Olyzon, a Paris and New York-based agentic CTV advertising decisioning platform, has raised $10M in Series A funding led by S4S Ventures. The platform uses AI agents to automate media planning, enable contextual program-level targeting, adapt creatives, activate across DSPs/SSPs/publishers, and measure outcomes in a continuous feedback loop. The capital will fuel US expansion and a new London office ahead of Cannes Lions.
CTV Ad Spend Surges Amid AI Shift
The timing comes amid rapid CTV market growth. US CTV ad spend is projected at $33.5B-$38B in 2026, growing 14% YoY toward $52.53B by 2029. Olyzon's approach, a decision layer that sits atop existing stacks without rip-and-replace, addresses the gap where CTV delivery has digitized but decision-making remains manual.
Fragmented Inventory Raises Planning Costs
Marketers face exploding CTV inventory options with no unified decision system. Nearly 80% of marketers surveyed plan to increase CTV budgets by at least 11%, while almost half redirect 5-30% of linear TV spend to CTV. Current DSP and SSP workflows require paying multiple fees for transactions that lack real-time contextual adaptation.
Agentic Layer Automates Decision Loops
Olyzon built an agentic OS with five AI agents for Map, Score, Adapt, Activate, and Prove. It enables program-level targeting and compounding intelligence across campaigns, delivering +20% brand lift and -25% cost per incremental reach in deployments. This differs from legacy optimization tools by running continuous feedback loops on top of existing infrastructure.
As Jules Minvielle noted in recent coverage:
"In CTV, advertisers currently pay both a DSP and an SSP for a transaction that agents can now handle end-to-end."
S4S Ventures Leads With Adtech Expertise
S4S Ventures led the round, backed by Sir Martin Sorrell's advertising network and focus on AI-native platforms. Eurazeo, Ventech, and Cassius Capital participated, continuing support from the prior $5M seed. The investor mix signals validation for scaling an agentic CTV platform from Europe to global brands and agencies.
$38B Market Draws AI Decision Tools
CTV ad spend growth and agentic AI trends are pulling capital into decisioning layers. Olyzon positions itself as the intelligence layer complementing DSPs rather than competing on execution infrastructure. Partnerships with Innovid and Swivel demonstrate early ecosystem traction for agent-to-agent workflows.
US Expansion and London Office Next
With the new funding, Olyzon plans US market scaling and a London office timed for June Cannes Lions announcements. Recent client work includes agentic campaigns for Pierre Fabre entering the US market via Swivel partnership.