We're changing our name from APIHub to Clearbit, a simpler name that isn't quite so developer centric.
The two main pieces of feedback we got about APIHub was that it was hard to say (especially if you had no idea what an API was), and that the assumption was we were a Mashape competitor.
Choosing a name is hard, especially when you consider the lack of available domain names and the plethora of trademarks. Aside from that, I think the important thing to keep in mind is not be pigeonholed by a name. Choose something unique and build a brand around it.
So from today APIHub is Clearbit!
Note: Our API endpoints have changed, but the old domain will work forever.