Wenkui manufactures hydraulic piston pumps in a variety of series and configurations. The A4V series of hydraulic piston pumps includes 40 to 155 cm3/r of displacement and 2000 to 3700 rpm. A10VSO series of variable piston pumps features swash plate design, work pressure up to 280 bar, axial and radial loading of drive shaft and SAE and ISO mounting flange.

AZ Hydraulic Engineering produces AZ-1 and AZ-2 series of air operated hydraulic piston pumps. The AZ-1 features a piston range from 0.250 to 1.625 inches. Various models in AZ-1 line includes 20 to 100 PSI range or 1.4 to 6.9 bars of pressure. AZ-2 hydraulic piston pump includes pistons of 0.312 to 1.437 inches in diameter and 20 to 100 PSI or 1.7 to 6.9 bar of pressure.

Metaris provides high quality hydraulic piston pumps. The Metaris MA10V0 open loop piston pumps feature rear and side port, thru drive auxiliary mounting flange, low noise level, pressure ratings up to 4000 psi, and a range of flow and pressure controls.

S.A.M. Hydraulik manufactures the H1C Series bent axis, axial piston hydraulic pumps with fixed displacement for operation in open circuit. They also build the SH11C Series axial piston hydraulic pumps. Each offers different displacement and flow range specs.

Continental Hydraulics produces pressure compensated axial piston pumps with variable displacement. Designs encompass hardened swash plate, balanced piston shoes, replaceable port and wear plate. Four pump control options permit the designer to choose the most efficient means to power hydraulic equipment. Pump capacities range from 6 to 29 at 1750 RPM and pressure compensation ranges from 200 to 2500 PSI of continuous duty and up to 4000 PSI of intermittent duty.

Atos produces a variety of piston pumps in their line of hydraulic pumps. The line of fixed displacement pumps includes radial piston pumps for high pressure, low noise level and long life. The line of variable displacement pumps includes axial piston pumps with hydraulic controls. The line of ATEX pumps includes piston pumps for for potentially explosive atmospheres.

Hydronic supplies an array of hydraulic pumps. Available pumps include air-driven hydraulic pumps, high fluid air driven, single acting, double acting, and high pressure pumps. Designs include internal valving, single acting cylinders, air operation, and manual release valve.

Yuken develops hydraulic piston pumps with multiple designs. The AR series features variable displacement single pumps with pressure compensator designs, including compact size, low noise level, and up to 16 MPa. The A series features variable displacement single, double, variable, and fixed double pumps with 98% volumetric efficiency, low noise level, and up to 28 MPa.  The AH series features variable displacement single, pressure compensator type pumps with port plate design, cradle support bearings, and up to 31 MPa.

Hydraulic.net engineers hydraulic piston pumps for companies such as Barnes, Vickers, Eaton and Piston. Product line includes new and rebuilt Dynes and MAT control variable piston pumps.

Hystar's product line includes gear, fixed displacement vane and variable displacement vane pumps with an adjustable pressure compensator and a maximum flow volume control. For higher pressure, Hystar offers a range of variable piston pumps with an adjustable pressure compensator and a maximum flow volume control.