Harbinger is a national signage firm specializing in volume fabrication, installation, service, maintenance, and project mana ... gement. Headquartered in Jacksonville, Florida. The company is licensed to operate in all states and has extensive experience in a range of markets with multiple locations, including petroleum, commercial, restaurant, sports and entertainment, grocery, health care and retail. Harbinger views business relationships as collaborative brand partnerships and has worked with top national and international organizations. read more