United States, Caribbean, Mexico & Canada
North American Hull Optimization
North American Hull Optimization (NAHO). The only regulatory-compliant system that legally cleans and optimizes hulls in-water, at-port, across North America — saving operators millions while cutting CO2 emissions.
Regulatory Compliance
The only system capable of 99% micro & 95% macro fouling capture — meeting and exceeding EPA NPDES requirements by a wide margin with the highest percentage of capture rates in the world.
Peak Performance
Keep hulls completely fouling-free and optimized continuously at-port, eliminating days out of service and maintaining near-peak hydrodynamic efficiency.
Environmental Impact
At full subscription, NAHO generates per hull CO₂ savings equivalent to taking 1100 cars off the road for a year.
99% / 95%
Micro & Macro Fouling Capture
80%+
Faster Service Time
1100
Cars per Hull Annual CO₂ Savings
The Vacu‑Cart & Reclaim System
Proven technology. Human precision.
The NAHO Vacu-Cart & Reclaim system offers the definitive solution to biofouling with an in-water/at-port cleaning system that captures 99% of micro and 95% of macro fouling. The system cleans the entire hull — curved surfaces and niches included — while divers supervise the process for consistently superior results.
The Blue Economy
The Blue Economy encompasses the sustainable use of ocean resources for economic growth, improved livelihoods, and ocean ecosystem health. As the backbone of global trade, maritime shipping must evolve to meet these sustainability goals. NAHO is at the forefront of this transformation, delivering regulatory-compliant, in-water/at-port hull optimization that dramatically cuts fuel consumption and CO2 emissions while preventing the spread of invasive species. By keeping vessels operating at peak hydrodynamic efficiency, NAHO helps shipping companies align profitability with environmental stewardship.
Maritime Decarbonization
Maritime decarbonization is one of the hardest fronts in the global climate challenge: ships move nearly 90% of world trade, yet even modest biofouling on a hull can raise fuel use and emissions by double digits. The most immediate, proven lever is also the simplest one — keep hulls clean. NAHO's Hull-Optimization-as-a-Service removes the operational and regulatory friction that has kept vessels from being cleaned regularly, turning hull maintenance from an occasional cost into a continuous emissions-reduction program. The result is lower carbon intensity per nautical mile, cleaner water, and a shipping industry that can meet tomorrow's standards without sacrificing today's performance.
NAHO - advancing a cleaner, more resilient Blue Economy
for North America and the world.
Explore the possibilities with us.
Starting in the San Francisco Bay, NAHO is building the future of in-water hull optimization across North America.