Hivestack

One of the leading global programmatic DOOH platforms, now operating under VIOOH following a 2023 acquisition, with a presence in 25+ countries

Hivestack is a Montreal-based programmatic digital out-of-home (DOOH) advertising technology company that built one of the most comprehensive end-to-end platforms in the DOOH space. Its integrated stack includes a supply-side platform (SSP) for media owners, a demand-side platform (DSP) for advertisers and agencies, and a purpose-built ad server designed specifically for the unique requirements of DOOH environments — including real-time audience measurement, loop-based scheduling, and location-based targeting. The platform enables advertisers to buy DOOH inventory programmatically using data signals such as audience demographics, weather, time of day, and proximity triggers, while giving media owners tools to monetize their screens more effectively. Hivestack grew rapidly to operate across more than 25 countries, connecting thousands of digital OOH screens globally through its marketplace. The company positioned itself as a neutral, independent technology layer within the DOOH ecosystem, attracting major media owners, brands, and agencies as clients. Its technology was recognized for enabling true programmatic trading of DOOH — including real-time bidding (RTB) — at a time when the channel was transitioning from static to dynamic, data-driven buying. In 2023, Hivestack was acquired by VIOOH, the programmatic DOOH platform backed by JCDecaux, creating a significantly scaled global DOOH programmatic entity. The combined company aimed to accelerate the adoption of programmatic trading in out-of-home advertising worldwide. While Hivestack continues to operate as a brand and platform under VIOOH ownership, the acquisition marked a major consolidation moment in the DOOH ad tech landscape.