Optimarin is the market proven choice for trusted, reliable, simple and 100% globally compliant ballast water treatment system (BWTS).

Through more than twenty years of experience, Optimarin focus exclusively on continuous improvement and supplying environmentally friendly BWT solutions for the shipping industry.

Optimarin has sold more than 500 of its market proven Optimarin Ballast System (OBS) and delivered more than 400.


Our newbuild and retrofit experience is second to none, with over 100 retrofits completed and newbuild contracts with a who’s who of key global yards. This ensures our worldwide customers unparalleled expertise, understanding, and complete peace of mind.

Our range of systems also include Ex systems & pre-assembled units.


100% compliant Ballast Water Treatment System

For optimal fleet flexibility, you need the ultimate in regulatory compliance.

OBS was the first BWT system to achieve full USCG approval – a landmark for the entire ballast water sector. USCG BWT approval is the most stringent in the industry, meaning that once a system has satisfied its exacting testing criteria it effectively has a worldwide ‘ticket to trade’.

Add this to full IMO approval and certification from DNV GL, Lloyd’s, Bureau Veritas, MLIT Japan, and American Bureau of Shipping and you can rest assured that you have the best technology, reputation and compliance the market can offer.


Simple, effective, reliable

OBS combines simplicity with innovation, utilizing a combination of automatic back flushing, self-cleaning filters and powerful UV irradiation to neutralize all potentially invasive species in ballast water.

With a modular nature, the system is flexible and easy to install on any vessel (newbuild and retrofit) – even those with the most restrictive space demands. Our solution does not use nor generate chemicals in its process. The system is purely based on filtration as pre-treatment and high doses of UV irradiation for inactivation of marine organisms. Most importantly: It is simple to operate and maintain.

Whatever your vessel, whatever your operations, whatever your individual requirements – Optimarin has the experience and technology your business demands.


Your worldwide partners

Optimarin offers efficient worldwide installation and unbeatable engineering expertise. Through agreements with global engineering leaders Goltens Green Technology B.V. and Zeppelin Power Systems GmbH & Co. KG, the company can be wherever you need us to be – maximizing efficiency, minimizing downtime.


Dedicated to Ballast Water Treatment System, dedicated to you

No one knows ballast water like Optimarin. We were the first ever company to install a commercial ballast water treatment system, in 2000 on-board the Princess Regal, and have been refining our technology ever since.

We don’t do anything else. We are committed to supplying systems that protect both the environment and the commercial interests of our customers.

We know this industry and we understand your needs.


Trust Optimarin – the world leaders in compliant, effective, simple and reliable ballast water treatment systems.