Company lists · Data refreshed September 2026

Top 25 Financial data security consultants based in the United Kingdom

RevenueBase identified 303 financial data security consultants headquartered in the United Kingdom as of September 2026 and tracks 2,775 professional contacts across them, including 1,154 with verified work emails. London is the largest hub.

This list covers financial data security consultants 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 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 28, 2026 86% judged on-target in blind review
303Companies
2,775Contacts tracked
1,154Verified emails
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The 25 largest financial data security consultants based in the United Kingdom

Ranked by team size
Top 25 of 303 financial data security consultants based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to financial data security consultants: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceNewry, United KingdomHQ checked Sep 28, 20261,001-5,000988 contacts →

Partial evidence

“First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-200126 contacts →

Indirect evidence

“We are TRPGLOBAL, your strategic partner in helping you with the complexities of risk management.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceHigh Wycombe, United KingdomHQ checked Sep 28, 202651-20074 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceLondon, United KingdomHQ checked Sep 28, 202611-5074 contacts →

Partial evidence

“Aptivaa is a vertically focused risk and compliance professional services firm delivering risk management solutions to the global financial services industry.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceBelfast, United KingdomHQ checked Sep 28, 202651-20064 contacts →

Partial evidence

“fscom is one of the premier specialist consulting firms providing governance, risk, and compliance solutions to financial services institutions in the UK and Ireland.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceSouthampton, United KingdomHQ checked Sep 28, 202651-20060 contacts →

Indirect evidence

“Many organisations are dealing with multiple frameworks, overlapping tools, disconnected ownership, and increasing pressure from regulators, customers, and boards.”

Source: RevenueBase Database · checked Sep 28, 2026
7Strong evidenceAlderley Edge, United KingdomHQ checked Sep 28, 202651-20057 contacts →

Strong evidence

“CyberLab is the UK-leading cyber security consultancy and managed services provider, trusted by over 1,200 enterprise businesses, government departments, and household names to…”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,00038 contacts →

Indirect evidence

“We have joined S&W and this profile is no longer being maintained.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-20038 contacts →

Partial evidence

“Since 2001, Lysis Group has established itself as a global leader in the field of Financial Crime (FC) compliance.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceSolihull, United KingdomHQ checked Sep 28, 202611-5031 contacts →

Partial evidence

“SPECIALISTS IN IT SECURITY AND COMPLIANCE Our goal is to help customers define, develop and implement information security and compliance services, no matter what stage of the…”

Source: RevenueBase Database · checked Sep 28, 2026
11Strong evidenceBristol, United KingdomHQ checked Sep 28, 202611-5024 contacts →

Strong evidence

“i3Secure is a cyber security and information assurance consultancy protecting the confidentiality, integrity and availability of data across defence, public and private sectors.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceWelwyn Garden City, United KingdomHQ checked Sep 28, 202611-5023 contacts →

Indirect evidence

“For the past 17 years, we have been successfully empowering our clients to protect their business from cyber-threats and comply with industry standards and regulations.”

Source: RevenueBase Database · checked Sep 28, 2026
13Strong evidenceLondon, United KingdomHQ checked Sep 28, 202611-5020 contacts →

Strong evidence

“LMS Security are a fully Independent, privately owned, Internationally recognised and accredited Security Consultancy; owned and built by Electronic and Physical Security…”

Source: RevenueBase Database · checked Sep 28, 2026
14Strong evidenceLeeds, United KingdomHQ checked Sep 28, 202611-5020 contacts →

Strong evidence

“One Compliance are data privacy & cyber security specialists that focus on improving our clients security posture so that they can prioritise and mitigate security risks…”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202611-5020 contacts →

Indirect evidence

“We at CF assist enterprises manage IT risks better.”

Source: RevenueBase Database · checked Sep 28, 2026
16Strong evidenceTunbridge Wells, United KingdomHQ checked Sep 28, 202611-5019 contacts →

Strong evidence

“Razorthorn Security is a specialist cybersecurity consultancy founded in 2007, with nearly two decades of experience helping organisations protect their data, their systems and…”

Source: RevenueBase Database · checked Sep 28, 2026
17Strong evidenceLondon, United KingdomHQ checked Sep 28, 202611-5017 contacts →

Strong evidence

“Trusted Partner to the Financial Services *From the business, to your business* Mirador Solutions Consultancy is a trusted and strategic partner for financial services firms, with…”

Source: RevenueBase Database · checked Sep 28, 2026
18Strong evidenceLondon, United KingdomHQ checked Sep 28, 202611-5014 contacts →

Strong evidence

“Demand more from your AI & Data Security partner.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-20013 contacts →

Indirect evidence

“At Salient, we pride ourselves on the diverse skill sets and extraordinary experience that enable our teams to bring invaluable insights and exceptional adaptability to each and…”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceAntrim, United KingdomHQ checked Sep 28, 202611-5012 contacts →

Indirect evidence

“ANSEC is the consulting division of Outsource Group established in May 2007 and with a proven track record in working with some of the countries most highly regarded businesses…”

Source: RevenueBase Database · checked Sep 28, 2026
21Strong evidenceWinchester, United KingdomHQ checked Sep 28, 202611-5012 contacts →

Strong evidence

“Security Consultants at Infosec Partners are formally trained to a high degree, having at least one of the following Security Management certifications: CESG CLAS, CISSP, CISM…”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceLondon, United KingdomHQ checked Sep 28, 202611-5012 contacts →

Partial evidence

“Risk Reward is a leading global provider of advisory services in financial risk management, internal audit, AML/CTF and tailored executive training services to the banking…”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceLondon, United KingdomHQ checked Sep 28, 20261-1010 contacts →

Partial evidence

“The Edmund Group was founded with the sole purpose of enriching the financial services marketplace for the betterment of customer experiences.”

Source: RevenueBase Database · checked Sep 28, 2026
24Strong evidenceLondon, United KingdomHQ checked Sep 28, 202611-5010 contacts →

Strong evidence

“Hartford is a Professional Services consultancy which specialises in Risk and Compliance within the financial service sector.”

Source: RevenueBase Database · checked Sep 28, 2026
25Strong evidenceLondon, United KingdomHQ checked Sep 28, 202611-5010 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 303 financial data security consultants based in the United Kingdom

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Financial data security consultants based in the United Kingdom at a glance

As of Sep 28, 2026
41.6%Verified-email coverage
9.2Average contacts per company
1-10Median size (employees)
43.2%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
216
11-50
63
51-200
13
201-500
7
501-1,000
2
1,001-5,000
2

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 303 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 financial data security consultants, 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 the United Kingdom whose own description of what they do matches “financial data security consultants”. 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 financial data security consultants), 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 financial data security consultants, 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 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, 1,154 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 28, 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.

Financial data security consultants by metro

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 financial data security consultants, 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 financial data security consultants are there based in the United Kingdom?

RevenueBase identified 303 financial data security consultants 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?

First Derivative, headquartered in Newry, tops this list with the largest team on record.

Which city has the most financial data security consultants?

London leads with 131 headquartered companies, followed by Manchester (7) and Leeds (5).

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 1,154 verified decision-maker contacts tracked across these 303 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 28, 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.