“Y Combinator-backed Next Caller, the makers of a caller ID system for businesses offering access to a secondary database containing a caller’s personal information — including their name, phone, number and, if available, email — has come a long way since its launch at TechCrunch Disrupt last fall. Since then, the company has grown from just a handful of users to 240 paying customers, and has now signed distribution deals with ZenDesk and Nextiva, who will offer the service to their existing install bases.”