System1
System1's RAMP platform connects high-intent consumers with advertisers at scale, combining owned media assets with proprietary technology to deliver measurable customer acquisition across search, display, and native channels.
Last updated Jun 5, 2026 by ATDb automated enrichment
- Industry
- Performance Marketing / Search Monetization / Customer Acquisition
- Business Model
- Marketplace / Performance Marketing Platform
- Target Market
- Enterprise and Mid-Market advertisers; publishers seeking monetization
- Employee Count
- 501-1000
- Funding
- Went public via SPAC; raised approximately $350M through SPAC merger with Trebia Acquisition Corp
- Revenue Range
- $400M–$600M
- Stock Symbol
- SST
- API Available
- Limited
Leading responsive acquisition marketing platform with a dual O&O publisher and ad technology model, publicly traded on NYSE
System1 is a publicly traded responsive acquisition marketing platform headquartered in Los Angeles, California. The company operates a portfolio of owned and operated (O&O) websites alongside its RAMP (Responsive Acquisition Marketing Platform) technology, which enables advertisers to acquire customers at scale across search, display, and native advertising channels. System1 leverages first-party data and proprietary technology to match consumer intent signals with relevant advertiser offers, monetizing traffic through partnerships with major search engines including Google and Microsoft. The company has grown significantly through acquisitions, notably acquiring Infospace and Startpage, and going public via a SPAC merger with Trebia Acquisition Corp in January 2022. System1's O&O portfolio includes privacy-focused search engine Startpage, antivirus brand TotalAV, and various content and utility websites that generate high-intent traffic. This dual-sided model — owning both the traffic sources and the monetization infrastructure — differentiates System1 from pure-play ad networks or agencies. In the AdTech ecosystem, System1 occupies a unique position as both a publisher and a technology platform. Its RAMP platform is used internally and offered to third-party publishers to optimize monetization across multiple demand sources. The company competes with performance marketing networks, search monetization platforms, and customer acquisition specialists, while maintaining strategic relationships with major search advertising ecosystems.
RAMP (Responsive Acquisition Marketing Platform)
Proprietary technology platform that optimizes customer acquisition campaigns across search, display, and native advertising channels using intent-based targeting and real-time bidding.
Startpage
Privacy-focused search engine that does not track users, monetized through anonymous search advertising; acquired by System1 as part of its O&O portfolio.
TotalAV
Consumer antivirus and cybersecurity software brand operated as part of System1's owned and operated portfolio, generating subscription revenue and high-intent traffic.
Owned & Operated (O&O) Network
Portfolio of content, utility, and vertical websites that generate first-party, high-intent consumer traffic monetized through System1's advertising infrastructure.
Network Publishing
Third-party publisher monetization solution enabling external publishers to leverage System1's demand relationships and RAMP technology for revenue optimization.
- 2013Founded