Depending on your Amex card, you might be able to transfer your reward points to any of its travel partners. Popular Amex transfer partners include British Airways Executive Club, Emirates Skywards, Hilton Honors and Marriott Bonvoy.
Examples of cards that let you transfer points to American Express transfer partners include the Amex EveryDay Credit Card, the Amex Platinum Card and the Amex Gold Card. American Express also offers several business credit cards that earn Membership Rewards points. Before transferring points, you need to link the airline or hotel loyalty program receiving the points to your Membership Rewards program account.