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Stream.io

Other B2B Software · Boulder, United States · Founded 2015

Stream is a company that provides API-first solutions for building chat messaging and activity feeds for applications. Their products are targeted at developers and businesses of all sizes, from startups to enterprises, that want to integrate scalable and feature-rich communication functionalities into their products without building them from scratch. The company's business model is based on a subscription-based model, where they charge customers based on the usage of their APIs and the number of monthly active users. They offer different pricing tiers to cater to the needs of different customers, from a free plan for small projects to custom enterprise plans for large-scale applications. Stream operates in the growing market of in-app communication, which is being driven by the increasing demand for real-time and engaging user experiences. The company's main competitors include other API providers for chat and activity feeds, as well as in-house solutions developed by companies themselves. Keywords: chat API, activity feed, messaging, real-time, in-app communication, API-first, developer tools, scalable, subscription, enterprise

Valuation $100–500M
Revenue $10–50M
Headcount 100–500
Total funding $50–100M
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Stream.io and the history behind them.

Investors

24 investors on Stream.io's cap table

Sourced from Dealroom's funding history. Investor profile links are shown where available.

Series A 17 investors entered at this stage
Wouter Kneepkens
Techstars
Galvanize Ventures
Tahoma Ventures
Joyance Partners
Dharmesh Shah
Wayne Chang
Arthur Ventures
Notable Capital
Knight Capital
01 Advisors
Felicis
Olivier Pomel
Selcuk Atli
Johnny Boufarhat
Tom Preston-Werner
Aydin Senkut
Series B+ 7 investors entered at this stage
Johnny Boufarhat
Aydin Senkut
Knight Capital
Felicis
Selcuk Atli
Tom Preston-Werner
Olivier Pomel

Global footprint

Where Stream.io has talent and traffic

Workforce by country
26 countries with
team presence
🇳🇱 Netherlands33.3%
🇺🇸 United States27.3%
🇲🇰 North Macedonia8.3%
🇮🇳 India4.5%
🇧🇷 Brazil2.3%
Top 5 of 26 shown
Web traffic by country
430K monthly visits
across markets
🇮🇳 India10.3%
🇺🇸 United States9.2%
🇧🇷 Brazil4.7%
🇻🇳 Vietnam4%
🇦🇪 United Arab Emirates3.9%
Top 5 markets shown

Talent graph

The shape of Stream.io's talent

Dealroom maps Stream.io's team person by person — pinpointing the standout operators and scoring them across the six dimensions investors underwrite. The counts and shape below are a public preview; the named individuals and exact scores live in the platform.

33 standout operatorsDealroom-flagged across the org
1 AI specialistpinpointed by name
332 employees mappedperson by person
DimensionScore
AI Talentlive Score hidden — book a demo
Engineering Score hidden — book a demo
Product Score hidden — book a demo
Go-to-market Score hidden — book a demo
Leadership Score hidden — book a demo
Research Score hidden — book a demo
Book a demo to unlock Stream.io's exact scores

Source: Dealroom Talent Intelligence. Public profiles show counts and the team's shape only — request a demo for the named individuals, per-person seniority and tenure, and team benchmarks vs peers.

Market sentiment

What the market is saying about Stream.io

An AI-synthesized read of the highest-engagement posts about Stream.io on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

See Stream.io on the full Dealroom platform

Live deal flow, founder pedigree, hiring signals, revenue trajectory, and the full cap table.