What key metrics do Series A investors evaluate before investing?

Full Explanation

Series A represents the transition from 'interesting experiment' to 'scalable business,' and investors evaluate a specific set of metrics that demonstrate this readiness. While thresholds vary by sector and geography, consistent patterns emerge across institutional Series A investors. Revenue metrics are the primary filter. Most Series A investors want to see £50,000-200,000 in monthly recurring revenue (MRR) for SaaS businesses, or equivalent traction metrics for other models (GMV for marketplaces, revenue run-rate for transactional businesses). The growth rate matters as much as the absolute number — 15-20% month-on-month growth signals strong product-market fit. Investors will scrutinise whether growth is organic or paid, and whether it is accelerating or decelerating. Unit economics must demonstrate a viable business model. The LTV:CAC ratio should exceed 3:1, meaning each customer generates at least three times the cost of acquiring them. CAC payback period (how many months until a customer's gross profit covers acquisition cost) should ideally be under 12 months for SaaS. Gross margins should be 60%+ for software, 40%+ for marketplaces. Retention and engagement metrics prove that the product creates lasting value. Net revenue retention above 100% (existing customers spend more over time) is a strong signal. Monthly or weekly active user trends, feature adoption rates, and cohort retention curves all contribute to the picture. Churn below 3% monthly for SMB SaaS or below 1% for enterprise SaaS is typical. Beyond metrics, Series A investors evaluate the team (domain expertise, execution track record), market size (TAM analysis), competitive differentiation, and the clarity of the go-to-market strategy. The strongest candidates combine strong quantitative metrics with a compelling narrative about why this team in this market at this time can build a category-defining company.

Related Glossary Terms

Related Questions