Hill PHOENIX Inc., a Dover Company, is based in Conyers, Ga. As the first North American manufacturer of CO₂ equipment, the company designs and manufactures commercial refrigerated display cases and specialty products, refrigeration systems, integrated power distribution systems and walk-in coolers and freezers.

Carrier is the world’s largest provider of heating, ventilation, air-conditioning and refrigeration solutions. It manufactures refrigerated cases for chilled and frozen food as well as refrigeration systems for industrial and commercial uses. Carrier's CO₂OLtech solution is being used in nearly 200 supermarkets for LT application and nearly 100 supermarkets for both MT and LT application in cascade system and booster system design.

CSC builds and commercialises integrated refrigeration, air-conditioning and heating control systems for the commercial and industrial food industry, as well as arenas. CSC’s patented technologies also offer building ventilation, dehumidification and water heating.

CSC has also set itself apart from its competitors by commercialising technologies that substantially reduce environment impact; such as their latest breakthrough, the Eco₂-System. This CO₂ based, patented technology is the new standard in the Canadian refrigeration industry due to its environmental benefits and unique efficiency, as well as for the major energy savings it generates.

Advansor is a leading OEM manufacturer of sustainable thermal systems for the production of heating and cooling in, among others, supermarkets, refrigeration and freezing facilities, CHP plants, the food processing industry, chemical industry as well as air conditioning for office buildings with CO₂ as the refrigerant. Knowledge sharing with suppliers and customers is a natural part of Advansor's services, which always ensures the best and latest technology for our customers.

Mayekawa is a world leading supplier of industrial cooling & freezing systems, refrigeration compressors, and heat pumps. It actively promotes the "Natural Five" refrigerants, among them CO₂, ammonia, and hydrocarbons, for air conditioning, freezing, and cold storage.

Carnot Refrigeration was established in 2008 with the goal of addressing our sector’s failure to provide industrial and commercial clients with a thermodynamic option that would diminish environmental impact. Carnot Refrigeration makes a conscious effort to design refrigeration systems and heat pumps that cut down on the use of polluting refrigerants. It has taken the lead in its field by creating high-efficiency refrigeration systems designed by specialized engineers and manufactured in an environmentally controlled plant or at a constraint-free site. Carnot Refrigeration is experienced in meeting the needs of sports facilities (arenas), large and small supermarkets, distribution centres and the agri-food industry.

Since 1934, BITZER has been a market leader in refrigerant compressor technology. BITZER began producing CO₂ compressors in 1998 and has continued to develop this technology, allowing for increased energy efficiency and reliability while assisting our customers' environmental sustainability efforts.

Emerson Climate Technologies, a business segment of Emerson, is the world’s leading provider of heating, air conditioning and refrigeration solutions for residential, industrial and commercial applications. The group combines best-in-class technology with proven engineering, design, distribution, educational and monitoring services to provide customized, integrated climate-control solutions for customers worldwide. The innovative solutions of Emerson Climate Technologies, which include industry-leading brands such as Copeland Scroll and White-Rodgers, improve human comfort, safeguard food and protect the environment.

Founded in 1979, SCM Frigo initially manufactured components for refrigeration and special refrigerating systems. Since then, the company has developed a wide product range, including condensing units, power packs and chillers, for both indoor and outdoor installation. In 2004, the manufacturer presented a renewed range of units, with substantial technical and construction improvements for a CO₂ subcritical production line. The CO₂ line was extended in 2005 with a transcritical line and in 2008 with a CO₂ transcritical booster line as well.

Axima Refrigeration is market leader in industrial refrigeration and also active in commercial cooling & transport cooling. With over 35 years of experience, our service and maintenance department has a solid reputation. Axima Refrigeration focuses on ecology, energy and economy, offering innovative concepts and sustainable, energy efficient & ecological solutions, taking into account the return on investment of the technical installations.

Danfoss is a world leader in research, development and production of high efficiency electronic and mechanical components and control systems for refrigeration and air conditioning, heating, and power electronics, operating in over 100 countries. Danfoss has a steadfast commitment to developing new technologies for sustainable business growth in climate and energy.

