Epsilon, a privately owned company headquartered in the United States, is a subsidiary of Publicis Groupe. Founded in 1969, the company has approximately 10,940 employees and reported $2.0B in revenue as of 2025. Functioning as a global advertising and marketing technology company, it specializes in data, targeting, and identity solutions. Its portfolio includes subsidiaries such as Catapult Marketing, CitrusAd, Conversant, and Lotame.

2025 Revenue

Founded

1969

Headcount

10,933

Headquarters

United States

Primary Segment

Data, targeting and identity

Ownership

Privately Owned

Deployments

12

News Summary:

On September 16, 2026, E3 Lithium signed a memorandum of understanding (MoU) with Epsilon for the supply of battery-grade lithium carbonate, a deal structured to support Epsilon's 30,000 metric tons per year cathode facility. This agreement elaborates on a September 15, 2026, announcement, where Canada-based E3 Lithium confirmed signing a non-binding MoU with battery materials maker Epsilon CAM. Effective September 1, the framework outlines the potential annual supply of up to 5,000 tons of battery-grade lithium carbonate over a five-year period, sourced from E3 Lithium's Clearwater project in Alberta.

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Epsilon offers 4 products in the media and telecoms services and ad tech and services industries. Epsilon's product portfolio comprises of search, social, and retail media, data, targeting and identity and RTB and programmatic.
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Epsilon's revenues were over $1B in 2025. Caretta Research has split Epsilon's revenue into 4 different product categories, the largest of which is data clean rooms, identity resolution and audience activation. For full access to Epsilon's revenue breakdown subscribe to Caretta Portal.
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