John Billheimer

John “J.B.” Billheimer, Sr. has more than 34 years of business operating experience, running and managing multiple businesses. His main company, MAS Service, is based in the San Francisco Bay Area and provides HVAC, refrigeration and food equipment services throughout California. As the founder and CEO of MAS Service and the mechanical air service corporation JB Mechanical, Inc., Billheimer has decades of experience working with countless service, civic, and community organizations and causes.

Throughout his professional career, Billheimer has held a number of leadership roles in his local community, serving as president of multiple organizations including Rotary, Chamber of Commerce, Sheppard’s Gate shelter for women and children in need in Livermore, California., and the Tri-Valley Executive Association serving the Bay Area. He has earned Rotarian of the Year and Tri-Valley Executive of the Year honors.

Throughout the years, Billheimer also has been a long-time supporter of the U.S. military as a civilian volunteer and holds board positions with a number of private companies and organizations, including Boot Campaign and the Lone Survivor Foundation.

Additionally, Billheimer is an instrument-rated commercial pilot, and volunteers his time and airplane with Angel Flight, a nonprofit organization that provides free air transportation for any legitimate, charitable, medically related need.

In his free time, he enjoys extensive travel with his wife Corinne, three children and two grandchildren, and is an avid outdoorsman and antique firearms collector.