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Jack Dorsey
Jack Dorsey is an American entrepreneur who co-founded Twitter and co-founded Square (now Block), shaping both online communication and fintech payments. His work sits at the intersection of social networks, real-time information, and digital money.
Founder and builder
Jack Dorsey co-founded Twitter and later founded Square, now Block, building companies around communication software and digital payments. His career connects consumer technology entrepreneurship with financial services, and his businesses have shaped how people publish short messages and how small merchants accept electronic payments.
Leadership at Block
Block’s 2026 proxy identifies Dorsey as Block Head and Chairperson. The business record already published elsewhere in HD Universe is being proposed for Tech Founders, Entrepreneurs and Corporate CEOs because his roles span company creation, executive leadership and scaled technology products. This linked review leaves the stored birth inputs unchanged.