The National Science Foundation (NSF) estimates that U.S. research and development (R&D) funding reached an all-time high of $499.3 billion in 2015 – an increase of approximately $21.6 billion over 2014 levels ($477.7 billion). The $21.6 billion increase marks the third time in three years that overall U.S. R&D funding grew by more than $20 billion – $20.4 billion in 2013 and $21.1 billion in 2014.
