| Canadian GeoExchange Coalition: Coordinates private and public sector stakeholders to inform, develop and promote products and services. Includes mission statement, membership and technological information. [English, French] |
| Earth Energy Society of Canada (EESC/SCES): Information about the technology from the EESC. Includes technological backgrounds, ecological impacts and links to suppliers. |
| European Heat Pump Association (EHPA): Non-profit organisation which promotes awareness and proper deployment of the technology in Europe. Includes basics, news, publications, events calendar, project and regulatory information. |
| Geo-Heat Center: Information for the prospective owner from the Oregon Institute of Technology. Includes technology background, terminology and description of various mechanisms. |
| Geoexchange: Information on the technology from the U.S. Geothermal Heat Pump Consortium. Includes detailed case studies of applications, publications, statistics and facts. |
| Geothermal Heat Pump Energy - How It Works: Explanation of the technology basics. Addresses heat extraction technic and mechanisms. |
| Geothermal Heat Pump Systems: Describes the concept with animated graphics. Addresses installation concepts and mechanisms. |
| Geothermal Heat Pumps: Technical fact sheet about the benefits of residential systems. Includes technical background and installation concepts. |
| International Energy Agency (IEA) Heat Pump Centre: Information from the IEA about the technology, applications and markets. Includes FAQs, research profiles and reports, announcements of conferences and events and links. |
| International Ground Source Heat Pump Association (IGSHPA): Promotes the use of the technology worldwide through education and communication. Includes technical and commercial aspects, case studies, publications and conference calendar. |
| Wikipedia: Heat Pump: Free encyclopedia article covering the technology basics. Addresses background, thermodynamic aspects for different types of heat pumps. |