Company lists · Data refreshed September 2026

Top 25 Financial services compliance consulting firms based in London, United Kingdom

RevenueBase identified 204 financial services compliance consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 1,483 professional contacts across them, including 604 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers financial services compliance consulting firms headquartered in London, 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
204Companies
1,483Contacts tracked
604Verified emails
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The 25 largest financial services compliance consulting firms based in London, United Kingdom

Ranked by team size
Top 25 of 204 financial services compliance consulting firms based in London, 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 services compliance consulting firms: 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
1Strong evidenceLondon, United KingdomHQ checked Sep 28, 202651-200132 contacts →

Strong evidence

“Plenitude provides market-leading Financial Crime Compliance (FCC) advisory, transformation, technology, data analytics, and managed services.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-200102 contacts →

Partial evidence

“We enable financial services firms to meet their most complex regulatory requirements through specialist technology and expert-led advisory services.”

Source: RevenueBase Database · checked Sep 28, 2026
3Strong evidenceLondon, United KingdomHQ checked Sep 28, 202651-20076 contacts →

Strong evidence

“Thistle Initiatives is an award‑winning management consultancy specialising in regulatory compliance, financial crime and business transformation.”

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

Strong 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 evidenceLondon, United KingdomHQ checked Sep 28, 202651-20069 contacts →

Partial evidence

“In complex transformation programmes, risk, regulation, financial crime, data, technology and operations no longer sit in separate silos.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-20058 contacts →

Partial evidence

“DCM solve targeted Financial Crime Prevention challenges.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-20047 contacts →

Partial evidence

“Our purpose is to enable individuals and businesses to maximise their financial potential.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-20044 contacts →

Indirect evidence

“GreySpark Partners helps capital markets firms transform how they operate, compete and innovate.”

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

Strong 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
10Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-20036 contacts →

Indirect evidence

“Welcome to Complyport - member of ComplyMAP Group!”

Source: RevenueBase Database · checked Sep 28, 2026
11Strong evidenceLondon, United KingdomHQ checked Sep 28, 202611-5034 contacts →

Strong evidence

“RQC Group is an industry-leading financial compliance consultancy with offices in London and New York, specialising in FCA, SEC and CFTC/NFA Compliance Consulting, Investment…”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-20026 contacts →

Partial evidence

“KBM Group was founded as a Chartered Certified Accountancy firm, offering advisory and consulting services for business start-ups and organizations looking to strengthen their…”

Source: RevenueBase Database · checked Sep 28, 2026
13Strong evidenceLondon, United KingdomHQ checked Sep 28, 202611-5022 contacts →

Strong evidence

“What we do We are a specialist professional services firm providing consulting and assurance services, particularly to the Financial Services sector.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceLondon, United KingdomHQ checked Sep 28, 202611-5021 contacts →

Partial evidence

“If you lead a Financial Crime function, you know the reality: relentless pressure, rising expectations, limited capacity - and no room for error.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceLondon, United KingdomHQ checked Sep 28, 202611-5021 contacts →

Partial evidence

“Sicsic Advisory is a leading strategic regulatory and risk consultancy, supporting financial services firms to build and grow sustainable businesses.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceLondon, United KingdomHQ checked Sep 28, 202611-5017 contacts →

Partial 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
17Strong evidenceLondon, United KingdomHQ checked Sep 28, 20261-1016 contacts →

Strong evidence

“Fintech Harbor Consulting is a leading consulting firm that provides services in the spheres of taxation, financial consultancy, business incorporation, and support and…”

Source: RevenueBase Database · checked Sep 28, 2026
18Strong evidenceLondon, United KingdomHQ checked Sep 28, 202611-5015 contacts →

Strong evidence

“FINTRAIL, a Cosegic company, is a financial crime compliance consultancy focused on the needs of leading banks, FinTechs and other regulated institutions.”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceLondon, United KingdomHQ checked Sep 28, 20261-1014 contacts →

Partial evidence

“We are an independent (employee owned) compliance consultancy providing services to FCA regulated firms and to other compliance consultancies.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceLondon, United KingdomHQ checked Sep 28, 202611-5014 contacts →

Partial evidence

“Offering A Clearer Perspective The Association Of Professional Compliance Consultants, or APCC, is the membership organisation for compliance consultants who advise firms who are…”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceLondon, United KingdomHQ checked Sep 28, 202611-5013 contacts →

Partial evidence

“1st Risk Solutions is a risk and compliance specialist firm providing pragmatic, effective solutions to enterprise risk management and regulatory requirements.”

Source: RevenueBase Database · checked Sep 28, 2026
22Strong evidenceLondon, United KingdomHQ checked Sep 28, 202611-5013 contacts →

Strong evidence

“ABM Global Compliance specializes in providing financial services to various compliance firms, whose vast experience of regulatory matters in the financial services sector can…”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceLondon, United KingdomHQ checked Sep 28, 202611-5012 contacts →

Partial evidence

“API Compliance is a leading consultancy providing comprehensive compliance solutions for payments and e-money businesses across the UK and EU.”

Source: RevenueBase Database · checked Sep 28, 2026
24Strong evidenceLondon, United KingdomHQ checked Sep 28, 202611-5012 contacts →

Strong evidence

“Beverley Bell Consulting & Training supports clients with compliance, governance, risk, health and safety and regulatory advice and training.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial 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

Showing 25 of 204 financial services compliance consulting firms based in London, United Kingdom

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Financial services compliance consulting firms based in London, United Kingdom at a glance

As of Sep 28, 2026
40.7%Verified-email coverage
7.3Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
140
11-50
51
51-200
13

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 204 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 services compliance consulting firms, 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 London, United Kingdom whose own description of what they do matches “financial services compliance consulting firms”. 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 services compliance consulting firms), 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 services compliance consulting firms, and records with no verified work email. Companies headquartered outside London 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, 604 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.

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 services compliance consulting firms, 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 services compliance consulting firms are there based in London, United Kingdom?

RevenueBase identified 204 financial services compliance consulting firms headquartered in London, 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?

Plenitude Consulting, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most financial services compliance consulting firms?

London leads the United Kingdom with 204 headquartered companies, followed by Manchester (16) and Leeds (7).

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 604 verified decision-maker contacts tracked across these 204 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.