Market Sizingv1.0.0

Estimate the market size for installing EV charging stations in a major US city. Use top-down (total EV market share), bottom-up (number of stations needed based on EV registrations), and external data (DOE reports).

Calculate TAM (global HR software spend), SAM (mid-market companies in North America with 50-500 employees), and SOM (realistic 2% market share in first 3 years). Use top-down from Gartner reports and bottom-up from number of target companies and average subscription price.

Estimate the addressable market for a telemedicine app focusing on tier-2 cities. Use top-down from total healthcare spend in India, bottom-up from smartphone penetration and consultation frequency, and cross-check with industry reports.

Determine the market size for premium, grain-free dog food sold online. Use bottom-up from number of dog-owning households, average spend on premium food, and online penetration rate; top-down from total pet food market; external data from pet industry associations.

Start with a known large market and subtract segments that are not relevant to the target. Useful when reliable total market data is available and key deduction ratios can be justified.

Aggregate smaller, measurable segments to derive total market size. Often more defensible because it relies on grassroots data (e.g., number of customers, average transaction value).

Combine multiple methods (top-down, bottom-up, external sources) to narrow down a range. Increases confidence and mitigates bias from any single approach.