Control and Instruments
| Donley Air Conditioning Service and Repair Donley Service air conditioning, plumbing, heating, solar water heaters for residential /commercial spaces serving the greater phoenix since 1976. Reliable, experienced plumbing contractors for all your air conditioning service and repair needs. | |
| Alerton Technologies, Inc. - manufactures building automation controls for energy management and HVAC. | |
| Chalmor Limited - specialises in heating and lighting control products for industry and commerce. | |
| Control Masters Inc. - offering environmental and security access controls that let you maintain control of your buildings. | |
| EnergyControl Systems International Product information about Power Quality issues and products | |
| Enviromation, Inc. - designer and manufacturer of environmental control systems for military, municipal, industrial, and commercial markets. | |
| Heating and Air Conditioning Service Come here for all your Air Conditioning, Heating, Questions, Service and Sales | |
| International Energy Group, Inc. - a wireless controls manufacturer of powerline carrier, radio frequency and infra-red products with products for electrical energy savings in industrial, commercial and hotel/motel. | |
| Knickerbocker Electrical Equipment Corporation - distributor of electrical control products for HVAC, general contractors and industrial applications. | |
| Xenergy Communications, Inc. - manufacturer of hardware and software for inexpensive and simple automation of HVAC systems. software is compatable with many operating systems including Microsoft Windows. | |