Havis, Inc. is an American manufacturer of in-vehicle mobile office and prisoner transport products for private and public corporate, military and law enforcement, and enterprise fleets. Founded in Philadelphia and now headquartered in Warminster, Pennsylvania, Havis serves numerous industries including, but not limited to: public safety, military and government, utility and public works, energy services, transportation, material handling, and other mobile professions. Along with its factory in Warminster, Havis also operates a satellite office in Plymouth, Michigan.