| Company | Membership Level | Contact | Address | City | State | Zip | Phone |
| Advanced Polymerics | Small Business |
Rick Krepps
| 10 Delaware Drive | Salem | NH | 03079 | (603) 328-8177 |
| AltaRock Energy, Inc. | Full |
Jessamine Guerzon
| 4010 Stone Way N., Suite 400 | Seattle | WA | 98103 | (206) 729-2400 |
| AMSA, Inc | Small Business |
Cindy Wallick
| 1406 E. Pine St | Midland | MI | 48640 | (989) 839-0377 |
| Berkshire Hathaway Energy | BOARD |
Jonathan Weisgall
| 1800 M Street NW, Suite 330N | Washington | DC | 20036 | (202) 828-1378 |
| Boart Longyear | Full |
Steve Price
| 2745 West California Avenue | Salt Lake City | UT | 84104 | (801) 973-6667 |
| C. Steinweg (Houston, TX) Inc. | Small Business |
Alex Baron
| 9002 Chimney Rock G-383 | Houston | TX | 77096 | 281-891-9100 |
| Cameron International | Full |
Roger Bastian
| 930 Shiloh Rd. Bldg. 44 Suite F | Windsor | CA | 95492 | (707) 836-1611 |
| Chadbourne & Parke LLP | EXECUTIVE |
Keith Martin
| 1200 New Hampshire Ave., NW, Suite 300 | Washington | DC | 20036 | (202) 974-5600 |
| Coastal Technologies, Inc. | Small Business |
Norman Mansson
| P.O. Box 624 | Hampton | SC | 29924 | 803-943-4822 |
| Controlled Thermal Resources | Small Business |
Rod Colwell
| Level 17, 71 Eagle Street | Brisbane | Australia | 4012 | +61412759878 |
| Cooling Tower Depot, Inc. | Small Business |
Carl Barday
| 651 Corporate Circle | Golden | CO | 80401 | 303-704-3098 |
| Cornell Energy Institute | University |
Jefferson Tester
| 2160 Snee Hall | Ithaca | NY | 14853 | (607) 254-7211 |
| CTi | Small Business |
George Constas
| 22 Beta Court | San Ramon | CA | 94583 | (925) 487-9310 |
| Cyrq Energy, Inc. | BOARD |
Nick Goodman
| Kearns Building, Suite 600, 136 South Main Street | Salt Lake City | UT | 84101 | (801) 875-4200 |
| Dewhurst Group | Small Business |
Warren Dewhurst
| 13617 Anndyke Place | Germantown | MD | 20874 | (801) 209-2032 |
| Domenic J. Falcone Associates | Full |
Domenic Falcone
| 723 West Hill Way | Lansdale | PA | 10446 | (267) 566-7748 |
| DOSECC Exploration Services, LLC | Small Business |
Dennis Nielson
| 2075 South Pioneer Rd. | Salt Lake City | UT | 84104 | (801) 583-2150 |
| ENEL GREEN POWER NORTH AMERICA, INC. | BOARD |
Terry Page
| 100 Brickstone Square, Suite 300 | Andover | MA | 01810 | |
| EnergyNet | Full |
Brandon Savage
| 7201 W. I-40, Suite 319 | Amarillo | CA | 79106 | (806) 463-3621 |
| EthosEnergy Group | EXECUTIVE |
Reza Akhavain
| 184 Malbert Street | Perris | CA | 92570 | 949-521-3878 |
| EvapTech, Inc. | Small Business |
Joe Padila
| 6166 Pleasant Valley Road | El Dorado | CA | 956232 | (530) 957-0171 |
| Exchanger Industries Limited | Full |
Chris Berranger
| | | | | |
| EXERGY | Full |
Enrica Biondi
| Via Santa Rita 14 | Olgiate Olona | Italy | | |
| Expro Group | Full |
Michelle Bearb
| 738 Highway 6 South, Suite 1000 | Houston | TX | 77079 | (713) 463-9776 |
| Fuji Electric Corp. of America | Full |
Yoshiko Morris
| 5 Hutton Centre Drive, Suite 840 | Santa Ana | CA | 92707 | 714-540-3854 |
