Heat Transfer Systems Inc.
Designs and manufactures broad range of thermal processing products. Includes heat exchangers, heat recovery boilers, and waste heat recovery units. Service include repairs, replacements, and modifications of existing equipment.
http://www.heattransfersys.com

Heatran
Korea. Specializes in design of heat transfer equipment and related systems, including heat exchangers, heat recovery steam generators, waste heat boilers, economizers, condensers, heaters, and coolers.
http://www.heatran.com/

Transparent Energy Systems Pvt Ltd
Provides and develops Heat Recovery Systems for harnessing all types of waste heat, originating from various fuels and from different industrial sources and process systems.
http://www.heatrecovery-system.com

Envirosep
EnviroSep (based in Georgetown, SC USA) designs and manufactures pumps & complete integrated solutions for fluid handling, heat transfer and energy recovery. Capabilities range from small, standardized pumping equipment packages to complex, engineered systems
http://www.envirosep.com/

Therma-Stor Products
Manufacturer of free-standing dehumidifiers, ducted/installed dehumidifiers, commercial dehumidifiers, ventilation systems, heat recovery water heaters, restoration equipment (including dehumidifiers, air movers, meters, & instruments) & more.
http://www.thermastor.com/

Beta Control Systems
Design and build acid recovery systems: hydrochloric and sulfuric. Also heat recovery, pre-flux regeneration, and rinse water treatment systems.
http://www.betacontrol.com

Aalborg Industries
Aalborg Industries designs, manufactures and services marine steam and hot-water boiler plants including oil/gas-fired burners and control systems, thermal fluid heating systems, exhaust gas economizers, heat exchangers and inert gas systems. Aalborg Industries supplies its maritime deck and engine room equipment for all types of mercantile ships including Floating Production Systems. Industrial process boilers and waste heat recovery units are supplied. Aalborg Industries has a global After Sales organisation supplying service and spare parts.
http://www.aalborg-industries.com

Enertran Inc
Canada. Specializes in energy transfer equipment and systems. Includes geothermal heating and cooling units, such as dehumidifiers, drying machines, heat pumps, and heat recovery products.
http://www.enertran.ca

Heat Pipe Technology, Inc.
Manufacturer of heat pipes for dehumidification and heat recovery
http://www.heatpipe.com/

Transparent Energy Systems Private Limited
India. Group of companies specializing in applications of heating and cooling technology. Includes ammonia absorption refrigeration, waste heat recovery and recycling, and various forms of heat and electricity cogeneration.
http://www.tesplaarp.com