About Cesium

Cesium began in 2011, when a team of developers at aerospace software company Analytical Graphics, Inc. set out to create an application to visualize objects tracked in space. Led by computer graphics expert Patrick Cozzi, the project produced the world's most accurate, performant, and time-dynamic virtual globe. Dubbed Cesium after the element that makes atomic clocks famously accurate, it was released as open source in 2012.

At the same time, 3D data collection was proliferating around the world, driving a need for software and standards that could unleash its potential. Cozzi and the Cesium team created 3D Tiles, now an OGC Community Standard , to support visualization of massive, precise 3D data at a global scale. As industries began gathering 3D location data for an abundance of use cases, the team saw the demand to expand Cesium beyond aerospace. In 2019 Cesium spun out as an independent company with the vision to build the foundational open platform for the entire geospatial ecosystem.

Expanding on the visualization capabilities of CesiumJS, which the company still maintains as free open-source software, the Cesium platform is now a complete suite of tools for building 3D geospatial applications of any kind. The Cesium platform includes curated 3D data, precise tools for measurement and analysis, and 3D tiling pipelines that make 3D data easy to stream and share.

Applications built with Cesium are used for everything from planning flights and building digital twins for smart cities to helping autonomous vehicles navigate the world. Cesium is proud to serve a wide range of customers and partners across industry and government, including the United States Department of Defense and companies like Uber, JLL, and Komatsu.

2011 Cesium is founded by a team of computer graphics developers at AGI.
April 2012 CesiumJS is released as open source.
December 2012 NORAD Tracks Santa uses CesiumJS for its annual tradition of tracking Santa's route around the world.
March 2013 CesiumJS adds support for streaming global terrain data, introducing the open quantized-mesh format for efficient streaming, decoding, and rendering of terrain.
March 2014 CesiumJS adds support for 3D models using the glTF open standard, marking the beginning of our leadership within standards groups.
August 2014 CesiumJS 1.0 is released after 28 beta releases and with contributions from 33 contributors.
August 2015 3D Tiles is introduced to improve streaming and rendering performance of massive heterogeneous datasets, bringing a new open specification to 3D geospatial.
December 2016 CesiumJS reaches 100 contributors. This amazing community is why we believe so deeply in the strength of open source.
May 2018 Cesium ion launches, providing a complete platform to host, visualize, and analyze 3D content.
February 2019 3D Tiles becomes an OGC community standard, making it the standard for 3D geospatial.
June 2019 Cesium GS spins out as an independent company, accelerating the growth of the Cesium ecosystem.
February 2020 CesiumJS lifetime downloads surpass 1 million.
March 2020 Cesium Stories launches, providing a simple way to create and share 3D geospatial presentations on the web, no coding required.

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Cesium is being built by a team of innovative and passionate people.

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