State/Provincial Associations

California Geothermal Heat Pump Association

At California Geothermal Heat Pump Association, we strive to turn California’s regulations and policies into green action by government, consumers, and businesses. These include the installation or retrofit of GHPs (geothermal heat pumps) to eliminate greenhouse gas generation by buildings, and to foster their achievement of LEED-certified ratings and a march toward carbonless ZeroNetEnergy, the most sustainable building option of all. Our advocacy is matched with increasing education and training to develop installation professionals and maintain quality standards for evaluation and measurement that prove performance of GHP technology.

Geothermal Alliance of Illinois

Geothermal Alliance of Illinois represents the geothermal industry in the state of Illinois. Just think, your own backyard has the potential to be an energy source for heating and cooling comfort. Outdoor air temperatures fluctuate throughout the year with the changing seasons. In contrast, ground temperatures about four to six feet below the Earth’s surface remain relatively moderate and constant all year.

The Iowa Geothermal Association (IGA) is a non-profit Iowa trade association focused on advancing geothermal heating and cooling systems within Iowa and the Midwest. The Association was formed in 1989 as one of the early means of educating consumers and contractors about heating and cooling using geothermal technology.


Geothermal heating and cooling is a proven and extremely reliable method of delivering energy efficient, environmentally friendly heating and cooling to homes and businesses located in Iowa and neighboring states by using the earth’s constant ground temperature to provide heating, cooling and hot water in both new and retrofit construction.  The association is comprised of those professionals actively involved in the industry through the proper design, installation, servicing or support of geothermal heating and cooling systems. The IGA has a long and proud history of encouraging ethical business practices by all its members combined with consumer and contractor education. The IGA is a reputable source of information for anyone interested in geothermal heating and cooling systems and encourages its members to become IGSHPA Certified.

The Maryland Geothermal Association is a small group of industry leaders who came together to guide the industry during this transition of climate concerns, and energy production. We are the installers, drillers, manufacturers, and distributors who work every day in the geothermal industry. We focus on awareness, shaping policy at the state legislature, as well as engagement and education with utilities.

The Michigan Geothermal Energy Association (MGEA) that has served Michigan for over 30 years.  We are a non-profit organization made up of geothermal contractors, distributors, manufacturers, public utilities, electrical co-ops, money lending organizations, and architects.  Our goal is to promote geothermal technology in the State of Michigan.  In addition, we provide advocacy to the Michigan Legislature to support favorable legislation for Geothermal.

MGEA also partners with other environmental groups to provide net zero conferences for both residential and commercial customers.  These conferences were attended by over 1,000 people.   We promote our members through an active website and social media.  In a typical year our website will generate over 1,000 hits to our members’ individual websites.  MGEA has represented geothermal in national organizations, as well as national conferences.

The Minnesota Geothermal Heat Pump Association is a non-profit organization dedicated to further advancing the geothermal heat pump technology in the state of MN.  The organization is comprised of many industry professionals from contractors, engineers & designers, well drilling contractors, loop field contractors, heat pump manufacturers & distributors, electric utilities, and associates to the industry.  The primary goal of the association is to provide the industry with training to ensure proper design and installations as well as educating the public about the technology.  The other focus of the association will be to work with state and local officials on regulations and other issues that could affect either the geothermal industry, the environment, or the consumer.

The Missouri Geothermal Association brings together an exceptional group of unaffiliated professionals with a unified voice to promote government, industrial stakeholder, and public understanding of geothermal heat pump systems and to provide education, training, standards, and resource information that fosters wider use of this technology and ensures the highest quality systems and services for Missouri residents, businesses, academic and government institutions.

NY Geo

New York Geothermal Energy Organization (NY-GEO), a not-for-profit trade association, founded in 2014 and representing the geothermal heat pump (GHP) industry in New York State, is dedicated to promoting geothermal heating and cooling. Our 70 founding members include geothermal system designers, installers, drillers, general contractors, engineers, manufacturers, distributors, renewable energy consultants, and industry stakeholders who install and advocate for the use of ground-source heat pumps to heat and cool buildings throughout New York State.

The Ontario Geothermal Association (OGA) is a not-for-profit organization representing geothermal energy system designers, drillers, installers, equipment manufacturers and distributors to advance Ontario’s geothermal heating and cooling industry. The OGA strives to be a bridge between consumers, Government, and industry professionals while acting as a voice to increase awareness of the importance of working towards using a greener, cleaner and self-sustainable energy source.

NOTE: Not all of state or provincial associations are listed on the page at this time. We are continually working with associations and with the advocacy committee to include additional resources as we are provided with the information. Contact for questions or to provide additional information.