Mayfield Fund is a venture capital firm founded in 1969 and based in California. Managing over $3 billion across twenty US funds, it follows a ‘For Founders. By Founders. For Life.’ philosophy. The firm leads investments at Seed, Series A, and Series B stages, with a people-first approach that combines capital with hands-on mentorship. Mayfield has supported more than 120 IPOs and over 225 M&A transactions, reflecting its long-standing backing of technology entrepreneurs from start-up through growth.
Mayfield’s investment strategy covers enterprise and consumer technologies, fintech, mobility solutions, AI-driven tools, and healthcare innovations. The team shows a strong interest in AI’s next phase, known as the collaborative intelligence era, where human experts and AI teammates work together. This includes backing companies across the Collaborative Intelligence as a Service stack and funding initiatives such as the Mayfield AI Garage, a $100 million incubator program. The firm also maintains a dedicated presence in India to tap into emerging markets. The firm’s portfolio features companies such as Lyft, Marketo, Poshmark, and ServiceMax.
Clean technology and battery research have been part of Mayfield’s priorities, with a focus on decarbonization and planetary health. Early support for SolarCity illustrates this long-term commitment. Recent investments include Chemix, which employs AI to speed up electric vehicle battery development and monitoring, and Windfall Bio, a bioconversion platform for capturing methane and producing organic fertilizer. With partners like Todd Kimmel, who brings decades of cleantech expertise, Mayfield continues to back solutions in sustainable materials and the circular economy.
