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Advertising Company

Quantcast

Advertising technology platform connecting brands with audiences using real-time data and machine learning

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About Quantcast

Quantcast is an advertising technology company that helps brands reach audiences online. Its platform draws on live data from more than 100 million online destinations, combined with machine learning and a privacy-first design.

What Quantcast offers

Programmatic advertising platform — buying digital ads on a demand-side system.
Audience intelligence — insight and measurement of who visits sites.
Channel coverage — connected TV, audio, video, display, mobile and native formats.
Publisher tools — services for sites that sell advertising.
Cookieless options — ways to reach audiences without third-party cookies.

Who it works with

Marketers, publishers and advertising agencies worldwide, across sectors such as retail, travel, gaming and finance.

Key facts

Based in: San Francisco
Founded: 2006
Offices: 20 offices across 10 countries

Profile written by TrustList from the business's own published information, Oct 2026.

Categories & features

Rankings

As of 2026-10-06. Organic ranks only; sponsored placements are never ranks.

What the business tells TrustList

Founded: 2006 (20 years) evidence sent

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