Company lists · Data refreshed September 2026

Top 21 Fintech security companies based in the United Kingdom

RevenueBase identified 50 fintech security companies headquartered in the United Kingdom as of September 2026 and tracks 1,720 professional contacts across them, including 847 with verified work emails and 132 with mobile numbers. London is the largest hub.

This list covers fintech security companies headquartered in the 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, how directly it supports the match, and when it was last checked. Data refreshed September 2, 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 Match evidence on every row Refreshed Sep 2, 2026 86% judged on-target in blind review
50Companies
1,720Contacts tracked
847Verified emails
132Mobile numbers
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The 21 largest fintech security companies based in the United Kingdom

Ranked by team size
Top 21 of 50 fintech security companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 2, 2026. Evidence rates how directly each company's own description names fintech security companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
SISAPartial evidence
Leicester, United Kingdom201-500739

“SISA is a global forensics-driven cybersecurity solutions company, trusted by leading organizations for securing their businesses with robust preventive, detective, and corrective…”

Source: company website · checked Sep 2, 2026
2
BiocatchIndirect evidence
London, United Kingdom201-500429

“BioCatch prevents financial crime by recognizing patterns in human behavior.”

Source: company website · checked Sep 2, 2026
3
Synectics SolutionsIndirect evidence
Burslem, United Kingdom201-500181

“Synectics Solutions creates bespoke solutions which mitigate financial and identity fraud with outstanding effectiveness.”

Source: company website · checked Sep 2, 2026
4
Ravelin TechnologyIndirect evidence
London, United Kingdom51-200140

“AI-native fraud prevention company Ravelin provides sophisticated technology and dedicated support to help ecommerce businesses block advanced fraud threats and accept payments…”

Source: company website · checked Sep 2, 2026
5
fraud.comIndirect evidence
London, United Kingdom11-5033

“Fraud.com ensures trust at every step of the customer's digital journey; this complete end-to-end protection delivers unified identity, authentication and fraud detection and…”

Source: company website · checked Sep 2, 2026
6
CyberhiveIndirect evidence
Newbury, United Kingdom11-5016

“CyberHive protects the most valued organisations, their people data, and assets, with patented technology that is simple, secure and performant.”

Source: company website · checked Sep 2, 2026
7
Simplified SolutionsIndirect evidence
London, United Kingdom11-5010

“Simplified Solutions protects organisation’s most valuable asset – Financial, Customer, Employee and Transactional Data.”

Source: company website · checked Sep 2, 2026
8
Cybertonica LTDIndirect evidence
London, United Kingdom11-5010

“Cybertonica uses Machine Learning and Artificial Intelligence to manage risk and fraud, increasing trust and growing frictionless banking and m/e-payments globally.”

Source: company website · checked Sep 2, 2026
9
CykubeIndirect evidence
London, United Kingdom11-509

“Everything Cyber!”

Source: company website · checked Sep 2, 2026
10
EndidaIndirect evidence
Southampton, United Kingdom11-507

“Endida empowers Fraud, Risk and Cybersecurity leaders with intelligent, integrated technologies and solutions that drives compliance, reduces costs, boosts operational efficiency…”

Source: company website · checked Sep 2, 2026
11
SAFFEPartial evidence
London, United Kingdom1-105

“Our technology has been used for years by major institutions throughout the globe and is designed to get you started immediately, increasing the security of your business without…”

Source: company website · checked Sep 2, 2026
12
SafecypherPartial evidence
Leeds, United Kingdom1-104

“Safecypher Limited is an investor-backed technology start-up that develops innovations to address security and fraud prevention for the global payments industry.”

Source: company website · checked Sep 2, 2026
13
Kit365Indirect evidence
Leicester, United Kingdom1-104

“KIT365 is a cybersecurity company based in the city of Leicester.”

Source: company website · checked Sep 2, 2026
14
KalgeraPartial evidence
United Kingdom1-104

“Kalgera is a fintech platform that uses machine learning and cutting-edge neuroscience to enable banks to identify and protect vulnerable customers.”

Source: company website · checked Sep 2, 2026
15
FincoleIndirect evidence
London, United Kingdom1-103

“Fincole is a growing global technology firm serving multiple industries including financial services with a passion to develop highly secure and intelligent solutions.”

Source: company website · checked Sep 2, 2026
16
UncloakIndirect evidence
London, United Kingdom1-103

“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 &…”

Source: company website · checked Sep 2, 2026
17
DLP AssuredIndirect evidence
London, United Kingdom51-2002

“DLP Assured work with enterprise customers to mitigate the threat from fraud on ecommerce systems, to mitigate the treat from insider attack and using leading edge technology to…”

Source: company website · checked Sep 2, 2026
18
Cybvantic LimitedPartial evidence
Manchester, United Kingdom11-502

“We have a highly skilled consultative approach using the very latest in disruptive multi patented security technologies against this ever-evolving threats.”

Source: company website · checked Sep 2, 2026
19
LDN LabsPartial evidence
London, United Kingdom11-502

“Founded as a FinTech consultancy to deliver new solutions for companies that need additional specialist software knowledge, or that require additional engineering capabilities…”

Source: company website · checked Sep 2, 2026
20
Newton Systems LTDPartial evidence
New Waltham, United Kingdom1-102

“Stopping hackers and creating secure software since 2015 - to the fintech, banking and aerospace industry.”

Source: company website · checked Sep 2, 2026
21London, United Kingdom1-101

“Focused on Fintechs and regulated Financial Services SMEs, we offer a suite of services to build enterprise level operational resilience and improve your ability to recover…”

Source: company website · checked Sep 2, 2026

Showing 21 of 50 fintech security companies based in the United Kingdom

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Fintech security companies based in the United Kingdom at a glance

As of Sep 2, 2026
11-50Median size (employees)
LondonLargest hub · 29 HQs
132Contacts with mobile numbers
Sep 2, 2026Data refreshed

Companies by employee count

1-10
24
11-50
18
51-200
3
201-500
3
501-1,000
1

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 fintech security companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “fintech security companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among fintech security companies, and records with no verified work email. Companies headquartered outside United Kingdom 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 an evidence 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, 847 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 2, 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.

Fintech security companies by metro

  • Fintech security companies in London29

Frequently asked

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

RevenueBase identified 50 fintech security companies headquartered in the 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?

SISA, headquartered in Leicester, tops this list with the largest team on record.

Which city has the most fintech security companies?

London leads with 29 headquartered companies, followed by Manchester (2) and Leicester (2).

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 847 verified decision-maker contacts tracked across these 50 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 2, 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.