Contact Us – Rasmussen Air and Gas Energy CONTACT US Your Name (required) Your Email (required) Phone Your Message CORPORATE HEADQUARTERS Nebraska 655 South 240th St. Waterloo, NE 68069 US LOCATIONS Illinois 300 N. State St., Ste 5616 Chicago, IL 60654 Kansas 14821 W. 99th St. Lenexa, KS 66215 1-877-939-1999