Stamp
YC W25 · Active · The AI Secretary for Email and Calendar.
Competitors
| Company | Category | Status | Program |
|---|---|---|---|
 Post.fmShared: inbox, email, productivityInactiveOther | Other | Inactive | YCS10 |
 UpstreamShared: inbox, noise, doingActiveAI | AI | Active | YCS23 |
 ScapeShared: inbox, email, productivityActiveAI, Devtools | AI, Devtools | Active | YCS24 |
 SlashyShared: inbox, email, productivityActiveAI | AI | Active | YCS25 |
 GliderShared: inbox, email, filterInactiveOther | Other | Inactive | YCW12 |
Adjacent
| Company | Category | Status | Program |
|---|---|---|---|
 AkiflowShared: calendar, task, productivityActiveAI | AI | Active | YCS20 |
 MailTimeShared: email client, productivityActiveAI | AI | Active | YCW16 |
 EmailioShared: email, productivityActiveOther | Other | Active | YCW14 |
 FollowUpThenShared: email client, second, productivityActiveAI | AI | Active | YCS17 |
 SpeckShared: action item, task, automateAcquiredAI | AI | Acquired | YCW24 |
Also from W25 in AI
All of W25| Company | Category | Status |
|---|---|---|
 .WaveContinuous inference for streaming AI modelsActiveAI, Devtools | AI, Devtools | Active |
 10xAI Sales Teams for Dental PracticesActiveAI, Data | AI, Data | Active |
 a0.devWe make mobile apps using AI.ActiveAI, Devtools | AI, Devtools | Active |
 A1Zap by A1BaseThe social network layer for AI appsActiveAI, Devtools | AI, Devtools | Active |
 AdamAI Powered CADActiveAI, Devtools | AI, Devtools | Active |
 AfterQueryApplied research lab curating data solutions for foundation model…ActiveAI, Data, Devtools | AI, Data, Devtools | Active |
Founders
- Archit MehtaFounder/CEO
About Stamp
Stamp is the first AI Native inbox. It's more than an email client, though -- it's like your second brain. Stamp can respond to emails in your voice, organize your inbox to filter out the noise, keep track of action items, and automate essentially every task you're doing manually in your inbox today.
- YC batch
- W25 · Winter 2025
- Status, per YC
- Active
- Category
- AI
- Team size
- 1
- Location
- San Francisco, CA, USA
- Founded
- 2024
- Checked
- 1h ago
Stamp: questions
Which YC batch was Stamp in?
Stamp was in Y Combinator's Winter 2025 batch (W25).
Is Stamp still active?
Y Combinator lists Stamp as active.
Who founded Stamp?
Stamp's founders, as listed on its YC page: Archit Mehta (Founder/CEO).
Where is Stamp based?
Stamp lists San Francisco, CA, USA as its location on YC's directory.
Sources: each program's public company list, read twice a week. Not affiliated with Y Combinator or any other program. Logos via logo.dev; trademarks belong to their owners.