LinkedIn post · Jun 2026
Signals recent traction after Product Hunt launch and reiterates the free-forever positioning.
Company research
Public company, workplace, funding, and market signals
Overview
Upstream is a Paris-based AI-native email client for teams that puts humans and agents in the same inbox, with split inboxes, AI-drafted replies in the user's voice, automated follow-ups, and shared team collaboration on top of email.
Primary product
AI-native team email client / inbox for humans and agents
Founded
2023
Headquarters
Paris, Île-de-France, France
Team size
1-10
Work style
Onsite
Industry
Technology, Information and Internet
Sub-industry
AI email client and team messaging software
Offices
Station F, Paris, Île-de-France, France
Paris 75020, France
Business model
B2B SaaS
freemium
per-seat subscription
Funding
Stage
pre-seed
Total raised
$4M
Latest round
Pre-seed · Jun 2026
Latest amount
$3M
People & investors
Leadership
Co-founder & CEO
Co-founder & CTO
Founding Product Engineer
Founding Product Designer
Work & culture
The company presents a mission-driven, in-person culture that values fast execution, creativity, collaboration, kindness, and diversity of viewpoints, with a light-hearted hands-on style.
Work style
Onsite
Visa sponsorship
Yes
Compensation
Public hiring signal: a Founding Product Engineer role was listed at €75K–€100K EUR in Paris; no broader public comp bands were found.
Benefits
visa sponsorship
relocation support
Station F office in Paris
Product & market
Pricing
Free tier plus per-member monthly subscriptions billed yearly for Pro and Max plans
Differentiators
- —Designed for humans and agents in the same inbox
- —AI drafts replies in the user's exact voice
- —Split inboxes prioritize what needs attention
- —Automatic follow-ups and task handling
- —Team collaboration features built directly into email
- —Supports external agents through MCP
Technology
React
React Native
Model Context Protocol (MCP)
Claude integration
Codex integration
Granola integration
Notion integration
Google Drive integration
Google Calendar integration
Gmail support
Customers
teams
professionals
beta users
design partners
email-heavy knowledge workers
Competitors
Gmail
Superhuman
Shortwave
Fyxer AI
Scale & contact
Latest news
LinkedIn post · Jun 2026
Primary company announcement confirming the funding round and naming several angel investors from Framer, Algolia, Webflow, Alan, Asana, and Station F.
The SaaS News · Jun 2026
Summarizes the $3M pre-seed round, founders, Station F base, and investor group.
Tech.eu · Jun 2026
Reports the $3M pre-seed round, the public launch, investor roster, and the product thesis of an AI-native inbox for humans and agents.
TechFundingNews · Jun 2026
Covers the public launch from stealth, founding team, $3M pre-seed, and the product's agentic email workflow.
Jobs and careers at Upstream
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