Quick Reference: Top-Down vs Bottom-Up Market Sizing
Compare top-down and bottom-up market-sizing approaches and know when each is stronger.
Top-down or bottom-up? Use both when you can: context from the top, credibility from the bottom. What does top-down usually miss? Product constraints, job intensity, channel reach, and conversion reality. Those are the inputs that matter most once you move from category curiosity to planning. What makes bottom-up stronger after interviews and surveys? You can filter accounts not just by fit, but by whether the acute job appears often enough to matter. That turns a reachable list into a research-backed segment. The bottom-up number is too small to be exciting. Your line The smaller number is not the ceiling; it…
Sign up free — one personalized lesson every day, matched to your role and goals.
Already have an account? Sign in