What is 37 Echo?

37 Echo is a research and development company building ultrasonic and telemetry technology for marine efficiency, safety and search and rescue.

What started in early 2026 as a simple offshore search and rescue beacon, designed to operate beyond traditional satellite & mobile coverage, has quickly developed into something much more. Today, we’re building a broader platform of marine technologies that combine ultrasonic sensing, telemetry and hybrid communication systems to improve how vessels operate, communicate and respond offshore.