Comparable Company Analysis (Comps): A Practical Guide for Finance Professionals

Comparable company analysis — usually just called "comps" or "trading comps" — is one of the most widely used valuation techniques in finance. The idea is simple and intuitive: value a company by looking at what similar companies are worth. It's a staple of equity research, investment banking and corporate finance. This guide explains what comparable company analysis is, how it's done, and its strengths and limitations. It builds on the EV/EBITDA multiple and other valuation multiples.

What is comparable company analysis?

Comparable company analysis is a relative valuation method: instead of valuing a company from its own projected cash flows (as a discounted cash flow does), it values it by reference to how the market prices similar businesses. The logic is that similar companies — in the same industry, of similar size and with similar growth and risk profiles — should trade at similar valuation multiples. By looking at the multiples of a peer group, you can estimate what the company you're valuing is worth.

How comparable company analysis works

The process follows a clear sequence:

1. Select the peer group. Identify a set of genuinely comparable public companies — similar industry, business model, size, growth and risk. This is the most important and most judgemental step, because the whole analysis rests on the comparables being truly comparable.
2. Gather the data and calculate multiples. For each peer, calculate the relevant valuation multiples — commonly EV/EBITDA, the price-to-earnings (P/E) ratio, EV/Sales and others, depending on the industry.
3. Benchmark the multiples. Analyse the range of multiples across the peer group and establish a representative figure — often the median or an adjusted average — rather than relying on any single peer.
4. Apply to the target. Apply the benchmark multiple to the corresponding financial metric of the company you're valuing to estimate its value.

A simple illustration

Suppose you're valuing a company with EBITDA of £50m, and a group of comparable listed companies trades at a median EV/EBITDA of around 8×. Applying that multiple gives an estimated enterprise value of roughly £50m × 8 = £400m. In practice you'd look at a range of multiples and metrics, and sense-check the result, but the principle is that simple: the market's pricing of similar businesses guides the value.

The advantages

Comps are popular for good reasons. They're market-based, reflecting what investors are actually willing to pay right now, rather than relying on long-term forecasts. They're relatively quick and straightforward compared with building a full discounted cash flow model. And because they're grounded in observable market data, they're easy to explain and widely accepted. For a fast, reality-anchored read on value, comps are hard to beat.

The limitations

The method's weaknesses follow from its strengths. No two companies are identical, so finding genuinely comparable peers is difficult, and differences in growth, margins or risk can distort the comparison. Comps also reflect current market sentiment — if the whole sector is over- or under-valued, the comps will be too, so they capture relative rather than intrinsic value. And they rely on a snapshot of multiples rather than the company's own fundamentals. For these reasons, comparable company analysis is best used alongside other methods, such as a discounted cash flow and precedent transactions, rather than on its own.

How comps fit with other valuation methods

Comparable company analysis is rarely used in isolation; it's one of three core valuation approaches that professionals triangulate between. Comps use the trading multiples of similar listed companies. Precedent transaction analysis looks instead at the multiples paid in actual past deals for similar businesses, which often include a control premium. And the discounted cash flow values a company from its own projected cash flows, giving an intrinsic rather than market-relative view. Each has different strengths, and where they disagree is itself informative — a valuation that holds up across all three is far more defensible than one resting on a single method.

Frequently asked questions

What is comparable company analysis?

A relative valuation method that values a company by reference to the valuation multiples of similar public companies, on the basis that comparable businesses should trade at comparable multiples.

What are the steps in a comps analysis?

Select a comparable peer group, calculate their valuation multiples, benchmark a representative multiple, and apply it to the target company's corresponding metric.

What multiples are used in comps?

Commonly EV/EBITDA, the P/E ratio and EV/Sales, among others, with the choice depending on the industry and what's most relevant for the businesses involved.

What are the limitations of comparable company analysis?

No two companies are truly identical, so comparability is difficult; the multiples reflect current market sentiment rather than intrinsic value; and it's best used alongside other valuation methods.

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