- ABC - Associated Builders and Contractors
- ACCA - Air Conditioning Contractors of America
- AFE- Association for Facility Engineering Engineers, Inc.
- ASHRAE - American Society of Heating, Refrigerating and Air Conditioning
- EPRI - Electric Power Research Institute
- IARW - International Association of Refrigeration Warehouses
- IIAR - International Institute of Ammonia Refrigeration
- IRC- Industrial Refrigeration Consortium
- MCAA - Mechanical Contractors Association of America
- RETA - Refrigerating Engineers & Technicans Association
- RSES - Refrigeration Service Engineers Society
- SMACNA - Sheet Metal and Air Conditioning Contractors' National Association
- U.S. DOE - EnergyNetwork -U.S. Department of Energy
- U.S. Patent - Classes - Engineering Group
- DOE Energy Efficiency & Renewable Energy Network
- EPA - The Environmental Protection Agency
- EPA - State Emergency Response Commission(SERC) Contact List
- OSHA - Federal - General Information
- SDS - Safety Data Sheets
- CCOHS - Canadian Centre for Occupational Health & Safety
Commercial Sites in alphabetical order
- CavCom Two-Way communication devices. - Talk through your ears technology
- Coil Manufacturer - Krack Coil Co.
- Colonial Industrial Refrigeration- Custom Built Refrigeration Systems
- Condenser Manufacturer - Evapco Condensers.
- Danfoss Manufacturer - Special Ammonia Valves and Regulators and other misc. parts
- Dual Temp Companies - Industrial Refrigeration Specialist
- FRICK- Compressors
- Gamma Graphics- Pipe and Vessel Inspection
- Gartner Refrigeration - Refrigeration Contractor
- Howden - Compressors and assorted equipment.
- Marking Services - Pipe Marking and Identification
- NH3Jobs - Industrial Maintenance Jobs
- Parker - Valves and assorted parts.
- Robur Corporation SERVEL . - Absorption Refrigeration gas fired air-cooled
- Shambaugh & Son - Construction & Engineering Services
- Vilter - Compressors and assorted equipment.
- United - Refrigeration Inc. Refrigeration Parts and supplies.