Johnson Controls delivers products, services and solutions that increase energy efficiency and lower operating costs in buildings for more than one million customers. Operating from 500 branch offices in more than 150 countries, the company is a leading provider of equipment, controls and services for heating, ventilating, air-conditioning, refrigeration and security systems. Johnson Controls has been involved in more than 500 renewable energy projects including solar, wind and geothermal technologies. Its solutions have reduced carbon dioxide emissions by 16 million metric tons and generated savings of $7.5 billion since 2000. Many of the world’s largest companies rely on them to manage 1.5 billion square feet of their commercial real estate.

Nihon Itomic is a Japanese expert in CO₂-based heat pump hot water heaters that recently achieved an improved COP rating of 4.0. It is committed to offer a safe, comfortable, and environmentally friendly hot water system, catering to individual needs. The company supplies 70% of all electric water heaters to Japanese market.

Parker provides comfort and convenience through refrigeration and air conditioning. With extensive engineering expertise in motion and control, market leading breadth of product, and unequaled global distribution, Parker provides innovative components and complete systems suitable for CO₂, hydrocarbons and ammonia refrigerants to customers worldwide.

Sporlan division is one of the preferred component supplier of the refrigeration and air conditioning industrie. Sporlan’s success is built on a history of innovation, from pioneering selective charges for expansion valves, to our current precision step motor technology and electronic “smart” valves.

The Linde Group is a world leading gases and engineering company with almost 52,000 employees working in around 100 countries worldwide. It is one of the world's largest refrigerant distributors.  Linde's refrigerants business operates in 5 continents, with more filling stations and retail outlets than any other company. Its wide portfolio of products includes the natural refrigerants CO₂, Ammonia & Hydrocarbons.

U.S. based EcoThermics Corporation develops, manufactures and markets CO₂ compressor and related natural refrigerant technology for various OEM product applications. EcoThermics’ introductory compressor uses an axial piston/swash plate design making it robust, efficient, compact and manufacturable, and an enabling component for OEMs to build sustainable and economical water heating and ancillary cooling systems.

The Temprite tradition of innovation continues with energy-efficient coalescent and conventional oil separators for every type of refrigerant. Temprite’s 920 & 920R Series of coalescent oil separators are compatible with both ammonia (NH₃) refrigerant systems and subcritical CO₂ systems. The 130 Series of coalescent oil separators is designed specifically for transcritical CO₂. Every Temprite product is engineered and manufactured to enable improved refrigeration system thermal efficiency, reduce carbon emissions and provide the highest possible return on investment. Temprite products are the solution to rising energy costs, longer system life and reduced carbon emissions.

GEA Bock GmbH is one of the leading manufacturers of compressors and condensing units for stationary and mobile refrigeration and air conditioning. Its products are known for its high quality and GEA Bock exclusively offers products for commercial and industrial applications. Bock's product range spans solutions for all three natural refrigerants: CO₂ (R744), ammonia, and hydrocarbons.

GEA Bock is a company of GEA Group Aktiengesellschaft, one of the largest system provider for the production of food and energy with a group turnover of over 4,4 billion Euro.

HB is an innovative Danish company with 20+ years’ experience in developing and manufacturing sensors and controls for industrial NH₃ and CO₂ refrigeration systems. HB is further more supplier of private labeled capacity control sensors for major compressor manufacturer’s incl. JCI and GEA.

The basis for the activities of HB Products was founded in 1989 by encouragement from Sabroe A/S to the development of a special sensor to industrial refrigeration applications. In 2002, the opportunity to buy out the manufacturing activities from the mother company, Hans Buch & Co occurred and HB Products A/S was subsequently founded.

HB Products is certified according to EN ISO 9001:2008 and produces ATEX, cULus and IECEx certified products on request.

RSES, the Refrigeration Service Engineers Society, is the world’s leading education, training and certification association for heating, ventilation, air conditioning and refrigeration professionals. RSES credentials include the Active Specialized Member (SM), Certificate Member (CM) and Certificate Member Specialist (CMS) exam series (since 1935), and one of the largest EPA Section 608 programs in the industry. Founded in 1933, RSES is a non-profit organization of more than 15,000 members in 225 chapters in the U.S. and Canada, as well as affiliate organizations worldwide. 

DSI, a leading manufacturer and designer of plate freezers based in Denmark. Founded in 1969, DSI (A/S Dybvad Stål Industri) initially concentrated on manufacturing steel components. Ten years later, the Danish company produced its first plate freezer. Today, DSI is a leading company solely involved in designing and manufacturing manually-operated and automatic plate freezers, which are suitable for use in onshore and marine installations. Using different natural refrigerants, DSI’s product range includes horizontal as well as vertical models.

