Company lists · Data refreshed September 2026

Top 25 Mergers and acquisitions advisors based in London, United Kingdom

Name: Mergers and acquisitions advisors based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 1,049 companies tracked

RevenueBase identified 1,049 company matches for mergers and acquisitions advisors associated with London, United Kingdom as of September 2026 and tracks 25,368 professional contacts across them, including 11,953 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for mergers and acquisitions advisors associated with London, United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Sep 20, 2026 How this list was built

1,049Companies

25,368Contacts tracked

11,953Verified emails

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The 25 largest mergers and acquisitions advisors based in London, United Kingdom

Ranked by team size

Top 25 of 1,049 company matches for mergers and acquisitions advisors based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Ey-Parthenon	Exact match	London, United KingdomHQ recorded Sep 20, 2026	10001+	17,070 contacts →
	Exact match “Our unique combination of transformative strategy, transactions and corporate finance delivers real-world value – solutions that work in practice, not just on paper.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	FRP Advisory	Exact match	London, United KingdomHQ recorded Sep 20, 2026	501-1,000	731 contacts →
	Exact match “FRP is a leading national business advisory firm.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	Clearwater	Exact match	London, United KingdomHQ recorded Sep 20, 2026	201-500	384 contacts →
	Exact match “Clearwater is an independent corporate finance house focused on unlocking the latent potential in every business.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	Quantuma	Exact match	London, United KingdomHQ recorded Sep 20, 2026	201-500	277 contacts →
	Exact match “Quantuma is a leading business advisory firm which works with businesses at the key milestones.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	Cavendish	Exact match	London, United KingdomHQ recorded Sep 20, 2026	51-200	211 contacts →
	Exact match “Cavendish is a UK champion for ambitious growth and investment companies.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	CVL	Exact match	London, United KingdomHQ recorded Sep 20, 2026	n/a	165 contacts →
	Exact match “Strategic development for already dynamic businesses, successful mergers & acquisitions between household names, technology planning in cutting edge industries and real-world…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7	GP Bullhound	Exact match	London, United KingdomHQ recorded Sep 20, 2026	51-200	148 contacts →
	Exact match “GP Bullhound is a global technology advisory firm providing expert M&A and growth capital transaction support to the world’s leading innovators, with 100+ professionals and 11…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8	Opus Business Advisory Group	Exact match	London, United KingdomHQ recorded Sep 20, 2026	51-200	144 contacts →
	Exact match “Opus Business Advisory Group is an independent advisory firm that assists clients to achieve their objectives, enhance value and attain the best possible results.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	Athens	Exact match	London, United KingdomHQ recorded Sep 20, 2026	11-50	122 contacts →
	Exact match “Athens helps clients make superior investment decisions and supports them to deliver value from these decisions through timely implementation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	TH Global Capital	Exact match	London, United KingdomHQ recorded Sep 20, 2026	51-200	120 contacts →
	Exact match “TH Global Capital is an award-winning global investment banking firm specializing in sector-focused investment banking and growth advisory services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	Fenchurch Advisory Partners	Exact match	London, United KingdomHQ recorded Sep 20, 2026	51-200	98 contacts →
	Exact match “Fenchurch Advisory Partners is one of the leading independent corporate finance advisory firms in London.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	Valentia Partners	Exact match	London, United KingdomHQ recorded Sep 20, 2026	51-200	94 contacts →
	Exact match “Valentia Partners is a specialist Management Consulting firm.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13	SI Global	Exact match	London, United KingdomHQ recorded Sep 20, 2026	11-50	79 contacts →
	Exact match “We are SI Global.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	Eden Mccallum	Exact match	London, United KingdomHQ recorded Sep 20, 2026	51-200	75 contacts →
	Exact match “We redefined management consulting to make it better for clients and better for consultants.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	Punter Southall	Exact match	London, United KingdomHQ recorded Sep 20, 2026	201-500	72 contacts →
	Exact match “Punter Southall is a group of companies with one aim – helping businesses and people make better decisions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16	Eight Advisory UK	Exact match	London, United KingdomHQ recorded Sep 20, 2026	501-1,000	71 contacts →
	Exact match “Eight Advisory is an independent advisory firm specialising in transactions, restructuring and transformation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	STJ Advisors	Exact match	London, United KingdomHQ recorded Sep 20, 2026	11-50	68 contacts →
	Exact match “STJ distinguishes itself with the leading team of seasoned specialists in Equity Capital Markets.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	Fusion Consulting Group	Exact match	London, United KingdomHQ recorded Sep 20, 2026	51-200	62 contacts →
	Exact match “Fusion is a multi-disciplinary consulting firm that offers 360 degree advisory services and end-to-end solutions for private individuals and fast growth businesses.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19	Collingwood	Exact match	London, United KingdomHQ recorded Sep 20, 2026	11-50	59 contacts →
	Exact match “Collingwood is the only growth, value creation, and M&A advisory that is purpose-built to help information, media, and events businesses create and realise shareholder value.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20	Aream & CO	Exact match	London, United KingdomHQ recorded Sep 20, 2026	11-50	56 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	Jamieson Corporate Finance	Exact match	London, United KingdomHQ recorded Sep 20, 2026	11-50	55 contacts →
	Exact match “We are the leading global, independent management advisory firm, owned and managed by our team of professionals, and operating across an international network of offices.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22	Designhouse	Exact match	London, United KingdomHQ recorded Sep 20, 2026	11-50	49 contacts →
	Exact match “Designhouse is where strategy takes shape.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23	Arrowpoint Advisory	Exact match	London, United KingdomHQ recorded Sep 20, 2026	51-200	48 contacts →
	Exact match “Arrowpoint Advisory is the dedicated mid-market advisory team of Rothschild & Co in the UK.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24	Torch Partners	Exact match	London, United KingdomHQ recorded Sep 20, 2026	51-200	47 contacts →
	Exact match “Torch Partners is a leading M&A and private capital markets adviser to the Digital Infrastructure, Software and Technology sectors.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25	Pmsi Strategy	Exact match	London, United KingdomHQ recorded Sep 20, 2026	11-50	45 contacts →
	Exact match “PMSI is a management consulting firm specialising in commercial due diligence, market intelligence and strategy consulting.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “mergers and acquisitions advisors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 1,049 mergers and acquisitions advisors based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 11,953 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Mergers and acquisitions advisors based in London, United Kingdom at a glance

As of Sep 20, 2026

47.1%Verified-email coverage

24.2Average contacts per company

1-10Median size (employees)

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

734

11-50

244

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,049 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with London, United Kingdom whose business descriptions match “mergers and acquisitions advisors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 11,953 professional contacts with verified work emails across the full matched dataset. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Mergers and acquisitions advisors by metro in the United Kingdom

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “mergers and acquisitions advisors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many mergers and acquisitions advisors are there based in London, United Kingdom?

RevenueBase identified 1,049 company matches for mergers and acquisitions advisors associated with London, United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Ey-Parthenon tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most mergers and acquisitions advisors?

London leads the United Kingdom with 1,049 company records, followed by Manchester (43) and Birmingham (32).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 11,953 professional contacts with verified work emails tracked across these 1,049 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 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 SmartSearch, 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.