Buckingham Manufacturing: products that are made for the professional climbing trade.   Thousands of standard items from climbing equipment, a wide array of fiberglass and canvas products and variety of fall protection products and rescue equipment.
Huskie offers the finest  selection of hydraulic and battery operated  cutting and crimping tools for the electric utility industry.
PIAB offers a Dynamometer that is both accurate and user friendly, for measuring tension forces in cables and ropes.  PIAB also offers a rope tensioner for measuring the tension on guy wires or stationary ropes and cables.
SensorLink manufactures a full line of live line meters for measuring voltage, amps, and power quality and recorders for events over time.