Air Conditioning Contractors of America
ACCA is a group of over 4,000 air conditioning contractors who work together to improve our industry, promote good practices, and keep homes and buildings safe, clean and comfortable.

 Associated Builders and Contractors (ABC)
is a national association with 77 chapters representing 25,000 merit shop construction and construction-related firms with two million employees. ABC's membership represents all specialties within the U.S. construction industry and is comprised primarily of firms that perform work in the industrial and commercial sectors of the industry.

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 American Rental Association
The association evaluates progress on an ongoing basis and is proactive in adjusting the goals and strategies, when needed, to avoid roadblocks and achieve success for our stakeholders

Engineered Systems
Each monthly magazine is written in technically sound language, yet retains a non-theoretical application-oriented approach to the commercial/industrial/institutional HVACR markets. ES examines the latest changes in the design, specification, maintenance and management of non-residential HVACR systems and components. ES readership — 50,200 subscribers in all —is 100% HVACR and related mechanical systems engineering professionals.

BOMA International
Primary source of information on building management and operations, development, leasing, building operating costs, energy consumption patterns, local and national building codes, legislation, occupancy statistics.

ASHRAE
founded in 1894, is an international organization of 51,000 persons. ASHRAE fulfills its mission of advancing heating, ventilation, air conditioning and refrigeration to serve humanity and promote a sustainable world through research, standards writing, publishing and continuing education. 

Contracting Business.com
The leading business-to-business magazine for commercial, residential, and industrial contractors in the heating, ventilation, air conditioning and refrigeration industries.

ThomasNet
An industrial search engine that provides one source for finding the exact product, service, or supplier –quickly and efficiently. ThomasNet provides direct access to the detailed information needed to make a purchasing or specifying decision.