Underwater hydrophone with high visibility communication cable. Produced by Co.l.Mar. Italia

Underwater
acoustic systems

We provide a wide range of underwater acoustic systems, for i.e. ultra low noise hydrophones, which are suitable both for oceanographic research and environmental monitoring.

underwater pipeline. Image used for information about subsea leak detection by Co.l.Mar. Italia

Subsea leak
detection

Our mission is to provide the most effective leak detection systems and the most efficient leak detection service for the Oil & Gas offshore industry.

Image of a Co.l.mar. Italia worker wearing safety helmet

Custom systems
& services

We design and manufacture acoustic systems according to our customer needs: from a simple underwater hydrophone to multi channels arrays, complete of telemetry and processing units.

archeologica survey 2 copy 2

Geophysical
Surveys

We design innovative solutions to study the seafloor, the coast and inland waters with geophysical and morphology surveys.

Subsea monitoring buoy produced by Co.l.Mar. Italia

Noise monitoring
& assessment

Thanks to our underwater sound recording equipment, we have developed our proprietary hardware and software for the acquisition and processing of the different data.

Co.l.Mar Italia hydrophone technology

Colmar Italia: Experts in Hydrophones, Projectors, and Underwater Acoustics

For over forty years, Colmar Italia has specialized in underwater acoustics, offering advanced solutions in the design and production of hydrophones, underwater projectors, and acoustic transducers. Our acoustic systems are widely used in both civil applications—such as oceanographic research, environmental monitoring, and geophysical surveys—and military applications, including active sonar systems, passive acoustic sensors, and underwater antennas.

Colmar is also at the forefront of subsea leak detection for offshore oil and gas pipelines through our patented ALDⓇ technology, certified according to DNV standards. Our services are trusted by major oil companies worldwide.

Our headquarters houses Italy’s largest indoor acoustic testing pool (11m x 14m x 8m), purpose-built for hydrophone calibration, acoustic measurements, and underwater equipment testing.

Innovators in Underwater Acoustic Systems
Hydrophones, Projectors & Sonar Solutions for Civil and Military Use

Patented ALD® Technology for Subsea Leak Detection
Expert Coastal & Underwater Acoustic Surveys

European Regulation PE 86/2023 – Advanced Methane Emission Detection Services