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Protection & Indemnity

Reliable cover for shipowners and charterers of seagoing vessels and inland craft.

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What we do.  Who we are. And how you can benefit from our expertise and services.

Freight, Demurrage & Defence

Insurance coverage for legal services, loss prevention, claims assistance and cost containment in the area of shipping disputes for shipowners & charterers.

Customised. Reliable. Seaworthy.

Hanseatic Underwriters represents a co-insurance consortium of first-class, A-rated, long-established marine insurers offering fixed premium insurance coverage for Protection & Indemnity as well as for Freight, Demurrage & Defence.


rated A+

million USD Limit

days at your service

correspondents worldwide

In 2018, Thomas Miller Specialty (TMS) expanded its fixed premium P&I business through the acquisition of Hanseatic Underwriters and has now combined its fixed premium P&I businesses to create one integrated team across two strong hubs, Hamburg and London. TMS' and Hanseatic's websites will be merged in due course to provide our customers one uniform and service driven online platform. During the transition period you can find further information about Thomas Miller Specialty here:

Latest News from Hanseatic Underwriters™

Renaming of ZAM to TMS

The managing company behind Hanseatic Underwriters™, Zeller Associates Management Services was renamed to Thomas Miller Specialty on 17 September 2019. The renaming will have no effect on our business relations, in particular the contact persons known to you and their contact details.

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Our Products

No matter if you look for rock-solid Protection & Indemnity or taylor-made Freight, Demurrage & Defence –

you always get our specialist underwriting for P&I and FD&D!

Core Features

For our customers’ satisfaction all our insurance products fullfill the hightest standards!

Fixed premium

We follow our proven philosophy and offer P&I and FD&D cover on a fixed-premium basis only.

Fully A+ rated

All insurers participating in our insurance products are fully A+ rated.


No supplementary calls

No need of “supplementary call” payments for claims of others, when a bad year is expected.

No additional calls

At the signing of the contract assureds know their final insurance costs.

Reliable acceptance

All aspects from “Arrest Guarantees” , “Bank Acceptance” or “Japan Admission” to “COFR” or “Blue Cards” are reliably covered by our services.


Rules & conditions

Clearly understandable insurance conditions according to international standards

Our Portfolio

The successful concept of focussing on small and medium-sized vessels led to an actual portfolio of more than 2,600 vessels covered by Hanseatic P&I, Hanseatic Defence and Hanseatic Cruise Cover.

Active vessels

  • Tanker 2% 2%
  • Bulker 8% 8%
  • Container 21% 21%
  • General Cargo 45% 45%
  • Special Craft 7% 7%
  • Others 17% 17%