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Industry WIKI

Digital assets and currencies

Understand assets, networks and trading mechanics with sources you can check.

Trading basics

Block, Inc.

Block, Inc. (formerly Square, 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 has 57 million users and 4 million sellers, processing $241 billion in payments annually.

Finance

Credit Karma

Credit Karma is an American multinational personal finance company founded in 2007. It has been a brand of Intuit since December 2020. It is best known as a free credit and financial management platform, but its features also include monitoring of unclaimed property databases and a tool to identify and dispute credit report errors. The company operates in the United States, Canada and t

Payments & settlement

Square (financial services)

Square is a point-of-sale system for sellers with physical or online stores. Launched in 2009 by Block, Inc. (formerly Square, Inc.), it enables merchants to accept card payments and manage business operations. As of 2024, Square is the U.S. market leader in point-of-sale systems, serving 4 million sellers and processing $228bn annually.