Custom Built Enterprise Solutions

Thought Leaders

Our customers enjoy access to a collective of the most talented software designers and engineers in enterprise web development. Through a suite of professional services including advisement, development, training and support, we expand the power of our customers’ engineering teams. As experienced users and contributors of the most popular tools and frameworks, our customers receive the knowledge and guidance necessary to allow them to choose - with confidence - the right combination of tools and frameworks for their organization.

Open Source Projects

Dojo Toolkit

A full-featured JavaScript toolkit focused on the enterprise, supporting modern and legacy browsers and applications since 2004!


A modern, responsive, and modular data grid component with highly scalable performance. Built with Dojo, embeddable within any framework or application.


An exceptionally flexible stack for full lifecycle JavaScript and TypeScript testing, ranging from unit and functional tests to code coverage analysis, CI, accessibility, visual regression, and performance testing and much more.

Dojo 2

A modern, reactive TypeScript framework for building robust, enterprise-grade web applications.

Milestone Mayhem

Created as a tool to teach teams about bad habits and best practices in web development, Milestone Mayhem is a card game that we created to tell the story about life on a development team. On your own or in a SitePen-led workshop, this game is sure to bring laughs, help with team building and encourage healthy discussion about the cards and how they relate to your projects and process.

Check out the game

Trusted by the Enterprise

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