I've tried Norbert at the same time as some other services to compare and while Norbert will find the email, the other's won't. The others seem to just comb the companies website which I've already done. I don't know how Norbert does it but it works and it's rare they can't find an email. And when they can't, nobody can.

I also like their trial and payment system. I don't have to subscribe as I can buy a certain amount of credits at a time whenever needed. Review collected by and hosted on G2.com.

I have to be honest I don't have any complaints. Review collected by and hosted on G2.com.