Square is a global technology company specializing in financial services and commerce solutions. Founded in 2009, Square revolutionized payment acceptance with the introduction of the first mobile card reader. The company serves over four million sellers worldwide, from individual entrepreneurs to large businesses. Square provides an integrated ecosystem of commerce solutions, including payment processing hardware, point of sale systems, and business management tools. Their offerings range from mobile card readers and all-in-one payment devices to specialized software for retail and restaurants. Square also supports service-based businesses with appointment management and e-commerce solutions through Square Online. Additionally, Square Loans helps entrepreneurs access growth capital. In December 2021, Square, Inc. became Block, Inc. to reflect its broader portfolio while maintaining the Square brand for its core Seller business. Square has expanded its presence internationally, operating in markets such as Canada, Japan, Australia, the UK, and Spain.