It’s still a work in progress, but I expect to be done by the end of the week. You can find it here: Telemarketing Company/Call Center Directory.
It’s a call center directory based on the listings to be found in the Yahoo Directory and DMOZ- two of the most respected directories on the web.
I plan to add additional directory sources once I’m done with these two.
What I’m finding so far is that a lot of the listings are out of date- leading to websites that no longer exist, different companies, or unrelated businesses. They also don’t allow you to narrow your search to inbound, outbound, B2B, or B2C call centers (a function which I’ve added to my directory).
You can add a call center to the directory by using this form here: Submit A Listing. All submissions are manually reviewed.