Ignition Interlock Companies

Guardian Interlock introduced the first ignition interlock device in California in 1985. The company has helped hundreds of thousands of clients regain their driving privileges, and their alcohol monitoring devices are designed and engineered to ensure safety and meet NHTSA’s rigorous standards.

Guardian’s mission is to produce technologically innovative and reliable products at a reasonable price. With over 400 service centers in 26 states, Guardian Interlock’s IIDs are widely available.

Intoxalock has been in business since 1988 and is based in Des Moines, Iowa. The company prides itself on professional service and reliable alcohol monitoring devices. Intoxalock’s ignition interlock devices meet the state requirements in 46 states and are available across the country.

Intoxalock’s mission is to help people live and drive responsibly.

As a national leader in ignition interlock technology, LifeSafer helped launch in the industry in 1991 and was the first IID company to meet the National Highway Traffic Safety Association standards in 1992. Available in all 50 states, LifeSafer knows the legal requirements and processes in every state to help customers across the country complete their IID programs.

LifeSafer’s mission is to support drivers and their families through device installation, license recovery, and maintenance, and provide accurate, timely, and reliable services.

Founded in 1989, Monitech partnered with North Carolina to create the state’s original ignition interlock program. The company serves customers from all 100 counties in North Carolina through industry-leading technology, a statewide network of company-owned service centers, and a team of certified technicians located within 50 miles of any North Carolina resident.

Monitech’s mission is to take ownership of the total customer experience, providing top-quality services and enabling customers to successfully complete their alcohol interlock programs.

Certified and licensed by the Arizona Department of Transportation, QuickStart was established to do business in Arizona in 2008. With thousands of customers across the state, the company offers unparalleled customer service and high-quality ignition interlock devices.

QuickStart’s mission is to get customers back on the road quickly and to provide drivers with the best customer support possible.

Headquartered in Grapevine, Texas, Smart Start began in 1992 and is one of the largest providers of ignition interlock devices in the United States. The company has serviced over one million clients and has prevented over 11 million illegal vehicle starts.

Smart Start’s mission is to focus on road safety and sobriety as a software-driven company that allows for non-subjective reporting and monitoring for their devices and clients.