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Stream.io
API for building activity streams
About Stream.io
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.
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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.
At a glance
- Founded
- 2015
- Headquarters
- Boulder, United States
- Sector
- Other B2B Software
- Power Law
- Colt$25–100M revenue
Latest news
Press, funding announcements and product moves mentioning Stream.io.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Series A17 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 and later7 investors entered at this stage
- JBJohnny Boufarhat
- ASAydin Senkut
- KCKnight Capital
- Felicis
- SASelcuk Atli
- TPTom Preston-Werner
- OPOlivier Pomel
Source: Dealroom Talent Intelligence.
Global footprint
team presence
across markets
Market sentiment
An AI-synthesised read of the highest-engagement posts about Stream.io on X, ranked by likes and reposts, corporate channels excluded.
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.