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AI agents

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.

sources
1
Evidence entries preserved.
affiliations
1
Y Combinator
competitors
6
Mapped from High Signal graph features.
status
generated
D1 lookup
last updated
2026-07-15
16:41 UTC
source evidence
Why this company exists here

Y Combinator

yc-company-directory #2550

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.

source
generated read
High Signal interpretation

Upstream is classified as AI agents from source descriptions and fund-directory context. Similar companies below are ranked from offline product facets and meaningful description overlap; category and source affiliation can only strengthen an existing product match. For lookup-created rows, the profile starts as pending enrichment until deeper source collection runs.

mapping method
Similarity graph

Local clusters rerank extracted product concepts and description terms. The generated graph remains the fallback for sparse descriptions: offline reciprocal product-similarity graph: extracted concepts + description terms + bounded category/affiliation boosts. Minimum fallback score: 0; max competitors: 6.

discovery cluster

Companies similar to Upstream

AI agents · 6 peers

A deterministic local cluster built from offline product facets and meaningful description terms. Category and selected-institution affiliation provide bounded tie-breaks. Open any peer to continue exploring its cluster.

Gojiberry AI

match 57

Gojiberry is building the AI GTM team for B2B companies. We start with outbound: Gojiberry finds buyers showing intent, enriches them, reaches out, follows up, handles replies, and books qualified meetings. Companies use Gojiberry to replace the old way of doing outbound: buying tools, hiring SDRs & agencies, testing lists, writing messages, and guessing what works. Gojiberry turns it into one AI team that finds buyers and books meetings. Every campaign makes Gojiberry smarter. It learns which b

shared product terms: find, follow, up, replie; shared affiliation: Y Combinator

Maywood

match 41

Maywood is the first finance-compliant proactive AI that runs 24/7, working across your network, pipeline, and active processes, running constantly in the background and surfacing things you'd otherwise miss. It tracks relationships and sector context to flag when a target is gearing up for a process (and drafts the outreach in your voice), watches network activity across LinkedIn, news, and conference follow-ups, and surfaces where active processes stand, including what's at risk since you last

shared product terms: up, draft, voice, follow; shared affiliation: Y Combinator

Odo

match 36

Odo is your email assistant because you deserve a better morning. Odo can help you organize, draft emails, and follow-up effortlessly after meetings.

shared product terms: draft, follow, up, meeting; same category: AI agents; shared affiliation: Y Combinator

HeyClicky

match 36

HeyClicky sits right next to your cursor and sees everything you see. ask a question out loud and it walks you through whatever you're working on. Or say “HeyClicky Agent” and it'll spin up an agent to build, research, or do whatever for you in the background.

shared product terms: right, ask, up, do; same category: AI agents; shared affiliation: Y Combinator

Char

match 28

Char is a daily notepad that finishes your todos for you. Type a checkbox, and an agent picks it up — researching, drafting, or scheduling on your behalf. Stay in command. Char does the work.

shared product terms: up, draft, schedul; same category: AI agents; shared affiliation: Y Combinator

Slashy

match 17

AI that helps you fly through your inbox.

shared product terms: fly, inbox; shared affiliation: Y Combinator