Pubstack is a privately owned company headquartered in France. Founded in 2018, it employs approximately 50 individuals. The company specializes in providing advertisement monitoring and analytics solutions specifically for publishers within the ad tech industry.

Revenue

Founded

2018

Headcount

46

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 revenues were less than $10M in 2023. All the revenue comes from supply side platform (SSP).
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Pubstack's customers primarily consist of broadcast Media Production and Distribution, media Production and video processing and playout companies. Examples of Pubstack's customers include M6 Group, Webedia and DPG Media.

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