Company lists · Data refreshed September 2026

Top 23 Securities compliance consulting firms based in London, United Kingdom

Name: Securities compliance consulting firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 66 companies tracked

RevenueBase identified 66 securities compliance consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 376 professional contacts across them, including 154 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers securities 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 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

66Companies

376Contacts tracked

154Verified emails

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The 23 largest securities compliance consulting firms based in London, United Kingdom

Ranked by team size

Top 23 of 66 securities compliance consulting firms 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 securities 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Novatus	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	102 contacts →
	Indirect 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 29, 2026
2	Lysis Group	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	38 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
3	RQC Group	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	34 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 29, 2026
4	Complycraft Consulting	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	14 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 29, 2026
5	Edmund	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	10 contacts →
	Indirect 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 29, 2026
6	Gbrw Limited	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	10 contacts →
	Indirect evidence “Established in 1995, GBRW has a 30-year track record of financial sector expertise in Europe, Asia, Africa and the Middle East.” Source: RevenueBase Database · checked Sep 29, 2026
7	Hartford Consulting LTD	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	10 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
8	Objectivus	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	10 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
9	Richdale Consultants	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	7 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
10	Complia	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	7 contacts →
	Strong 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
11	Skadi Limited	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	6 contacts →
	Indirect evidence “Founded in 2012, SKADI is focused on Business Integrity within the Financial Industry.” Source: RevenueBase Database · checked Sep 29, 2026
12	CSL	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	4 contacts →
	Partial 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
13	C&g Regulatory Solutions	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	3 contacts →
	Indirect evidence “Founded in 2021 by industry veteran Alexander Culley as A.C.Culley & Co, C&G Regulatory Solutions Limited, trading as C&G, offers deep experience of financial markets regulation…” Source: RevenueBase Database · checked Sep 29, 2026
14	Novatus Global	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	3 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
15	Apeiro Advisory & Business Solutions	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	3 contacts →
	Partial evidence “Financial Services Advisory That Delivers Measurable Results Apeiro is a professional services firm specialising in advisory, consulting, and assurance, partnering with financial…” Source: RevenueBase Database · checked Sep 29, 2026
16	CDT Programme Consulting	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	2 contacts →
	Partial evidence “CDT Programme Consulting provides clients with expert and experienced professionals who specialise in business-critical change and advisory services.” Source: RevenueBase Database · checked Sep 29, 2026
17	MCM Compliance Consultants	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	2 contacts →
	Partial evidence “At MCM Compliance, we take the time to develop a detailed understanding of our client's business model and risk profiles to enable us to tailor our advice, guidance and support.” Source: RevenueBase Database · checked Sep 29, 2026
18	GRR Consulting	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	2 contacts →
	Partial evidence “GRR Consulting helps firms uplift Governance, Risk and Regulatory frameworks so that they can take a proactive and holistic approach to ensuring better control of the organisation.” Source: RevenueBase Database · checked Sep 29, 2026
19	Chameleon Compliance LTD	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	2 contacts →
	Partial evidence “At Chameleon Compliance, we offer a suite of regulatory compliance, business culture, and training services to form an integrated regulatory support system for firms.” Source: RevenueBase Database · checked Sep 29, 2026
20	Fleming Mcgillivray & Co. UK Limited	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	2 contacts →
	Indirect evidence “FMConsult is an independent regulatory, product development and operational risk consultancy committed to assisting clients in aligning financial services processes with…” Source: RevenueBase Database · checked Sep 29, 2026
21	Tetractys Partners LLP	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	1 contacts →
	Partial evidence “Website temporarily down for maintenance* Tetractys Partners LLP is a compliance consultancy specialising in financial services regulatory compliance and general corporate…” Source: RevenueBase Database · checked Sep 29, 2026
22	Codigo Security	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	1 contacts →
	Partial evidence “Our security consultants have a wide range of expertise across a number of areas related to information security and compliance.” Source: RevenueBase Database · checked Sep 29, 2026
23	Gladius Assurance Services	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	1 contacts →
	Indirect evidence “Gladius Assurance Services is a regulatory risk & internal controls consultancy.” Source: RevenueBase Database · checked Sep 29, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: securities compliance consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names securities compliance consulting firms.
Partial evidence: Its own public description names part of securities compliance consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name securities compliance consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 23 of 66 securities compliance consulting firms based in London, United Kingdom

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

As of Sep 29, 2026

41.0%Verified-email coverage

5.7Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 66 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 securities 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 “securities 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 securities 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 securities 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, 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 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 securities 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 securities compliance consulting firms are there based in London, United Kingdom?

RevenueBase identified 66 securities 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?

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

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

London leads the United Kingdom with 66 headquartered companies, followed by Manchester (5) and Belfast (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 154 verified decision-maker contacts tracked across these 66 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.