MNTB The Merchant Navy Training Board (MNTB) is the shipping industry’s central body for promoting and developing seafarer education, training and skills. The MNTB is part of the UK Chamber and provides a key link to ship management companies, educational establishments and trade unions. For more information on the MNTB, please visit their website. Careers at Sea Careers At Sea manages the full breadth of the MNTB’s careers promotion activity – from initial enquiries into maritime opportunities to job development for those already at sea. For more information on Careers at Sea, please visit their website.