Haight Pump manufactures internal, external, custom, and stainless and bronze gear pumps for OEM and process markets. The internal and external gear pumps feature capacity ranging from 1 GPM to 240 GPM, and pump speeds up to 1740 RPM. Products are constructed of bronze, ductile iron, stainless steel, or gray iron.

Micropump Inc. manufactures external gear pumps and micro annular gear pump. The external gear pumps are magnetically-driven, with flow rates up to 9.5 mL/min to 42 L/min and pressures up to 1500 psi. The micro annular gear pumps feature a compact design, a flow rate range of 0.3 to 288 mL/min, and differential pressure up to 1160 psi.

Eaton Hydraulics manufactures aluminum external gear pumps and hydraulic gear pumps. The aluminum gear pumps can feature a wide range of displacements from 0.40 in3/rev to 3.37 in3/rev, with maximum pressure up to 3500 psi and maximum speed up to 3600 rpm. The gear pumps are used for a number of applications including agriculture tractors & harvesters, turf care, skid steer loaders, lift trucks,  fan drive systems, charge pump applications, steering circuits,  industrial, and auxiliary work circuits.

Springer Pumps distributes gear pumps manufactured by BladeMaster, Liquiflo, and Rotan. The BladeMaster gear pumps are engineered for high volume transfer of light to heavy viscous products, while the Rotan internal gear pumps are used for pumping chemicals, oils, high viscosity liquids, fuel oil, and corrosive liquids. The Liquiflo rotary gear pumps handle flows from 0.1 to 55 gpm and up to 350 psi of pressure.