
Nortek
Provides acoustic Doppler current profilers, velocity sensors, and marine instrumentation used in oceanographic and subsea surveying.
Nortek is an ocean technology company that develops, produces, distributes, and services oceanographic instruments and underwater navigation systems. Its core offering centres on reliable sensors for measuring motion in marine environments, especially Acoustic Doppler Current Profilers (ADCPs) and Doppler Velocity Logs (DVLs). Those instruments use the Doppler effect to measure currents, waves, turbulence, and related oceanographic processes, while supporting subsea navigation for underwater vehicles. The technology therefore serves both measurement and navigation needs across marine settings, with products used in oceanography and subsea navigation applications. The business scope spans several market areas. For marine science and research, Nortek supplies equipment that provides data trusted by oceanographers, marine scientists, and government researchers. For marine autonomy, its DVLs support navigation for uncrewed and crewed subsea and surface vehicles operating in GPS-denied environments. In defense and security, its DVLs deliver accurate subsea navigation for AUVs, ROVs, USVs, and diver systems on critical missions. It serves operations and energy customers that need metocean information for offshore work, coastal engineering customers that need sea-state knowledge for protection and safe operations, and marine resources users such as fisheries, ocean ecosystems, and kelp farms. The product range covers multiple instrument families for different depths and applications, with variants for current profiling, wave measurements, biomass measurements, and navigation. Between the current profilers and the velocity logs, the same acoustic Doppler technology serves both the scientist measuring an ocean process and the operator navigating a vehicle through it. The company offers vessel-mounted and surface navigation products, as well as software, firmware, spare parts, a webshop, support resources, and a knowledge centre. A distinctive aspect of the business is the combination of robust instruments, advanced software, and support services, along with specialised designs such as flush-mounting for surface vessels and sensor hubs that enable vehicle control and navigation. The company aims throughout to provide accurate, high-performance measurements and reliable navigation aids in challenging marine conditions.