BLBlock, Inc. is an American technology company and financial services provider for consumers and merchants. Founded in 2009 by Jack Dorsey, it is the U.S. market leader in point-of-sale systems. As of 2024, Block serves 57 million users and 4 million sellers, processing $241 billion in payments annually.
Company background via Wikipedia and Wikidata.
Square merchant base and Cash App cross-sell, valued as if neither grows.