We never compromise on safety


All employees on board undergo a strict health examination by a certified medical examiner before
commencing work on board our vessels. Once on board, our personnel are trained to keep a high
standard of food and hygiene at all times. All vessels are equipped with exercise equipment on
board for the crew’s disposal.


We work hard to create a safe working environment with no personal injuries, environmental- or property
damage. Safety is a cornerstone of good seamanship and is something we never compromise on. The
philosophy is continual improvement.


Personnel on board and in the office are trained and certified to ensure a secure operation for all vessels
in all waters. We carry out scheduled drills and stay updated on latest security threats at all times.


We invest heavily in research and development to ensure the most environmentally friendly fleet with the most fuel-efficient
technology. Masters aim to sail at an optimal speed to ensure clients’ needs are met in the most cost-effective and
fuel-efficient manner.

Quality / Certifications

Our safety management system is ISM certified by several flag states.

We hold the following certifications:

  • ISO 9001:2015
  • ISO 14001:2015
  • ISO 45001:2018
  • ISPS

In addition, we hold accreditations within OCIMF OVMSA, Magnet JQS, Achilles Utilities NCE, Achilles Oil and Gas Europe and SEQual.

Safety timeline

1975First in the world to introduce high sides on platform supply vessels (PSV) to ensure deck workers safety. Industry standard today.
1981Moved the cargo manifold area to a deck above main deck on Edda Fram. This to protect the personnel from shifting cargo.
1982First in the world to install dynamic positioning (DP) on a PSV (Edda Fjord). Industry standard today.
1985Developed and implemented our first quality management system.
1996Certified according to the International Safety Management (ISM). Code and Document of Compliance issued.
1997The tugs Thrax and Silex became the first tugs in the world to be issued with a Safety Management certificate by Det Norske Veritas (DNV).

Introduced the hose catcher on Edda Frigg. A cargo hose-securing device that ensures the safety of the crew. Installed trip trays to collect oil spill on PSVs.
1999As the first vessel in our company the PSV Edda Freya had a DPII system installed.
2005To increase the steering force, we installed a Voith turbo fin on our VSP tractor tugs as one of the first in the field.

Achieved the ISO: 14001 certification as one of the first companies in our field.
2016Became the first shipping company in the world to get 9001:2015 accreditation from DNV GL.