The Largest Private Company in the US

Who could tell me who the largest private company is in the US?  Think big AG and you have Cargill.  Growing up in the Midwest I am quite familiar with the name as you pass rows of corn you can see the Cargill signs who are the manufacturer of the seeds.  Cargill actually exited the seed business some time ago and diversified into other areas.

A few things to point out in the article

• On a size scale they would rank 18 in the Fortune 500
• 60% of revenues come from outside of the US
• Cargill does not own any farming land