Guide

By Series B and beyond — and sometimes late Series A — investors underwrite with revenue multiples, usually on ARR for SaaS:

implied post-money ≈ ARR × multiple

The multiple depends on growth, retention, margins, and the public comps. Growth-stage valuation still mixes art and comps. Bankers and later-stage funds build football fields (public comps, precedent transactions, DCF). Founders should still model dilution and preference stacks, not just celebrate enterprise value.

The big idea

A shop valued as "six times last year's sales" is the picture. A shop growing twice as fast gets a higher multiple. The analogy breaks on private-company terms: preferred rights, pools, and the next round you must grow into.

As of 2025–2026, median public SaaS EV / next-twelve-months revenue has often sat in a rough mid-single-digit band (order of ~5–7× in calmer periods, higher for the fastest growers). Private rounds for high-growth companies still clear at a premium to that median when competition is intense. Treat any single number as perishable; read Clouded Judgement or similar for the current tape.

What pushes a company to the high end: fast net-new ARR, strong net revenue retention (expansion > churn), improving efficiency metrics (burn multiple, magic number, payback), a path to operating leverage / Rule of 40 style health, strategic scarcity.

What compresses multiples: slowing growth, weak retention, messy unit economics, a crowded category, or a risk-off market. In 2022 many companies that raised at 50–100× ARR had to face reality in 2023–2024.

Walking through $10M ARR

Company at $10M ARR, growing 80% YoY with strong NRR. In a constructive market a growth investor might underwrite 15–25× ARR → ~$150–250M post before debating terms. Same company growing 25% with a high burn multiple might clear closer to 6–10× → $60–100M post. The product did not change overnight; the growth and efficiency story did. Always ask "multiple on what ARR, with what growth?" before comparing two deals.

Growth investors send associates to build a comps sheet: public SaaS EV/NTM revenue, adjusted for growth buckets, plus private-round rumors. Founders should do a lighter version: pick five publics with similar growth, note the median multiple band, and ask whether the proposed private multiple is a small premium (normal) or 3–5× the public median (you need a story). Efficiency metrics decide whether you deserve the top quartile. See SaaS metrics.

None of this replaces ownership math at seed. It becomes the language at Series B+.

Common mistakes

  • Comparing two posts without matching ARR and growth. 15× of $10M is not 15× of $4M.
  • Using 2021's 50–100× as a planning number. That tape did not survive 2023–2024.
  • Skipping efficiency. Burn multiple and NRR decide the quartile.

Check yourself

$10M ARR, 80% growth, constructive market at 20×. Rough post-money?

About $200M before terms. $10M × 20 = $200M.

Why might the same company at 25% growth clear closer to $60–100M?

The multiple compresses (on the order of 6–10×) when growth and efficiency weaken.

Key takeaways

  • Later posts ≈ ARR × a multiple set by growth, retention, and comps.
  • Public medians are a noisy floor; private premiums need a story.
  • Always ask "multiple on what ARR, with what growth?"

Further learning

Clouded Judgement (Jamin Ball)Weekly data driven analysis of AI and software companies. Click to read Clouded Judgement, by Jamin Ball, a Substack publication with tens of thousands of subscribers.cloudedjudgement.substack.com SaaS Capital: private SaaS valuationsThe SaaS Capital Index™ stands at 7.0 times current run-rate annualized revenue. Data for bootstrapped companies yields a predicted private SaaS company valuation multiple of 4.8x while data for equity-backed companie…SaaS Capital

Next, valuation vs terms.