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Cesium is an open platform for creating 3D applications that are fast, flexible, and based on real-world geospatial data. Learn more about Cesium.

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Inception 2011

A team at Analytical Graphics, Inc. developed CesiumJS for global-scale aerospace visualization.

Launch 2019

Cesium was formed as an independent venture-backed company to build the foundational open platform for software applications designed to unleash the potential of 3D geospatial.


Get to know our team.

Meet the Team


Cesium is based in Philadelphia, Pennsylvania.

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The open source CesiumJS project has been downloaded over 2 million times, has over 200 lifetime contributions, and reaches tens of millions of users annually.

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Open standards

Cesium created 3D Tiles, contributed to glTF, and advocates for open standards across industries.

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