Block Taps Marqeta to Enable Square Credit Card

Marqeta, the card issuing platform traded on Nasdaq as MQ, has been selected by Block to enable the Square Credit Card. The card is Square's business credit product for sellers, and it is backed by the American Express Network.

The arrangement places Marqeta's issuing capabilities behind a card built for Square's seller base. American Express supplies the network backing, while Square provides the business-card proposition. The combination connects a specialist card platform with a seller-focused payments ecosystem.

For Marqeta, the selection adds a named business-card program to its issuing work. For Block, it ties the Square unit to Marqeta's infrastructure as the company builds financial products for sellers. The move also gives American Express another point of contact with business users through Square's channel.

The announcement underscores how card issuing platforms are competing to support branded business credit programs. By bringing together Marqeta's issuing technology, Square's seller relationships and American Express network backing, the Square Credit Card illustrates the layered partnerships behind modern commercial card offerings. It also shows how fintech infrastructure providers can sit behind products distributed through established seller platforms.