Resend

Resend provides an email sending platform with a REST API, SDKs for many languages, SMTP relay, webhooks, and React Email, an open-source library for building email templates. It also includes contact management, broadcast analytics, deliverability tooling such as DKIM/SPF/DMARC setup, dedicated IPs, and suppression lists.

The company serves developers and organizations that send transactional and marketing email. Its pricing has Free, Pro, Scale and Enterprise plans, with paid add-ons for extra domains, dedicated IPs and Single Sign-On.

Resend was founded in 2023 and is headquartered in San Francisco, US, according to its structured data. It joined Y Combinator's winter batch and its blog reports a $18M Series A in December 2024. The website states the team has 53 members and is fully remote, and it lists 14 open roles across engineering, customer success and sales, mostly remote in the Americas and Europe.

Product: Email sending API and platform with SDKs, SMTP relay, webhooks, React Email templates, contact management and deliverability tools