American software entrepreneur and philanthropist Tim Gill founded the Gill Foundation in 1994, and he serves as co-chair of the foundation’s board of directors. Today, the foundation is one of the nation’s leading funders of efforts to secure full equality for lesbian, gay, bisexual, transgender, and queer people. Since its inception, the Gill Foundation has invested more than $446 million in programs and nonprofit organizations around the nation, substantially contributing to many of the country’s watershed victories for LGBTQ equality. Tim was a leading donor to the state-based, litigation, and political campaigns that led to the freedom to marry nationwide.

A longtime advocate for equality, Tim is also a strong supporter of civic, educational, and humanitarian institutions. He was one of the first major contributors to the Colorado AIDS Project and has long supported local public radio and television through program underwriting. In 1998, he endowed the Tim Gill Professorship in Infectious Diseases at the University of Colorado’s medical school to support HIV research and education. Additionally, Tim has provided significant financial support to organizations serving the broader public, including STEM education initiatives and SmartLabs in schools throughout the Denver metro area, as well as providing more than 5.6 million meals to Coloradans in need during the COVID-19 pandemic.

In recognition of his decades-long commitment to advancing equality and social good, President Joe Biden awarded Tim the Presidential Medal of Freedom in 2025, the nation’s highest civilian honor.

Beyond his philanthropic work, Tim has continued to foster innovation and entrepreneurship. In 2015, he co-founded Josh.ai, a cutting-edge smart home technology start-up that developed a sophisticated, privacy-focused voice-controlled home automation system powered by its own AI technology platform. He is also the founder and former chair of Quark, Inc., the company he launched in 1981 with a $2,000 loan from his parents. He is widely recognized for revolutionizing the publishing industry with the introduction of innovative and affordable page-layout software that democratized access to professional-quality design tools.

Tim and his husband, Scott Miller, live in Denver, Colorado.

“His strong character, unwavering resolve, and indisputable effectiveness in fighting for love and equality for all make him a key figure in our nation’s story of freedom.” – President Joe Biden