GNC Marine is committed to providing the marine and offshore industries with safe, effective, and environmentally responsible cleaning and wastewater treatment solutions.
Headquartered in Denmark, with production facilities in the United Kingdom and Poland, we deliver world-class products and dedicated customer support to fleets, shipyards, and vessel operators worldwide.
Established in 2016, GNC Marine combines over 25 years of expertise in chemistry, biology, and marine cleaning technologies.
Our accumulated knowledge and hands-on experience in industrial microbiology and microbial product development enable us to recognise the practical challenges faced by vessel operators and engineers.
By focusing on innovation, performance, and compliance, we ensure that every product we supply helps our clients operate cleaner, safer, and more efficiently.

At GNC Marine, we are dedicated to providing sustainable solutions without compromising performance. By formulating our own cleaning and maintenance products, and working closely with leading scientific experts, we ensure our products incorporate the latest innovations in bioscience and chemistry. This allows us to meet the ever-changing cleaning and waste treatment demands of the marine industry.
Our team and partners bring over 25 years of expertise in chemical, biological, and cleaning equipment sectors. We have a proven history of successful collaboration with key technology providers, distributors, and OEMs. This extensive network enables us to deliver our products efficiently to major international ports, ensuring you get the solutions you need, right when you need them.
With a focus on sustainability, advanced science, and a global support network, GNC Marine offers a full range of solutions that deliver exceptional value. We look forward to partnering with you to optimize performance across all your marine operations.
Continuous product innovation
Compliance with international marine and environmental standards
Reliable global logistics and on-time deliveries
Dedicated technical and customer support
We take pride in long-term partnerships with shipowners, fleet managers, and distributors who share our focus on quality, safety, and sustainability.
At GNC Marine, we develop and distribute our own range of biological and chemical products, offering solutions that span from concentrated formulas to ready-to-use options. Our product line is designed to meet the diverse needs of the marine industry, ensuring effective cleaning and maintenance solutions for any operation.
Our clients include distributors, trading companies, procurement and facilities management teams, chandlers, and shipping companies of all sizes. We serve every corner of the industry with tailored solutions that deliver outstanding performance.
With extensive experience in real-world marine applications, our team understands the unique challenges faced by the industry. We design our products to address these needs directly, offering practical, effective solutions that work in the field.
GNC Marine is committed to delivering innovative, high-performance products while maintaining a strong focus on sustainability, making us the trusted partner for your marine cleaning and maintenance needs.
Expertise and knowledge capital together with strategic partnerships are key to our business. We have in-house expertise in the industry, supported by an extensive network of partners and associates allowing us to have a global reach.
We access a broad range of resources and expertise in specialized areas that enables us to exploit new developments in whole cell bioscience and modern chemistry. We also outsource many key functions such as R&D, raw materials sourcing, manufacturing and distribution. This reduces costs, reducing development lead times, reduces product delivery time and ultimately offers a competitive advantage to our clients.
Our accumulated knowledge and years of practical experience of industrial microbiology and the microbial products market enables us to recognise that despite the fact that these products have played a role in the marine industry for many years, very little change or implementation of the latest developments has taken place.
Not all the microorganisms used in marine bio-products are the same, nor do what they were proven to do in a laboratory, and in many cases do nothing at all. We know how to source the best available strains that are suited to the application and deliver a solution or product to make them work.
We source our micro-organisms only from the best industrial fermentation companies. New fermentation and preservation techniques are being developed to enable alternative high performance bacteria to be incorporated into the next generation of microbial products. GNC Marine is at the forefront of these developments, working closely with our SSF-based fermentation partner.
A detailed understanding of both microbial physiology and biochemistry coupled to complimentary modern chemistry is required to get the best ship-board performance from a cleaning and maintenance product. GNC Marine can apply its knowledge of liquid, powder, solids product formulation to manufacture a broad range of high performance products in stable form for worldwide distribution and to meet appropriate regulatory requirements.
Not all environmental clean-up applications require inclusion of micro-organisms. Smart, modern chemistry based on the latest developments in raw materials are reaching the market that with careful formulation and combined with the correct application equipment are all that is required to achieve satisfactory low cost results. Many emerging raw materials are ‘bio-based’ giving excellent functional performance with equally excellent environmental and health and safety characteristics. We use bio-based as well as the best conventional chemistries to formulate our chemical product ranges.
All of our blending partners are ISO9001 and ISO14001 certified. Our packaging partner is GMP certified. We manufacture at locations in the UK and in Poland. We ship directly from factory or from our central warehouse in Denmark.

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