Pubstack, a privately owned company headquartered in France, was founded in 2018. The company, which employs approximately 50 people, specializes in advertisement monitoring and analytics solutions for publishers, primarily focusing on RTB and programmatic technologies.

2024 Revenue

Founded

2018

Headcount

47

Headquarters

France

Primary Segment

RTB and programmatic

Ownership

Privately Owned

Deployments

6

News Summary:

Pubstack highlighted on March 17, 2026, that publishers should implement practical steps before Q2 to safeguard the value of their inventory in programmatic advertising, addressing the increasingly complex buying decision process to ensure more accurate assessment by demand partners. Previously, on November 25, 2025, the company discussed the inherent difficulties in migrating ad tech to the server, describing the industry's quiet rewiring from client-side to server-side technology as a fundamental reckoning with the limitations of old methods. This followed a November 18, 2025, analysis that characterized programmatic advertising as a complex maze rather than a linear supply chain, where impressions navigate numerous optimization layers before a bid, advocating for AI traffic shaping and mapping. Earlier in November, on November 12, 2025, Pubstack noted that publishers often face a moment where their ad tech stack, initially designed for growth, becomes an impediment, an economic reality many find difficult to confront. In an earlier July 8, 2025, piece, the company explored why premium publishers, despite their quality journalism and loyal audiences, are undervalued in the programmatic ad ecosystem, often falling behind in a marketplace prioritizing reach, volume, and quantifiable efficiency.

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Pubstack offers products in the ad tech and services industry. Pubstack's product portfolio comprises of RTB and programmatic.
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Pubstack's customers primarily consist of online Audio and Video Media, video processing and playout and broadcast Media Production and Distribution companies. Examples of Pubstack's customers include M6 Group, Prisma Media and Webedia.

Example Customers

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