WEX Inc. and OnDeck announced a partnership in which WEX will offer business financing from OnDeck to its small business customers. Under terms of the agreement, WEX customers will gain access to the OnDeck product suite of loans up to $500,000 and lines of credit up to $100,000. Qualifying customers will be able to use the OnDeck financing to invest in their business' growth, manage cash flow or finance their purchase of WEX products and services.