Maitz Home Services is listed as an essential business and are OPEN. They take extraordinary precautions to assure the safety of the employees and the clients.

MSCA is a renowned organization for HVACR contractors, providing education, marketing, and labor/management services to assure its contractor members deliver quality performance, value and expertise for all building system needs.

MJM Associates is a multi-line field sales and marketing agency representing quality HVAC/R manufacturers throughout the Rocky Mountain States.

NATE is a nonprofit certification organization for heating, ventilation, air conditioning and refrigeration (HVACR) technicians. They provide service and installation certifications in: air conditioning, air distribution, air-to-air heat pumps, gas furnaces, oil furnaces, hydronics gas, hydronics oil, light commercial refrigeration, commercial refrigeration, ground source heat pump loop installer, and HVAC efficiency analyst.

The National Board of Boiler and Pressure Vessel Inspectors was created in 1919 to promote greater safety to life and property through uniformity in the construction, installation, repair, maintenance, and inspection of pressure equipment.

National Center for Construction Education and Research (NCCER) is a not-for-profit education foundation created in 1996, as The National Center for Construction Education and Research. NCCER develops standardized construction and maintenance curriculum and assessments with portable credentials.

An ANSI-accredited Standards Developing Organization, the National Electrical Manufacturers Association (NEMA) gives members a competitive edge in today's rapidly changing marketplace by expanding market opportunities, acquiring exclusive business intelligence, removing market barriers, building supply chain connections, and harnessing innovation.

The Occupational Safety and Health Act of 1970 established NIOSH as a research agency focused on the study of worker safety and health, and empowering employers and workers to create safe and healthy workplaces. NIOSH is part of the U.S. Centers for Disease Control and Prevention, in the U.S. Department of Health and Human Services. It has the mandate to assure “every man and woman in the Nation is safe and in healthy working conditions.

The National Institute of Standards and Technology (NIST) was founded in 1901 and is now part of the U.S. Department of Commerce. NIST measurements support the smallest of technologies to the largest and most complex of human-made creations, ranging from nano-scale devices so tiny that tens of thousands can fit on the end of a single human hair up to earthquake-resistant skyscrapers and global communication networks.

The Norman Economic Development Coalition is dedicated to expanding the economic base of the Norman community, enhancing the earning opportunities of area residents by retaining and expanding existing businesses and industries, as well as attracting desirable new employers that are consistent with Norman's high quality of life.

Norman S. Wright provides customers with exceptional systems knowledge to meet all project requirements. They represent HVAC manufacturers worldwide, and their product lines support the latest energy, sustainability and comfort standards.

The North American Electric Reliability Corporation (NERC) is a not-for-profit international regulatory authority whose mission is to assure the reliability and security of the bulk power system in North America. NERC develops and enforces Reliability Standards; annually assesses seasonal and long‐term reliability; monitors the bulk power system through system awareness; and educates, trains, and certifies industry personnel.

With the Occupational Safety and Health Act of 1970, Congress created the Occupational Safety and Health Administration (OSHA) to ensure safe and healthful working conditions for workers by setting and enforcing standards and by providing training, outreach, education and assistance. The OSH Act covers most private sector employers and their workers, in addition to some public sector employers and workers in the 50 states and certain territories.

OklahomaGroup offers premier sales representation to all sectors of the HVAC and Refrigeration markets throughout the state of Oklahoma. Account Managers are dedicated to customer's needs and are supported by market and sales specialists.

OMNIA Partners, Public Sector is the cooperative purchasing organization that is driving excellence in public sector procurement for K–12 schools and districts, state and local governments, colleges and universities and nonprofits. OMNIA Partners offers the most robust portfolio of high-quality cooperative contracts in the public procurement space.

The Perfect Technician Academy is a school for Heating, Ventilation, and Air Conditioning (HVAC), created out of the need for a fast-track training program that could develop students ready to perform at high levels entering the skilled trades industry. They are committed to training and preparing heating, ventilation and air conditioning (HVAC) technicians for successful careers.

Reacond Associates is a company that works towards selling and partnering with huge HVAC brands and supports the success of their customers and manufacturers.

Rhodes and Stafford is a company that serves as a representative of companies like Diversitech, Southwark Metals, Berry Global, J. P. Lamborn, Uni-Weld, Hardcast, Glasfloss Industries, Honeywell Genesis Cable, Truaire, Soler&Palau, Fujitsu, JB Ind., Builder's Best, Pro1, Trion.

Sales ​​Engineers Inc. is a manufacturers' representative selling to the heating, plumbing and specialty refrigeration markets. Their emphasis is on distributor oriented business with a contractor/dealer focus. They represent the following manufacturers: Purolator, Broan-Nutone, Gastite, Nortek Global HVAC, First Company, Lenox, Hilmor, Shurtape, and Thermaflex.

Mfrs. reps. covering six New England states and calling on hydronic, HVAC, burner supply and plumbing/heating wholesale distributors for residential and commercial applications.

Sandia Group, Inc. offers premier sales representation to all sectors of the HVAC and Refrigeration markets throughout the state of New Mexico.

Shore Distributors, Inc. are wholesale distributors of HVAC and plumbing supplies across Del-Mar-Va. They have training programs and product seminars too.

Shupe, Carboni & Associates specializes in the introduction and promotion of selected quality products to HVAC wholesalers in Georgia, Alabama, Mississippi, Tennessee, Kentucky, and Florida. They represent ADP, Atco Flex, Nashua/Polyken Tape, RectorSeal, MagicPak(Allied Air), TRUaire, Glasfloss, Honeywell, LG Electronics, Hardcast, Soler&Palau, Tjernlund, Williams, A-Gas Refrigerant, General Filters, Milwaukee Tool, NAVAC, Cerro.

The Society for Public Health Education (SOPHE) is a nonprofit, international professional association with a diverse membership of health education professionals and students. The organization promotes healthy behaviors, healthy communities, and healthy environments through its membership, its network of local chapters, and its numerous partnerships with other organizations.

Stamberger-Sender Assoc. Inc. covers the US States of New England, New York, Pennsylvania, New Jersey, Maryland, Delaware, Virginia and Ohio since 1947. They specialize in marketing portfolio to wholesale distributors, engineers, OEMs and installing contractors.

Steinmetz & Associates Inc. renders services to the air conditioning, refrigeration, appliance parts industry and automotive AC.

Sunbelt Marketing, Inc serves as a manufacturers’ representative/master distributor of plumbing, piping and HVAC/R products to traditional wholesalers. Sunbelt uses technical expertise, extensive sales coverage, and superior logistics to exceed the expectations of wholesalers and manufacturers.

Synergy Solution Group is a network of peers who share the same vision, drive, and passion for the commercial HVAC industry.

The Texas Air Conditioning Contractors Association is a non-profit trade association for the heating, ventilation, air conditioning and refrigeration contractors in Texas, USA. These contractors design, install, maintain and service HVAC/R systems, guided by principals of honesty and integrity. TACCA is committed to improving the industry by helping members succeed.

The New Flat Rate creates customized menu pricing for services, repairs, and new equipment installations for several different industries including HVAC, Electrical, and Plumbing.