Companies employing more than 5,000 people represent nearly two-thirds (63.9 percent) of all business R&D in the United States, according to an analysis of NSF’s Business Research, Development, and Innovation Survey (BRDIS). With the recent release of more detailed numbers and to expand on a Useful Stats report from earlier this year, this analysis focuses on business R&D by company size. Small and mid-sized companies made up the highest share of business R&D in Alaska, New Mexico and Louisiana. In Delaware, Michigan and Oregon, large companies made up the highest share of business R&D.