Tenneco is an American Fortune 500 company that has been publicly traded on the NYSE since November 5, 1999 under the symbol TEN. Tenneco, with headquarters in Lake Forest, Illinois, United States is an automotive components original equipment manufacturer and an after-market ride-control and emissions products. In 2011 it reported a revenue of $7.2 billion.
Tread Lightly! is a national nonprofit organization with a mission to promote responsible recreation through ethics education and stewardship programs.