Ship Valuations

As independent marine experts and evaluators, we provide market valuations for new buildings and second-hand vessels and offshore constructions.

We work with many of Germany’s leading ship financers and international banks, as well as national and international shipping companies, ship owners, KG houses and underwriters.

At Weselmann, we offer a wide range of inspections and technical assessments, conducting approximately 750 ship inspections and marine constructions worldwide per year.

Marine Surveys

Towage Approvals & Heavy Lift Supervision

We have a wealth of international experience in towage approvals and heavy-lift supervision.

Prior to operations being carried out, we make assessments to satisfy underwriters and owners and ensure all procedures meet the appropriate criteria.

The scope of the valuations made is reliant on the type of towage/lift.

Assessments include a desktop evaluation and check of the towage plan and procedures together with a recommendation, as well an on-site technical inspection of the vessel and towing/lift arrangement.

Since Weselmann was founded in 1947 we have built up decades of experience in the field of Marine Consultancy Services. 

Our knowledge spans Marine Engineering and Naval Architecture related to design, calculations, drawings, supervision, advisory services and, with the expansion of the company, we now also cover commercial and operational aspects.

Marine Consultancy Services

Inland Waterway Services

As the appointed consultants for Hamburg’s Harbour Port Authority and the Central Ships Inspection Commission for Inland-Water-Way Vessels (ZSUK), Mainz, our history of providing them with dedicated services spans decades.

At Weselmann, not only are we accredited to act on behalf of the authorities, we also perform an advisory role directly to owners, assisting with new constructions, conversions, repairs etc. as well as covering stability and strength calculations, tendering, supervision etc.

We provide independent risk assessment and loss prevention on behalf of marine underwriters and P&I Clubs.

Condition surveys require a deep knowledge of the technical and operational aspects of the trade, international regulations, and safety requirements, as well as the risks to which insurers are exposed.

Loss Prevention process is based on formal risk assessments of potential hazards systematically identified within Safety Management systems.

The commission to work through identification of risks and to evaluate safety measures is abstract.

Our team of experienced surveyors will deliver a detailed assessment to the client’s requirements.

Risk Assessment and Loss Prevention

Remote Vessel Assessment and Monitoring

If a physical inspection is not possible due to location, costs or a client’s wish to use a remote monitoring system, we are also qualified to provide this service.

The scope of the assessment is tailor-made to the needs of the client. Evaluations and assessments are made by our expert technical team, based on the analytics, information and data made available. This includes technical data, class records, performance reports, overhauling data, port/flag state controls, ISM records etc.

The factory acceptance test (FAT) is a detailed examination performed by the vendor upon completion of the manufacturing process to verify equipment meets the requirements and functionality indicated in the datasheet, specification and purchase order.

We currently provide this service for numerous shipyards, protecting their interests during the FAT in order to guarantee quality and compliance as per the specification of equipment purchased from the supplier. This includes all marine-related equipment, such as engines, thrusters, boilers, evaporators etc.

Our international experience spans many years, working on behalf of shipyards engaged in the construction of standard tonnage as well as large cruise ships and sophisticated luxury yachts.

Factory Acceptance Tests


We provide superintendent inspections and general supervision services for the technical departments of ship companies.

Either short or long-term assignments, which may include regular fleet inspections, handling of ad hoc technical matters, supervision of constructions and arrangement of necessary repairs etc.

Thanks to a strong background covering every class of ship-management, along with solid experience of superintendence and supervision services across a range of projects, our team has all the technical expertise required to meet the client’s needs

As expert witnesses or technical advisors in marine enquiries and investigations, our crew offer a wealth of international experience.

Over the years we have acted on behalf of international clients in countless disputes and arbitrations, attending court cases in Germany, as well as the UK, Denmark and Singapore.

The accident investigation is significant to create responsibility as well as to prevent a recurrence, and we have wide experience with investigating the origins of accidents.

Expert Witness and Advisory