System1 Inc (NYSE: SST) is a digital advertising technology company that acquires user traffic across online channels and monetizes it by matching consumer intent with advertisers. Revenue comes from cost-per-click, cost-per-action, and cost-per-thousand-impression arrangements with advertising partners, and from net revenue-sharing agreements with network partners who route their own traffic through System1's platform. The company owns and operates approximately 40 websites as of the FY2025 10-K filing, including search engines Startpage.com and info.com, and publishing properties such as MapQuest, HowStuffWorks, CouponFollow, and ActiveBeat, spanning verticals including shopping, travel, health, finance, and automotive. Headquartered in Los Angeles, California, with operations in Canada and a data center in the Netherlands, System1 reports two segments: Marketing and a second segment referenced in the FY2025 10-K. The co-founder also serves as CEO.

Revenue model

Transactional digital advertising revenue recognized on cost-per-click, cost-per-action, and cost-per-thousand-impression bases. Network partner revenue reported net, as the difference between amounts received from advertising partners less amounts remitted to network partners under revenue-sharing agreements. Payment terms with advertising partners are typically 30 days.

Products and services

Owned and operated portfolio of approximately 40 websites (as of FY2025 10-K) including Startpage.com, info.com, MapQuest, HowStuffWorks, CouponFollow, and ActiveBeat. Proprietary omnichannel and omnivertical customer acquisition and monetization platform powered by AI and machine learning. Platform services are also offered to third-party network partners for traffic monetization.

Customers and end markets

Two customer types: advertising partners (third-party advertisers and advertising networks who bid for high-intent consumer traffic) and network partners (third-party publishers and platforms that route traffic through System1's platform). End markets span shopping, travel, search, health, finance, technology, automotive, and general interest content verticals.

Value-chain role

Intermediary between consumer traffic sources and advertisers. Acquires user traffic via paid acquisition channels, routes it through owned and operated properties, and sells matched consumer intent to advertisers. Also acts as agent for network partners, monetizing their traffic inventory through its advertising relationships. Holds proprietary first-party intent data collected through owned search engines and publishing sites.

Geographic exposure

Primary operations in the United States. Additional operations in Canada. Data center in the Netherlands.

Source: SEC 10-K, filed 2026-03-11

Industry: Services-Computer Programming, Data Processing, Etc. Peers: Alphabet Inc Angi Inc FaZe Holdings Inc. FuboTV Inc Cars.com Inc Eventbrite, Inc. Nextdoor Holdings Inc Mediaalpha Inc QuinStreet Inc Vimeo, Inc.