Company lists · Data refreshed September 2026

Top 25 Transaction support companies based in the United Kingdom

RevenueBase identified 212 company matches for transaction support companies associated with the United Kingdom as of September 2026 and tracks 1,784 professional contacts across them, including 846 with verified work emails. London is the largest hub.

This list covers company matches for transaction support companies associated with the 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 21, 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 21, 2026 How this list was built
212Companies
1,784Contacts tracked
846Verified emails
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The 25 largest transaction support companies based in the United Kingdom

Ranked by team size
Top 25 of 212 company matches for transaction support companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 21, 2026201-500384 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 21, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-50122 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 21, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5079 contacts →

Exact match

“We are SI Global.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 21, 2026501-1,00071 contacts →

Exact match

“Eight Advisory is an independent advisory firm specialising in transactions, restructuring and transformation.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5042 contacts →

Exact match

“At EOS Deal Advisory, our focus is to provide our clients with targeted advice that focusses on driving future value, leverages evolving technologies, and ensures operational…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchHenley-on-thames, United KingdomHQ recorded Sep 21, 202611-5041 contacts →

Exact match

“For over 30 years, HMT has been a leading independent corporate finance advisor with an exceptional track record of completing transactions and supporting ambitious…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchUnited KingdomHQ recorded Sep 21, 202651-20040 contacts →

Exact match

“MAXIMISING VALUE.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5032 contacts →

Exact match

“Capital and Trust is a leading business intermediary.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 21, 2026n/a32 contacts →

Exact match

“DD Consulting is a boutique consulting house specialising in M&A, integration and separation, taking all those skills into day-to-day business operations.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchBerkshire, United KingdomHQ recorded Sep 21, 202611-5023 contacts →

Exact match

“Kingsbrook was founded in 2015 by the Rebbettes family, the award-winning entrepreneurs behind M&A advisor BCMS, a former Coutts Family Business Of The Year.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5020 contacts →

Exact match

“Evolution Capital is a boutique mid-market M&A and strategic advice firm exclusively serving the technology, media and telecommunications sectors.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5019 contacts →

Exact match

“Ciesco is a London-based leading international M&A advisory firm specialising in the technology, media, healthcare and sustainability sectors.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchBristol, United KingdomHQ recorded Sep 21, 202651-20017 contacts →

Exact match

“The GS Verde Group are business-focused experts in getting deals done Law - Finance - Tax - Communications We support business owners with mergers & acquisitions, raising…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5015 contacts →

Exact match

“LAVA is an M&A advisory firm with a difference.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 21, 20261-1015 contacts →

Exact match

“Michael and Yoel Zaoui established Zaoui & Co.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchManchester, United KingdomHQ recorded Sep 21, 202611-5014 contacts →

Exact match

“Knight Corporate Finance was founded by Adam Zoldan and Paul Billingham in December 2008 with the specific aim of advising businesses and entrepreneurs in the technology telecoms…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 21, 20261-1013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5012 contacts →

Exact match

“Global Venture Partners is an international M&A support services firm focused on making an impact for both national and global clients.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5011 contacts →

Exact match

“We are specialists in technology merger and acquisition (M&A) and business advisory services working from offices in London and Montreal.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5011 contacts →

Exact match

“FCA regulated sell-side M&A Advisory”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5011 contacts →

Exact match

“Dial Partners is an independent corporate finance advisory firm, offering the highest quality advice, from strategy to deal structuring and execution, unlocking the potential…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5010 contacts →

Exact match

“BTD are your trusted partner in M&A.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchSolihull, United KingdomHQ recorded Sep 21, 202611-509 contacts →

Exact match

“At Headpoint we specialise in providing advanced strategy and corporate finance advice to shareholders and management teams of mid-sized private companies on a confidential basis…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-509 contacts →

Exact match

“WY Partners offers specialist M&A and strategic advice to the media and technology industries, supporting ambitious clients throughout their entire journey.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-509 contacts →

Exact match

“No one should question that success in M&A is about making the optimal deal.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 212 transaction support companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 846 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transaction support companies based in the United Kingdom at a glance

As of Sep 21, 2026
47.4%Verified-email coverage
8.4Average contacts per company
1-10Median size (employees)
59.0%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
144
11-50
51
51-200
9
201-500
6
501-1,000
2

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 212 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 the United Kingdom whose business descriptions match “transaction support companies” 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 846 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 21, 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.

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 “transaction support companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many transaction support companies are there based in the United Kingdom?

RevenueBase identified 212 company matches for transaction support companies associated with the 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?

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

Which city has the most transaction support companies?

London leads with 125 company records, followed by Birmingham (8) and Manchester (5).

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 846 professional contacts with verified work emails tracked across these 212 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 21, 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.