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.

National Pump Company manufactures a complete line of vertical lineshaft turbine, submersible, and booster pumps for the agricultural, municipal, petroleum, and industrial-commercial markets. They are a major fluid pumping solutions provider in the global water and energy markets through collaboration and innovation.

Nature's Renewable Products provides a multi-fuel, biomass furnace utilizing a range of renewable fuel sources. Fuel feed rate is adjustable to accommodate the particular biomass fuel and the size of the space requiring heat. Thermostatically controlled and can be connected to ductwork.

Neal's Heating & Air is a family-owned company that services all types of residential and commercial comfort systems. It has continued to offer custom design layouts, installation, and service of all makes and models.

NearU is a technician and customer-centric provider of residential and light commercial HVAC services. The company is well-capitalized and seeks to grow organically and by acquiring or partnering with leading HVAC contractors.

Nederman is an environmental technology company and a global pioneer in industrial air filtration dedicated to capturing, measuring, controlling, and cleaning air to make industrial production more efficient, safe, and sustainable. Based on industry-pioneering products, solutions, and services in combination with an innovative IoT platform they deliver knowledge and facts needed to optimize performance and guarantee emissions compliance.

Neese-Jones Heating & Cooling is located in Alpharetta, Ga. Just 30 miles north of Atlanta. Concentrating solely on the repair, maintenance, and installation of air conditioning, heating, and also indoor air quality systems allows them to excel in the industry.

Trust Nelke Mechanical Heating & Cooling with any HVAC system and customers will never encounter a bunch of grouchy contractors just trying to make a buck. Their company is backed by over a decade of HVAC experience, and they’re the best at what they do. Committed to the comfort and safety of their customers, the company's mission is to provide superior, speedy, affordable, and responsive HVAC expertise.

Nelumbo is commercializing a new platform of structural materials. The company’s current focus is on developing improved heat exchangers for the HVAC market.

Network Thermostat started with an innovative approach for simple, cost-effective, on-site and remote-location control for the HVAC Industry. They provide HVAC Thermostats, WiFi Thermostats, Energy Savings, Ethernet Thermostats, Building Automation and many more.

California-based Newair Appliances is a manufacturer and distributor of luxury compact home appliances, including everything from beverage and wine coolers, ice makers, humidors, and portable heating and air conditioners.

Newby & Son Heating & Cooling Inc. is a licensed, bonded and insured firm committed to offering HVAC services with an edge. They have been assisting residential and light commercial firms since the inception. We are also the members of Better Business Bureau. We install and service HVAC equipment such as water heaters, whole house air cleaners and humidifiers.

Nextech's primary services include commercial HVAC services and installations for multi-site commercial customers. Nextech has 40+ regional offices strategically located nationwide and provides self-performing commercial HVAC/R service across the continental United States. They also provide commercial electrical and lighting solutions to ensure safety, energy efficiency, and reliable performance across facilities.

Nieboer Heating & Cooling, Inc. has been in business since 1993 and specializes in residential and light commercial work. They are committed to providing exceptional customer service for customer's complete satisfaction.

NJR Home Services is a trusted HVAC company dedicated to providing top-notch home comfort solutions. Specializing in furnace installation, air conditioning installation, and water heater installation, they cater to various heating and cooling needs. They offer customers home comfort solutions, including equipment sales and installations; lease and purchase of solar; and Comfort Service Plans, including heating, cooling, water heating.

Established in 2009 by Nicholas and Linda Bobel, NLB Heating & Cooling is a family-owned and operated business. They are the premier HVAC Contractor in the Joliet and Plainfield, Illinois area in the United States of America.

Turn to Noland Heat and Air for professional, reliable heating and cooling services in the Searcy area. Noland Heat and Air was founded in 2014 with a vision to provide affordable heating and cooling services for our community in Searcy, AR and other surrounding areas. They are a local, family-owned HVAC company committed to helping businesses and homeowners in central Arkansas get the HVAC services they need.

Nor-Cal Products has manufactured the highest quality vacuum chambers, components and engineered subsystems used in semiconductor, flat panel display, industrial coating, LED lighting, energy and research equipment.

As a manufacturer of duct products for environmental filtration systems, Nordfab Ducting are proud to help supply clean air for workers and equipment in workplaces of all sizes and types. Their ducting is an integral part of dust, mist, and fume collection systems around the world.

Nordstrom Heating & Air is committed to your comfort. Your expert PUD-certified heating and A/C contractor in Snohomish County, they provide highly knowledgeable sales, installation and service of energy-efficient heating and cooling systems, heat pumps, air filtration systems, fireplaces and smart home systems.

Nortek Air Solutions offers the application expertise, technological innovation, and world-class support of the group of custom heating, ventilation, and air conditioning (HVAC) brands in North America. they extensive family of brands represents a combined total of more than 390 years of experience, five manufacturing locations, and 165 sales representative offices to help find the perfect solution for your HVAC application.

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.

North Park Innovations Group, Inc. offers a high-tech HVAC solutions and product lines that were originally part of the company Stride Tool Inc.. North Park Innovations' product line includes the iManifold and iConnect solutions, all cloud services, and industrial training units.

Established in 1927, North Town Home Services provide expert appliance repair service, as well as repair and replacement services. From their highly skilled technicians to their professional sales and support staff, it is their hope that you will be absolutely satisfied with this one-of-a-kind, world-class experience.

Northcoast Plumbing and Heating is a reliable HVAC partner and services provider in Massachusetts, USA. They specialize in water heater replacement, commercial and residential plumbing, kitchen and bathroom plumbing, and both residential and commercial gas piping. Their expert team is dedicated to installing hot water systems and small appliances, such as gas ranges, fire pits, and BBQs, all with top-notch service and short wait times.

Northern Air Mechanical offers air conditioning repairs, installs, ventilation, refrigeration, ductwork, and all other HVAC installation/repair services - both commercial and residential - to homeowners and businesses across the East Valley including San Tan Valley, Queen Creek, Mesa, Chandler, Gold Canyon, and Apache Junction.

Northwest Envirofan offers a full line of Envirofan industrial and commercial ceiling fans, Agrifan agricultural and severe service ceiling fans, Protecto-Guard ceiling fan guards, Northwest Fan Controls, and fan accessories.

Northwest Mechanical is the go-to HVAC contractor in the Willamette Valley for all of the HVAC needs. They install and service HVAC, RTU's, commercial kitchen equipment, boilers, chillers, ice machines, walk-in coolers and freezers, and much more! They also have a full sheet metal fabrication shop for custom fabrication needs.

NovaFlex manufactures flexible ducting, hoses, extruded thermo-plastic ducts, adapters, PVC pipping, water and steam heaters, couplers and adapters. Designed for superior flexibility, for material handling, woodworking, welding exhaust, high temp., custom OEM applications and more.