How to Spot an Acquisition Target: The 9 Signals That Reveal an Attractive Deal
Plimsoll's 9-point Acquisition Score — what to look for, and why each signal matters
TL;DR: The best acquisition targets share a recognisable financial and structural profile. Plimsoll's Acquisition Score is a 9-point checklist, one tick for each criterion a target meets, built around the patterns that separate a deal worth pursuing from a deal worth walking away from. This guide walks through all nine signals, explains the underlying M&A logic behind each, and shows how to use the score to filter an industry of 1000 companies down to the ten worth a phone call.
Most M&A search processes fail in the same way. Buyers start with a target list of 1600 companies in a sector, send introductory letters to all of them, and end up in conversations with the wrong ones, the businesses willing to sell rather than the businesses worth buying.
The trick is to invert the process. Filter on the structural and financial profile of the target before you spend money on outreach. A short, well-qualified shortlist beats a long unqualified one every time.
That's what the Plimsoll Acquisition Score is designed to do. Nine criteria. One tick for each criterion met. Companies that score 7, 8 or 9 out of 9 are statistically far more likely to be (a) sellable, (b) sellable at an attractive multiple, and (c) worth more to a strategic acquirer than to their current owners.
Below is what each of the nine signals means, why it matters, and what "good" looks like in the wild.
1. Sales growth above the industry average
The first signal is the simplest. Is the target growing faster than the industry around it?
A target that is gaining share in a flat or declining market is genuinely worth more than one that is merely riding the cycle. It has something real, a product, a contract base, a sales motion, a geographic position, that competitors don't. That "something" is exactly what an acquirer is paying for.
Sales growth below the industry average is not a deal-killer, but it changes the price you should pay. Outperformance, by contrast, is almost always under-valued by the seller, because owner-managers tend to compare themselves to last year's number rather than to the peer group.
What good looks like: Sales growth at least 1.5x the industry average for two consecutive reporting years.
2. A low Plimsoll Financial Rating
This is the one most buyers get wrong. A low rating, Caution or Danger on the Plimsoll Model, is the opportunity signal, not the warning signal.
A high-performing, strongly-rated business is rarely for sale, and when it is, it sells at the kind of multiple that erodes the acquirer's returns from day one. A weaker rating, on the other hand, signals an owner under pressure, a board willing to consider offers, and, crucially, a business where the new owner can drive a step change in performance by removing the constraints (cost base, management bandwidth, capital starvation) that produced the rating in the first place.
The point of the Plimsoll Model in an acquisition context is not to avoid the Danger-rated companies. It is to find the ones where the underlying trading position is sound but the financial position has slipped, because that is where the value creation runway is longest.
What good looks like: A Caution or Danger rating from a target whose top-line is still growing and whose gross margin is intact.
3. High gross earnings
Net profit is what the company chooses to report. Gross earnings, broadly, gross profit before owner discretion kicks in, is what the business actually generates.
In owner-managed businesses, the gap between the two is often substantial. Salaries, pensions, family members on the payroll, lease cars, "consultancy" arrangements, and discretionary marketing spend all sit between gross profit and reported net profit. A strategic acquirer will strip much of this out post-deal, and the resulting earnings uplift goes straight into the price they can justify paying.
A target with high gross earnings and modest reported net profit is therefore worth far more than a target with thin gross earnings and tidy net profit. The first has hidden upside. The second has none.
What good looks like: Gross earnings (gross profit) in the top half of the industry, even where reported pre-tax profit is unremarkable.
4. Low number of shareholders
Deals die in the shareholder register.
A target with two or three shareholders can close in 90 days. A target with 30 shareholders, minorities, ex-employees with EMI options, a former founder still holding 4%, a family trust with conflicting beneficiaries, can take 18 months, if it closes at all. Each additional shareholder adds drag-along clauses, tag-along clauses, separate tax advice, separate legal advice, and another set of expectations to manage.
Acquirers consistently underweight this signal early in a search and then over-weight it when they're trying to close. Better to filter for it upfront.
What good looks like: Three or fewer shareholders, or a single majority shareholder controlling more than 75% of the equity.
5. A big gap between current and future value
The Plimsoll valuation looks at where a company sits today on a peer-group P/E basis, and where it would sit at a more normalised performance level. The bigger the gap, the more value an acquirer can create simply by closing it.
This signal is about headroom. A target valued in line with its potential is fairly priced and offers a market return. A target valued well below its potential, because of a weak year, a temporary cost shock, a balance-sheet issue, or simply because the owner has stopped reinvesting, offers a different kind of return entirely.
This is one of the strongest predictors of post-deal IRR in Plimsoll's data. Buyers who consistently outperform on returns are buyers who consistently buy below the future-value line.
What good looks like: A future-value estimate at least 50% above the current Plimsoll valuation.
6. Directors' fees as a high proportion of profits
Few signals are more reliable. Where directors' fees account for a meaningful share of reported profits, the target is almost certainly owner-managed, and the reported earnings are almost certainly understated relative to what a strategic owner would extract.
This is the classic add-back that EBITDA-based valuations are built on. A founder paying themselves £400,000 plus a £200,000 bonus from a £900,000 reported profit looks like a marginal business. A new owner running the same business with a £150,000 hired-in MD has a £1.45m business, and pays accordingly.
