Clarkson PLC is an investment holding company. Its subsidiaries are involved in the provision of shipping related services. Its segments include broking, financial, support and research. Its broking division represents shipowners and charterers in the transportation by sea of a range of cargoes. The financial division includes a futures broking operation, which arranges cash settled contracts for differences based upon standardised freight contracts and a financial and investment services division representing the provision of advice to clients on the financial aspects of a range of shipping-related transactions. Support includes port and agency services representing ship agency services provided throughout the United Kingdom and property services regarding the provision of accommodation. Research services include the provision of shipping-related information and publications. On December 16, 2011, it acquired Boxton Holding AS. On November 30, 2011, it acquired EnShip Limited.