During their most recent earnings call GreenSky announced a new pilot partnership with American Express on home improvement loans; the partnership will focus on Atlanta, Chicago, Dallas, Los Angeles and Tampa within the next 60 days and offer installment loans to consumers; GreenSky first announced a partnership with American Express in the summer of 2018 for financing options for certain customers; the move is part of a broader diversification strategy set out by the lender in recent months. Source.