The Plimsoll Acquisition Score flags this directly because it is one of the most consistent sources of hidden upside in the lower-mid market.
What good looks like: Directors' remuneration above 20% of pre-tax profits in the most recent filed accounts.
7. High average age of the directors
This is the succession signal. A board with an average age in its late 50s or 60s is a board that is, on average, closer to a liquidity event than one in its 40s.
Founders sell for two reasons: a pull (an offer they can't refuse) and a push (retirement, health, family pressure, fatigue). The push is more reliable than the pull, and age is the most visible predictor of it.
Acquirers who systematically track director age across a target list often spot the right moment to approach a founder months before competing bidders even realise the business is in motion.
What good looks like: An average director age above 60, or a key controlling shareholder approaching retirement.
8. The company is privately owned
Listed targets carry visible price tags, competing bidders, regulatory drag, and a market expectation about what fair value looks like. Private targets, particularly owner-managed ones, do not.
Private ownership generally means: less competition for the deal, more flexibility on deal structure (earn-outs, deferred consideration, rolled equity), more discretion on diligence access, and a price discovery process driven by the owner's expectations rather than by an analyst consensus.
Strategic acquirers consistently earn higher post-deal returns in the private market than the public one. The Acquisition Score reflects that.
What good looks like: A privately held company with no recent rumoured sale process or competing approach.
9. A low number of directors
A board of three is faster, more decisive, and more sellable than a board of nine. Fewer directors usually correlates with founder-led decision-making, leaner overheads, fewer entrenched positions to manage in negotiation, and a simpler integration after close.
It is also a proxy for the type of business an acquirer can actually digest. A target with a 12-person board and matching layers of management is often a target an acquirer can buy but cannot integrate. A target with three directors and a tight operating team typically integrates inside 12 months.
What good looks like: Three or fewer directors, ideally with one or two of them being the principal shareholders.
Putting the nine signals together
The Acquisition Score is deliberately binary. Each signal is either present or it isn't. One tick per signal. Nine ticks possible.
A target scoring 0-3 is almost never the right deal. The pricing will be wrong, the seller will be unwilling, or the value creation runway will be too short.
A target scoring 4-6 is in the discussable zone. It may be the right deal if the strategic logic is overwhelming, but the score won't be doing the work for you, the thesis will need to.
A target scoring 7-9 is where deals actually happen. The score is not predicting a company will sell. It is predicting that, if you approach correctly, the structural conditions for a deal at an attractive price are in place.
For most acquirers, the practical use of the Score is as a ranking tool. Run it across the entire industry. Sort descending. Start the outreach process at the top of the list.
Common mistakes acquirers make
Buying on growth alone. A fast-growing target with five of the other eight signals missing is almost always overpriced. Growth is necessary, not sufficient.
Avoiding Caution-rated companies. Most acquirers see a weak financial rating and walk away. The Acquisition Score is built on the opposite view: a weak rating in an otherwise sound business is the single most reliable value-creation opportunity in the lower-mid market.
Ignoring the board. Director age and director count are the cheapest, most public, and most predictive data points in M&A, and the ones acquirers most consistently overlook.
Approaching too early or too late. A target that scores 4 out of 9 today might score 7 in 18 months when a director retires or a financial rating slips. The Score is a snapshot. The discipline is to re-run it regularly across the same target list.
FAQ
What is the Plimsoll Acquisition Score?
The Plimsoll Acquisition Score is a 9-point checklist used to rank companies in an industry by how attractive they are as acquisition targets. Each criterion either applies or it doesn't, and the total score (0 to 9) gives a single, comparable measure of acquisition appeal across an entire sector.
What are the nine criteria?
Sales growth above the industry average; a low Plimsoll financial rating; high gross earnings; a low number of shareholders; a large gap between current and future Plimsoll valuation; directors' fees as a high proportion of profits; a high average age of directors; private ownership; and a low number of directors.
Why is a low financial rating considered attractive?
Because it correlates with both seller willingness and post-deal value-creation potential. Strong businesses rarely sell at attractive multiples. Weaker-rated businesses, particularly those whose underlying trading remains sound, offer the longest runway for an acquirer to add value.
How do directors' fees affect the valuation?
In owner-managed targets, directors' remuneration often suppresses reported profit. Once the new owner replaces founder pay with a market-rate hired-in management cost, the run-rate earnings, and therefore the deal value — rise materially. The Score flags this directly.
How can I see the Acquisition Score for a specific industry?
Plimsoll publishes more than 200 UK industry analyses. Each one includes the Acquisition Score for every significant company in the sector, alongside the full financial rating, current and future valuation, and detailed financial profile. Sector reports are available on request.
Is the Acquisition Score predictive of completed deals?
The Score is best understood as a screening tool, not a forecast. It identifies the targets whose structural and financial profile makes them more likely to come to market on attractive terms, not the ones guaranteed to do so. Used as an outreach prioritisation tool, it consistently produces a higher hit rate than unfiltered industry lists.
Methodology: Plimsoll Acquisition Score, May 2026. Each of the nine signals is scored as a binary tick against every significant company in the industry, using the most recently filed statutory accounts and Companies House data..