The $295-annual-fee Graphite Business Cash Unlimited Card from American Express focuses on small and midsized companies. The opportunity to carry a revolving credit balance up to a payover- time limit and no preset spending limit are cash flow management options built into the card. Unlike most small business cards, this card offers cash back on all purchases. Cardholders earn 2% cash back on all eligible business purchases and 5% cash back when airline and prepaid hotel transactions are booked through American Express Travel. There is no cap on the amount of cash back that can be earned. ...