Buyers run a short, consistent list of screens on every company they look at: size and margin relative to their minimum check, the trend in revenue and earnings, how much of the top line rides on one customer, how much revenue is contracted versus one-time, and whether the business would survive the owner's departure. Consider two otherwise identical companies with $2 million of EBITDA: one with a single customer at 35 percent of revenue is a different opportunity than one with no customer above 8 percent, before anyone even discusses price. What follows is the checklist buyers actually use, how it differs by buyer type, and the thresholds and red flags that show up in published deal data rather than seller folklore.
The 10 Things Every Buyer Checks First
Before a buyer commits real time or diligence money, it runs a target through a mental filter. The list below is roughly the order buyers apply it, from the numbers that decide whether they open the data room to the qualitative read that decides what they are willing to pay once they are inside it.
- EBITDA size relative to the buyer's minimum check. Institutional buyers set a floor below which a deal isn't worth the diligence cost, and that floor decides which buyer types can even bid.
- Margins against industry peers. Below-average margins read as either mispriced or structurally weaker, and buyers ask which before they ask how much.
- The multi-year revenue and earnings trend. A single strong year means little; buyers want several years pointing the same direction, since that is what their own models get built on (see how buyers model your business).
- Customer concentration. The share of revenue tied to the largest account is one of the fastest ways a buyer reduces a company to a single number.
- The share of recurring or contracted revenue. Revenue likely to repeat is worth more, dollar for dollar, than revenue that must be won again next quarter.
- Owner dependence. Whether the business runs, sells, and collects without the owner in the building is tested indirectly throughout diligence, not asked outright.
- Management depth below the owner. A second layer of leadership that can answer for the numbers and the plan on its own is one of the clearest signals of a transferable business.
- Quality and defensibility of the financials. Every add-back needs a paper trail; an adjustment nobody can document gets removed, and removed earnings lower the price.
- Documented systems, contracts, and IP ownership. Assignable agreements and processes that live on paper rather than in the owner's head reduce what a buyer has to take on faith.
- Industry tailwind or headwind. A buyer underwrites the years after closing, so whether the sector is growing, flat, or under structural pressure shapes both price and how many buyers show up.
No single item is disqualifying by itself; what moves price and terms is how many of the ten a company clears, and how well the seller can document the ones it does. The sections below cover the quantitative and qualitative versions in more depth, then how buyer type changes the weighting, then the specific findings that stop a deal outright.
How Each Buyer Type Weighs the Checklist Differently
The ten screens are not applied uniformly. Each buyer type solves a different problem with the acquisition, so the same company can look like a strong fit to one and a pass to another. The table below summarizes what each optimizes for, where they cluster by size, what kills the deal for them, and what earns a premium; for the fuller map, see who buys lower-middle-market companies.
| Buyer type | What they optimize for | Typical size range | What kills the deal for them | What earns a premium |
|---|---|---|---|---|
| Private equity | Cash flow stable enough to lever, plus a repeatable growth playbook | Platforms often need scale above a fund's minimum check, commonly low single-digit millions of EBITDA and up; add-ons can be smaller once folded into a platform | Earnings too volatile or owner-dependent to safely support debt; undocumented add-backs | Management depth and contracted revenue that support more leverage and faster paydown |
| Strategic acquirer | Cost and revenue synergies from folding the target into an existing operation | Varies with the acquirer's own scale; driven by strategic fit, not a fixed EBITDA floor | Integration risk, or confidentiality exposure if the deal does not close | A specific capability, customer base, or geography that closes a gap in its own footprint |
| Search fund / ETA buyer | One business the searcher can personally run as CEO, financed largely with debt | Roughly $1.5M to $5M EBITDA traditionally; Stanford's 2024 study found a median purchase price in the mid-teens of millions at about 7x EBITDA | Owner dependence too deep for a first-time operator, or a niche requiring expertise the searcher lacks | Recurring revenue, a stable fragmented industry, and modest concentration a new operator can manage |
| Family office | Long-hold or indefinite ownership using the family's own capital, no fund exit clock | No fixed range; set by the family's own risk appetite, not a fund's minimum check | A deal that requires leverage the office won't use, or governance it can't get comfortable with long-term | Continuity: a lower headline price traded for a longer transition or continued founder involvement |
| Independent sponsor | A specific deal compelling enough to raise acquisition equity after the letter of intent | Sized to what the sponsor's capital partners will underwrite for that one deal; no fixed range | An equity raise that stalls between signing and closing | Clean, diligence-ready financials and a credible team that make the raise faster |
| Individual / SBA buyer | Cash flow that personally supports the buyer's income and debt service, underwritten by a lender | Bounded by SBA 7(a) limits: each loan caps at $5M, so total project cost must fit that loan plus the buyer's equity injection | A lender's independent valuation coming in below the agreed price, or unverifiable financials | Clean, bank-verifiable cash flow, since SBA rules fix price at closing and forbid earnouts |
The financing mechanics behind the SBA row get their own treatment in SBA 7(a) financing in business acquisitions. Before a first conversation with an institutional buyer, it helps to know what the other side typically asks; see what private equity firms ask in a first meeting.
