Company lists · Data refreshed September 2026

Top 25 Offshore compliance and audit services based in London, United Kingdom

RevenueBase identified 103 offshore compliance and audit services headquartered in London, United Kingdom as of September 2026 and tracks 659 professional contacts across them, including 290 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers offshore compliance and audit services 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 29, 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 29, 2026 86% judged on-target in blind review
103Companies
659Contacts tracked
290Verified emails
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The 25 largest offshore compliance and audit services based in London, United Kingdom

Ranked by team size
Top 25 of 103 offshore compliance and audit services based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to offshore compliance and audit services: 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 evidenceLondon, United KingdomHQ checked Sep 29, 202651-20076 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceLondon, United KingdomHQ checked Sep 29, 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 29, 2026
3Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-20067 contacts →

Partial evidence

“Cosegic is the Compliance Partner to the world’s most competitive organisations.”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceLondon, United KingdomHQ checked Sep 29, 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 29, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-20034 contacts →

Indirect evidence

“Our expert consultants help regulated businesses navigate a changing world with confidence.”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5020 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5013 contacts →

Indirect evidence

“Established in 1993, Wilkins Southworth is a friendly firm of accountants based in Barnes, South West London.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceLondon, United KingdomHQ checked Sep 29, 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 29, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 29, 202611-5012 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
10Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-20010 contacts →

Partial evidence

“Centralis Governance, Risk & Compliance gives clients the freedom to focus on their core strengths and business strategy.”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceLondon, United KingdomHQ checked Sep 29, 202611-5010 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceLondon, United KingdomHQ checked Sep 29, 202651-20010 contacts →

Partial evidence

“Objectivus is an independent boutique consultancy specialising in Governance, Risk, and Compliance (GRC) advisory for the financial services sector.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-509 contacts →

Indirect evidence

“At Xcina Consulting we leverage a deep and experienced pool of skilled consultants to deliver all our assurance and advisory services.”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceLondon, United KingdomHQ checked Sep 29, 202611-508 contacts →

Partial evidence

“Callidus Solutions Limited is a City based niche consultancy specialising in Financial Services and Insurance related regulatory, compliance and Company Secretarial work.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceLondon, United KingdomHQ checked Sep 29, 20261-107 contacts →

Partial evidence

“Comsura is a compliance consultancy for regulated firms.”

Source: RevenueBase Database · checked Sep 29, 2026
16Indirect evidenceLondon, United KingdomHQ checked Sep 29, 20261-107 contacts →

Indirect evidence

“CyberSRC specialises in 1LoD & 2LoD Operational & IT Risk, Security and Control Management & Transformation through developing, implementing, auditing, risk assessing and managing…”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceLondon, United KingdomHQ checked Sep 29, 20261-107 contacts →

Indirect evidence

“Richdale Consultants was established over four years ago with a commitment at the heart of the business.”

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceLondon, United KingdomHQ checked Sep 29, 20261-107 contacts →

Partial evidence

“Complia offers innovative RegTech solutions - Agents and expert regulatory compliance consulting, helping businesses navigate complex regulations efficiently.”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceLondon, United KingdomHQ checked Sep 29, 20261-107 contacts →

Indirect evidence

“We know governance is not often seen as interesting or inspiring, but we are….ask our customers.”

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidenceLondon, United KingdomHQ checked Sep 29, 20261-106 contacts →

Partial evidence

“Compliance on Demand is a boutique consultancy for both regulated and unregulated businesses operating primarily in the real estate sector, but also general corporate and…”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceLondon, United KingdomHQ checked Sep 29, 20261-106 contacts →

Indirect evidence

“Founded in 2012, SKADI is focused on Business Integrity within the Financial Industry.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-504 contacts →

Indirect evidence

“Every day the regulatory environment in which big business operates becomes more complex and more challenging.”

Source: RevenueBase Database · checked Sep 29, 2026
23Strong evidenceLondon, United KingdomHQ checked Sep 29, 20261-104 contacts →

Strong evidence

“CSL is a solutions and results driven professional services firm providing Compliance, Risk Management and Audit services.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-503 contacts →

Indirect evidence

“We enable our clients to navigate their most complex issues, maximise commercial opportunities, and build sustainable futures.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-502 contacts →

Indirect evidence

“Working closely with technology businesses to embed a controls culture and protect value for shareholders.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 103 offshore compliance and audit services based in London, United Kingdom

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Offshore compliance and audit services based in London, United Kingdom at a glance

As of Sep 29, 2026
44.0%Verified-email coverage
6.4Average contacts per company
1-10Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
67
11-50
27
51-200
7
201-500
1
501-1,000
1

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 103 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 offshore compliance and audit services, 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 “offshore compliance and audit services”. 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 offshore compliance and audit services), 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 offshore compliance and audit services, 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, 290 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 29, 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 offshore compliance and audit services, 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 offshore compliance and audit services are there based in London, United Kingdom?

RevenueBase identified 103 offshore compliance and audit services 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?

Thistle Initiatives, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most offshore compliance and audit services?

London leads the United Kingdom with 103 headquartered companies, followed by Manchester (8) and Birmingham (4).

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 290 verified decision-maker contacts tracked across these 103 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 29, 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.