Cartera – A Rakuten Company | 3,019 followers on LinkedIn. Reward more. Increase Loyalty. | We make every day more rewarding. Cartera partners with major airlines and top banks who offer their customers loyalty programs. Since our launch in 2005, we’ve improved their customers’ experiences by helping them earn more of the miles, points, or cash back they want by making it easy for them to shop and earn currency with 1,500 retailers they already know and love.