According to the information provided on the site, Ford received the most in contributions from Credit Suisse Group, which has given more than $37,000 toward the campaign. Corker received the most from Miller & Martin, who have given more than $39,000.
Information on OpenSecrets.org "lists the top donors to each candidate so far in the current election cycle. The organizations themselves did not donate, rather the money came from the organization's PAC, its individual members or employees or owners, and those individuals' immediate families. Organization totals include subsidiaries and affiliates."