Network FOuNTAIN A CDBB network: For ONTologies and information maNagement in digital built Britain: Final report DemianPeter YeomansSteven Murguia-SanchezDanny E. WestMatthew BarrStuart BeachTom KassemMohamad BuhagiarJulian ChapmanLawrence GibbsDavid-John HomeRollo JordaanAndrew LeonMarianthi MillsJamie MurphyJoseph PopaAndrei RushIan SaadoonHadeel SavianCristina SimpsonMartin TappendenGraeme TurneyPaul WangYing 2019 Network FOuNTAIN is the Network For ONTologies And Information maNagement in Digital Built Britain. The Network is supported by the Centre for Digital Built Britain. The vision of the Network is for all stakeholders in Digital Built Britain (DBB) to be able to meet their information needs. With the establishment of concepts such as Building Information Modelling (BIM) and Common Data Environments (CDE), built environment design, construction and operation are becoming increasingly information-intensive. The Network undertook five workshop activities between July and December 2018. This report summarises the proceedings of these workshops, and in particular establishes future capabilities needed to realise the vision of DBB.