Banc One Corp. and Wells Fargo & Co. have agreed to assist American Express Co. in a high-profile campaign to establish itself as "the money source for small business."

The banking companies will underwrite pre-approved, unsecured lines of credit that American Express will offer to U.S. business customers, Amex announced Tuesday.

Limited Time Offer

Save $400 off your subscription. Special offer ends April 30, 2017.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.