Mesa Engineering is the manufacturer of Mesa Boogie amplifiers and amplifier equipment. The company produces tubes, speakers, guitar and bass amplifiers and cabinets, hardware and accessories. Guitar amplifier brands include Stilletto Deuce & Trident, Lonestar, F-Series, Pure Class A Designs and Mark Designs. Mesa Boogie has authorized dealers throughout the United States, Canada and the world. Mesa Engineering has been in business for more than 25 years. The company is based in Petaluma, Calif.