Skip to content
COLD START / catalog / c/resendretrieved 2026-07-23T15:29 UTC · 13 sources read

Resend

Resend provides an email API for developers to build, test, and send transactional emails at scale.

resend.com · San Francisco

CALL NO.CS·RESEND·26
StageSeries ADecember 2024 · led by Andreessen Horowitz[1][4][5][8]
Raised$22Mdisclosed rounds[7][9][10][11]
Headcount50as of Jun 2026[7]
Valuationnot publicly disclosedno source in ledger
Founded2023[3][7]
Money

Raised $22M across disclosed rounds.[7][9][10][11]

Series A closed December 2024, led by Andreessen Horowitz.[1][4][5][8]

post-money valuation is not publicly disclosed.

Named investors include Andreessen Horowitz, Y Combinator, SV Angel, Basecase, Ali Rowghani, Eric Muntz, Elad Gil, Lachy Groom, Dylan Field, Guillermo Rauch, Calvin French-Owen, Michael Grinich, Paul Copplestone, David Cramer, Alana Goyal.[2][4][5][6]

People

Zeno Rocha, Founder & CEO[1][2][3][9][10][11]

Bu Kinoshita, Co-Founder & CTO[1][2][3][9][10][11]

Jonni Lundy, Co-Founder & COO[1][2][3][9][10][11]

Zeh Fernandes, Founding Designer[7]

Trey Knowles, Founding Account Executive[7]

Signals
Jul 20 2026hiringResend opens first Marketing role: Growth Marketer company claim, not independently confirmed[7]
Jul 16 2026launchResend is now a GitHub secret scanning partner company claim, not independently confirmed[7]
Jul 14 2026launchResend adds OAuth to the API company claim, not independently confirmed[7]
Jul 13 2026launchResend available as a Claude Connector company claim, not independently confirmed[7]
Jul 9 2026hiringResend hires Matt Gilbert (ex-Mailchimp) for Trust & Safety company claim, not independently confirmed[7]
Jul 6 2026launchResend launches Vercel Marketplace integration company claim, not independently confirmed[7]
Comps

SendGrid · sendgrid.com · Same buyer (developers sending transactional email), same job to be done (email API), same budget line (email infrastructure). Named as a direct competitor by Resend's YC profile.[2][3]

Mailgun · mailgun.com · Same buyer (developers sending transactional email), same job to be done (email API), same budget line. Named as a direct competitor by TechCrunch.[2]

Postmark · postmarkapp.com · Same buyer (developers sending transactional email), same job to be done (email API), same budget line. Named as a direct competitor by Resend's YC profile.[3]

AWS SES · aws.amazon.com/ses · Same buyer (developers sending transactional email), same job to be done (email API). Named as a direct alternative by Resend's YC profile.[3]

Risk

The customer proof is company-sourced only. No independent source in this ledger confirms it.[7]

Next question

Ask for one referenceable production customer.

Not a recommendation. The first thing this ledger cannot answer.

Investor Lens
Why care
The case
What to learn next
Pay attention to
How it wins

Filled in the side panel for invited readers. This card carries sourced facts only.

Sourcestracings · 13

Jul 2026 · a16z.com

unknown

Jul 2026 · ycombinator.com

unknown

Jul 2026 · zenorocha.com

reported

Jul 2026 · resend.com

company

Jul 2026 · resend.com

company

Jul 2026 · resend.com

company

Jul 2026 · linkedin.com

vendor

Jul 2026 · linkedin.com

vendor

Jul 2026 · linkedin.com

vendor

Jul 2026 · linkedin.com

vendor

Jul 2026 · linkedin.com

vendor

Resend

CALL NO.CS·RESEND·26

Resend provides an email API for developers to build, test, and send transactional emails at scale.

resend.com · San Francisco

StageSeries A
Raised$22M
Headcount50
Valuationnot publicly disclosed
Founded2023
CompsSendGrid +3

Ask for one referenceable production customer.

Not a recommendation. The first thing this ledger cannot answer.