Mayfield Fund is a venture capital and private equity firm founded in 1969 and headquartered in Menlo Park, California, with an additional office in Mumbai, India. It specializes in early-stage to growth-capital investments in technology companies across sectors including enterprise software, data, communications and wireless, semiconductors, consumer internet, health tech, energy tech, and IT-enabled services. The firm typically targets companies with strong growth potential, supports co-investment networks and lead or co-lead roles in rounds, and often participates in follow-on financing. It pursues global opportunities, with a focus on California (San Francisco Bay Area) and cross-border investments in Europe, India, and China, as well as substantial operations in India and China. Investments range from seed to growth, including debt in select situations, and it emphasizes collaboration with founders from inception to scale iconic enterprise, AI-first, and health-tech ventures. The firm avoids public markets and leverages its global network and experience to help portfolio companies scale.