| Aloha Systems, Inc. | | Contracting, engineering, and consulting firm specializing in DSM measurement and verification, power quality enhancement, and rate optimization. |
| Ameresco | | Provide demand-side management, cogeneration facilities, renewable sources, procurement, and power plant development. Customers served, solutions, and results. |
| Baron Power Ltd. | | Develops and manufactures power quality products and energy management systems. |
| CEM Engineering | | Serving industrial customers to help manage energy use and reduce energy cost through proper application of high efficiency energy conversion technology. Services, rates, and contact information. |
| Comsatec Inc. | | All Canadian company offering natural gas management and transportation services to industrial and commercial clients. Client-tailored services for both electricity and natural gas. |
| Dalkia | | Providers of energy and integrated services management. Services, case studies, and contact information. UK company. |
| DHR Consultancy Services Ltd | | Thermal imaging for energy efficiency and plant maintenance, both ground and aerial high resolution surveys. Services and contact information. UK company. |
| Dinesh Rathi & Associates | | Engineering, CADD, and consulting services. Products, clients list, and contact information. India based company. |
| Distributed Energy Forum | | Offers distributed energy information and decision making tools for various energy sources. Services home owners, small and large business. |
| Electrex | | Instruments design and manufacturing for measuring, monitoring and saving electrical energy. |
| Elkor Technologies Inc. | | Manufacturer of inexpensive power monitoring devices and interfacing products for energy management and DDC control applications. |
| Elyo | | International corporation that offers private companies and public amenities outsourcing and delegated management solutions. Site is available in English and French. |
| Enerdata | | Information offerings, and training in energy policy, programming and modelling tools. |
| Energieberatung Dr.Frohne Berlin | | Assist commercial businesses and public agencies in reducing their energy and water costs by consulting, analysis and financing needed efficiency upgrades. German company, site is in both German and English. |
| Energy Advantage Inc. | | Independent provider of energy and environmental management services to large retail, restaurant, and commercial enterprises. |
| Energy and Water Solutions | | Specialize in environment solutions. Products include non-toxic plant and mineral based paints and finishes, and energy and water saving products. Links, energy savings, customers, and background information. Australian Company. |
| Energy Associates, Inc. | | Offers a range of products and services designed to manage energy costs and price exposure for large commercial, industrial end-users, and utility customers. |
| Energy Control Group Incorporated | | Offers sales, installation, and custom design for energy efficient lighting, industrial control, monitoring, and water conservation products. |
| Energy Service Investment Corporation | | Contract services for both major and independent energy producers. Services include gas processing, investments, marketing, accounting, and oil and gas wells. |
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