IGSHPA – International Ground Source Heat Pump Association
The International Ground Source Heat Pump Association (IGSHPA) is a non-profit, member-driven organization established in 1987 to advance ground source heat pump (GSHP) technology on local, state, national, and international levels.
GEO – Geothermal Exchange Organization
The Geothermal Exchange Organization (GEO) is the voice of the geothermal heat pump industry in the US. As a non-profit trade association, GEO promotes the manufacture, design, and installation of GeoExchange® systems.