The Quantitative Screens: EBITDA, Margin, Growth, Concentration, Recurring Revenue
Quantitative screens are the ones a buyer can apply from financial statements before ever meeting the owner. They are blunt instruments, but they decide which companies get a second look.
EBITDA floor
Every buyer type has an effective floor below which a deal isn't worth pursuing. Search funds traditionally target roughly $1.5 million to $5 million of EBITDA, a range widely repeated across search-fund and business-broker guidance rather than a figure from any single study. Stanford's 2024 Search Fund Study, which tracks realized acquisition outcomes rather than a stated target range, separately found a median EBITDA of roughly $2.2 million and a median purchase price near $14.4 million at about 7.0x EBITDA among completed search-fund acquisitions. Private equity funds commonly set a minimum platform threshold in the low single-digit millions of EBITDA and up, though — like the size bands below — no single published figure holds across every fund and strategy; companies below that line draw mostly individual, SBA-financed, or search-fund interest, a pattern explored in why valuation multiples rise with company size. That article documents the size premium: businesses under roughly $1 million of earnings often around 2x to 4x, typically on seller's discretionary earnings, with multiples generally rising through the middle market — several valuation and advisory sources put $1 million to $3 million EBITDA in roughly the 4x to 6x range and $3 million to $5 million-plus EBITDA in roughly the 6x to 8x range, though the exact bands vary by source and industry — and core middle-market, PE-sponsored deals ($10 million to $500 million enterprise value) averaging roughly 7x to 7.5x adjusted EBITDA, per GF Data.
Margin and growth
Buyers compare margins to sector peers rather than to one absolute threshold, since acceptable margin varies enormously by industry; below-peer margins get treated as a risk to underwrite, not just a smaller number to multiply. Growth gets the same trend-not-snapshot treatment: a multi-year run of durable EBITDA growth is one factor that can move a company into a higher size band and a wider buyer pool, per the size-premium research above, while a single strong year on an otherwise flat trend is usually discounted as an outlier. Neither screen reduces to one published number across industries, so treat any margin or growth "target" quoted online as a general, sector-dependent range rather than a rule.
Customer concentration
This is one of the most consistently quantified screens on the list. There is no statutory threshold, but published advisory guidance converges on a working set of bands: several M&A advisory sources put detailed buyer review starting once any customer passes 20 percent of sales, with significantly more buyers declining outright above 30 percent, and cite a valuation reduction of roughly 20 to 35 percent for heavily concentrated companies versus comparable diversified peers — directional figures drawn from multiple advisory sources rather than one formal study. Full picture, including how concentration reshapes earnouts and escrows, in customer concentration and deal terms.
Recurring or contracted revenue
Buyers separate revenue into contractual, repeat, and one-time tiers and price each differently, crediting contracted, transferable revenue the most because it is documented and survives a change of ownership. Where a net revenue retention (NRR) figure exists, below 100 percent signals leakage, roughly 100 to 110 percent is commonly described as healthy, and above 120 percent as premium territory. Software companies specifically are frequently discussed in a range of roughly 3x to 7x annual recurring revenue, a sector-specific, directional range rather than a rule. More in the recurring-revenue premium in business valuation.
Owner dependence
Buyers test this indirectly: management meetings held without the owner, revenue attributed by relationship owner in the CRM, whose signature is on contracts, and customer reference calls late in diligence. SRS Acquiom's deal-terms data shows earnouts appeared in 24 percent of private-target deals outside life sciences in 2025, up from 19 percent in 2014, and an earnout is the most common way a buyer converts owner-dependence doubt into seller risk. Mechanics and fixes are in owner dependence: how buyers test it and how to fix it.
