OLYZON SAS

IAB Video Leadership Summit 2026 Recap

The IAB Video Leadership Summit 2026 convened senior leaders across the video ecosystem to discuss obstacles to industry progress, particularly trust and governance around AI. IAB research cited in the event shows digital video ad spend surpassing $80 billion in 2026 and growing roughly 20% faster than the wider ad market. Panels flagged strong AI infrastructure but weak governance — agentic systems lack transparency and audit trails — while a contextual targeting case study outperformed benchmarks by nearly 60% using URL-level transparency and in-flight optimization. Panelists argued that all video now functions as performance video and called out structural and commercial barriers to scaling connected and live streaming (including adoption of IAB Tech Lab protocols such as LEAP and legacy TV sales workflows). Sponsors included Moloco (Platinum) and supporting sponsors Atmosphere TV, Olyzon, and Claritas.

Olyzon raises $10M for CTV platform

Olyzon has closed a $10 million Series A round led by S4S Ventures, with returning investors including Eurazeo. The company positions itself as an agent-based decision layer for Connected TV (CTV) advertising, using AI agents to evaluate inventory, build cross-platform media plans, push decisions into existing DSPs/SSPs and publisher ad servers, and consolidate measurement signals into composite KPIs. Olyzon said it will use the funding to further develop its platform, expand internationally—scaling US activities and opening a London office—and will announce additional product and partner updates at Cannes Lions in June. Named executives quoted include Jules Minvielle (Co-Founder & CEO of Olyzon), Sir Martin Sorrell and Sanja Partalo (leaders of S4S Ventures). Reported clients include Publicis, WPP, OMD, Mastercard, Loewe, Audi, McDonald’s and DoorDash.

S4S Ventures Leads $10M Series A for Olyzon

Olyzon, a two-year-old French ad tech firm that positions itself as an agentic decisioning layer for Connected TV (CTV) advertising, closed a $10 million Series A round led by S4S Ventures. The investment vehicle was co-founded by Sir Martin Sorrell and Sanja Partalo; existing backers from a prior $5 million round, including private equity firm Eurazeo, also participated. Olyzon’s platform uses AI agents to map inventory across DSPs, SSPs, publishers and measurement vendors, adapt creative, push decisions to buyers’ execution systems, and consolidate measurement for in-flight and future optimisation. Clients named include Pepsico, Danone, McDonald’s, Nissan, Mastercard and L’Oreal. Olyzon said the funding will be used to expand U.S. operations, open a London office, and drive further product development. (Publication date: 2026-05-28.)