The collaborative project PharmaSea brings European researchers to some of the deepest, coldest and hottest places on the planet. Scientists from the UK, Belgium, Norway, Spain, Ireland, Germany, Italy, Switzerland and Denmark are working together to collect and screen samples of mud and sediment from huge, previously untapped, oceanic trenches. The large-scale, four-year project is backed by almost 10 million euros of funding and brings together 24 partners from 13 countries from industry, academia and non-profit organisations. The PharmaSea project focuses on biodiscovery research and the development and commercialisation of new bioactive compounds from marine organisms, including deep-sea sponges and bacteria, to evaluate their potential as novel drug leads or ingredients for nutrition or cosmetic applications. The Royal Society of Chemistry is responsible for developing a number of capabilities to support the Pharmasea project including a chemical registration system for new compounds, dereplication technologies to assist in the identification of new compounds and search techniques for mass spectrometrists within the project. This presentation will provide an overview of the project and our progress to contributing chemical information technologies to support the effort.