Miller Valve LC is a Missouri Limited Liability Company owned by three individuals.

Robert Miller invented the Miller valve. He has a music degree from Oberlin Conservatory, has been a member of the Albuquerque Symphony Orchestra and the St. Louis Symphony Orchestra and currently is a member of the St. Louis Municipal Theater Association Orchestra. He also practices law full time in St. Louis.

Remi Wrona is an international business consultant and was formerly an executive with Sunnen Products Company, a manufacturer of honing equipment and supplies.

Wally Dalrymple is a computer draftsman.