Roberts Oxygen is a family owned independent distributor with 38 locations and a network of CO₂ suppliers providing R744 refrigerant grade CO₂, as well as compressed and specialty gases within the United States.
Roberts is an innovative distributor of R744 refrigerant grade CO₂ with 50 pound cylinders, 1 1/2 to 3 3/4 ton Micro Bulk CO₂ delivery trucks and large trailers. Our Micro Bulk CO₂ trucks gives us greater flexibility to provide R744 in less than full size trailers or to restricted delivery areas. The CO₂ is tested to insure the moisture level is below 10 PPM as required for R744 refrigerant grade CO₂.

Since the 1940s, Galileo systems have been developed, designed, and built to operate in manufacturing firms in accordance with global CWQC (Company Wide Quality Control), to grant maximum control in all phases of the industrial process, from engineering to production, and to assure storage and transmission of all work data.

Today the Galileo TP range is extremely complete and covers all applications for the needs of both the small to medium, and large manufacturers providing: Leak Detection Systems (Hydrocarbons, High Pressures of CO₂, Helium, Hydrogen, HFC, HCFC), Evacuation Systems, Systems for Gases and Fluid Storage, Distribution and Recovery, Evacuating and Refrigerant Charging Machines (Hydrocarbons, CO₂, HFC,HCFC, OIL), Safety Systems for Hydrocarbons, Electrical Safety Compliance and Performance Test Systems.

Alfa Laval is a leading global provider of specialised products and engineering solutions based on its key technologies of heat transfer, separation and fluid handling. It is present in nearly 100 countries. Alfa Laval is continously developing new heat exchanger solutions to support the transition towards natural refrigerants.

BLUPURA manufactures high quality mains fed drinking watercoolers for the ho-re-ca and hospitality industries. Blupura follows a real eco-friendly philosophy: the cold water produced by their watercoolers is not only a cheap, efficient and safe alternative to bottled water, but Blupura is also the first watercoolers manufacturer in the world to use compressors with natural refrigerant gases (R290) with zero impact on global warming.

Star is the UK's largest independent industrial refrigeration engineering company. It first used CO₂ in the early 1990s. In 1996, Star were pioneers on behalf of Nestle to deploy a CO₂/NH₃ cascade system for freeze drying. Recently, Star installed a 15MW 90C ammonia district heating system in Norway- the world's largest. CO₂ continues to play a major role with orders for over 120 CO₂ systems for supermarkets currently in production.

Dorin entered the field of refrigeration in 1932 with its first open-drive compressor range. The first CO₂ trans-critical type was commissioned in 1999. Today, Dorin produces more than 70,000 compressors per year, and offers the widest CO₂ compressors range available in the market.

GEA Refrigeration Technologies, part of the internationally active GEA Group, is a synonym for industrial refrigeration technology. Since the end of the 19th century, GEA designs, engineers, installs, and maintains innovative key components and technological solutions for its customers for whom refrigeration is an essential part in their primary process. GEA Refrigeration Technologies has been active in cooling processes and products in the food and beverage sector and more.

Obrist Engineering focuses on the development of environmentally friendly systems and components for air conditioning and heating, with a stronghold in the automotive market. The main activities over the last 10 years have been dedicated to the development of R744 compressors, but also other components for use in CO₂ MAC systems, commercial and transport refrigeration, as well as heat pumps.

Advansor is a leading OEM manufacturer of sustainable thermal systems for the production of heating and cooling in, among others, supermarkets, refrigeration and freezing facilities, CHP plants, the food processing industry, chemical industry as well as air conditioning for office buildings with CO₂ as the refrigerant. Knowledge sharing with suppliers and customers is a natural part of Advansor's services, which always ensures the best and latest technology for our customers.

Bock Kältemaschinen manufactures compressors and condensing units for stationary and mobile refrigeration and air conditioning. It exclusively offers products for commercial and industrial applications. Its headquarters are situated in Germany, with several other locations throughout Europe and Asia. Bock's product range spans solutions for all three natural refrigerants: CO₂ (R744), ammonia, and hydrocarbons.

The SINTEF Group is the largest independent research organisation in Scandinavia. Its Energy Research department is building on expertise in refrigeration and heat pump technology using CO₂ as a refrigerant within mobile air conditioning, industrial and commercial refrigeration, hot water heat pumps, and transport refrigeration since 1989.

