to check public &…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-502 contacts →

Exact match

“HYDN is a multi-disciplinary business that delivers services, systems and optimization across multiple verticals.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-502 contacts →

Exact match

“We are an accomplished international team specialising in commercial research, development and delivery of Blockchain technology projects.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchStonehouse, United KingdomHQ recorded Oct 1, 20261-101 contacts →

Exact match

“Kryptosec Ltd was established in 2001, and provides project work and training courses in cryptography, cyber security and related areas.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchHigh Wycombe, United KingdomHQ recorded Oct 1, 20261-101 contacts →

Exact match

“Sentnl is a trusted pioneer in the blockchain security industry.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Oct 1, 20261-101 contacts →

Exact match

“OnChain Industries leads in blockchain intelligence.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Oct 1, 20261-101 contacts →

Exact match

“In our pursuit of exploring the art of the possible, we're investigating groundbreaking technologies that could transform how businesses operate.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Oct 1, 20261-101 contacts →

Exact match

“Researching and developing world-class building blocks and product suites, with the sole purpose of securing and advancing the velocity of research and development of blockchain…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 17 of 66 blockchain security companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 70 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Blockchain security companies based in the United Kingdom at a glance

As of Oct 1, 2026
28.9%Verified-email coverage
3.7Average contacts per company
1-10Median size (employees)
63.6%Largest-city concentration · London
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
36
11-50
24
51-200
6

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 66 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 “blockchain security companies” 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 70 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 October 1, 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.

Blockchain security companies 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 “blockchain security companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many blockchain security companies are there based in the United Kingdom?

RevenueBase identified 66 company matches for blockchain security companies associated with the United Kingdom as of October 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?

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

Which city has the most blockchain security companies?

London leads with 42 company records, followed by Oxford (4) and Bradford (1).

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 70 professional contacts with verified work emails tracked across these 66 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 October 1, 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.