Maxair has a qualified and experienced team of professional engineers, project managers and field technicians that assure all aspects of heating, cooling and plumbing systems. They make sure the systems are optimized for maximum reliability, up-time and efficiency, while minimizing the associated energy consumption.

Established in 1967, McAleer & Rushe are specialist design & build contractors delivering high-quality buildings across UK & Ireland. They are also Specialist Design & Build Contractors, Developers, Asset Managers, and Investors in multi-sector, mixed-use schemes.

McKinstry is a US-based energy efficient systems and advanced renewable energy systems firm. From new construction and ongoing operations to adaptive reuse, energy retrofits and advanced renewable energy systems, McKinstry provides a single point of accountability across the entire building lifecycle. Services offered include Energy Performance Contracting, Energy Services, Smart Buildings, Renewable Energy, Zero Energy and Energy Audit.

McLaughlan Transport Ltd is a family/employee owned haulage and distribution business based in North Muirton Industrial Estate in Perth, Scotland. The main business operation is collecting and consolidating local produce and distributing to mainland markets and rdc’s across the UK/Europe. Full loads to all parts of UK/Europe are also available.

Meitav-tec one of the companies in the field of intelligent HVAC temperature control. Since its foundation in 1989, Meitav-tec has been providing innovative, tailor made solutions for temperature control. Driven by technological innovation and guided by a veteran, top expertise R&D team, Meitav-tec has an ample experience in the design, manufacture, sale and support of temperature control solutions.

Metaltherm HVAC is a pioneer in design, installation and products for air conditioning, ventilation and exhaust in commercial and industrial segments. They are specialized in solutions for services and products for air conditioning, ventilation and exhaust, serving throughout the national territory in various industrial and commercial segments.

Meyer Machine Supply & Equipment LLC is a renowned US-based manufacturer of electric and gasoline powered vacuums for air duct and dryer vent cleaning, as well as a complete line of supplies.

Midwest Heating, Cooling & Plumbing service and maintain all makes and models of furnaces and air conditioners in the customer's homes. When they need a new system, they select only the most reliable systems from Trane or Lennox for the customers.

Mitch Craig Heating & Cooling are the renowned Clarksville AC repair and AC installation service professionals. As trusted heating & air conditioner contractors in Clarksville, IN, they have the tools, equipment, and experience to keep the equipment running smoothly all year long in the field of heating and air conditioning. They also service New Albany, Sellersburg, Floyds Knobs, and Louisville, KY, for their furnace repair needs as well!

Mitsubishi Heavy Industries, Ltd. delivers innovative and integrated solutions across a wide range of industries from commercial aviation and transportation to power plants and gas turbines, and from machinery and infrastructure to integrated defense and space systems.

Mitsubishi Jisho Sekkei is a software solutions, technology and architectural engineering company, based out of Tokyo, Japan. They provide a wide range of services including architectural design, structural engineering, MEP engineering, construction supervision, environmental planning and management, urban planning and design, renovation and building management services.

Monogram sources the highest quality materials for their appliances. From the commercial-grade stainless steel for their refrigerators to the exquisite sapphire glass on their cooktop and range knobs, they are inspired by many industries. Their designs incorporate leading-edge materials used by high-end automotive and aeronautics companies to ensure their appliances bring lasting beauty and quality.

MOS Mechanical offers a complete building, building maintenance and building renovation service. The company's building, maintenance and renovation division can always deliver the best quality, design, and value for money end product, be it domestic, commercial or just a simple revamp of a room.

Motion Industries is an American distributor of industrial parts and industrial technology solutions headquartered in Birmingham, Alabama, USA. From automation to inventory management to parts repair and fabrication, Motion Industries' many services are key to keeping their customers' sites running at maximum efficiency.

Multi-Wing America specializes in designing custom engine cooling fans, radiator fans, HVAC fans, and refrigeration fans in the U.S., Canada and Mexico. Multi-Wing America’s engineering staff can customize an axial fan solution for virtually any air-moving application.

National Comfort Institute, Inc. (NCI) is an organization that provides heating, air conditioning, plumbing and electrical contractors with a focused offering of services and tools to help them improve their businesses, differentiate themselves, grow, and become more profitable. NCI accomplishes this through membership groups and by providing unique business management, sales, marketing and technical tools, training, support and coaching.

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.

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.

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.

NordDisk delivers services and equipment to the professional market within refrigeration, freezing and climate. They are the main supplier of Freor refrigeration and freezing counters for shops. They tailor solutions and take total projects from A to Z within store cooling, climate or small industrial plants.

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.

NTT DATA – a part of NTT Group – is a trusted global innovator of IT and business services headquartered in Tokyo. They help clients transform through consulting, industry solutions, business process services, digital & IT modernization and managed services. NTT DATA enables them, as well as society, to move confidently into the digital future.

nVent RAYCHEM is a provider of heat-trace management systems for infrastructure, industrial, commercial and residential buildings, with operations globally. They help customers enhance productivity and reduce their costs by simplifying installation and minimize downtime during operation.

Oakes Energy Services Ltd (Oakes Energy) designs and installs both commercial and domestic renewable energy systems. In turn, dramatically reducing the cost of energy consumption and enabling the business or home to save thousands of pounds on their energy bills. Oakes Energy Services Limited was established in 2007 with the aim of offering customers an alternative, more sustainable approach to their energy needs.

Oakwood Homes, a Berkshire Hathaway company, has always built, sourced and stayed true to what's local. By leveraging resources and partners right here at home, they can deliver true luxury in homes at every price point - for people in every stage of life.

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.

OEI is a second generation, family-owned and operated business offering air conditioning and heating services to home or business. Rely on their certified technicians for advice, sales, repairs, and installations.

Oklahoma Chiller Corporation is a commercial and industrial HVAC company with offices in Tulsa and Oklahoma City. In addition to mechanical and HVAC services, Oklahoma Chiller offers building automation services and equipment rental services.

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.