According to a report from Martin Prosperity, venture capital investment is heavily concentrated across several industral sectors. America's top five industries account for 76.3 percent of all VC investment across the nation, about $25 billion in total. Software receives the largest slice of the VC pie by far, accounting for 36.2 percent (almost $12 billion) while biotechnology comes second with 17.3 percent ($5.7 billion). Media and entertainment rounds off the top three with 9.5 percent ($3.2 billion).