Preparing for Series A: What Investors Actually Look For
Most founders pitch Series A too early with weak metrics.
Some wait too long and miss the window.
Most don't understand what investors actually care about.
This guide teaches what you need to raise Series A and when you're ready.
The Series A Myth vs. Reality
Myth: "If we have $5M ARR (or $1M MRR), we're Series A ready."
Reality: Investors don't care about absolute numbers. They care about:
- Repeatability: Can you acquire customers consistently?
- Growth rate: Are revenue gains accelerating?
- Unit economics: CAC < LTV by 3-5x?
- Team: Can this team scale?
- Market: Is TAM large enough?
A startup with $500k ARR but 30% monthly growth is Series A fundable.
A startup with $5M ARR but declining growth is not.
The Series A Checklist
Metric 1: Revenue Level
Minimum: $1-2M ARR (annual recurring revenue)
Why: Below this, company is too early stage for Series A. Seed still works.
Why not $1M: $1M ARR is the inflection point. Proves business model works, not just product.
Above $2M: You're probably overdue to raise Series A.
Metric 2: Growth Rate
Minimum: 20% month-over-month growth
Why: Investors want to see compounding. 20% MoM = 10x in a year.
How to calculate:
- Month 1 revenue: $100k
- Month 2 revenue: $120k (20% growth)
- Month 3 revenue: $144k (20% growth)
Benchmark across industries:
- SaaS: 15-30% MoM (Series A range)
- Marketplace: 20-40% MoM
- B2B: 10-25% MoM
Metric 3: Net Revenue Retention (NRR)
Minimum: 100% NRR (no churn momentum)
Why: NRR > 100% means existing customers are worth more month to month (expansion revenue).
Benchmark:
- NRR 100-110%: Good
- NRR 110%+: Exceptional (investors love this)
How to calculate: (Existing customer revenue - churn + expansion) / previous month revenue × 100
Metric 4: Customer Acquisition Cost (CAC) vs. Lifetime Value (LTV)
Minimum: CAC:LTV ratio of 3:1 or better
Why: If you spend $1 acquiring customer, they should be worth $3+.
Benchmark:
- CAC:LTV < 3:1: Unprofitable (risky)
- CAC:LTV 3:1 to 5:1: Healthy
- CAC:LTV > 5:1: Excellent (very profitable)
How to calculate:
- CAC: Total sales & marketing spend / New customers acquired
- LTV: (ARPU × Gross Margin) / Monthly Churn Rate
Metric 5: Payback Period
Minimum: Payback period < 12 months
Why: If it takes more than a year to recover CAC, unit economics are questionable at scale.
Benchmark:
- Payback < 6 months: Excellent
- Payback 6-12 months: Good
- Payback > 12 months: Risky
How to calculate: CAC / (ARPU × Gross Margin)
Metric 6: Customer Acquisition Channel
Minimum: 40%+ of customers from repeatable channel
Why: Investors want proof you can acquire customers predictably, not just lucky early wins.
Example:
- Sales team converting 30% of qualified leads = repeatable
- Content driving 2% of visitors to paid = repeatable
- Founder referrals = NOT repeatably scalable
Metric 7: Team
Minimum: Founding team + 1-2 key hires
Why: Series A is betting on team, not just idea.
Checklist:
- Founder + at least one co-founder or early employee
- Someone who can sell (founder or head of sales)
- Someone who can build product (founder or head of engineering)
- Clear hierarchy (who's CEO?)
Non-Metric Signals Investors Look For
Signal 1: Market Size
Question: TAM (total addressable market) > $1B?
Why: Investors want to fund companies that can be $100M+ businesses.
Benchmark:
- If TAM < $1B: Hard to get Series A
- If TAM $1-10B: Normal
- If TAM > $10B: Very fundable
How to estimate:
- Bottom-up: # of potential customers × average contract value
- Top-down: Total market size × your market share ambition
Signal 2: Competitive Moat
Question: Why can't a bigger competitor copy you?
Why: Investors fear commoditization. They want defensibility.
Moats investors care about:
- Network effects (more users = more valuable)
- Switching costs (expensive to leave)
- Data/AI (hard to replicate)
- Brand (trust is built)
Signal 3: Founder-Market Fit
Question: Is founder deeply embedded in customer problem?
Why: Founders with unfair advantage (founder obsession, deep connections, industry experience) are more likely to win.
Examples:
- Founder spent 10 years in industry = unfair advantage
- Founder's coworkers are customers = unfair advantage
- Founder built similar product before = unfair advantage
Signal 4: Traction Among Best Customers
Question: Do 10-20 high-value customers love you?
Why: Investors talk to customers. If customers think you're 10/10, they'll fund you. If customers are lukewarm, they won't.
Signals That Kill Series A Fundraising
Red Flag 1: No Clear Product-Market Fit
Signal: Retention < 80%, no organic growth, NRR declining
Why: You haven't proven the business model yet. Too risky for Series A.
Solution: Go back and nail PMF before raising.
Red Flag 2: Weak Unit Economics
Signal: CAC:LTV < 2:1, payback period > 18 months
Why: Math doesn't work. Scaling will just lose more money.
Solution: Improve economics before raising.
Red Flag 3: No Repeatable Sales Process
Signal: All customers are founder-sourced, or from PR luck, or chance
Why: Can't scale. Investors fear early revenue was anomaly.
Solution: Develop repeatable customer acquisition channel. Prove 10+ deals from same channel.
Red Flag 4: Weak Team
Signal: Solo founder, no hires, no clear who does what
Why: Investors are betting on people. Weak team = weak bet.
Solution: Bring on co-founder or early hire before raising.
Timeline: When to Raise Series A
Sweet spot: Month 18-24 of company existence
Why:
- Month 0-6: Finding PMF (raise seed if needed)
- Month 6-12: Validating PMF (raise seed B if needed)
- Month 12-18: Scaling early (start fundraising conversations)
- Month 18-24: Series A ready (metrics are clean)
Red flags:
- Raising Series A before month 12 = too early (or you have unfair advantage)
- Raising after month 36 = probably waited too long (momentum matters)
The Conversation Starters
1-2 months BEFORE you're ready:
- Start coffee chats with investors
- Get feedback on what you're missing
- Build relationships (investors invest in people)
When you're ready:
- Reach out to 100+ investors
- Expect 10-15% response rate
- Prepare for 20-30 meetings
- Close 2-4 term sheets
Real Example: Ready for Series A
Startup: B2B SaaS tool
At month 18:
- ARR: $1.5M
- MoM growth: 18%
- NRR: 105%
- CAC:LTV: 4:1
- Payback: 8 months
- Team: Founder, VP Sales, VP Engineering (3 people)
- Market: $50B TAM
Investor assessment: Series A ready. Fundable at $15-25M valuation.
Why: All metrics are healthy. Team is in place. Growth is repeatable. Market is huge.
Connection to PMF & Scaling
Series A comes AFTER you've proven PMF and started scaling.
If you race to Series A before PMF, you'll raise at low valuation with bad terms.
If you wait too long after PMF, you'll raise at good valuation but momentum might slip.
Series A Is Earned, Not Asked For
The best way to raise Series A is to build a company investors want to fund.
Focus on metrics, team, market, and traction. Series A follows naturally.
Use Edmired to track Series A readiness metrics and know when you're ready to fundraise. Join the beta.