Valuation Multiples Explained: A Guide for UK Private Companies

Why the Headline Price Isn’t What You Bank: Enterprise Value vs. Equity Value

The headline price for your business is not the cash you will receive. Confusing the Enterprise Value with the final Equity Value payout leads to serious misunderstandings during deal negotiations.

Defining the Two Core Concepts of Value

Enterprise Value (EV) is the headline price for a business’s operations, regardless of how it is financed. It represents the value to all capital providers, including shareholders and lenders.

Equity Value is the value that belongs solely to shareholders. It is the cash an owner actually receives after the business’s debts are paid.

The Enterprise-to-Equity Bridge Calculation

UK transactions typically happen on a “cash-free, debt-free basis.” A buyer and seller first agree on the Enterprise Value, then adjust it based on the balance sheet to determine the final Equity Value paid to the seller.

The calculation works like this:

In this example, the seller receives £2.6 million. The classification of items as cash-like or debt-like is often the subject of intense negotiation.

Which Valuation Multiples Actually Matter in UK M&A?

While many valuation metrics exist, EV/EBITDA is the dominant multiple in private company M&A and warrants the most detailed focus.

EV/EBITDA: The Workhorse of Private Company Valuation

The single most important multiple in UK M&A is Enterprise Value to EBITDA, the default language for pricing private businesses.

EBITDA stands for Earnings Before Interest, Taxes, Depreciation, and Amortisation. Advisers use this financial metric because it provides the clearest comparison between companies by ignoring capital structure, tax jurisdiction, and accounting differences such as depreciation and amortisation.

The calculation is EV / EBITDA, so a business with an Enterprise Value of £6 million and EBITDA of £1 million has an EV/EBITDA multiple of 6.0x.

However, the most common mistake in this calculation is using the wrong EBITDA input. Since Value = EBITDA × Multiple, the formula amplifies every £1 of error in the earnings figure. To prevent costly errors, advisers focus on “Adjusted EBITDA,” the earnings figure normalised for items that would not recur under new ownership. Common adjustments for private companies include adding back excess owner salaries, personal expenses run through the business, and one-off legal costs.

According to BDO’s Private Company Price Index, UK private companies sold to trade buyers at an average of 9.8× historic EBITDA in Q3 2024, while private equity buyers paid 12.2×. Dealsuite’s data, which reflects smaller deal sizes, reports a lower UK mid-market average of 5.3×.

EV/Revenue: When is Top-Line Growth the Only Metric?

The EV/Revenue multiple is used when earnings-based metrics break down. Advisers apply it to value loss-making businesses, early-stage companies, or high-growth firms investing aggressively in expansion. The multiple’s main advantage is that revenue is harder to manipulate than earnings.

A severe limitation of this multiple is that it says nothing about profitability. A business generating £5m revenue at a 5% margin is worth far less than one generating £4m at a 25% margin, but a revenue multiple struggles to show this. The EV/Revenue multiple is most common in the valuation of SaaS and technology companies, where buyers use it to value future potential over current performance.

P/E Ratio: Why Is It Rarely Used in Private M&A?

The Price-to-Earnings (P/E) ratio divides a company’s share price by its earnings per share (EPS). It is the most recognised multiple among public stock market investors.

However, advisers rarely use the P/E ratio in private company M&A for three reasons. First, a company’s capital structure distorts the ratio; a business with more debt will have higher interest costs and lower net income, reducing its P/E ratio.

Second, different tax regimes affect the result. Third, advisers cannot calculate the ratio if earnings are negative. The CFA Institute notes that EPS is “frequently subject to distortion.” For these reasons, EV/EBITDA has almost completely supplanted P/E as the preferred multiple in M&A.

EV/Unlevered Free Cash Flow: The Private Equity Favourite

Private equity buyers often favour the EV-to-Unlevered Free Cash Flow (UFCF) multiple. UFCF represents the cash generated by a business before accounting for debt payments.

Unlevered Free Cash Flow gives the clearest possible view of a company’s operational efficiency and its ability to generate cash to service debt and return capital to investors. Because private equity business models rely on using leverage (debt) to finance acquisitions, a clear view of a target company’s underlying cash-generating ability is critical to their investment decisions.

What a Multiple Reveals About Risk and Growth

A valuation multiple is not a random number. It is a compressed version of a full Discounted Cash Flow (DCF) valuation, packing assumptions about risk, growth, and capital needs into a single figure.

How Risk Drives Multiples Down

Higher risk demands a higher potential return for a buyer, which translates directly into a lower valuation multiple. Key factors that increase perceived risk and reduced multiples include:

• Customer concentration: High dependency on a small number of clients.
• Supplier dependency: Reliance on a single source for critical materials or services.
• Owner reliance: A business that cannot function without the specific skills or relationships of the current owner.

How Growth Drives Multiples Up

Buyers pay higher multiples for businesses they expect to grow. The multiple reflects not just what the business earns today, but what the buyer expects it to earn in the future. Factors that signal higher growth and command higher multiples include:

• Recurring revenue models: Businesses with high recurring revenue attract multiples two to three times higher than similar businesses reliant on one-off sales.
• High return on invested capital (ROIC): A measure of how efficiently a company uses its capital to generate profits.
• Scalable operating and financial characteristics: The ability to increase revenue without a proportional increase in costs.
• Defensible market position: A strong brand, intellectual property, or other barriers to entry that protect the business from competition.

How Advisers Use Multiples to Calculate Your Company’s Value

Advisers use a formal process called relative valuation to determine an appropriate multiple for a private company. Relative valuation grounds the valuation in real-world market data.

1. Step 1: Perform a Comparable Company Analysis (CCA)

   The adviser researches recent M&A transactions and the market values of publicly traded companies that are similar to the target company.

2. Step 2: Select a Peer Group of Genuinely Similar Companies

   Selecting the peer group is the most subjective step. The adviser selects a small group of companies with similar operating and financial characteristics, such as industry, size, and growth rate. As Dittmann and Weiner (2005) found, advisers should choose comparables for UK companies from the UK only.

3. Step 3: Calculate the Median Multiple for the Peer Group

   The adviser calculates the relevant multiple (e.g., EV/EBITDA) for each company in the peer group and then determines the median. Using the median instead of the mean reduces the effect of outliers.

4. Step 4: Apply the Median Multiple to Your Company’s Financial Metric

   The adviser multiplies your company’s adjusted financial metric (e.g., normalised EBITDA) by the median multiple of the peer group to arrive at an initial valuation.

5. Step 5: Triangulate the Result with Other Valuation Methods

   No single method is perfect. A robust company valuation will cross-check the multiples-based result against other methods, such as a Discounted Cash Flow (DCF) analysis, to establish a credible valuation range.