This report was prepared to frame how the UK tidal stream industry can work collaboratively in a way which adds valuable capacity to the UK energy mix at an affordable cost and create long term export opportunities for a UK supply chain. It builds on previous work published by ORE Catapult in May 2018 to identify areas where some key players in the industry can work together on cost reduction actions which can be pursued in the near term to put the industry in the best possible position to achieve its full potential when further revenue support is made available in the UK, and how marine energy can benefit the UK energy mix in a way that other resources are unable to.