We are grateful to various organizations for supporting the DFT-FE code development, and the related methodological and algorithmic developments which made this possible. 

• The development of DFT-FE open source code relating to pseudopotential calculations has been funded in part by the Department of Energy PRISMS Software Center  at University of Michigan, and the Toyota Research Institute. The development of DFT-FE open source code relating to all-electron calculations has been funded by the Department of Energy Basic Energy Sciences. 

• The methods and algorithms that have been implemented in DFT-FE are outputs from research activities over many years that have been supported by the Army Research Office, Air Force Office of Scientific Research, Department of Energy Basic Energy Science, National Science Foundation and Toyota Research Institute.

• We acknowledge our fruitful collaboration with Dr. Jaroslaw Knap and Kenneth Leiter from Army Research Laboratory, which shaped our method development efforts. 

• Part of the DFT-FE open source code development related to the capabilities --- PAW, Ab initio MD, NEB, non-collinear magnetism with spin-orbit coupling has been funded by seed grant from Indian Institute of Science, SERB Startup Research Grant (SRG), National Supercomputing Mission (NSM) R&D for Exascale Grant from the Department of Science and Technology (DST), India, and Indo-Korean Science & Technology Center (IKST), Bangalore [South Korea].