Reverse Email Lookup Shootout: Hunter, Clearbit, Datagma, and PDL Tested on 500 Real B2B Addresses

A VP of Sales at a SaaS company sent me 500 inbound form fills last month. Names: none. Company: none. Just email addresses and a note: "We need to know who these people are before our AEs call them." I spent three days running every major reverse lookup tool against those same 500 addresses. What I found was uncomfortable: almost every published comparison I'd read was measuring the wrong thing. Why Every Reverse Lookup Comparison You've Read Is Wrong Most "email lookup" benchmarks — including