Jack Patrick Dorsey, a prominent figure in the tech industry, is widely recognized as the co-founder of Twitter and the mastermind behind Block, Inc. (formerly Square, Inc.). As of 2025, Dorsey, aged 48, boasts an estimated net worth of $5.21 billion, according to recent data. Despite a slight dip of $72.78 million in his fortune, Dorsey remains a tech giant and an influential entrepreneur.
Early Life and Education
Born on November 19, 1976, in St. Louis, Missouri, Dorsey grew up with an early fascination for computers and dispatch routing software. He attended Bishop DuBourg High School before enrolling at the University of Missouri–Rolla. Later, he transferred to New York University, but dropped out one semester short of graduation to pursue entrepreneurial ventures.
The Rise of Twitter
Dorsey co-founded Twitter, Inc. in 2006 and served as its CEO from 2008 to 2010, and again from 2015 to 2021. Under his leadership, Twitter transformed from a microblogging experiment into a global social media powerhouse. Dorsey oversaw key developments such as expanding the platform’s character limit beyond the original 140 characters and navigating complex debates surrounding content moderation and political advertising. Despite stepping down as CEO in 2021, his influence on Twitter’s evolution remains indelible.
Building Block, Inc.
While Twitter made Dorsey a household name, his financial windfall largely stems from Block, Inc., formerly known as Square, Inc. Co-founded in 2009, Block revolutionized the financial services space by enabling businesses to accept debit and credit card payments on mobile devices. Dorsey, as the CEO, spearheaded Square’s transformation into a multi-faceted financial technology firm, which later rebranded to Block, Inc. in 2021 to reflect its growing range of services, including cryptocurrency integration.
Career Achievements and Ventures
In addition to his work with Twitter and Block, Dorsey has also supported innovative ventures such as Bluesky Social, a Twitter spin-off focused on decentralizing social media. He also holds board positions at major organizations, including The Walt Disney Company and the Berggruen Institute’s Governance Center.
His accolades include being named one of MIT Technology Review’s top 35 innovators under 35 in 2008, winning The Wall Street Journal’s “Innovator of the Year Award” in 2012, and securing the “Founder of the Year” title at the 5th Annual Crunchies Awards.
Philanthropic Efforts
Dorsey is as committed to philanthropy as he is to tech innovation. He fully funded approximately 600 Missouri public school projects via DonorsChoose. In April 2020, he pledged $1 billion of his wealth (approximately 28% at the time) to fund COVID-19 relief, universal basic income, and girls’ education and health initiatives. His philanthropic venture, Start Small LLC, publicly tracks these contributions.
Personal Life and Interests
Jack Dorsey resides in the Sea Cliff neighborhood of San Francisco. He is a well-known practitioner of Vipassanā meditation and has a deep interest in wellness practices like fasting and ice baths. Dorsey is an avid electronic music enthusiast and even dabbles in DJing.
Additionally, Dorsey is a vocal advocate for Bitcoin and blockchain technology and has endorsed the Nostr social networking protocol. He has expressed political interests, supporting candidates like Tulsi Gabbard and Andrew Yang during the 2020 U.S. presidential elections.
Wealth Breakdown
While Dorsey has cashed out significant amounts from Twitter, including nearly $1 billion after Elon Musk’s 2022 acquisition, his primary source of wealth continues to be Block, Inc., where he holds around 43 million shares, valued at approximately $2.5 billion. He also has diversified his portfolio with additional investments and personal assets totaling roughly $1 billion.
Legacy and Outlook
Dorsey’s career, marked by groundbreaking tech innovation and impactful philanthropy, positions him as one of the most influential figures in the global tech industry. His ability to bridge finance, communication, and social good has inspired a new generation of entrepreneurs who seek to blend success with purpose.
As of 2025, Jack Dorsey’s net worth may fluctuate, but his legacy as a tech pioneer and social impact leader is firmly cemented.
