About Us

Over the past decade, we have transformed our vision of robotic propeller polishing, cleaning, and inspection from concept to reality. What began as an innovation project in Copenhagen, Denmark has grown into a proven solution, now headquartered in Odense, Denmark – and available to vessel operators worldwide.

Through years of rigorous testing in real operating conditions, we have developed a robotic system that eliminates the need for divers while making propeller maintenance safer, faster, and more efficient. Our technology consistently delivers results equal to or better than traditional methods – without the limitations of human divers. We can polish an average propeller in around 10 hours, operating both day and night, giving ship operators unmatched flexibility and minimizing downtime.

We have already carried out successful operations in ports such as Rostock, Aarhus, and Oslo and many other European ports, where leading operators like Hurtigruten have chosen our services. Today, we are expanding globally, offering propeller polishing, cleaning, and inspection in major ports across Europe and beyond.

With a strong focus on efficiency, safety, and measurable fuel savings, we are setting a new global standard for propeller maintenance.

The SubBlue Robotics Team

Don Fischer

Founder and Head of R&D

HD Finance & Mechanical Engineer

Has worked as a shipping trainee and is a trained mechanical engineer. Has legs both in business and engineering. Primary focus is customer relations, financials and mechanical design (especially waterproofing).

Michael Blom Hermansen

Founder and CTO

Mechanical Engineer

The primary engineer and has a primary focus on robotics, strength dimensioning and all-around physics. Designed the robots first electronics, software and control methods, and is an experienced operator of the robot.

Malberg Hentze

COO

Mechanical Engineer

Experienced electrical engineer with high enthusiasm in difficult situations with a prominent can-do attitude. Designs robust electronics, designed the ERP system and the ship trafficking software to locate customers as they reach ports.

Learn More

Services

We provide comprehensive propeller care, including inspection, cleaning, and polishing — all performed by our advanced underwater robots. Our solutions are designed to maximize fuel efficiency, reduce downtime, and improve vessel performance without the need for human divers.

Read More

Our Technology

Our robots combine precision engineering, advanced sensors, and real-time monitoring to deliver unmatched propeller maintenance. With high-definition cameras and adaptive polishing tools, we ensure consistent, high-quality results in all operating conditions.

Read More