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Sustainable Solutions for the Maritime Industry

Driving Maritime Sustainability, Efficiency and Compliance in Global Shipping

At Goltens, we are committed to helping shipowners and operators reduce emissions, optimize fuel efficiency, and comply with evolving environmental regulations. Goltens Green Technologies delivers cutting-edge sustainable maritime solutions, ensuring fleets remain efficient, compliant, and environmentally responsible.

Goltens Green Technologies has a proven track record of success that is unmatched in the market. Leverage Goltens’ global network and proven processes and leave the coordination of your retrofit project with us. We are focused on finding the most efficient solution and minimizing operational impacts for owners. Goltens is your trusted partner for a greener maritime future.

Experience and Proven Processes Matter

Since 2010, we’ve installed just about every type of ballast water system in just about every type of vessel as well as many other EGCS and compliance related systems.

Along the way, we’ve built up capabilities and processes fit for any type of transition project, including 3D scanning, design engineering, pre-fabrication and installation management, as well as navigation of environmental regulations and approvals.

This is now deployed in a wide range of retrofit applications as the industry explores new ways of tackling the environmental challenges posed to the global shipping industry.

Our Track Record

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Launched in 2010

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Six global centers of excellence

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2,000+ projects completed

Value for Customers

Independent Service Provider

We are an independent service provider specializing in sustainable maritime solutions. From ballast water treatment to emission reduction and waste heat recovery, we deliver tailored, eco-friendly, and cost-effective services.

Regulatory Compliance

We ensure all our services comply with the latest regulations and industry standards. We stay up-to-date with evolving rules to provide solutions that meet legal requirements and support our clients’ compliance needs.

Experienced Professionals

Our team brings valuable hands-on maritime experience to the office. Many of our employees have sailed themselves, giving them a unique understanding of the challenges we address and enabling us to provide more effective and practical solutions to our clients.

Turnkey Project Delivery

We deliver full EPC turnkey retrofit solutions—from 3D scanning and engineering design through procurement, prefabrication, installation, commissioning, and lifecycle support—ensuring efficient execution, technical precision, and consistent, high-quality results.

Ongoing Service and Support

Goltens Green delivers global, lifecycle service support for retrofit solutions—combining expert field execution, advanced diagnostics, and responsive project oversight to maximize uptime, optimize performance, and ensure long-term reliability.

Advanced Engineering Solutions

From new builds to existing vessels, we excel in Retrofit & Modification Engineering and Newbuilding Engineering

Shipping Decarbonization Solutions and Services

Decarbonization Solutions

Decarbonization Solutions

At Goltens Green, we help the maritime industry reduce emissions with innovative solutions that improve fuel efficiency and meet environmental regulations. From engine optimization to energy recovery, we support sustainable, efficient shipping for a greener future.

Design Engineering

Design Engineering

We specialize in delivering innovative design engineering solutions tailored to the needs of both retrofit and new build marine projects. Our team of skilled engineers and project managers provides end-to-end sustainable maritime solutions that maximize efficiency, reduce environmental impact, and ensure compliance with the latest maritime regulations.

Green Products and Systems

Green Products and Systems

Goltens represents a variety of top tier sustainable shipping products and systems solutions providers and facilitates the turnkey retrofit installations globally.

3D Scanning and Modeling

3D Scanning and Modeling

Goltens utilizes 3D scanning and modeling in most of its retrofit design projects but also leverages this technology for standalone scans to document “as built” conditions, onboard survey, digital twinning and other requirements. 

BWTS Inspections and Sampling

BWTS Inspections and Sampling

Goltens Green Technologies has led the way in ballast water treatment system retrofits, successfully completing nearly 900 projects. Goltens supports full retrofit, re-retrofit and ongoing support and service.

Monitoring / Reporting / Route Optimization

Monitoring / Reporting / Route Optimization

We prioritize continuous monitoring to ensure optimal performance and compliance with environmental regulations. Our comprehensive monitoring services include exhaust gas measuring, detailed reporting, and route optimization

Global Services with Expertise and Efficiency

At Goltens Green, we provide global services under expert supervision, with a strong focus on minimizing downtime and ensuring efficient maintenance. Our team of experts is dedicated to supporting all your maintenance needs, ensuring your operations run smoothly and without interruptions. This is especially crucial for ships, where efficient maintenance is vital to avoid costly delays and ensure safety at sea. Trust Goltens Green for reliable and efficient solutions, no matter where you are in the world.

Green Technologies Videos

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Timelapse video of Optimarin Retrofit Installation

Case Studies