tested 6 b2b data providers head to head - the difference was huge. I will not promote
Ran the same 500 prospect list through ZoomInfo, Lusha, Seamless.AI , Cognism, LeadIQ, and ContactOut last week. Out of 500 contacts, the match rates ranged from 180 (ContactOut) to 410 (ZoomInfo). But what killed me - when we spot-checked 50 random emails from each provider, accuracy was all over the place. ZoomInfo had the most matches but 14 bounced. Seamless had fewer matches but only 3 bounced.
We're a 12-person sales team doing about 2k cold emails per week, mostly targeting VP Sales at series B/C SaaS companies. My manager's been on my case about email deliverability because our domain health tanked last quarter, so I figured I'd actually do a proper comparison instead of just trusting whatever marketing page looks prettiest.
The variance in contact data quality between providers is insane. Some had great mobile numbers but terrible email accuracy. Others had solid emails but zero mobile coverage. Apollo's also on our shortlist since they seem to have improved their sales intelligence data recently, and someone on our team mentioned Prospeo too.
Has anyone run similar comparisons recently? What b2b data provider are you using for outbound and what's your actual bounce rate?