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Finance Advice
Prepare to Raise your Series A
To raise a successful Series A, founders must demonstrate strong product-market fit, capital and sales efficiency, and solid retention metrics—all signaling readiness to scale.

Renato Villanueva
CEO & Cofounder
Jul 16, 2025
When you’re raising a Pre-Seed or Seed round, it really all comes down to the founder. At Series A it’s still about the founder—plus clear indicators that things are ready to scale.
We’ve broken it down into four simple pillars:
Solid PMF
Capital Efficiency
Sales Efficiency
NRR
Solid PMF
The easiest way to show this is with revenue (ARR) between $1 M and $5 M—and a fast path to get there.
If it took you three years to reach $1 M in ARR, it suggests a grind with lots of convincing and no escape velocity.
If it took you three months to reach $1 M in ARR, investors will be excited by that trajectory.
Capital Efficiency
No one expects you to be profitable yet (bonus points if you are), but you must show you’ve been a good steward of capital.
A simple metric is your burn multiple.
Calculate it by taking last month’s net burn and dividing it by new ARR. If you burned $100 K last month and added $50 K of ARR, the burn multiple is 2—too high, meaning you’re spending too much.
Burn multiple < 1.5× signals best-in-class efficiency; Series A winners average 1.0–1.7×.
Sales Efficiency
A quick way to show your marketing spend isn’t out of control is to reveal your magic number.
Magic Number = (Revenue Current Quarter – Revenue Previous Quarter) ÷ Previous Quarter Sales & Marketing Spend
It shows whether last quarter’s marketing spend drove this quarter’s revenue efficiently.
A Magic Number ≥ 0.75 tells investors each $1 in S&M turns into $1 of new ARR within a year. The bigger, the better. If you can show you spent $1 and got $2 of new ARR, that’s ideal.
Retention, Retention, Retention
Investors want to know today’s revenue will stick. The simplest proof is data on renewals, expansions, and contractions.
NRR = Starting MRR – Contraction + Expansion – Churn
If NRR is above 100 %, expansions outweigh churn and contraction, indicating customers will stick around.
Summary
Show investors you’ve found something the market rushes to buy, that you haven’t had to convince the market by dumping money into marketing, and that you’ve treated capital wisely—with the cherry on top that your customers will stay.

Renato Villanueva
CEO & Cofounder