Why Valuation Multiples Rise with Company Size in M&A

Two companies in the same industry, with similar profit margins and growth rates, can sell for very different prices per dollar of earnings. The larger one almost always earns a higher multiple. This pattern, often called the size premium, is one of the most consistent features of private-company M&A. It helps explain why an owner who doubles the earnings of a business can sometimes more than double its value, and why the last stretch of growth before a sale can matter more than any single quarter that came before it.

The size premium, defined

The size premium describes the tendency for larger companies to trade at higher earnings multiples than smaller companies, even within the same sector. Valuation professionals capture the same idea from the cost-of-capital side. Widely used data such as the Kroll (formerly Duff & Phelps) Cost of Capital studies assign smaller companies a higher risk premium, which raises the required return and lowers the implied multiple. In one published healthcare example, a size adjustment moved a multiple from roughly 10x down to about 7.6x, a reduction of nearly a quarter of the value attributable to size alone. As a general rule, the smaller the company, the larger that adjustment tends to be, and the effect compounds with other risk factors specific to the business.

A useful way to hold the idea: a multiple is roughly the inverse of the return a buyer demands. Anything that makes future earnings feel less certain raises that required return and compresses the multiple. Size, on its own, is a proxy for a bundle of those certainty factors, which is why it shows up so reliably in transaction data even after controlling for industry.

How multiples step up across size bands

Reported transaction data shows multiples rising in rough steps as earnings grow. The figures below are broad, industry-wide ranges rather than promises for any single business, and factors such as growth rate, margins, and recurring revenue can push an individual deal well above or below them.

• Main Street (under roughly $1M of earnings): often around 2x to 4x, and frequently quoted on seller's discretionary earnings rather than EBITDA.
• Lower middle market ($1M to $3M EBITDA): commonly in the 4x to 6x area.
• $3M to $5M-plus EBITDA: often 6x to 8x, with stronger businesses reaching higher.
• Core middle market ($10M to $500M enterprise value): private-equity-sponsored deals have averaged roughly 7x to 7.5x adjusted EBITDA in recent years.
• Large and public companies: higher still, reflecting scale, liquidity, and transparency that private buyers tend to discount.

Transaction databases such as GF Data have measured a persistent gap of close to a full turn of EBITDA between the smallest deals and the next tier up. In practice that means the same profit stream can be worth meaningfully more once a company crosses into a larger band. The steps are not perfectly smooth, and quiet or crowded deal markets can widen or narrow them, but the direction is remarkably steady across cycles.

Lower perceived risk and operational depth

Much of the premium reflects risk. Larger companies tend to carry more stable earnings, more diversified operations, and less dependence on any single person. Buyers underwrite the years after closing, not the years before it, so anything that threatens future cash flow gets priced into a lower offer. Common contrasts include the following.

• Key-person risk: smaller firms often rely heavily on the owner for sales, relationships, and technical knowledge, which a buyer treats as fragility that leaves with the seller.
• Management depth: larger companies more often have a second layer of leadership that can run operations without the founder present, which supports a cleaner transition.
• Diversification: a broader base of customers, products, suppliers, and geographies means no single loss threatens the whole business.
• Financial transparency: larger private companies usually keep more detailed and reliable records, which reduces the uncertainty a buyer prices into the offer.
• Resilience: scale often brings purchasing power, buffer capacity, and the ability to absorb a bad month, all of which read as durability to an acquirer.

Because a multiple is essentially the inverse of a required return, each of these lower-risk traits mathematically supports a higher number.

A larger and more competitive buyer pool

Size also changes who is willing to bid. Many private-equity funds set a minimum earnings threshold for a platform investment, often somewhere in the low single-digit millions of EBITDA, below which a company is too small to justify the cost and effort of a deal. As earnings rise past those thresholds, the field of qualified buyers widens to include institutional investors, larger strategic acquirers, and more private-equity firms, along with the family offices and search funds that follow them upmarket.

More buyers generally means more competition, and competition is one of the strongest forces pushing a price upward. A company that only a handful of local buyers can afford sits in a thinner market than one that draws national funds and corporate acquirers into an organized auction. The same asset can clear at a higher multiple simply because more credible parties are bidding against one another for it, which is a large part of why the process itself, not only the financials, influences the final number.

Financing availability and leverage

Larger deals are usually easier to finance. Lenders tend to be more comfortable extending acquisition debt against a bigger, more diversified earnings stream, and access to leverage lets a buyer pay a higher headline price while still hitting return targets. Smaller companies face the opposite: thinner financing options and stricter coverage requirements can cap what buyers are able to offer, and more of the purchase price may need to come as equity or seller financing. This financing gap is one reason the same industry can show a wide multiple spread from the bottom to the top of the size range, independent of how the businesses actually operate.

Public multiples and the private discount

Public-company multiples are often the highest of all, but they are not a fair yardstick for a private business. Public shares are liquid, heavily regulated, and backed by audited disclosure, so investors accept a lower return and pay a higher price. Private companies carry a marketability discount on top of the size premium, because an owner cannot sell a stake with a keystroke and a buyer cannot exit easily. This is why quoting a public peer at 12x rarely translates into a private offer near that level, and why the gap tends to be widest for the smallest sellers.

What tends to move a company up a band

Because the premium attaches to size and to the risk factors that come with it, owners and advisors often look at the characteristics that separate the bands rather than size alone. Common areas of focus in the years before a sale include the following.

• Growing durable EBITDA so the business clears the thresholds that unlock a wider buyer pool.
• Reducing customer concentration so no single account represents an outsized share of revenue.
• Building a management team capable of running the company without daily owner involvement.
• Adding recurring or contracted revenue, which buyers treat as more predictable and therefore more valuable.
• Cleaning up financial records so results can withstand the scrutiny of due diligence and a quality-of-earnings review.
• Documenting systems and processes so institutional knowledge sits in the business rather than in one person's head.

None of these guarantees a specific multiple, and results vary widely by industry and market conditions. They describe, in general terms, the profile that buyers associate with larger, lower-risk companies. The work usually takes years rather than months, which is why the topic tends to come up long before an owner is ready to sell.

How the size premium shows up in a sale process

A prepared, competitive process is one of the ways a size premium is realized rather than left on the table. Presenting clean financials, a defensible earnings figure, and a clear growth story to many buyers at once tends to surface the top of a company's reasonable range. Platforms such as Bankerly aim to bring that kind of structured, bank-style process to smaller deals that traditional advisors often overlook. The general principle holds regardless of the advisor: broader buyer competition and lower perceived risk are what larger multiples are paying for, and a disciplined process is how those two forces reach the final price.

This article is educational and general in nature. It is not tax, legal, or investment advice, and every company's valuation depends on facts specific to its industry, financials, and market at the time of a transaction.

Sources

• Porter White & Company - Why You Can't Just Use Public Company Multiples for Your Private Company
• Hillview Partners - EBITDA Multiples and Valuation Ranges: How Companies Are Valued
• Newport LLC - The Elusive EBITDA Multiple in Private Company Valuations
• Raincatcher - EBITDA Valuation Multiples by Industry and Size
• First Page Sage - EBITDA Multiples for Small Businesses