Nationwide Interlock
U.S. ignition interlock device (car breathalyzer) installation and service provider for DUI compliance.
Last updated September 29, 2026
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Overview
Nationwide Interlock LLC is a United States-based ignition interlock device (IID) service provider. The company installs and services state-certified, court-approved car breathalyzers for drivers who have been ordered to use an interlock after a DUI or drunk-driving arrest. Its website describes the business as an official Roadguard Ignition Interlock Device Service Provider and also as a Draeger Interlock Device provider, offering devices such as the Draeger Interlock 7000, Draeger Interlock XT and the LCI-777. The company positions itself on convenience and price. Its homepage advertises that it will beat any price, offers free ignition interlock installation and set-up, same-day installation, and evening and weekend appointments. It emphasizes discreet, easy-to-use devices with "no humming" and 24/7 support, and it invites prospective customers to request a quote or search for an installation facility by city, state or ZIP code. The site also provides client resources organized by state, listing Florida, Ohio, Michigan, Minnesota, Tennessee and Wisconsin among the states it serves. Nationwide Interlock markets itself heavily on customer reviews, claiming more five-star Google reviews than any other ignition interlock provider. Its review page displays a 4.7 rating based on 1,114 Google reviews, with customer testimonials praising the treatment they received from staff. The company operates a helpline at 1-866-694-6099 and references Roadguard Interlock headquarters at 1-833-545-0368. As a private company, Nationwide Interlock does not appear to be publicly listed. Its business is tied to the regulatory market for DUI-related ignition interlock programs, where providers must meet state certification and court-approval requirements. The company's model combines device supply through manufacturer partnerships (Roadguard, Draeger) with a network of installation and service locations across the United States.
History
Nationwide Interlock LLC operates in the U.S. ignition interlock device (IID) market, a regulated niche tied to DUI enforcement. Ignition interlock devices are breathalyzers wired into a vehicle's ignition system; drivers ordered to install one after a drunk-driving arrest must blow into the device before the car will start, and often at rolling retests while driving. States certify devices and service providers, and courts require compliance for drivers to regain or retain driving privileges. Nationwide Interlock presents itself as an official Roadguard Ignition Interlock Device Service Provider and also as a Draeger Interlock Device provider. Its device lineup includes the Draeger Interlock 7000, the Draeger Interlock XT and the LCI-777. The company supplies user manuals and training videos for these devices on its website, and it maintains a helpline at 1-866-694-6099. It also references Roadguard Interlock headquarters at 1-833-545-0368. The company's public messaging centers on making the court-ordered process fast, simple and stress-free. Its homepage advertises that it will beat any price, offers free installation and set-up, same-day installation, and evening and weekend appointments. It highlights discreet, easy-to-use devices with "no humming" and 24/7 support. A facility search tool lets customers find installation locations by city, state or ZIP code, and the site notes that new service center locations are added often. Nationwide Interlock also publishes state-specific client resources, listing Florida, Ohio, Michigan, Minnesota, Tennessee and Wisconsin among the states it serves. Its review page displays a 4.7 rating based on 1,114 Google reviews and claims more five-star Google reviews than any other ignition interlock provider. Customer testimonials on the site describe long-term relationships with the company and praise staff members by name. The company is private and does not appear to be publicly traded. Its Wikidata entry describes it simply as an "ignition interlock device installation company." Because the IID market is shaped by state regulations and court requirements, Nationwide Interlock's growth depends on maintaining certifications, expanding its installation and service network, and competing with other national and regional interlock providers on price, convenience and customer experience.
Products and positioning
Price-competitive, customer-service-focused ignition interlock provider emphasizing convenience, discretion and high Google review ratings.
Draeger Interlock 7000
Ignition interlock device offered by Nationwide Interlock, with quick start guide and manual available on the company website.
Draeger Interlock XT
Ignition interlock device offered by Nationwide Interlock, with user information and manual available on the company website.
LCI-777 Interlock Ignition Device
Ignition interlock device offered by Nationwide Interlock, with training video and user manuals available on the company website.
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