No. 4: Illinois
Next up by number of IW U.S. 500 companies is Illinois, with 34 companies making the list, contributing $443 billion in revenue.
The land of Lincoln is home to five machinery makers, contributing $88.5 billion, and four each in the food ($106.1 billion) and fabricated metals industries ($21.4 billion).
Top food company in the state is Archer-Daniels-Midland Co. (IW500/17), with $67.7 billion in revenue.
Top machinery manufacturer is Caterpillar Inc. (IW500/24), with $47 billion.
Still, the aerospace and defense giant Boeing Co. (IW500/9) is the biggest company in the state, with $96.1 billion in revenue.