As a caveat, I'm going to mention some benchmark numbers but it's very important to note that none of these numbers can be viewed in isolation. There is not one number which will determine if investors want to invest. It's always about many puzzle pieces which together form a picture of the strength of your company.
Key metrics spreadsheet
- What's your visitor-to-signup conversion rate? Typically this metric is in the 1-5% range. If you're significantly below that, that doesn't have to be a red flag – there can be good reasons for a lower rate – but it may raise questions.
- What's your signup-to-paying conversion rate? In my experience, most good SaaS companies convert 5-20% of their trial signups into paying customers (but again, there can be exceptions).
- What's your lead velocity? Are you getting more and more new trials/leads every month?
- What's your account churn rate and more importantly your MRR churn rate? The best SaaS companies have an account churn rate of less than 1.5% per month and a negative MRR churn rate (which doesn't mean that you can't have a great company with somewhat higher churn or that you have to be at negative MRR churn at the time of your Series A/B).
- How fast and how consistently have you been growing MRR? Have you been adding an ever-increasing amount of net new MRR month over month?
- How has your ARPA developed? Have you been able to increase it?
- Are you able to sell annual plans?
- How long did it take you to get to $1M ARR? The best SaaS companies get there within 12-15 months after launch (but again, lots of exceptions ... there are companies that start slowly and skyrocket later).
- How much have you been spending on customer acquisition? As a rule of thumb, most SaaS companies should target a CAC payback time of 6-12 months, although in some cases there can be good reasons to spend significantly more.
- What are your CoGS and what's your Gross Profit Margin? As a pre Series A startup you're probably not great at tracking/attributing CoGS ... which I think is OK.
- How much MRR have you been gaining by acquiring new customers? Have you been able to add MRR by expanding existing accounts as well?
- How much MRR have you been losing due to churn or downgrades?
- Mamoon Hamid of Social+Capital has coined the term "Quick Ratio" for the ratio between added MRR and lost MRR, and he's looking for companies with a Quick Ratio of > 4. If your Quick Ratio is significantly below that, is it trending in the right direction?
- How does your account and MRR retention look like for some of your older customer cohorts? Do you have low or even negative MRR churn?
- Taking a "vertical" look at the cohort analysis, are you getting better and better over time, i.e. do your younger cohorts look better than older ones?
- What's your estimated CLTV based on this cohort data?
- How does usage activity look like on a cohort basis? Is there a lot of "hidden churn" (customers who got inactive and are likely to cancel soon)?
- Is your plan both ambitious and realistic? Most investors are looking for T2D3 type growth, i.e. once you've reached around $1M in ARR you should try to grow 3x y/y for two years.
- Is your plan a coherent continuation of your historic/present numbers, both methodically and with respect to your key assumptions? Projecting a sudden, drastic improvement of your key drivers is understandably much harder to sell to investors.
- Are your key assumptions plausible, and what's the impact of somewhat more pessimistic assumptions?
- Did you sanity check the outcome of your model? If the result of your model is that you'll be a money printing machine within two years, that's usually a sign that you're underestimating future costs. :)
Customer acquisition channels
- How did your customers find you? Organic, paid, both? Ideally you have strong organic growth (which is strong proof of product/market fit) as well as some success with paid customer acquisition channels (which can be scaled more easily).
- How does your conversion funnel look like for different sources of traffic? What are your costs per lead and per customer for different marketing channels?
- How close are you to building a (somewhat) predictable and repeatable sales and marketing machine? Do you have a sense for the scalability of your customer acquisition channels?
- How does your current pipeline look like? Do your short-term targets look realistic based on your "in closing" pipeline? Does your overall pipeline support your mid-term targets?
- How has your pipeline developed? Has it become stronger and stronger over time?
- Are you starting to get a handle on closing probabilities and closing timelines?
Ideally, all these puzzle pieces together, along with the size and attractiveness of the opportunity you're going after and the strength of you and your team, will form the picture of a SaaS startup which has clear product/market fit, enthusiastic customers, strong initial traction, continuously improving metrics and which is on its way to building a repeatable, scalable and profitable customer acquisition engine.