Huntsman Corporate Headquarters, Texas

Based in the Woodlands, a master planned suburb north of Houston, Huntsman has chemical plants around the world, employing around 12,000 people and generating over $11 billion in revenue in 2013. Plants in Texas are located at Alvin, Port Neches, Dayton, Freeport, and Conroe. The company was founded in 1970 as the Huntsman Container Company. It generates over 30 billion pounds of petrochemical products annually, used for base chemicals and plastics, generally for consumer products.