Millions of
fish gender-sorted

with AI and ultrasound

Sorting by gender increases profits

Our Machine Solutions

Greenfox Marine delivers the world’s first automated gender sorting machine for farmed fish.

The next generation of machines are ready for the market, fully integrable with vaccine machines and with significantly increased sorting speed.

Discover our solutions

Greenfox Marine Wins the Innovation Award 2025

The win is an important recognition of the technology we have developed for automatic gender-sorting and comprehensive health screening of smolt, based on medical ultrasound and artificial intelligence (AI).

The technology integrates seamlessly into existing vaccination lines, enabling sorting by both sex and a range of health parameters — all in one efficient process. We are pleased that the award highlights the benefits to the aquaculture industry, including reduced mortality, improved fish welfare, faster and more consistent growth, optimized production management, and increased profitability.

Read more about our technology and the award at aquanor.no

Freedom to operate

Greenfox Marine ensures you have full freedom to operate when using our services and products.

We respect third-party rights by conducting thorough assessments to prevent infringement of patents and other intellectual property rights.

GreenFox Marine AS is not involved in any litigation regarding infringement of patents or other intellectual property rights.

In 2024, we secured approval of our Norwegian patent for automated gender sorting of farmed fish.

Read about our patent (nor)

Compatible with all vaccination machines on the market

Our gender-sorting machines can be integrated with any vaccination machine on the market.

Compact and highly adaptable, the unit can be easily installed at any suitable point along the production line.

Suitable for Atlantic salmon, trout, and coho

The machine is particularly well-suited for sorting Atlantic salmon, trout, and coho. Fish weighing from 20 to 500 grams can be sorted with an accuracy rate of over 95 %.

Since the first sorting in 2022, we have processed millions of salmon — both in Norway and in international markets.

Gender sort fish based on internal and external health factors

As part of the sorting process, fish are scanned using high-resolution, medical-grade ultrasound.

A range of internal and external conditions are assessed, including gender, kidney calcification (nephrocalcinosis), heart deformities, and early sexual maturation.

Sorts from 5,000 to 40,000 fish per hour

With a capacity of 5,000 fish per hour per line — and the option to align up to eight lines — the system keeps pace with the fastest vaccination machines on the market.

Fish are sorted by sex and health. Any fish found unfit for production are automatically removed.

What the Industry Says About Greenfox Marine

The technology used in the sorting machine for broodstock is both fast and very accurate. This will save many operator hours and lead to us being able to gender-sort larger quantities than we do today. The accuracy of machine sorting also seems to be higher than with manual sorting.

Mona Rosta
Production Manager
Breeding operations and Smolt
AquaGen

Mowi is very interested in automated ultrasound based sex sorting of pre-smolts for improved utilization of broodstock licenses, and potentially improved performance and management of fish stocks in commercial production sites.

Matt Baranski
Genetics Manager
Mowi Genetics AS

Product Sheets, Research and Documentation

Fill out the form to download product sheets, research on gender-sorting, and results from trials that gender sort fish.

Go to download page

Meet Us at Trade Fairs, Conferences, and Seminars

Our goal is to offer you the best solution for gentle, fully automatic gender sorting of farmed fish. Therefore, we regularly participate in trade fairs, conferences, and seminars — both nationally and internationally.

If you’re attending as well, we would love to meet you! Schedule a presentation of our machine solution right now, or book a meeting to discuss your specific needs.