Start-up Valley Contest: Kuwalyst

Kuwalyst builds agentic marketing science products based on open weights models. Among them is the Media Planner, a software that helps agencies and brands create, monitor and refine evidence-based media plans. Teams compare budget scenarios with projected return and an uncertainty range, follow the live campaign against its goals, and receive recommendations that state the hypothesis, the action, the expected impact and a confidence level. Every figure is tagged as measured, projected or benchmarked, and a first plan is ready within an hour. Founded in Paris in December 2025, Kuwalyst works with clients in France, the UK, the US and Japan. Data and AI stay in the EU.