Autoclave Engineers manufactures a variety of needle valves including low and medium pressure needle valves with a non-rotating rising stem deign and working pressures up to 2000 psi. These needle valves come in tube size ranges of 1/4" up to 1" and feature 316s stainless steel construction and an operating temperature range of 0 - 650 degrees Fahrenheit.

Specialty Mfg. Co is a manufacturer of a wide selection of valve products including brass and plastic needle valves in a variety of sizes. The NV series of compact needle valves  offer 3 turn adjustment in the needle. A 6.5 turn adjustment is also offered.

Kerotest M&M manufactures needle and gauge valves in various configurations for a broad range of applications. products include hard seat stainless steel needle valves, soft seat standard port needle valves, soft seat full port needle valves, bleed terminal valves and needle valves with integral bonnets.

NET motion is an authorized supplier for Applied Materials, Intel and Seagate and provides a variety of needle valves in various sizes for a wide range of industrial applications.

NoShok manufactures a variety of needle and manifold valves including mini, multiport, hard seat, soft seat, block and bleed, bleed and 2-valve block and bleed needle valves and 2-valve, 3-valve and 5-valve manifold valves for a wide range of applications.