IBM (United States), NEC Corporation (Japan), Hexagon (Sweden), Esri (United States), NC4 (United States), Intermedix Corporation (United States), Eccentex (United States), The Response Group (United States), Haystax Technology (United States), Alert Technologies (United States), Crisisworks (United States), EmerGeo (United States), Veoci (United States) and MissionMode (United States) are some of the notable players in the incident and emergency management market.