Company lists · Data refreshed September 2026
Top 25 Private equity add-on advisors based in the United Kingdom
RevenueBase identified 360 private equity add-on advisors headquartered in the United Kingdom as of September 2026 and tracks 2,741 professional contacts across them, including 1,365 with verified work emails. London is the largest hub.
This list covers private equity add-on advisors 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 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.
The 25 largest private equity add-on advisors based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 384 contacts → | ||||
Partial evidence “Clearwater is an independent corporate finance house focused on unlocking the latent potential in every business.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 214 contacts → | ||||
Strong evidence “Inflexion is a leading European mid-market private equity firm with €20bn under management investing in high growth, entrepreneurial businesses with ambitious management teams and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 79 contacts → | ||||
Indirect evidence “We are SI Global.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 71 contacts → | ||||
Strong evidence “Alysian is a boutique advisor dedicated to technology and digital enabled value creation for private equity firms and their portfolio companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 48 contacts → | ||||
Partial evidence “Arrowpoint Advisory is the dedicated mid-market advisory team of Rothschild & Co in the UK.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 47 contacts → | ||||
Partial evidence “Torch Partners is a leading M&A and private capital markets adviser to the Digital Infrastructure, Software and Technology sectors.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 45 contacts → | ||||
Indirect evidence “Three practice areas built for the demands of PE, family offices, asset managers, investors and portfolio businesses.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 42 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 41 contacts → | ||||
Partial evidence “For over 30 years, HMT has been a leading independent corporate finance advisor with an exceptional track record of completing transactions and supporting ambitious…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 40 contacts → | ||||
Indirect evidence “MAXIMISING VALUE.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 36 contacts → | ||||
Partial evidence “Hilton Smythe is a strategic advisory and finance firm, supporting owner‑managed SMEs and entrepreneurs through the most important decisions of their business journey, whether…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 32 contacts → | ||||
Strong evidence “AlphaSkill is a specialized Private Equity Advisory & Executive Search Firm.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 29 contacts → | ||||
Strong evidence “Skill Capital works with world-class executives and large-cap private equity investors including buyout, pension funds and sovereign wealth.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 26 contacts → | ||||
Strong evidence “Greco Advisors is a specialist private equity search and advisory firm, dedicated to the value creation and portfolio operations ecosystem.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 25 contacts → | ||||
Indirect evidence “Upliift partners with founders of European B2B software companies with €1-25m in revenue considering a full or partial exit in a way that’s right for them and their business.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 25 contacts → | ||||
Partial evidence “PCB Partners is a mergers & acquisitions advisory firm rooted in entrepreneurial culture, serving only the digital first economy.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 24 contacts → | ||||
Partial evidence “Chelsea Corporate is a London based buy-side M&A advisory firm.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 24 contacts → | ||||
Strong evidence “Convex is the UK’s leading sell-side only M&A advisor, with unrivalled expertise in advising entrepreneurs, founders, and owner managers on maximising their equity value through…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 23 contacts → | ||||
Partial evidence “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.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 23 contacts → | ||||
Indirect evidence “We help UK business owners realise the value of what they have built – whether that means a full sale, a partial exit, or bringing in investment to fund the next stage of growth.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 19 contacts → | ||||
Partial evidence “25 years in business, BY-Consulting delivers equity solutions to SMEs.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 18 contacts → | ||||
Partial evidence “Breeze is a UK based corporate finance boutique with a real focus on entrepreneurs and owner managers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 18 contacts → | ||||
Indirect evidence “Spencer House Partners LLP was established in London in 2005.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 18 contacts → | ||||
Indirect evidence “Release the full power of your business Are you preparing for a sale, modernising core systems or building capabilities to make your strategy stick?” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 17 contacts → | ||||
Indirect evidence “The GS Verde Group are business-focused experts in getting deals done Law - Finance - Tax - Communications We support business owners with mergers & acquisitions, raising…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: private equity add-on advisors. 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 private equity add-on advisors.
- Partial evidence
- Its own public description names part of private equity add-on advisors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name private equity add-on advisors. 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 360 private equity add-on advisors based in the United Kingdom
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Private equity add-on advisors based in the United Kingdom at a glance
As of Sep 29, 2026Companies by employee count
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 360 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 private equity add-on advisors, 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 “private equity add-on advisors”. 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 private equity add-on advisors), 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 private equity add-on advisors, 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, 1,365 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.
Private equity add-on advisors by metro
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 private equity add-on advisors, 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 private equity add-on advisors are there based in the United Kingdom?
RevenueBase identified 360 private equity add-on advisors 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?
Clearwater, headquartered in London, tops this list with the largest team on record.
Which city has the most private equity add-on advisors?
London leads with 234 headquartered companies, followed by Birmingham (10) and Bristol (6).
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 1,365 verified decision-maker contacts tracked across these 360 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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Private equity add-on advisors by geography
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- Private equity add-on advisors based in Mumbai, India
- Private equity add-on advisors based in Madrid, Spain
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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.
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