Meet the Opportunity Score: Know who to target, why now, and what to do next.
One score per account, built first for customer support and live chat vendors and expanding across ITSM, CRM, and sales enablement - so every rep focuses effort where they can actually close.
GTM teams waste time on the wrong accounts.
Most sales and marketing effort fails because teams cannot answer three questions before they engage: Is this account a good fit? Are they actively evaluating right now? Can we actually win this deal? MarketSizer answers all three - before your first outreach.
We show you qualified opportunities you can trust.
Every account MarketSizer surfaces is backed by evidence across three critical dimensions.
Evaluation Signals
Real signals from trials, churn, and renewals - the purchase intent dimension of the Opportunity Score.
- Trial detection across 200+ vendors and 250+ products
- Competitive switching moments
- Daily refresh with max 5-day lag
ICP Fit
Companies that match your best customers.
- ICP evaluated against 200+ vendors and 250+ products
- Tech stack patterns matching your best customers
- Historical overlap with winnable scenarios
Context
The competitive landscape and what to say next.
- Which vendors are present, what changed, what to lead with
- Incumbent displacement patterns benchmarked across 70M+ outcomes
- Historical win likelihood by scenario, so the rep knows the odds before the first touch
From market signal
to won deal
Discover, Qualify, Act - the workflow GTM teams use from first signal to closed deal.
See who is actively evaluating
MarketSizer surfaces accounts actively evaluating alternatives - trialling new tools, showing buying signals in the live chat, CRM, or ITSM category. No more cold outreach to accounts that are not ready.
- See tech stack, trials, and subscription changes instantly
- Spot competitor switching moments and in-market signals
- Daily refresh with max 5-day lag on new signals
Rank by fit and win likelihood
Not every in-market account is worth pursuing. The Opportunity Score combines ICP match, purchase intent, and win probability - benchmarked against 70M+ historical subscription outcomes - so your team works the accounts most likely to close.
- ICP scoring benchmarked against 200+ vendors
- Win likelihood by vendor, segment, and signal type
- ACV estimates before your first conversation
Reach them before the window closes
Evaluation Signals tell you when an account is actively evaluating - not just theoretically a fit. Historical context shows how accounts typically evaluate and adopt tools in your category, so you reach them at the right moment with the right message.
- Trial and churn signals updated daily
- Competitive displacement timing patterns
- Historical context on evaluation and adoption cycles
Find out who's evaluating in your market right now
before your competitors do.
30 minutes. No commitment. We'll show you the accounts actively evaluating in your market today.
No credit card · Tailored to your ICP · Live data, not a slide deck