About CSO Shipbrokers

Established in 2016, CSO Shipbrokers provides vessel chartering, sale and purchase, data analysis, and market intelligence for the offshore renewables, energy and offshore construction markets.

Our wealth of experience and vast industry network enable us to provide the most favourable solutions for our clients.

Tony Colebook

Chief Executive Officer

CSO Marine Group

Tony Colebook

Chief Executive Officer

CSO Marine Group

With over 20 years’ experience in the renewables and offshore sectors, Tony founded CSO Shipbrokers in 2016.

He has been involved in the renewables industry since the installation of the Gabbard Project in the North Sea up to present day activities in the US, Far East and European Markets. Prior to working in the marine industry, Tony was active in the aviation and logistics industries, supporting range of projects in Africa and the Middle East.

Although Tony now heads up CSO Marine Group, he is still a valued Director at CSO Shipbrokers, and is instrumental in decision making and client support.

Tony also sits on a number of corporate boards, providing advice at a strategic level to companies entering the wind and renewables sectors.

Sam Stout

Managing Director

CSO Shipbrokers

Sam Stout

Managing Director

CSO Shipbrokers

CSO Shipbrokers’s Managing Director, Sam, began his shipping career with Maersk Broker in 2010.

Following three years working in Maersk offices in Copenhagen, Hong Kong, Madrid and Buenos Aires, Sam relocated back to London to focus solely on the offshore energy markets. 


With a focus on the chartering of vessels into the offshore construction and renewables markets ever since, Sam has a demonstrated track record in the chartering of OSVs, and alongside Tony, has developed CSO Shipbrokers into a market-leading brokerage and market intelligence provider in the Offshore Wind Sector.

Sam is also a volunteer on the Thames Estuary Lifeboat, where he works with the RNLI on rescue operations throughout the year.

Our Company

Our team based in London conclude more than 500 fixtures per year, in markets ranging from Taiwan, to Korea, the UK, USA, Europe and the Baltic Sea.

We also produce regular specialist market reports providing industry-leading data on vessel availability and market movements in the CTV, SOV, survey, construction, and tug and barge markets. Founded by Tony Colebrook and Sam Stout, with more than thirty five years experience, CSO Shipbrokers has built a valued network to ensure we can meet and exceed client expectations.

CTV Vessel heading towards a Wind Farm in rought seas.

Count on us

Choose CSO Shipbrokers for your chartering, sale and purchase, or market intelligence needs, and you can be sure that you will receive the best offering for your requirements. Our extensive experience enables us to source the most favourable solutions for our clients worldwide.