GeoEnergy Solutions Inc.
Provides design and installation of geothermal heating and cooling systems. Also offers sonic drilling for geothermal systems. Based in Bolton, Ontario.
http://www.geoenergy-solutions.com/

Simco Drilling Equipment
Welcome to Simco Drilling Home Page
http://www.simcodrill.com

GeoGem Ltd
Welcome to GeoGem, manufacturer of high performance diamond drilling tools for the mining, civil engineering, geotechnical and oilfield industries
http://www.geogem.co.uk/

Rotech Drilling Services
Rotech supply downhole motors for high temperature and underbalance drilling and scale removal operations in the oil & gas and geothermal markets, as well as the Aquaflow range of flow dredger tools and one of the best equipped fabrication facilities in the north east of Scotland, UK.
http://www.rotech.co.uk/

Thein Well Company
Complete water well drilling contractor. Also conducts geothermal and foundation drilling as well as sales and servicing of municipal, industrial, agricultural and residential pump systems.
http://www.theinwellrochester.com/

Raab Well Drilling Inc
Well drilling for residential, commercial, municipal, commercial, environmental, irrigation and geothermal- pump installtions and repair- water treatment systems.
http://www.raabwelldrilling.com/

International Geothermal Association
Information on geothermal energy in use around the world, world conferences on geothermal, and links to related web sites.
http://iga.igg.cnr.it/index.php

Geosearch, Inc.
Geosearch offers environmental drilling services throughout New England. Monitor wells, test borings and geotechnical drilling are specialties. Capabilities include: full size truck mounted drill rigs, direct push drilling with geoprobe truck and track mounted rigs, air vacuum excavation with air knife techniques, air rotary drilling for clean water and geothermal wells.
http://www.geosearchinc.com

DOE: Geothermal Research Department
Program of the U.S. Department of Energy (DOE). Focus on drilling, field testing and related technologies.
https://cfwebprod.sandia.gov/cfdocs/GPI/

Southern Methodist University Geothermal Lab
Information about heat flow, temperature logging, geothermal resource assessments, and education.
http://www.smu.edu/geothermal/