Proprietary Deal Sourcing for UK Search Funds and Private Equity
Everyone else sells you a list. This guide is about the other route: finding the UK owner who has quietly decided to sell, and getting to them first — before a broker turns their business into a process.
01. What proprietary really means
A proprietary deal is not simply a deal you found before the auction. It is a deal where the owner recognises you as the buyer who understood their business, their people and their legacy — and chose to transact with you rather than run a process. That distinction changes everything downstream: valuation discipline, deal certainty, working relationship post-close.
In the UK lower mid-market, most owners have never sold a company before. They are not price-maximisers; they are decision-avoiders with a legacy problem. The buyer who removes the friction and dignifies the handover wins — usually at a fair multiple, rarely at the top of the range.
02. The signals that predict a sale
UK filings are richer than most buyers use. Read carefully, they tell you which owners are preparing to exit long before they instruct an adviser. The signals worth tracking:
- Director age past 60. The single strongest predictor of a sale within 24 months, especially when combined with no obvious successor.
- PSC concentration. A single controlling shareholder simplifies every negotiation. Layered PSCs signal a family situation to map before you write.
- Satisfied charges. Debt paid off in the last 12–24 months often precedes a sale — the owner is tidying the balance sheet.
- Filing behaviour. Late filings, switched auditors and abridged accounts each move the exit probability, in different directions.
- Quiet digital presence. Owners preparing to sell rarely relaunch websites or hire heavily. Momentum flattens before it inflects.
No signal is decisive alone. The value is in scoring them together, per company, at national scale — then filtering to the businesses that also fit your thesis.
03. An operating model, not a list
Buyers who source consistently do not have a longer list. They have a shorter list, updated continuously, with a clear next action per name. That requires four things running in the background:
- A live registry feed so score changes surface within days, not quarters.
- A written thesis narrow enough to disqualify most names on sight.
- A single owner per relationship, accountable end to end.
- A weekly cadence: 45 minutes to triage new signals, decide which names to touch this week, and archive the rest with a reason.
Most sourcing failures are cadence failures, not idea failures.
04. Outreach that owners answer
The evidence on owner motivation is consistent: legacy, staff and continuity outrank headline price. Owner-approach letters that lead with valuation get ignored. Letters that lead with what the buyer has noticed about the business — and what they would preserve — get answered.
A good first letter is short, specific and posted, not emailed. It names the business, references one observable fact (a recent contract, a long-tenured GM, a filed document), states the buyer's thesis in a sentence, and offers a call at the owner's convenience. It closes with a signature, not a corporate footer. Half a page.
05. Mapping the Selling Group
Owners rarely decide alone. There is usually a co-shareholder or spouse, a long-standing accountant with more influence than the org chart suggests, and — later — a solicitor. Deals collapse when the buyer engages the owner and surprises the accountant.
Map the Selling Group before you write the first letter: names, roles, likely stance, best channel of approach. Reconfirm at every stage change. This is the single highest-leverage habit in proprietary sourcing, and the one most consistently skipped.
06. From first letter to LOI
Well-run proprietary campaigns convert roughly 1–3% of outbound letters into a first conversation, and roughly 10–20% of first conversations into an LOI. The variance is largely explained by two factors: targeting quality (are you writing to owners who are actually preparing to sell?) and the discipline of the follow-up.
The follow-up is where most buyers lose. A polite second contact 10–14 days later, referencing the first letter, adding one new observation, materially lifts response rates. A third contact via the accountant or a mutual introduction lifts them again. Beyond that, stop and archive with a reason.
07. FAQ
Broker-led flow is a process with defined competition and a known clearing price. Proprietary sourcing is a relationship with a specific owner, negotiated without a formal auction, usually at a fairer multiple and with far higher deal certainty.
Yes — arguably more so than for a fund. Owners often prefer selling to an individual with an operating plan than to a financial buyer. The constraint is cadence and craft, not capital.
In the UK lower mid-market, six to twelve months from first letter to completion is typical. The first letter itself is often a year or more before the owner is emotionally ready to decide.
The intelligence layer behind proprietary sourcing.
Score every UK company for exit readiness, map the Selling Group, and go from first letter to 100-day plan — in one platform.