Manufacturer of Linear and Rotary Position Sensors.  Website 

Superior hazmat absorbents and spill control kits. Website 

Greer Hydraulics is now part of Parker Hannifin's Hydraulic Group. Greer's bladder accumulator line was the original bladder accumulator, now a major part of the Parker Accumulator product line.   Website 

Gresen is now part of Parker Hannifin's Hydraulic Group  Gresen manufactured a wide range of hydraulic motors, pumps, control valves, cylinders, filters and electronic controls for on- and off-highway vehicles.  Website