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Stream was built on years of experience with creating streams for high-traffic apps. We're passionate about creating the best solution for building, scaling and personalizing feeds.

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Open Source

Thierry and Tommaso built Stream-Framework, while working together in Amsterdam. With over 250,000 downloads it quickly became the leading open source feed solution.

Techstars NYC

Our strong open source project and time at Techstars enabled us to raise a seed round of 1.75 Million in August. Investors include Brad Feld/ FGAngels, TechStars Ventures, Tahoma Ventures, Social Starts, Galvanize and other independent angels.

Foundry Group Invested in Stream Techstars invested in Feed Startup Stream Social Starts back Social Feeds API Stream IO Galvanize Ventures backs Stream and their feed and notification API

Boulder & Amsterdam

After graduating from Techstars, Stream set up headquarters in beautiful Boulder, Colorado. With offices in Boulder and Amsterdam, we are able to attract some of the world's best talent and work nearly around the clock.

Thierry Schellenbach, CEO

Thierry graduated cum laude with honours from Erasmus university with a degree in business. At the age of 14, he started his first profitable site and discovered a passion for technology. Before founding Stream with Tommaso, he co-founded Fashiolista, which grew to be one of the world's largest social networks for fashion. He's the author of several widely used Python packages including Stream-Framework and Django-facebook and has more than 5 years of experience managing technology companies.

Tommaso Barbugli, CTO

Tommaso is an enthusiastic software developer. He discovered programming at a young age using an old Amstrad CPC464, since then he has continued to learn about and create new programs. While studying at high school he started focusing on web development and at age 19, he started his own software company after finishing his studies. Before founding Stream he worked together with Thierry at Fashiolista as Lead Engineer for a few years. He is the co-author of the open source Stream-Framework, Cassandra Snapshotter and several other libraries.

Our Team

Miguel Gomard

Previously CTO at Meetic (IPO, acq IAC), CTO at MyFab (acq Fab) and project manager at iFrance.

Kevin Altamirano

M.Sc. in Operations Research from Columbia and former Chief Economist for the Mexican Ministry of Economics.

Alessandro Pieri

12+ years of Java experience, 6 years working on highly scalable apps.

Joshua Tilton

Previously Lead Designer at SendGrid; responsible for team building, creative direction and user experience leadership.

Nick Parsons

Coder by day and entrepreneur by night. Lover of all things outdoors.

Peter van Kampen

Peter has been programming since his early teens and still likes it, especially python and databases.

Ian Douglas

Ian brings 20 years of web development experience to the team, including several years as a web artitect and lead engineer and public speaker at SendGrid.

Jelte Fennema

Exprienced Python developer with a BSc in Computer Science and a cum laude MSc in System & Network Engineering.

Advisors & Board Members

John Ives

John Ives

Board Member

John brings over three decades of experience in the technology industry Stream's board. He co-founded Serano System, Boulder Angels and Tahoma Ventures. John has been a software and hardware engineer, an entrepreneur, an angel investor, and a venture capitalist.

Ari Newman invests in Stream IO

Ari Newman

Board Advisor

Ari founded Filtrbox which was acquired by Jive software. He's currently a partner at Techstars ventures, the venture capital arm of Techstars with $265m under management.

Alex Iskold invests in Stream IO

Alex Iskold

Board Advisor

Alex is the managing director of Techstars NYC. He writes one of the must read blogs for entrepreneurs, Before focusing full time on helping enterpreneurs, he founded GetGlue and Information Laboratory.

ryan spraetz invests in Stream IO

Ryan Spraetz

Mentor / co-founder

Ryan likes bouldering, building, coding, and winning. Co-Founder @Keen IO. Previously technical product manager at @Salesforce. UIUC Engineering. Our team is incredibly psyched to have Ryan on board as a lead mentor & angel investor. is an amazing company and very similar to Stream with regards to the founding story, technology and business challenges.

wayne chang invests in Stream IO

Wayne Chang

Mentor / founder crashlytics (acq. twitter)

Founder: @Crashlytics (acquired by @Twitter). Early involvement with: @Tablelist, @Napster & @Dropbox. Details at As a founder of Crashlytics, which was acquired by Twitter for 9 figures, Wayne is the ideal angel investor for Stream. Crashlytics is an absolute joy to use, Wayne helps Stream set a high-bar in terms of product quality and user experience.

Zero maintenance, lower monthly costs, and hundreds of hours of development time saved.