The CityEnergyAnalyst (CEA) is licensed under the terms of the MIT License.
The CEA also utilizes third party software. These software are copyrighted by their owner as indicated in the copyright notices below.
License:
https://github.com/MITSustainableDesignLab/Daysim/blob/master/README.md
Copyright (c) 2012 National Research Council Canada, Ottawa, Canada
Copyright (c) 2012 Fraunhofer Institute for Solar Energy Systems, Freiburg, Germany
The CEA repository includes Daysim binaries for Windows and Mac for backup reasons. These binaries are built based on the source code on GitHub without modifications.