Company lists · Data refreshed September 2026

Top 25 Financial services consulting firms based in the United Kingdom

Name: Financial services consulting firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 2,136 companies tracked

RevenueBase identified 2,136 financial services consulting firms headquartered in the United Kingdom as of September 2026 and tracks 27,833 professional contacts across them, including 8,896 with verified work emails and 4,313 with mobile numbers. London is the largest hub.

This list covers financial services consulting firms 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 2, 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 RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

2,136Companies

27,833Contacts tracked

8,896Verified emails

4,313Mobile numbers

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The 25 largest financial services consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 2,136 financial services consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to financial services 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	Barnett Waddingham	Indirect evidence	Guildford, United Kingdom	1,001-5,000	1,352 contacts →
	Indirect evidence “We are a leading UK professional services consultancy at the forefront of risk, pensions, investment and insurance.” Source: RevenueBase Database · checked Sep 2, 2026
2	First Derivative	Indirect evidence	Newry, United Kingdom	1,001-5,000	1,022 contacts →
	Indirect 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 2, 2026
3	Mercer UK	Indirect evidence	London, United Kingdom	10001+	334 contacts →
	Indirect evidence “At Mercer, A Marsh business, we’re helping our clients realize their investment objectives, shape the future of work, and enhance health and retirement outcomes for their people.” Source: RevenueBase Database · checked Sep 2, 2026
4	Finsurge	Partial evidence	London, United Kingdom	201-500	302 contacts →
	Partial evidence “At FinSurge, we are at the forefront of transforming the global financial landscape.” Source: RevenueBase Database · checked Sep 2, 2026
5	4most	Partial evidence	London, United Kingdom	201-500	271 contacts →
	Partial evidence “We are 4most: the go-to analytics consultancy for financial institutions who want to make better, data-driven decisions with confidence.” Source: RevenueBase Database · checked Sep 2, 2026
6	Datos Insights	Partial evidence	London, United Kingdom	51-200	255 contacts →
	Partial evidence “Datos Insights is the leading research and advisory partner to the banking, insurance, securities, and payments technology industries-both the financial services firms and the…” Source: RevenueBase Database · checked Sep 2, 2026
7	Albany Beck	Strong evidence	London, United Kingdom	201-500	236 contacts →
	Strong evidence “Albany Beck is a client-first consulting firm helping financial services organisations deliver complex change and build capability, not dependency.” Source: RevenueBase Database · checked Sep 2, 2026
8	Marshberry	Partial evidence	London, United Kingdom	201-500	219 contacts →
	Partial evidence “MarshBerry – Helping Clients Learn, Improve & Realize Value MarshBerry is a global leader in investment banking and consulting dedicated to helping insurance brokerages, and firms…” Source: RevenueBase Database · checked Sep 2, 2026
9	Protiviti UK	Indirect evidence	Milton Keynes, United Kingdom	201-500	205 contacts →
	Indirect evidence “Welcome to the Protiviti perspective.” Source: RevenueBase Database · checked Sep 2, 2026
10	Liqueo	Indirect evidence	London, United Kingdom	51-200	123 contacts →
	Indirect evidence “Specialists in change and transformation across asset, wealth and insurance.” Source: RevenueBase Database · checked Sep 2, 2026
11	Trpglobal	Indirect evidence	London, United Kingdom	51-200	123 contacts →
	Indirect evidence “We are TRPGLOBAL, your strategic partner in helping you with the complexities of risk management.” Source: RevenueBase Database · checked Sep 2, 2026
12	Square 4 Partners	Partial evidence	United Kingdom	51-200	118 contacts →
	Partial evidence “We help protect regulated firms across an evolving spectrum of conduct, financial crime and operational risk.” Source: RevenueBase Database · checked Sep 2, 2026
13	Fenchurch Advisory Partners	Indirect evidence	London, United Kingdom	51-200	98 contacts →
	Indirect evidence “Fenchurch Advisory Partners is one of the leading independent corporate finance advisory firms in London.” Source: RevenueBase Database · checked Sep 2, 2026
14	Valentia Partners	Partial evidence	London, United Kingdom	51-200	93 contacts →
	Partial evidence “Valentia Partners is a specialist Management Consulting firm.” Source: RevenueBase Database · checked Sep 2, 2026
15	PMC Treasury	Indirect evidence	London, United Kingdom	51-200	92 contacts →
