Valves:

QCI: http://www.qcivalves.com 2-5 way Rotor Valves

Omal: http://www.omal.com Ball, Angle, Axial, and Butterfly Valves

Crane: http://www.cranevalve.com/index.htm Resilient Seated Butterfly Valves.

Saunders:
http://www.saundersvalves.com/site/index.php
Industrial Diaphragm Valves

Xomox: http://www.xomox.com/Xomox/htdocs/index.html Plug, Ball, Butterfly, Diaphragm, and teflon Lined Valves

Valves & Automation:

Assured Automation: http://assuredautomation.com/

Flow Meters:

GPI (Great Plains Industries) http://www.greatplainsindustries.com/ Turbine and Positive Displacement Flow Meters

Universal Flow Monitors: http://www.flowmeters.com/ Variable Area, Mass, and Vortex Flow Meters

Kobold: http://www.koboldusa.com/ Flow Switches; Variable Area, Paddle Wheel, Turbine, Mag, DP, Positive Displacement, and Vortex Flow Meters; Pressure Gauges, Switches, and Transmitters; Temperature Switches and Transmitters; Level Switches; Ultrasonic, Float, Capacitive Level Transmitters

Krohne: http://www.krohne-mar.com/Home.10963.0.html Variable Area, Coriolis, Mag, and Ultrasonic Flow Meters; Point Level and Radar Level Controls

Actuators:

El-O-Matic: http://www.emersonprocess.com/valveautomation/El-O-Matic/metric/uk/index.html Pneumatic and Electric Actuators, Limit switches, Manual Overrides and Positioners

Omal: http://www.omal.com Pneumatic and Electric Actuators

Koei: http://www.uskoei.com/ Electric Actuators

Bettis: http://www.emersonprocess.com/valveautomation/Bettis/ Electric Actuators

Xomox: http://www.xomox.com/Xomox/htdocs/index.html Pnuematic Actuators

Accessories:

VERSA: http://www.versa-valves.com/ Solenoid Valves

ASCO: http://www.ascovalve.com/ Solenoid Valves

PMV: http://www.pmv.nu/start.aspx Valve Positioners, pneumatic and electro-pneumatic

Stonel: http://www.stonel.com/ Valves Limit Switches and Fieldbus Controls