Welcome Oxzo: Powering Productivity and Performance in Global Aquaculture

Feeding a growing population will require producing more protein with fewer resources. Aquaculture, the world’s fastest-growing source of animal protein, is expected to supply over 60% of seafood consumed globally within the next decade. But as production expands, fish farmers are under pressure to raise output efficiently, reduce biological risk, and maintain profitability amid tightening regulations and shifting environmental conditions.

At the center of this challenge is oxygen. For modern fish farmers, oxygenation is a direct driver of yield and operating margin. Fish need oxygen to grow, convert feed into energy, and stay healthy. When oxygen levels fall, fish become stressed, eat less, and become more vulnerable to disease, which slows growth and reduces survival rates. 

Rising ocean temperatures, algae blooms, and eutrophication have made oxygen scarcity an increasingly frequent and expensive problem. Limited oxygen supply is now a major constraint on productivity and a key cost driver for producers. Despite being one of the most critical inputs in aquaculture, oxygen management remains one of the least optimized.

That’s why S2G has invested in Oxzo, a global leader in oxygenation technologies purpose-built for aquaculture. The company is transforming how farms generate, manage, and optimize oxygen supply to unlock measurable gains in output, cost efficiency, and fish health across production cycles.

Redefining Oxygenation for Modern Aquaculture

Founded in 2004 and headquartered in southern Chile, Oxzo develops and operates advanced oxygenation and aeration systems that enhance fish welfare and production efficiency. Its patented Oxymar® platform, a floating oxygen generation system, produces oxygen and air directly at sea, eliminating transport costs and improving oxygen stability in net pens.

The company complements Oxymar with mobile and modular solutions such as Oxymovil, a containerized onshore system, and seabed diffusors that optimize water quality and site recovery. These technologies help farmers stabilize oxygen levels, reduce mortality, and improve feed conversion ratios while extending site productivity and equipment uptime.

Traditional oxygen supply systems rely on trucked-in liquid oxygen, which is costly, logistically constrained, and ill-suited to dynamic marine environments. Oxzo’s model reimagines this approach with onsite generation that delivers reliability, precision, and real-time control, enabling farms to respond immediately to biological and environmental conditions that affect fish performance.

In Chile, Oxzo’s solutions have demonstrated 5 – 10% increases in biomass, up to 5% reductions in cost, and over 24% lower mortality according to independent data. In Norway, the company’s systems are helping address the industry’s leading health challenge — sea lice — by reducing fish stress and mortality. And in Canada, Oxzo’s technologies are enabling producers to adapt to new environmental standards while maintaining productivity and sustainability.

Building the Infrastructure for High-Performance Aquaculture

Backed by Chilean industrial groups Fiordo Austral and Altis, Oxzo has established itself as a trusted partner to leading aquaculture companies. Its recurring revenue model, driven primarily by leased systems under multi-year contracts, delivers predictable income and aligns incentives with customer success.

S2G’s investment will support Oxzo’s international expansion and continued product development as it scales into key aquaculture markets across Europe and North America. The partnership aligns with S2G’s Oceans investment strategy to advance technologies that strengthen food security, improve ecosystem resilience, and accelerate the transition toward a more sustainable blue economy.

With strong customer alignment, durable unit economics, and clear paths to international expansion, S2G believes Oxzo is poised to redefine oxygenation as both a biological and financial lever for the next generation of aquaculture.

Image source: Oxzo