Jeffrey Blum has experience since September 1972 in shipbroking, chartering, owning and operating tankers and dry cargo ships, multimodal freight forwarding, military and commercial project cargoes and other logistics.

Jeffrey Blum has been involved in shipping and trading since 1972. He is the fourth generation of a shipping and freight forwarding family, has been a member of the Baltic Exchange since 1976 and has worked with a Lloyd's underwriter, a Lloyd’s broker and as a shipbroker, ship owner, ship operator (including commercial heavy lift project cargoes and later multi-modal logistics for United Nations Peace Keeping Forces for 4 years), gasoil futures broker, charterer and commodities trader in London and abroad.

Interlink International Trading (UK) Ltd was founded by him in 1994, providing maritime and commodities commercial claims consultancy and bespoke corporate training. His clients include oil majors, commodity traders, shipowners, P&I Clubs, shipbrokers, law firms, international shipping organisations and governments.

In 2002 Jeffrey founded and is the principal lecturer (with 30 guest lecturers) of Maritime Education & Training Ltd (METL), which provides bespoke tuition for international students who take the annual examinations of the Institute of Chartered Shipbrokers or who simply wish to have bespoke training without exams.

He has contributed articles to many trade magazines and chapters to textbooks.

He has been a Fellow of the Institute of Chartered Shipbrokers by examination (3rd in the world) since 1979 and has served on the ICS London & South East Branch since 1983, as the Education Officer since 2000 and past Chairman (2005-2007) and again Vice Chairman (2015-2017) of the London & South East Branch, having also served on the International Controlling Council, International Membership Committee and the UK & Ireland Zone Committee and currently on the International Education Officers Committee.

Jeffrey is also a Fellow of the Chartered Institute of Arbitrators, is a Supporting Member of the London Maritime Arbitrators Association and has been an arbitrator (both sole and tribunal) since 1994 and an expert witness since 1983. He has been on the controlling council of ICSAS (International Commodity and Shipping Arbitration Service) since its creation in 2005.

He was a member of the Council of the Baltic Exchange Experts Panel 2006-2010 and a member since 2016 (Council member since 2019, Chairman since 2020) of its successor BEWA, Baltic Expert Witness Association.  

In 2019 he was elected to the Singapore Chamber of Maritime Arbitration (SCMA). 

Since 1984 he has been lecturing on several subjects of Maritime Studies and Law at universities and colleges in London, throughout the UK and abroad. He is a Visiting Professor at the World Maritime University at Malmo and the Shanghai Maritime University (both since 2007) and is a frequent guest presenter at bespoke, academic and public training conferences and masterclass workshops worldwide.