While there are plenty of big-name American companies we all know of, there are just as many U.S. businesses that fly under the radar despite consistently generating massive revenue, employing hundreds of thousands of workers, and keeping our economy growing. 

Below are some the some of the A-listers off of the Fortune 500 list you've probably never heard of, but their contribution to our our country's economy is anything but hidden. 

 

Chris Neiger has no position in any stocks mentioned. The Motley Fool owns and recommends Express Scripts. The Motley Fool recommends Enterprise Products Partners and McKesson. The Motley Fool owns shares of Johnson Controls.Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.