Europe can build a resilient and cost-effective energy system by integrating hydrogen into offshore energy planning, but cooperation among infrastructure operators is still emerging. HyNOS – Hydrogen Network Operators of the Northern Seas – unites hydrogen transmission system operators from the Northern Seas to develop a shared view on the benefits of on- and offshore hydrogen production from offshore wind. The initiative engages with electricity TSOs and policymakers. This paper is HyNOS’ first expert contribution in the context of the third North Sea Summit in Hamburg in January 2026, outlining hydrogen’s strategic role in Europe’s offshore energy future and providing key policy and market design recommendations.