Founded in 2023 by Zeno Rocha and Bu Kinoshita through Y Combinator, Resend was built because the existing email infrastructure for developers — dominated by Sendgrid and AWS SES — was outdated, complex, and had poor developer experience. Resend provides a clean REST API, React Email support for building beautiful templates with code, and a modern dashboard with real-time delivery insights. The company raised $3 million in seed funding from Y Combinator and prominent angel investors in 2023 and quickly became one of the most loved developer tools of the year, spreading entirely through word of mouth among the developer community. Resend is used by thousands of companies and developer teams including Raycast, Supabase, and Cal.com for their transactional email infrastructure.
Active Founders
Zeno Rocha
Founder / CEO
Zeno Rocha is the co-founder and CEO of Resend. A Brazilian developer and prolific open-source contributor, he previously worked as VP of Developer Experience at WorkOS and as an engineering leader at Auth0. Zeno is one of the most well-known figures in the developer community with over 20,000 GitHub followers and a track record of building tools that developers love. His hands-on understanding of the email developer experience gap drove him to build Resend as the modern solution the industry had been waiting for.
Resend