Epsilon is a privately owned company headquartered in the US, with Publicis Groupe as its parent company and subsidiaries including Catapult Marketing, CitrusAd, Conversant, and Lotame. Founded in 1969, the company employs approximately 11,130 individuals and reported $1.8B in revenue as of 2024. Functioning as a tier 1 media tech buyer, Epsilon specializes in providing global advertising and marketing technology for marketers and agencies.

2024 Revenue

Founded

1969

Headcount

11,125

Headquarters

US

Primary Segment

Marketer and agency technology

Ownership

Privately Owned

Deployments

12

News Summary:

On April 23, 2026, Epsilon APAC highlighted the persistent challenge for multi-tenant retailers, such as shopping malls, airports, and mixed-use centers, in demonstrating the return on investment for their digital marketing efforts to tenants, noting that current tools and studies often fail to provide a full financial narrative. Earlier, on April 21, Publicis Groupe announced its Q1 2026 strategy, which includes a €300 million three-year "CoreAI" investment program, emphasizing Epsilon's data as central to driving its digital growth and transformation into a platform-first technology partner. Previously, on April 15, Epsilon EMEA released a "New Video Frontiers Highlights & CTV Guide" and a "CTV Buyer's Guide." These publications addressed the growth of Connected TV (CTV) but also pointed out the associated trade-offs for marketers, including less control over audience reach, frequency, and impact measurement across a fragmented streaming landscape. The buyer's guide offered criteria for choosing a CTV advertising partner, stressing the importance of efficient reach, integrated channel mix, and effective measurement.

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Epsilon offers 4 products in the ad tech and services and media and telecoms services industries. Epsilon's product portfolio comprises of search, social, and retail media, marketer and agency technology and RTB and programmatic.
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Epsilon's revenues were over $1B in 2024. Caretta Research has split Epsilon's revenue into 4 different product categories, the largest of which is customer data platforms (CDP). For full access to Epsilon's revenue breakdown subscribe to Caretta Portal.
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Epsilon's customers primarily consist of physical retail, retail Pharmacies and hospitality companies. Examples of Epsilon's customers include Marriott International, Costco Wholesale and Walgreens.

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