Optimarin offers state of the art Ballast Water Treatment System – compliant with both IMO and USCG regulations.

24 years of experience using filter and UV to treat ballast water in a way that is friendly for the environment.

Simple, effective, reliable

Optimarin ballast water treatment system combines simplicity with innovation. We utilize a combination of automatic back flushing, self-cleaning filters and powerful UV irradiation to neutralize all potentially invasive species in the 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. 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.

Dedicated to Ballast Water Treatment, 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 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.


Are you ready to take the next step towards an Optimarin ballast water system?
We would love to provide more information or a quote for your specific vessel.

Contact Optimarin


20 Dec 2018

Royal Caribbean looks to Optimarin for global compliance

Posted in Press release
Royal Caribbean looks to Optimarin for global compliance

Royal Caribbean International, one of the world’s leading cruise ship operators, has chosen Optimarin to provide its USCG compliant Optimarin Ballast System (OBS) for three flagship vessels. The Norwegian-based ballast water treatment (BWT) specialist has now retrofitted its market proven technology on Independence of the Seas and Mariner of the Seas, with installation on Grandeur […]

27 Nov 2018

Optimarin enables Subsea7 USCG upgrade in ‘a couple of hours’

Posted in Press release

Optimarin has demonstrated how easy it is for existing Optimarin Ballast Systems (OBS) to be upgraded to full USCG compliance with a visit onboard Subsea7’s Seven Pacific. The ballast water treatment (BWT) specialist, the first manufacturer to achieve USCG approval in December 2016, originally installed its UV-based technology onboard the advanced offshore construction and pipe-laying […]

21 Nov 2018

Optimarin consolidates Fednav relationship with retrofit and newbuild orders

Posted in Press release
Optimarin consolidates Fednav relationship with retrofit and newbuild orders

Optimarin has signed a contract to supply seven of its USCG-approved Optimarin Ballast Systems (OBS) to Fednav, Canada’s largest ocean-going dry-bulk shipowning and chartering group. Five of the units will be fitted on existing vessels within the 63-strong Fednav fleet, with two deliveries set for newbuilds. The order comes on top of agreements for five […]

About us

Me and the sea

  • Øystein, Electro and Automation Engineer

    I love to see the ocean, live by it, live it.

    - Øystein, Electro and Automation Engineer
  • Bodil, HSE & Q/HR Manager

    The early morning peacefulness on the terrace overlooking the sea, listening to its perfect silence.

    - Bodil, HSE & Q/HR Manager
  • Stig Rune, Sales

    “I love the sea because it’s full of fish”

    - Stig Rune, Sales