Adi Singh is Co-Founder of AgentMail (YC S25), the first email provider built natively for AI agents, giving autonomous systems their own dedicated inboxes via a developer-first API platform.

Adi graduated from the University of Michigan and built a strong foundation as an investor at top-tier firms including Accel, StepStone Group, and Flex Capital, before transitioning into operator roles across accounting, edtech, and e-commerce.

Adi brings a rare blend of venture capital perspective and hands-on operational experience to the agentic AI infrastructure space, positioning AgentMail at the intersection of developer tooling and the emerging agent economy.

AgentMail was accepted into Y Combinator's Summer 2025 batch and has since raised a $6M seed round led by General Catalyst, with participation from Paul Graham, Dharmesh Shah, and Karim Atiyeh.

AgentMail now serves over 500 B2B customers, supports hundreds of thousands of agent inboxes, and counts thousands of developers building autonomous virtual employees on its platform.