Who to hire
UK deal sourcing providers, compared.
The UK deal sourcing providers worth shortlisting are not the ones that come up first, because most of those are databases. DealSource Systems wrote this page and DealSource Systems is one of the firms on it, which belongs in the first line rather than a footnote. Every claim about another firm is quoted from that firm's own live site, read on 23 September 2026.
Ask who the UK deal sourcing providers are and you mostly get software: Grata, PitchBook, Sourcescrub, Cyndx. Those are databases. They find companies, and somebody on your side still has to work the list. This page is about the other thing, the firms that will actually run owner outreach for a UK mandate, and it separates the ones based here from the ones that simply take UK work.
Who is actually based in the UK
Ascent Target is the clearest UK-headquartered specialist. Their own site says "Deal Origination, also known as Deal Sourcing, Acquisition Sourcing and M&A Sourcing is what we do", that they work with "private equity firms and corporate acquirers across Europe, North America and Australia", and that "Our primary data and operational coverage is across UK & Europe, North America and Australia." They are "headquartered at 167-169 Great Portland Street, 5th Floor, London" and claim "access to over 23 million private companies via our proprietary and company subscription databases". No pricing is published.
Their stated scope runs past sourcing into the process itself: target idea generation, document production, target outreach, "Request for Information (RFI) diligence" and "Process & key relationships management: from the start to completion". If you want one firm from longlist to completion, that is the shape of it.
Who takes UK mandates from abroad
Most of the named firms in this category are American, which matters less than people assume for outreach and more than people assume for context.
- CAPTARGET is the longest-running, on a flat monthly subscription with, in their words, "No success fees, ever." Now part of SourceCo.
- SourceCo works both sides of the table and has acquired CAPTARGET.
- TruSight brings a large intermediary network and on-market coverage alongside off-market outreach.
- Konverrt runs 90-day pilots for sell-side advisors and lower middle market PE, with "No invoice until your first two qualified meetings are on the calendar" and "One firm per vertical".
- OutSearched embeds business development under your own brand and runs buy-side advisory through to LOI.
- Harvey & Company does buy-side acquisition search for funds and corporates, publishing "over 1,300 buy-side transactions, including 151 in 2025" since founding in 1998.
DealSource Systems, ours, is the origination arm of Danish Lead Co, which is based in Aarhus, Denmark and has run outbound for UK and European mandates since 2021. We run origination as a standing function on one or two theses, from $4,000 a month with no success fee, and an operator with deal experience reviews every message before an owner sees it. Our published origination benchmarks include the parts that do not flatter us.
What Companies House actually changes
This is the part that makes a UK mandate a different job from an American one, and it rarely appears in a vendor pitch.
Every UK company files at Companies House, and the filings are public and free. You get the registered office, the officers, the persons with significant control, the charges registered against the company, and annual accounts. For a lower middle market target that means you can establish who actually owns the business, whether ownership has recently changed, whether there is debt secured against it, and roughly how big it is, before anyone writes a word to the owner.
In the United States none of that is reliably public. Ownership is opaque, filings are state by state, and most private company data is inference sold back to you by a platform. The practical consequences for a UK programme:
- 1. Targeting should be built on filings, not on a database's guess. A UK list assembled without PSC data is doing avoidable work, and it produces approaches sent to the wrong person.
- 2. Ownership changes are a timing signal you can see. A new PSC, a resignation, a charge satisfied: each is dated and public.
- 3. Size filters can be real. Accounts, even abbreviated ones, beat a platform's estimated revenue band.
- 4. Any provider should be able to tell you which of these they use. If a firm cannot say how it treats Companies House data, it is running a US playbook on UK companies.
Where this sits next to the rest of the category
If you are still deciding between building the function and buying it, the in-house versus outsourced comparison sets out the real costs on both sides, and the hybrid model covers the split that most funds end up at. For the firms themselves, our comparison of deal origination firms takes each one in turn, including Konverrt, Harvey & Company and the data platforms like Grata. If your mandate is add-on rather than platform, buy-and-build sourcing is the closer read, and retainer versus success fee sets out what each model costs you.
How to choose, in the order that matters
Decide whether you are buying coverage or conversations. A database is coverage. A done-for-you firm is conversations. Funds get this wrong in both directions and end up paying for a licence nobody works, or for outreach against a universe nobody mapped.
Ask who speaks to the owner. In this category the answer ranges from a US-based calling team to an offshore SDR to a named operator with deal experience. For a first approach to a UK owner about the biggest financial decision of their life, the answer matters more than the price.
Get the fee model in writing before the pilot. Retainer, success fee, or both, and what happens at the end of the term. Most firms here publish no pricing at all, so compare what you are told, not what you assume.
Ask what happens to the list when you leave. Who owns the sourced company list, the research notes and the contact records. Get it in the contract, not the sales call.
Frequently asked questions
Who are the UK deal sourcing providers for private equity?
Among UK deal sourcing providers, Ascent Target is the clearest UK-headquartered specialist, based in London with stated coverage across UK and Europe. The rest of the firms usually named are US companies that take UK mandates: CAPTARGET, SourceCo, TruSight, Konverrt, OutSearched and Harvey & Company. DealSource Systems, which publishes this page, is the origination arm of Danish Lead Co in Aarhus, Denmark and runs UK and European mandates. Grata, PitchBook, Sourcescrub and Cyndx are data platforms rather than providers of the work.
Does it matter whether the provider is based in the UK?
Less than it used to for the outreach itself, and more than people think for the data. Email and calls do not care where the team sits. Companies House does: a provider that builds UK lists from filings and the PSC register works from public fact, while one applying a US playbook works from a platform's estimate. Ask which they do.
What does UK deal sourcing cost?
Most firms publish nothing, so the honest answer is that you have to ask. Ours is published: from $4,000 a month for a single thesis, and $8,000 and above for a dedicated multi-thesis mandate, with no success fee. Success-fee models exist in this category and change the incentives, so establish which one you are buying before a pilot.
Is off-market outreach to UK business owners compliant?
Business-to-business email to a corporate address sits under UK GDPR and PECR, and the practical requirements are an identifiable sender, a lawful basis, and an easy opt-out that is honoured. It is not the same regime as consumer marketing. Any provider should be able to explain their basis and show you the opt-out handling before launch.
How long before a UK mandate produces owner conversations?
Mapping and infrastructure take roughly three weeks. Once sending starts, our own PE and M&A mandates see a median 1.5 hours to an interested owner's reply, and a new campaign gets its first positive reply about a day and a half after its first email. What varies far more than the channel is the quality of the list, which is where Companies House earns its place.