System1, Inc.
System1, Inc. (NYSE: SST) operates a digital marketing platform and a portfolio of consumer websites across shopping, travel, search and other categories. Its platform uses machine learning and first-party data to acquire and monetize user traffic, match consumer intent with advertising demand, and deliver customers… From the company’s description.
Over the twelve months to Jun 30, 2026, System1, Inc. reported revenue of $180.94M, down 42.9% from a year earlier, and a net loss of $112.72M. Its operating margin was −51.0%, and operations used $40.86M in cash. In fiscal 2025, it reported revenue of $266.13M, down 22.6% from fiscal 2024, and a net loss of $81.19M.
Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.
What System1, Inc. does
In the company’s own words
System1, Inc. (NYSE: SST) operates a digital marketing platform and a portfolio of consumer websites across shopping, travel, search and other categories. Its platform uses machine learning and first-party data to acquire and monetize user traffic, match consumer intent with advertising demand, and deliver customers to advertisers and advertising networks; it also helps third-party publishers and marketing partners monetize traffic. System1 owns and operates approximately 40 websites, including search engines, digital media publications and internet utilities, and supports display, search, video, lead-generation, e-commerce and subscription monetization. Its businesses include the Products operations and the Marketing operations, reorganized in 2024 into separate subsidiaries. Major brands include CouponFollow, Startpage, MapQuest, HowStuffWorks and ActiveBeat. The platform processes more than 560 million distinct search queries monthly, and the company had approximately 250 full-time employees across three countries as of December 31, 2025. Its website is https://www.system1.com.
Company details
- Sector
- Information Technology
- Industry (SIC)
- Computer Services
- Headquarters
- MARINA DEL REY, CA
- Fiscal year end
- December
- CIK
- 1805833
- SIC
- 7370
Financial performance, year by year
Fiscal 2021–2025 · USDThe full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.
Who owns System1, Inc. — and what changed
Funds as of 2026Q2 · superinvestors as of 2026-06-30
Largest fund holders · System1, Inc.’s weight in each
Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Could not be determined for this company: bond issues.
Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.
Recent filings
All filings →Each filing opens into its own statements and disclosures here.
Put this business in context.
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