Nevada Home>Public_Health_and_Safety>Emergency_Services>Medical>Ambulance_Companies>North_America>United_States>Nevada     Web Pages Southwest Ambulance Southern Nevada's hometown ambulance company. Providing non-emergency, nurse critical care transport, special events and (in 2001) 911-emergency ambulance service in Clark County, North Las Vegas and Las Vegas. Regional Emergency Medical Services Authority REMSA - Paramedic Ambulance Service operating out of northern Nevada.