Billionaire Profile
Jim McKelvey
Global Rank
#2110

Image: Public domain | via Wikimedia Commons

Jim McKelvey

CEO, Block, Inc.
US
Real-Time Net Worth
$1.7B
As of December 2025
Age
60
Source
Mobile payments
Industry
technology
Citizenship
US

Biography

James Morgan McKelvey Jr. is an American entrepreneur, inventor, philanthropist, and artist, widely recognized for co-founding Block, Inc. (formerly Square) with Jack Dorsey in 2009. This venture revolutionized mobile payments, making it easier for small businesses to accept credit card transactions. McKelvey's net worth is estimated at $1.7 billion as of 2024, primarily derived from his stake in Block and his entrepreneurial ventures. Beyond his business success, he is known for his contributions to the St. Louis community, including founding LaunchCode and Third Degree Glass Factory. He is known for his leadership principles and has authored books on business and art.

Wealth Over Time

In-Depth Profile

Early Life

James Morgan McKelvey Jr. was born and raised in St. Louis, Missouri. He attended Ladue Horton Watkins High School and later graduated from Washington University in St. Louis with degrees in economics and computer science. During his time at Washington University, he worked as a contractor for IBM and also pursued his passion for glassblowing, which would later inspire one of his ventures.

Rise to Success

McKelvey's breakthrough came in 2009 when he co-founded Square (now Block, Inc.) with Jack Dorsey. The idea stemmed from his frustration with the inability to process credit card payments at his glassblowing studio. Square's innovative mobile payment system quickly gained traction, democratizing financial services for small businesses. He served as Square's chairman until 2010 and remains on Block's board.

Key Business Strategies

Square's success can be attributed to several key strategies. The company focused on user-friendly technology, providing simple and affordable tools for businesses. They expanded their services beyond payment processing, including Cash App, Square Capital, and online payment solutions. This diversification and international expansion broadened their customer base and drove revenue growth.

Philanthropy

McKelvey is deeply involved in philanthropy. He founded LaunchCode, a non-profit organization that offers tech education and job placement. He has also made significant donations to Washington University in St. Louis, including a $15 million gift to name the James McKelvey School of Engineering in honor of his father.

Career Milestones

1989

Founded Mira Digital Publishing

Co-founded Mira Digital Publishing, a leader in electronic publishing for scientific conferences.

2002

Founded Third Degree Glass Factory

Co-founded Third Degree Glass Factory, a glass art studio and gallery in St. Louis.

2009

Co-founded Square (now Block, Inc.)

Co-founded Square with Jack Dorsey, revolutionizing mobile payments.

2013

Founded LaunchCode

Co-founded LaunchCode, a non-profit organization providing tech education and job placement.

2017

Appointed to the Federal Reserve Bank of St. Louis

Appointed as an Independent Director of the Federal Reserve Bank of St. Louis.

2016

Founded Invisibly

Founded Invisibly, a company focused on digital content monetization.

Philanthropy & Social Impact

Education

LaunchCode

Information not available

A non-profit organization that provides free tech education and job placement.

Education

Washington University in St. Louis

$15M

Donated $15 million to name a new engineering building.

Business Philosophy & Leadership

Notable Quotes

"“Philanthropy should be a platform for structural innovation. It's not just capital that changes the world—it's creativity.”"

"I have this habit of starting companies, but I can't run them. If I stay around too long, I become disruptive."

Leadership Principles

Innovation

Focus on creating interlocking solutions to build a competitive advantage.

Entrepreneurship

Embracing new ideas and disrupting existing markets.