Resend
Developer-first email platform. Compose with React components, send transactional and marketing email through a single API. Used by Vercel, Cal.com, Linear.
- Location
- San Francisco, United States
- Raised
- $18M+
- Stage
- Series A
- Founded
- 2023
- Category
- Dev Tools
- Funding
- VC-backed
- Team
- 11-50
Funding figures as of Jul 2025 · not independently verified
Founders of Resend
- Zeno Rocha
- Bu Kinoshita
Investors backing Resend
- Y Combinator
- SV Angel
- Guillermo Rauch
Frequently asked questions
What does Resend do?
Developer-first email platform. Compose with React components, send transactional and marketing email through a single API. Used by Vercel, Cal.com, Linear.
Where is Resend based?
Resend is based in San Francisco, United States.
When was Resend founded?
Resend was founded in 2023.
How much has Resend raised?
Resend has raised $18M+ in their Series A round as of Jul 2025.
Who founded Resend?
Resend was founded by Zeno Rocha, Bu Kinoshita.
Who has invested in Resend?
Resend is backed by Y Combinator, SV Angel, Guillermo Rauch.
How Resend would pitch themselves
○ Auto-generated01Target customer
Developers — built on React — the core audience Resend's product is built around.
02Problem they solve
Developer-first email platform. Compose with React components, send transactional and marketing email through a single API. Used by Vercel, Cal.com, Linear. The category has historically been served by tools that miss the modern workflow this product is built around.
03Key differentiator
Resend differentiates on email api for developers — built on react. Backed by Y Combinator + SV Angel, $18M+ raised — the company has resources + validation to compound this thesis. Founded by Zeno Rocha + team.
04Go-to-market strategy
Early-stage GTM — typically product-led growth (free tier or low-friction onboarding) paired with founder-led sales for the first 100 customers. Heavy content marketing + community presence on Twitter/X, LinkedIn, and category-specific Slack groups.