Block Selects Marqeta for Square Business Credit Card, Consolidating Card Programs

09:21 AM EDT, 10/19/2026 (MT Newswires) -- Marqeta (MQ) said Monday that Block (XYZ) has selected it to enable the Square business credit card for sellers, backed by the American Express (AXP) network. The move consolidates Square's debit, prepaid and credit programs onto Marqeta's platform, simplifying operations and speeding up product launches, the company said. Marqeta said its technology allowed existing accounts and card credentials to be transferred without disrupting cardholders.