Mastergear Valve Actuators
MasterGear was founded in 1962 as a manufacturer of manual valve actuators, Mastergear has become the industry standard in manual valve actuators. Mastergear Worldwide serves valve makers all over the world from four international manufacturing facilities. MasterGear products are used extensively in oil, gas, water distribution and treatment, chemical processing and many other applications.
http://www.mastergear.ca

Morin Actuator
Tyco valves and controls, largest valves, actuators and controls manufacturer in the world, selling over 40 of the worlds best known flow control products.
http://www.morinact.com

Flowbus Corporation
Manufacturer of pneumatic heavy duty actuators for quarter-turn valves and related products. Based in Korea.
http://www.flowbus.com/

PMP Precision Co., Ltd.
Manufactures valves, ball valves, quarter-turn actuators, stainless steel investment cast products.
http://www.pmp.com.tw/

Schiebel - Electric Actuators
Develops and manufactures electric actuators since 1958. Product range including all kind of actuators and controls as well as custom-made solutions.
http://www.schiebel.com/actuators/

Prime Valves
Wholesales quarter-turn ball pattern supply stops, washing machine, ice maker, full port ball, AGA/CGA gas, check and hose bibb valves.
http://www.primevalves.com/

The Official Quarter Pony e-mail Group
Quarterpony: A list for anyone interested in Quarter Ponies (registered or unregistered) with information about the International Quarter Po
http://pets.groups.yahoo.com/group/Quarterpony/

QTRCO, Inc.
QTRCO is a manufacturer of 1/4-turn, pneumatic valve actuators with headquarters located in Tomball, Texas. The primary actuator lines have been 316 stainless steel with torques ranging from 300 pound-inches up to 15,000 pound-inches. With the introduction of the Flat Yoke(tm)series of actuator, the planned torque range by the end of 2009 is 2.2 million pound-inches in affordable ductile iron and stainess steel.
http://www.qtrco.com

Frank Ellis Beefmasters and Quarter Horses
Anytime, anywhere, EarthLink connects people to the power and possibilities of the Internet. Connect to the Internet with High Speed, DSL, Cable, Satellite, Voice, trueVoice, Samsung Wireless, Dial-up.
http://www.mindspring.com/~ffellis/

Mmac Actuators
Our Actuators use the major components of hydraulic systems in a stand alone modular linear actuator. Suitable where high force-density and long operating life is required.
http://www.mmacactuators.com