Most sales teams trust their CRM data. ContactZen shows you what's actually usable — before you waste another sequence on a number that won't connect.
No credit card required · No data stored · Read-only access
Enterprise direct dials are silently failing. Emails deliver. Phones don't connect. Your data vendor calls it valid — ContactZen shows you what's actually reachable.
of contacts flagged high-risk in a real CRM scan — invalid, unreachable, or actively harmful to sender reputation
of phone numbers invalid or missing — your dialers are burning credits on numbers that don't exist
enterprise direct dials connected in a real outreach test — every email delivered, zero phones reached
From connection to insight in under 60 seconds.
Connect HubSpot directly via OAuth, or upload a CSV export from any CRM. Takes 30 seconds.
We check every contact for email deliverability, phone reachability, duplicates, field completeness, and source attribution.
See your risk rate, ROI impact, worst offending sources, and a clean export — ready to act on immediately.
Your contact data is sensitive. We designed ContactZen so you never have to wonder what happens to it.
Your data is processed in memory and immediately discarded. Nothing is written to a database.
ContactZen can only read your contacts. We cannot modify, delete, or export anything from your CRM.
Built from day one with security best practices. Process-and-discard data model minimizes your compliance surface.
You control the connection. Disconnect ContactZen from your HubSpot settings in one click, at any time.
Upload a CSV or connect HubSpot. Get your reachability report in under 60 seconds.
No credit card required · No data stored · Read-only access