Bay Partners is a venture capital firm based in Menlo Park, California. The firm seeks to invest in consumer service, semiconductor, technology-enabled service, e-commerce, mobile, manufacturing, security, financial service, big data, logistics, biotechnology, advertising, therapeutic, communication, healthcare, software, energy, and hardware sectors.
Bay Partners was founded by John Freidenrich in 1976, it has funded over 200 information technology and healthcare businesses.
In January 2005, Bay Partners announced its Bay Partners XI fund with a total raised amount of $290 million. In January 2001, they announced their Bay Partners X fund with a total raised amount of $475 million.