David Hassell

David Hassell is a prominent American entrepreneur known for his role as the co-founder and Executive Chairman of 15Five, a performance management software company. Founded in 2011, 15Five focuses on enhancing employee engagement and performance through continuous feedback and communication. The platform allows employees to share their experiences and challenges, enabling managers to address issues proactively and support team development.12

Hassell's entrepreneurial journey began with the co-founding of AdClip Networks in 1999, which later became Endai Worldwide, a company specializing in online marketing technologies. He has also been involved in various ventures, including Kite Adventures, which offers adventure travel experiences.12 His leadership in the entrepreneurial community is notable, having served as the President of the San Francisco chapter of the Entrepreneurs' Organization, a global network for entrepreneurs.12

Hassell holds a Bachelor of Science in Computer Engineering from Tufts University and has been recognized for his networking capabilities, earning the title of "The Most Connected Man You Don’t Know in Silicon Valley" from Forbes.125 His vision for 15Five is rooted in the belief that effective communication and feedback can significantly enhance workplace culture and employee satisfaction.34