Why it ranks
How the rank works9signal of 100 · rising 3
- team of 7Team size · YC's directory+4.7
- went through YCProgram · this site+4
A sum of public facts, not a judgement and not investment advice.
Competitors
| Company | Category | Status | Program |
|---|---|---|---|
| AI | Active | YCS25 | |
| AI | Active | YCW25 |
Adjacent
Post.fmShared: inbox, productivityYC S10LondonStartup →
ScapeShared: inbox, productivityYC S24StockholmStartup →
CraterShared: inboxNeoStartup →
OrchidShared: handle, reply, draftYC X25San FranciscoStartup →
GliderShared: inbox, productivityYC W12PortlandStartup →
| Company | Category | Status | Program |
|---|---|---|---|
| Post.fmShared: inbox, productivityYC S10InactiveOther | Other | Inactive | YCS10 |
| AI, Devtools | Active | YCS24 | |
| Other | Not stated | Neo | |
| AI | Active | YCX25 | |
| Other | Inactive | YCW12 |
Also from S23 in AI
All of S23About Upstream
Your inbox, handled for you. Upstream's agents sort the noise, draft replies in your exact voice, follow up at the right time, and do what you ask - like finding receipts or scheduling meetings - so you can fly through your inbox and have fun doing it.
- YC batch
- S23 · Summer 2023
- Status, per YC
- Active
- Category
- AI
- Team size
- 7
- Location
- Paris, Île-de-France, France
- Checked
- 7h ago
Changes seen
Rewrote its one-liner; it read "The first inbox designed for humans and agents"
Upstream: questions
Which YC batch was Upstream in?
Upstream was in Y Combinator's Summer 2023 batch (S23).
Is Upstream still active?
Y Combinator lists Upstream as active.
Where is Upstream based?
Upstream lists Paris, Île-de-France, France as its location on YC's directory.