AutoTrader.com, Inc. is an online marketplace for car shoppers and sellers. It aggregates millions of new, used, and certified second-hand cars from thousands of dealers and private sellers.The site also provides users with automotive reviews, shopping advice, and comparison tools for car financing and insurance information. The firm is based in Atlanta, Georgia, and has been featured in The New York Times, Businessweek, and ABC News.

AutoTrader.com offers services that help consumers buy cars, sell cars, or research car purchases. For those looking to buy a car, the site offers listings of new and used vehicles for sale from dealers and private sellers.

Those looking to sell a car to a dealer can ask for offers from their local area. After taking their car to the dealer to verify its condition, the owner may then sell the car to the dealer for the offered price, either as cash or trade-in value. For sellers who list a car for sale directly to a private buyer, the site offers options with various levels of service including a level where the firm's representatives handle many of the details, including writing the ad, taking photos, and pre-screening potential buyers.

The firm has an editorial team that reviews new and used cars and provides tips and advice via videos, articles, and social media content. The firm offers its products and services online and on its iPhone, Android, Windows 8, and iPad apps.