Orbital Engine technology (Opti Max) (Ausssie design) was bought by Mercury Marine.
Fitch (E-Tec) technology (German design ) was bought by OMC-Evinrude/Johnson.
Polaris watercraft HAD Fitch injection on them. All went south when OMC went bankrupt and BRP bought OMC - outboard stuff. I/O stuff went to Volvo Penta.