List of companies by research and development spending

The following list sorts companies with the highest expenditures for research and development (R&D) for different years, mostly taken from the american magazine Strategy+Business. 
2018 top 50.
The 50 companies with the highest research and development expenses in 2018.
2017 top 20.
The 20 companies with the highest research and development expenses in 2017 according to the Global Innovation 1000.
2014 top 20.
The 20 companies with the highest research and development expenses in 2014 according to the Global Innovation 1000.
2011 top 20.
The 20 companies with the highest research and development expenses in 2011 according to the Global Innovation 1000.
2008 top 20.
The 20 companies with the highest research and development expenses in 2008 according to the Global Innovation 1000.