American Express launches Amex Ads, a new digital advertising platform

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American Express has officially entered the digital advertising business with the launch of Amex Ads, a media network that leverages insights from 34 million U.S. cardholders to deliver precision-targeted campaigns. Announced during Advertising Week New York, the launch positions Amex as the latest financial major to turn its vast consumer data ecosystem into an ad revenue engine.

The new network builds on over a decade of Amex’s successful “offers” business, which generated $15 billion in cardmember spending last year. Amex Ads offers advanced contextual targeting, end-to-end measurement, and a brand-safe, closed-loop environment — all within Amex’s proprietary ecosystem.

Early pilot campaigns with Tumi and Marriott have delivered standout results. Marriott used Amex’s travel booking data to target users who had booked flights but not hotels, achieving 300% ROI above expectations. Tumi reached millennial and Gen Z travellers with travel-themed placements that delivered a 30% higher ROAS than benchmarks.

The network isn’t limited to travel brands — both endemic and non-endemic advertisers can measure online and offline conversions for a unified view of customer journeys.

The move follows Mastercard’s ad network debut just a week earlier, underscoring how financial firms are racing to monetise high-quality first-party data. With U.S. retail media spending projected to reach $100 billion by 2028, Amex aims to become a key player in the commerce media economy.