You know your ARR. You’ve rehearsed the revenue slide until you could pitch it in your sleep. And yet, somewhere between the first coffee and the second slide, the investors across the table have already moved past your headline number and started doing math you didn’t prepare for.
The disconnect isn’t about revenue — it’s about everything revenue doesn’t tell you. Many founders arrive at a Series A or B fluent in one language and functionally illiterate in another. That gap is where deals quietly die. Here are the seven metrics investors scrutinize — and what each one actually signals about your business.
1. ARR: The Baseline That Makes Everything Else Legible
Annual Recurring Revenue is the foundation. Without a clean, auditable ARR figure, no other metric is credible. Series A investors typically expect $3M–$5M+, but the number itself is almost beside the point. What they’re evaluating is how cleanly you define it — whether you’re padding it with one-time fees or professional services, and whether the contracts are genuinely recurring. ARR is where the story starts. Everything else is commentary on its quality.
2. What Is Net Dollar Retention and Why Do Investors Care So Much?
Net Dollar Retention (NDR) is the single most powerful signal of product-market fit and pricing power — and many founders either can’t define it or don’t track it. The formula: start with revenue from existing customers, add upsells and expansions, subtract downgrades and churn, divide by the starting figure. An NDR above 100% means you’re generating new revenue from your existing base — without adding a single new customer. Top SaaS companies run at 120%+. Per Bessemer Venture Partners’ State of the Cloud, Gross Revenue Retention below 90% starts raising flags at the institutional level. If your NDR is below 100%, the growth story gets complicated fast.
3. Gross Margin: The Ceiling on Your Valuation Multiple
Low gross margins don’t just hurt profitability — they cap your valuation. Investors run the math: a SaaS company at 50% gross margins when the benchmark is 70–80% narrows the path to a venture-scale return significantly. Gross margin is revenue minus COGS, expressed as a percentage. It tells investors whether scaling will make the business more profitable — or just more expensive. Pure SaaS should be in the 70–80% range. Infrastructure-heavy or healthtech companies vary, but that doesn’t excuse an inability to explain the trajectory.
4. CAC: Not What It Is, But Where It’s Going
Customer Acquisition Cost is total sales and marketing spend divided by new customers acquired. As an absolute figure, it’s less interesting than as a trend line. A high CAC at an early stage is forgivable; a CAC that isn’t compressing by Series B signals a go-to-market that hasn’t matured. Per OpenView’s SaaS Benchmarks Report, efficiency varies by segment and motion — but direction of travel matters more than the number itself.
5. LTV:CAC — The Business Model Sanity Check
Below 3:1, you’re spending more to acquire customers than your business model can support at scale. Elite SaaS companies target 5:1 or better. The math is straightforward — total expected revenue over the customer’s lifecycle, divided by what it cost to acquire them. What’s less obvious is how quickly this ratio exposes weak pricing, high churn, or an inefficient sales motion. A 3:1 is the floor. Investors want to see where the ceiling is.
6. What Is Burn Multiple and Why Does It Matter Right Now?
Burn Multiple is net cash burned divided by net new ARR — and it has become the defining capital efficiency metric of the post-2022 investing environment. Below 1.0x is excellent; 1.0–1.5x is solid; above 2.0x invites hard questions. Popularized by David Sacks of Craft Ventures, it asks one simple, brutal question: how much are you burning to generate each dollar of new recurring revenue? After the rate cycle reset investor expectations from growth-at-all-costs to sustainable efficiency, this became the new litmus test. Most founders have never calculated it. That’s precisely why it matters.
7. Runway — Report It in Weeks, Not Months
Founders think in months. Investors think in weeks. The difference isn’t semantic — it’s operational. ‘Twelve months of runway’ sounds comfortable. ‘Forty-eight weeks’ feels like forty-eight decisions. Reporting in weeks forces the precision investors are already applying. Scale Venture Partners and most institutional firms want to see 18–24+ months before a raise. More important: are you tracking burn weekly and adjusting in real time — or discovering the problem the month payroll won’t clear?
Knowing the Numbers Is Step One
Understanding these seven metrics is table stakes. The harder challenge is building the financial infrastructure to track them accurately, present them credibly, and defend them under pressure — in a board meeting, a diligence call, or a thirty-minute partner presentation.
That’s where a fractional CFO and finance team earn their keep. Not as number-crunchers, though they are important too. Rather, as translators — between the business you’re building and the financial narrative investors need to commit capital.
If your books and your investor deck are telling different stories, investors will notice before you do.
Ready to get your financial story investor-ready?
Murdock Martell provides fractional CFO and finance team solutions built for growth-stage companies. Learn more or get in touch at murdockmartell.com.