ReynKo

ReynKo Inc. is a deep-tech company applying a breakthrough mathematical framework to the longstanding unsolved problem of turbulent fluid mechanics. Founded in 2022 by Justin Beroz — who holds dual PhDs from MIT in physics and mechanical engineering — ReynKo has derived an exact theoretical solution to the Navier-Stokes equations for turbulent flows, replacing the semi-empirical approximations that have limited computational fluid dynamics (CFD) for decades. The new framework correctly predicts experimental data and can be integrated as a modular plug-in into existing commercial CFD software. Target applications span aerospace, HVAC, pipeline transport, oil and gas, weather forecasting, hydroelectric power, and medical devices. ReynKo's approach enables faster design exploration in software (reducing the need for physical prototypes) and lays the groundwork for turbulence suppression hardware and control systems. The company is headquartered in New York City and is backed by investors including Third Sphere.