	Indirect evidence “An independent specialist treasury and risk management consultancy offering expert advice and practical support to corporates, private equity and infrastructure funds globally.” Source: RevenueBase Database · checked Sep 2, 2026
16	Amber River True Bearing	Partial evidence	Chorley, United Kingdom	51-200	85 contacts →
	Partial evidence “Amber River True Bearing.the new name for True Bearing Chartered Financial Planners” Source: RevenueBase Database · checked Sep 2, 2026
17	BE Shaping The Future UK	Partial evidence	London, United Kingdom	51-200	82 contacts →
	Partial evidence “We are a management consultancy based in London; working with our clients (predominantly global banks, payment providers and other financial institutions) to shape their future…” Source: RevenueBase Database · checked Sep 2, 2026
18	Andile	Partial evidence	Winchester, United Kingdom	51-200	79 contacts →
	Partial evidence “We are a partner for Banks and Financial Institutions - making your trade, treasury, risk and assurance functions smarter and more efficient.” Source: RevenueBase Database · checked Sep 2, 2026
19	Thistle Initiatives	Partial evidence	London, United Kingdom	51-200	74 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 2, 2026
20	Punter Southall	Indirect evidence	London, United Kingdom	201-500	73 contacts →
	Indirect evidence “Punter Southall is a group of companies with one aim – helping businesses and people make better decisions.” Source: RevenueBase Database · checked Sep 2, 2026
21	FSCOM	Strong evidence	Belfast, United Kingdom	51-200	69 contacts →
	Strong 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 2, 2026
22	Waystone Compliance Solutions	Partial evidence	London, United Kingdom	1,001-5,000	68 contacts →
	Partial evidence “Waystone is a leading asset-servicing solutions provider of institutional governance, administration, risk and compliance services to financial institutions.” Source: RevenueBase Database · checked Sep 2, 2026
23	NEW Link Consulting	Partial evidence	London, United Kingdom	51-200	68 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 2, 2026
24	Camelot	Indirect evidence	London, United Kingdom	51-200	64 contacts →
	Indirect evidence “We are a network of independent consultants who are ex-C-Suite Execs/Senior Managers who have all been there and done it in top organisations, mainly in insurance but others as…” Source: RevenueBase Database · checked Sep 2, 2026
25	Celent	Indirect evidence	London, United Kingdom	51-200	57 contacts →
	Indirect evidence “For over 20 years, Celent has helped senior executives make confident decisions around their technology strategies to execute at scale.” Source: RevenueBase Database · checked Sep 2, 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: financial services 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 financial services consulting firms.
Partial evidence: Its own public description names part of financial services consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name financial services 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 25 of 2,136 financial services consulting firms based in the United Kingdom

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Financial services consulting firms based in the United Kingdom at a glance

As of Sep 2, 2026

32.0%Verified-email coverage

15.5%Mobile-number coverage

13.0Average contacts per company

1-10Median size (employees)

41.6%Largest-city concentration · London

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

1,584

11-50

319

51-200

201-500

501-1,000

1,001-5,000

10001+

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 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 the United Kingdom whose own description of what they do matches “financial services 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 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 consulting firms, 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, 8,896 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.

Financial services consulting firms by metro

Financial services consulting firms in London888

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 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 consulting firms are there based in the United Kingdom?

RevenueBase identified 2,136 financial services consulting firms 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?

Barnett Waddingham, headquartered in Guildford, tops this list with the largest team on record.

Which city has the most financial services consulting firms?

London leads with 888 headquartered companies, followed by Manchester (41) and Edinburgh (23).

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 8,896 verified decision-maker contacts tracked across these 2,136 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 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.