Capex intensity
Buyers estimate deferred capital expenditures, meaning postponed equipment replacements and facility repairs, because deferred capex is effectively a hidden addition to the purchase price once the buyer has to fund it after closing. No published capex-to-revenue threshold holds across industries; the screen is comparative, benchmarking actual spending against what equipment condition implies it should have been, and against sector peers.
The Qualitative Screens: Management, Books, Systems, Tailwind
Once the numbers clear a buyer's initial filter, the qualitative read decides how much confidence the buyer has that the numbers hold up after closing.
Management depth
A buyer wants someone who owns operations, someone who owns revenue, and someone who owns the numbers, each able to run their area for a quarter without the owner present. Titles do not survive diligence; authority does. Buyers can often tell early in an unaccompanied management meeting whether a leadership team decides things or merely presents things, a distinction covered at length in management depth and owner dependence.
Clean, defensible financials
Every buyer commissions or reviews a quality of earnings (QoE) analysis, an accountant's study of whether reported EBITDA reflects the sustainable run rate of the business. The QoE team ties revenue to bank deposits and challenges every add-back; one without documentation gets rejected, and a rejected add-back lowers the price directly. Sellers who commission their own sell-side QoE find these issues on their own timeline instead of the buyer's; the full breakdown is in what buyers examine in due diligence.
Documented systems, contracts, and tailwind
Buyers want processes that exist on paper rather than in the owner's head, and contracts that clearly assign IP and survive a change of ownership; a single poorly drafted clause can hand a customer or landlord leverage over the whole deal, as explained in contracts that scare buyers. Sector trajectory matters too: the same growth rate reads very differently inside a shrinking industry than inside one with structural demand behind it.
Red Flags That Stop a Process Outright
Some findings do not just lower the price; they end the deal. Axial's 2025 Dead Deal Report, analyzing 75 lower-middle-market deals that died after a signed letter of intent, found non-QoE diligence findings (undisclosed legal or compliance problems, customer concentration, contract issues) the single leading cause at 25.3 percent, followed by QoE-driven EBITDA discrepancies at 21.3 percent; one deal in that sample surfaced discrepancies of roughly $265,000 to $594,000 against the marketed figure. The most common red flags cluster around a short list:
- Customer concentration. A dominant account above roughly 20 to 30 percent of revenue narrows the buyer pool on its own, and above 30 to 40 percent many buyers pass entirely; see customer concentration and deal terms.
- Undocumented add-backs. An EBITDA adjustment that cannot be tied to an invoice, payroll record, or contract gets removed in diligence, which directly lowers the multiple's base.
- Key-person risk. A business where the owner is the primary contact on the largest accounts, the only signature on major contracts, and the only person who can explain a bad month reads as fragile regardless of how strong its financials look.
- Undisclosed litigation. Pending or threatened lawsuits surface in legal diligence; found late, they read as a credibility problem beyond the dollar amount at stake.
- Environmental exposure. Where real estate or manufacturing is involved, buyers commission a Phase I Environmental Site Assessment under the ASTM E1527-21 standard; a compliant Phase I preserves defenses to federal cleanup liability under CERCLA, and flagged concerns lead to a costlier Phase II with soil or groundwater sampling.
- Deferred maintenance. Postponed equipment replacement and facility repair function as a hidden addition to the buyer's effective price once it has to fund the backlog after closing.
- Related-party arrangements. Leases or supply agreements between the company and the owner's other entities get flagged for legal and tax review, since a buyer needs to know whether pricing is arm's-length or will change once the related party is out of the picture.
Issues that do not kill a deal outright still cost money. SRS Acquiom's lower-middle-market data shows virtually all such deals carry at least one escrow, with a median general indemnification escrow of 12.5 percent of transaction value, and more than a third of lower-middle-market buyers insist on an earnout on top of that. None of this is punitive; it is how a buyer converts a risk it cannot fully verify before closing into a term it can live with. A fuller breakdown of how findings translate into price cuts, escrows, and structure is in buyer due diligence: what acquirers examine.
