System1, Inc. provides omnichannel customer acquisition platform services through its proprietary responsive acquisition marketing platform in the United States and internationally. It operates in two segments: Owned and Operated Advertising, and Partner Network. The company acquires traffic to its owned and operated websites and engages in revenue-sharing arrangements and related services. It also operates MapQuest, Info.com, HowStuffWorks, Startpage, CouponFollow, ActiveBeat, and Infospace, and offers antivirus software solutions. The company is based in Los Angeles, California.