The International Institute of Refrigeration (IIR) is an independent intergovernmental organization to promote knowledge of refrigeration and associated technologies that are necessary for life in a science-based, cost-effective and environmentally sustainable manner. The IIR, co-sponsor of Atmosphere 2009, is organizing international conferences presenting latest technical advances in the field of natural refrigerants.

The Danish Technological is one of the world’s largest self-owned and non-profit institutes supplying technological services, and disseminating research- and technologically-based knowledge for the Danish and international business sector. Its Centre for Refrigeration and Heat Pump Technology is a key player in developing CO₂ projects.

The Leonardo da Vinci programme links policy to practice in the field of vocational education and training (VET). Projects range from those giving individuals the chance to improve their competences, knowledge and skills to Europe-wide co-operation between training organisations.

KHLim has established a unit, called KHLim Quadri, which serves as a learning network for the industry and organisations. Within the department Industrial Sciences and Technology a "techniques of refrigeration" unit was established to organise seminars and trainings, and disseminate the results of projects. KHLim is the project leader for the NARECO₂ project.

As one of the market’s leading suppliers of refrigeration systems that use environment-friendly carbon dioxide CO₂ as a refrigerant, Green & Cool’s driving force is to achieve the lowest operational cost for green refrigeration on the market. Since 2007, high-quality carbon dioxide refrigeration is successfully distributed worldwide under the Green & Cool name.

Koxka has been designing and manufacturing for over 40 years, refrigeration equipment that integrate in selling spaces. These spaces are alive, evolve and try to find a balance between consumption and sustainability. The Koxka ICE range consists of a wide selection of models in terms of display capacity, optimum occupied shop-floor space, energy consumption, etc, ensuring the perfect preservation of products on display. The superette range does not need installation so it is the answer to the current needs for flexibility, customization and immediacy that food distribution industry requires nowadays.

DSI, a leading manufacturer and designer of plate freezers based in Denmark. Founded in 1969, DSI (A/S Dybvad Stål Industri) initially concentrated on manufacturing steel components. Ten years later, the Danish company produced its first plate freezer. Today, DSI is a leading company solely involved in designing and manufacturing manually-operated and automatic plate freezers, which are suitable for use in onshore and marine installations. Using different natural refrigerants, DSI’s product range includes horizontal as well as vertical models.

Parker provides comfort and convenience through refrigeration and air conditioning. With extensive engineering expertise in motion and control, market leading breadth of product, and unequaled global distribution, Parker provides innovative components and complete systems suitable for CO₂, hydrocarbons and ammonia refrigerants to customers worldwide.

The Linde Group is a world leading gases and engineering company with almost 52,000 employees working in around 100 countries worldwide. It is one of the world's largest refrigerant distributors.  Linde's refrigerants business operates in 5 continents, with more filling stations and retail outlets than any other company.  Its wide portfolio of products includes the natural refrigerants CO₂, Ammonia & Hydrocarbons.

RAC Magazine is the leading source of news, information and analysis for the refrigeration and air conditioning industry. For over a century, RAC has provided decision makers with unrivalled coverage of the latest technical innovations that drive this sector. 

ammonia21.com aims to foster the worldwide use of ammonia (NH₃) in industrial and commercial refrigeration, chilling, and other applications. It is more than a platform to advertise NH₃-based technology. Rather it is an interactive tool that will help you stay in contact with the global ammonia community, and be informed about latest progress regarding the natural refrigerant (official industry nomenclature: R717).

hydrocarbons21.com aims to support the worldwide use of hydrocarbon refrigerants in cooling, refrigeration, and heating. It is more than a platform to advertise Hydrocarbons (HC) technology. Rather it is an interactive tool that will help you stay connected with the global HC community and be informed about latest developments regarding the use of hydrocarbons as natural refrigerants, including propane, isobutane, propylene and others. 

R744.com is your interactive platform to cover "Everything R744" in Mobile Air Conditioning (MAC), Refrigeration, Heat Pumps, and other applications. The website will keep you abreast of all developments on the natural refrigerant R744 (CO₂) in a user-friendly way. Since its launch, 33 more companies and research institutes have joined R744.com as Partners (as of May 2008). Pioneers in CO₂ Technology, they are actively involved in the development of this collaborative platform.