| GEFCO-Newsom Industries | Full |
Heidi Hughes
| 2215 S. Van Buren | Enid | OK | 73703 | (580) 234-4141 |
| Geologica Geothermal Group, Inc. | Small Business |
Leland Davis
| 5 Third Street, Suite 420 | San Francisco | CA | 94103 | 775-525-0019 |
| Geothermal Development Associates | Full |
Martin Booth
| 3740 Barron Way | Reno | NV | 89511 | (775) 825-5800 |
| Geothermal Resource Group | Full |
Bill Rickard
| PO Box 11898 | Palm Desert | CA | 92255 | (760) 341-0186 |
| Geothermal Science Inc. | Small Business |
Richard Holt
| 150 El Camino Real Suite 240 | Tustin | CA | 92780 | 949-681-8361 |
| GeothermEx | Full |
Ann Robertson-Tait
| 3260 Blume Drive, Suite 220 | Richmond | CA | 94804 | (510) 527-9876 |
| Global Power Solutions, LLC | Small Business |
Gary McKay
| 602 Park Point Drive, Suite 270 | Golden | CO | 80401 | (303) 888-4821 |
| Hopkins Oil Tools | Small Business |
Robert Hopkins
| 17 Cowee Drive | Mound House | NV | 89706 | 775-882-7983 |
| Horizon Well Logging, Inc. | Small Business |
Douglas Milham
| 3769 Constellation Rd. "H" | Lompoc | CA | 93436 | (805) 733-0972 |
| Imperial Irrigation | Full |
Rosa Maria Gonzales
| 333 E. Barioni Blvd. | Imperial | CA | 92251 | (760) 275-3991 |
| Indar Electric, S.L. | Small Business |
Ander Aranbarri
| Barrio Altamira, Pol. Industrial Txara | Gipuzkoa | Spain | | +34 943 028 200 |
| Industrial Builders, Inc. | Full |
Halley Dickey
| PO Box 97 (203 N. 21st Ave.) | Caldwell | ID | 83606 | 909-838-6235 |
| Inter-American Development Bank | Agency |
Sonia Nurse
| 1300 New York Ave NW | Washington | DC | 20577 | (202) 523-7765 |
| International Cooling Tower USA, Inc. | Small Business |
Dumont Swezy
| 407 Independence Parkway, Building B | La Porte | TX | 77571 | 303-588-8792 |
| Island Oil Exploration | Small business |
Steve Riley
| 12 Calle 1-25 Zona 10 | Guatemala City | Guatemala | 01010 | |
| Jim Ray Co., Inc. | Small Business |
Jamey Ray
| 10645 Richmond Ave., Suite 130 | Houston | TX | 77042 | (713) 785-5055 |
| John M. Phillips | Small Business |
John Greenwell
| 2755 Dawson Ave | Signal Hill | CA | 90755 | (562)595-7363 |
| Kenai Drilling LTD. | Full |
David Arias
| 2651 Patton Way | Bakersfield | CA | 93308 | 661-587-0117 |
| KMS Technologies | Small Business |
Kurt Strack
| 11999 Katy Freeway, Suite 200 | Houston | TX | 77057 | (713) 532-8144 |
| Layman Energy Associates, Inc. | Small Business |
Erik Layman
| 1582 Cordova Drive | San Luis Obispo | CA | 93405 | 805-541-6939 |
| Leidos Corporation | Full |
Sabodh Garg
| 10260 Campus Point Drive, MS C2E | San Diego | CA | 92121 | (858) 826-1615 |
| Maarky Thermal Systems | Small Business |
Ranga Nadig
| 1415 Marlton Pike East, Suite 604 | Cherry Hill | NJ | 08034 | (856) 470-1504 |
| Mink GeoHydro | Small Business |
Roy Mink
| PO Box 447 | Worley | ID | 83876 | |
| Mitsubishi Power Systems, Inc. | Full |
Junpei Hirosato
| 100 Colonial Center Parkway Suite 500 | Lake Mary | FL | 32746 | (407) 688-6289 |
| Nalco | Full |
Steve Hoefs
| 1601 W. Diehl Road | Naperville | IL | 60563 | (630) 305-2221 |
|