Before launching Willow, Joe Kiani founded Masimo in 1989, a global medical technology company known for breakthrough patient monitoring technologies. Under his leadership as Chairman and CEO, Masimo grew from a startup in his garage into a publicly traded enterprise with over $2 billion in revenue. Its technologies, including Signal Extraction Technology (SET), are used on more than 200 million patients annually and have helped detect critical congenital heart disease, reduce infant blindness, save lives, and lower healthcare costs.
 

Kiani continues to champion transformative innovation across healthcare and technology. He is co-founder and serves as CEO of Like Minded Labs, a media technology company reimagining how people connect, communicate, and collaborate. Like Minded Labs recently launched Coresee, a HIPPA- compliant, precision-grade virtual collaboration platform purpose-built for professional workflows that offers high-resolution, persistent workspaces where teams can create, review, and document work with continuity and clarity. 
 

He also serves as Chairman of Clarity, a breast cancer-focused medtech company, and SMS Biotech, which democratizes adult stem cell technologies for human health. He is an investor and board member at CDX Medical Technologies, a pioneer in extracorporeal membrane oxygenation (ECMO) pump innovation; MY01, which is transforming the diagnosis of limb perfusion injuries, Gulf Medical Technologies (GMT) a pioneering innovator specializing in surgical vision technology for robotic and laparoscopic procedures, and Vasonics, the leader in research ultrasound. Joe Kiani is director of the boards of; and IRAMED, a leader in MRI-compatible patient monitoring and infusion systems and Scripps Research, a pioneering model for non-profit research institutes to address a variety of health challenges.
 

In 2012, Joe Kiani founded the Patient Safety Movement Foundation to unite hospitals, researchers, engineers, executives, doctors and nurses to eliminate preventable hospital deaths. He serves on the board of numerous healthcare institutions, including Rady Children’s Hospital.
 

His contributions to healthcare have earned him multiple awards, including the Society of Critical Care Innovation Award, the Robert Wears Patient Safety Award, TIME’s Best Inventions of 2024 for the W1 Medical Watch and Ernst & Young’s Entrepreneur of the Year in Life Sciences. In 2021, he was appointed to the President’s Council of Advisors on Science and Technology, where he contributed to the PCAST patient safety report.
 

Kiani founded the Kiani Preserve in the Santa Ynez Valley, focused on regenerative farming, with its first wine vintage released in 2025. He holds bachelor’s and master’s degrees in electrical engineering from San Diego State University and honorary doctorates from SDSU and Chapman University. Kiani remains tirelessly dedicated to improving patient lives, advancing safety and strengthening the systems that support them.