Continental Hydraulics manufactures hydraulic proportional control, modular stack and directional control valves. The hydraulic proportional control valves follow standard NFPA-ISO mounting patterns, and offer five pressure output control ranges, from 0 to 4,500 psi, making them compatible with many material handling and machine tool systems.

Eaton Hydraulics provides a range of hydraulic valves, including direct operated Vickers inline, right angle, and manifold mounted check valves for one-way flow in hydraulic circuits, and flow control valves that cause variable pressure drops in fluid passages in order to reduce flow. They also have recently added Vickers KB Proportional Directional Valves, which are IP65 and 67 rated, and tolerate pressures up to 5,000 psi and flows up to 185 US GPM. Other valve choices include directional, flange, pressure control, proportional flow, and proportional pressure valves.

FORCE America sells five valve models. The Add-A-Fold 2010, Add-A-Stack 4020, and Add-A-Stack 2512 valves are all integrated mult-function valves designed to electronically control both cylinders and motors, while the Add-a-Fold 4520 valve is meant to protect against corrosion. Finally, the SCE Spin-A-Veyer valve is a compact electro-proportional control valve designed for spreader applications.

MICO manufactures hydaulic valves for automotive applications. The electrohydraulic brake valve, EBV-S12 Series, is a closed-center, full-power valve that modulates output pressures up to 2,900 psi. The in-line check valve is a non-adjustable valve that allows free flow of hydraulic system fluid in one direction, while maintaining residual fluid pressure from the opposing side.