MarketSizer shows which companies are actively evaluating solutions, fit your ICP, and match competitive scenarios where you historically win. Stop wasting time on prospects that will never convert.
8 out of 10 MarketSizer opportunities are ICP-aligned and in-market when contacted

MarketSizer leverages real-time subscription insights to provide your revenue teams with highly qualified opportunities that are a strong fit, actively buying and historically winnable.
8 out of 10 MarketSizer opportunities are ICP-aligned and in-market when contacted
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You're prospecting into companies that don't match your best customers' profiles. Without knowing their tech stack, competitive usage, and buying patterns, you fill your pipeline with poor-fit prospects that won't convert.
You're reaching out to companies that aren't evaluating yet, or worse, already chose a competitor last month. By the time generic intent scores show activity, the buying window has already passed.
Even when companies are evaluating, many deals are unwinnable. They're locked into long contracts with sticky incumbents, or they're in competitive scenarios where you historically lose. You waste cycles on deals you can't close.
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Identify companies actively trialing competitors across 154 vendors, recently churned from incumbents, or approaching renewal windows. Every intent signal is backed by observable subscription activity. No anonymous browsing or black-box scoring.
Filter by ICP fit (tech stack and competitive overlap with your best customers), purchase intent (active trials and renewals), and win probability (based on 40M+ historical outcomes in similar competitive scenarios). Focus where conversion odds are highest.
MarketSizer pinpoints which prospects are evaluating competitor solutions so you can engage with better timing and sharper positioning.
MarketSizer shows your historical win rates in different competitive scenarios. Focus on opportunities where you have proof of success (same incumbent, same tech stack patterns, same evaluation behavior) and avoid deals you're statistically unlikely to close.
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Enrich accounts in bulk via CRM/Clay/List upload, or enrich one at a time on websites, LinkedIn or prospecting tools like Apollo.
Surface real-time subscription changes, competitor trials, switching activity, and tech stack context.
Rank accounts by ICP Match, Purchase Intent, and Win Predictor so you focus on in-market accounts you're likely to win.
Get recommended actions (which role/title to engage, how to position, and when timing is right) to win, grow and retain accounts (automations coming soon).


MarketSizer qualifies every opportunity across ICP fit, purchase intent, and win probability before you see it. You only spend time on companies that match your best customers' profiles, are actively evaluating solutions, and match competitive scenarios where you historically win.
Yes. MarketSizer ranks opportunities using three dimensions: ICP fit (based on tech stack and competitive overlap, not just firmographics), purchase intent (real signals like trials and churn, not page visits), and win probability (from 40M+ competitive outcomes). You focus where conversion odds are highest.
You'll see qualified opportunities within days of connecting your CRM. Trial detection, competitive churn signals, and win probability scores populate immediately, showing you which companies are evaluating solutions right now.
We integrate directly into your CRM, so you get live buying signals where you already work. No extra logins, no manual list building, just prioritised accounts ready for your next outreach.