Hi Seachers - question for everyone.

On the proprietary sourcing side, I have been using a vendor I found on Guru.com and paying $0.25/row for data scrubbing. While the work is good, it is not great. A scrubber is needed as the lists I am buying from DataAxle are pretty sub-par when it comes to sales range, employee counts, and email addresses.

What are the best vendors you have found for scrubbing?