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Re:How We Unexpectedly Got 60K Users in 60 Hours (2012) by pdx on Tuesday September 10, 2013 @09:14AM (#6359771)
I second this question. What are the best databases out there, that map IP addresses of office space, not web servers, to company names?

I see some products out there that purport to do this, but they aren't saying where they're getting their data. I'm really curious how they are creating such a database.

LinkedIn, for example, would have such a db, since people surf LinkedIn from work. However, they're not granting access to it, I'm sure.

Who else could generate a strong database like this?

Re:How We Unexpectedly Got 60K Users in 60 Hours (2012) by sparkman55 on Tuesday September 10, 2013 @11:01AM (#6360412)
We used a company called LeadLander for this when we were in the B2B space. Since qualifying leads and negotiating a deal were harder than lead identification for us, this was mostly a vanity / fun project, although it was successful in motivating us.