Formerly Citrusbyte, we are now Theorem. Read our story.

Innovate like a startup.
Even if you aren't one.

See what we've made

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What we've made

Enterprise-grade platforms at startup speeds for the world's biggest telecom company

See full case study

We developed a music catalog platform that takes music management to the next level

See full case study

Elizabeth Weir

Sr. Director, Flat World Education

It was clear to everyone that the Theorem team was heads above other developers we'd worked with. They approached problems from a very logical and analytical perspective and always provided A+ work on every project they touched. Their work on our project turned into the leading the charge on new initiatives...I can say without hesitation that the team Theorem brings is the best I've seen.

A Process That Works

From whiteboarding new concepts to long-term support, we work with startups and large multi-national enterprises to develop new applications.Find out more

Innovate like a startup.Even if you aren't one.

Trusted by

Enterprise-grade platforms at startup speeds for the world's biggest telecom company

We developed a music catalog platform that takes music management to the next level

A Process That Works

Innovate like a startup.
Even if you aren't one.