What to Do With This List Before You Go to Market
Nearly every real company clears some screens and falls short on others; the outcome turns on whether the seller finds the gaps before a buyer does, and can document the strengths well enough that a buyer credits them fully instead of discounting for lack of proof. An exit-readiness checklist for owners one to three years out covers financial hygiene, add-back documentation, and concentration reduction on a realistic timeline, since most fixes take quarters, not weeks. Once offers arrive, these same screens reappear in how buyers structure price versus earnout versus escrow, covered in evaluating competing offers.
One option in this space, Bankerly, is built around this list: it produces a quality of earnings analysis, a projection model, a confidential information package and teaser, an NDA workflow, buyer matching across the categories above, managed Q&A, and a virtual data room, so a lower-middle-market company can be presented to institutional and individual buyers on consistent, defensible terms.
Anything valuation-related here, including the multiple ranges and size bands cited above, is an educational estimate rather than a formal appraisal, and any specific business's value depends on its own diligence findings, deal structure, and market conditions. This article is general educational information, not legal, tax, or financial advice; consult your own qualified attorney and CPA.
Frequently asked questions
- What do buyers look for when buying a business?
- Buyers screen for EBITDA size relative to their minimum check, margins and multi-year growth versus peers, customer concentration, the share of recurring or contracted revenue, and whether the business would survive the owner leaving. They then look qualitatively at management depth, the defensibility of the financials, documented systems and contracts, and whether the industry is growing or shrinking. No single factor is disqualifying; the number and severity of gaps drive price and deal structure.
- How much customer concentration is too much for buyers?
- There is no legal limit, but published M&A guidance converges on 20 to 30 percent of revenue from one customer as the zone where buyers start discounting price and adding structure. Several M&A advisory sources describe detailed buyer review starting above 20 percent and significantly fewer buyers proceeding above 30 percent, with an estimated valuation reduction of roughly 20 to 35 percent for heavily concentrated companies versus diversified peers. These are directional, educational estimates rather than a formal valuation input for any specific company.
- What is the biggest red flag that kills a deal in due diligence?
- Axial's 2025 Dead Deal Report, covering 75 lower-middle-market deals that broke after a signed letter of intent, found non-QoE findings such as undisclosed legal or compliance problems, customer concentration, and contract issues were the leading cause at 25.3 percent, narrowly ahead of quality-of-earnings EBITDA discrepancies at 21.3 percent. Both categories usually trace back to something the seller could have disclosed or fixed before going to market.
- How many years of financials do buyers want to see?
- Expect to produce roughly three years of monthly financial statements, general ledger detail, and revenue by customer, plus three to five years of federal and state tax returns. Buyers use this history to build a trend, not to judge a single year, so a strong final year sitting on an otherwise flat multi-year record is usually discounted as an outlier rather than credited as momentum.
- Does my business need to run without me for buyers to take it seriously?
- Not entirely, but a business that depends heavily on the owner for sales, signatures, and institutional knowledge gets repriced or restructured rather than rejected outright. Buyers test this through management meetings held without the owner, revenue attribution by relationship owner, and late-stage customer reference calls. SRS Acquiom data shows earnouts, a common response to unresolved owner dependence, appeared in 24 percent of private-target deals outside life sciences in 2025 — a sector excluded from that figure because contingent milestone payments are already near-universal there for unrelated reasons.
- What is the minimum size of business private equity firms will buy?
- There is no single number, but private equity funds commonly set a platform-investment threshold often cited in the low single-digit millions of EBITDA, below which a deal is not worth the diligence cost for an institutional buyer — an industry convention rather than a figure any single fund or study publishes. Companies below that line more often draw interest from search funds, which traditionally target roughly $1.5 million to $5 million of EBITDA, or from individual buyers using SBA financing. These are educational estimates of typical practice, not a formal valuation threshold for any specific deal.
- Does recurring revenue actually increase what buyers will pay?
- Generally yes, because contracted, transferable revenue is more predictable than revenue that must be won again each period, which lowers a buyer's perceived risk. Buyers grade revenue quality using net revenue retention, where roughly 100 to 110 percent is commonly described as healthy and above 120 percent as premium territory — commonly cited, directional benchmarks rather than a formal valuation input — and they discount revenue that cannot be documented as genuinely contracted regardless of how it is described.
Considering a sale in the next few years? See what a prepared process looks like.
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