JAG (JA-Gastechnology) is a company that supplies and installs gas supply systems with components designed for exhaust gas measuring. It offers gas generators, calibration gas systems, RDE-PEMS cylinder trolleys for mobile span gas measurements, synthesis gas reactors, catalysator aging systems, and related software solutions. In addition, the company focuses on green hydrogen refueling stations, hydrogen testing facilities, end-of-line leakage test benches, prototype hydrogen tank systems, mobile tank storage systems, and gas management and maintenance services.