Ian Anderson, Member of SCMS, IMarEST, YDSA, Dipl. Marine Surveying IBTC., Senior Associate

Ian has a seagoing Marine Engineer background, starting as a HND cadet in the subject, at Southampton, progressing through the ranks, over 28 years with P&O, to Engineer Superintendant with P&O Cruises fleet and finally to Technical Superintendent and Fleet Technical Manager.

A change of career in 2002 led to his appointment as East Division RNLI fleet Engineering Manager, obtaining Diplomas in Marine Survey for Lloyds Academy and obtained a "Distinction" in practical yacht surveying at the International Boatbuilding Training College (IBTC).

Since that time Ian has built on these acquired skills, joined the YDSA, and SCMS. He was elected to the YDSA committee and served a 3 year term on it and has been a member of IMarEST for some 40 years.

In 2008 Ian started his own East Coast business ANDMarine Ltd., specializing in small commercial and private vessels, charter code survey work, insurance, cargo and pre-purchase work, a ll predominantly with steel built ships and barges, but also Ian has considerable experience with GRP yacht work and is a very valuable addition to the BMS team.

Now runs the "back office" for all BMS Associates from hims home in Felixstowe


Stefan Fritz, Dipl.-Ing., MCMS, Senior Associate

Stefan graduated from Stuttgart University with a Degree in Engineering (Dipl.- Ing.) and followed this with research studies at Brunel University UK in Manufacturing and Engineering systems.

On purchasing a vintage Dutch sailing barge, Stefan began to specialize in marine engineering generally and in particular the design, construction, repair and rebuild of steel vintage and modern classic vessels under sail and power.

This specialization led to proprietorship of boatyards on the River Thames, activities in marine surveying on joining BMS, and becoming qualified as a sailing barge charter skipper of off-shore international and coastal small vessels, together with expertise in traditional sailing rigs.

Stefan now concentrates, mostly, on surveying and lives on the Thames in a Dutch Sailing Tjalk, and is part owner and part-time skipper of a 32m square rig brigantine charter vessel.

He is licensed for BW/EA boat safety certificates (BSS) and carries out Tonnage Certification and other such examinations for the SCMS/ MCA certifying authorities. Stefan is a member and ex-director of the Dutch Barge Association and is a co-founder of the Sailing Barge Interest Group Section of that association.

He is a certificated Charter Barge Skipper, and much in demand delivering both motor & sail vintage vessels between Europe and UK.


David Pestridge, CEng, MSc, MA, MIMechE, MIIMS, MCMS, SCMS, Staff Surveyor

David trained originally as a mechanical engineer and after university graduation was commissioned into the Corps of Royal Electrical and Mechanical Engineers in the British Army. During his service time David spent several years seconded to the Royal Marines of 3 Commando Brigade in Devon. He had responsibility for delivering forward support and in-depth repair whilst ashore and afloat of all land vehicles, amphibious assault craft and logistic barges.

After 17 years commissioned service he re-trained as a Marine Surveyor and completed the Diploma in Yacht and Small Craft Surveying, accredited by the International Institute of Marine Surveying (IIMS), and set up White Hat Yacht Surveying Limited. His extensive service experience with Marine Craft and barges in the Marine Commando Brigade is much valued now in his work with Bowen Marine Associates.

In 2009 David was elected Member of the Institution of Mechanical Engineers, is registered as a Chartered Engineer, and is a Full Member of the IIMS. His varied expertise thus gained has been brought to his work with us at BMS to good effect. His wider experience with vintage wooden hulls and GRP structures is also now offered.

David has been an active sailor for over 20 years and has cruised and raced a wide variety of dinghies and yachts in the UK, Europe, Baltic and Caribbean. He holds the RYA Yachtmaster Offshore qualification, has passed the Approved Engine Course and is STCW95 trained. He is currently restoring Puffin, a 1936 2.5 ton Hillyard wooden hulled yacht, and is based south of the River Thames.

For the last six years David has mainly surveyed Dutch barges, Narrow Boats and Houseboats, very successfully, for BMS in and about London and it's rivers.


John Bowen, CEng, Fellow SCMS, Fellow IMarEST, Retired Principal Associate

John founded the beginnings of BMS in 1984 after a long career in the Royal Navy as a sea-going Marine Engineer, Designer and Warship build overseer, during which he rose to the rank of Captain, RN. On leaving the RN, he firstly owned a wharf and dry dock on the Grand Union Canal in the Midlands and subsequently moved to Malthouse Wharf in Brentford, living on, and cruising in, his own Dutch Barge, both in the Thames area and France.

After a Marine Surveying and Consultancy "second career" spanning some 30 years specializing in vintage steel vessels, John has now retired from "active service" with BMS. He maintains a strong interest in Vintage Thames Spritsail vessels on the East Coast. He is available on a mentoring and informal consultancy basis from his home in Suffolk by the River Orwell.