Neptune Robotics

Company Summary
Neptune Robotics is a global leader in robotic hull cleaning and inspection. Its magnetic remotely operated vehicles (ROVs) use cavitational waterjet technology to clean both above and below water lines, protecting vessel coatings and enhancing efficiency. Available via a Robotics-as-a-Service (RaaS) model, Neptune offers reliable, eco-friendly solutions across 61 ports.
The Problem
Ships suffer from biofouling—algae, barnacles, and marine growth—that increases fuel consumption and CO₂ emissions by up to 15%. Traditional diver-based cleaning is slow, often prohibited due to environmental risks, and requires vessels to dry dock, causing delays and high costs.
The Solution
Neptune Robotics deploys its cleaning robots directly to ships while they’re docked in port or anchored offshore. The system uses cavitational waterjets to remove biofouling without damaging hull coatings. Robots operate effectively even in murky water and strong currents. All data is shared in real time through a cloud dashboard, helping operators plan maintenance and cut fuel use by 9–18% annually.
Funding
In April 2022, Neptune Robotics raised $17.25M in a Series A led by Sequoia China, with participation from Matrix Partners China and SOSV/HAX. China continues to be the initial focus (based on proximity and the volume of container ships), with plans to grow to a larger footprint in Asia, followed by Europe and the U.S.