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20/10 Engineering Group, LLC
1216 Tower Rd
Schaumburg, IL 60173
Phone: 847-882-2010
Fax: 847-882-2201

Designer/Engineer/Architect


Website: http://www.2010engineering.com
Advanced Geothermal Plumbing & Heating LLC
326 Wilcox Ave
Elgin, IL 60123
Phone: 847-695-1657

Installing Contractor

Looper 
Architectural Consulting Engineers
837 Hayes Ave
Oak Park, IL 60302
Phone: 708-524-0272

Designer/Engineer/Architect


Website: http://www.ace-oakpark.com
Area Mechanical Inc.
2707 Huffman Boulevard
Rockford, IL 61103
Phone: 815-964-2070
Fax: 815-964-2071

Mechanical Contractor


Website: http://www.areamechanical.com
Bradley University, Peoria,IL
3408, Horse Creek Rd
Normal, IL 61761
Phone: 3182378135
Phone (alternate): 3182378135

Educational (non-voting)

Bratcher Heating And Air Conditioning
1210 Fort Jesse Rd
Normal, IL 61761
Phone: 309-454-1611
Fax: 309-862-0104

Installing Contractor

Installer Looper Service Tech 
Website: http://www.BratcherComfort.com
Bratcher Heating And Air Conditioning
2802 B Hundman Dr
Champaign, IL 61826
Phone: 217-378-HEAT

Installing Contractor

Installer Looper Service Tech 
Website: http://www.BratcherComfort.com
Central Heating & A/C
#1 Robin Ln
Pekin, IL 61554
Phone: 309-346-6100
Fax: 866-346-5510

Drilling Contractor/Loop Installer, Installing Contractor

Looper 
Website: http://www.centralheatingair.com
Chicagoland Geothermal
312 Van Damin Ave.
Glen Ellyn, IL 60137
Phone: 630-400-9012
Phone (alternate): 630-893-2222

Drilling Contractor/Loop Installer, Installing Contractor


Website: http://www.chicagolandgeothermal.com
ClimateMaster Inc.
7300 SW 44th Street
Oklahoma City, OK 73179
Phone: 405-745-6000

Manufacturer


Website: http://https://www.climatemaster.com
ComEd
3 Lincoln Center
Oakbrook Terrace, IL 60181

Phone (alternate): 630-437-3386

Investor-Owned Utility


Website: http://www.comed.com
Connor Co
2800 NE Adams St
Peoria, IL 61603
Phone: 309-688-1068
Fax: 309-688-4120

Supplier/Distributor


Website: http://www.connorco.com
Cook County Bureau Of Economic Development
69 West Washington Street, Suite 2900
Suite 2900
Chicago, IL 60602
Phone: 3126030310

Friend of the Industry (non-voting)


Website: http://www.cookcountyil.gov
Corn Belt Energy
One Energy Way
Bloomington, IL 61705
Phone: 309-662-5330

Coop/Municipal Utility - Lg


Website: http://www.cornbeltenergy.com
Crossroads Geothermal Drilling
15500 E State Hwy 33
PO Box 345
Teutopolis, IL 62467
Phone: 217-347-5755
Fax: 217-347-5715

Drilling Contractor/Loop Installer

Looper 
CWLP
1008 E Miller St
Springfield, IL 62702
Phone: 217-789-2070
Fax: 217-789-2210

Coop/Municipal Utility - Lg


Website: http://www.cwlp.com
Design Air
1201 N 19th St
Decatur, IL 62521
Phone: 217-429-1105
Fax: 217-475-0419

Installing Contractor

Installer Service Tech 
Website: http://www.designairhvac.com
Duden & Silver Inc
103 N Main St
Gifford, IL 61847
Phone: 217-568-7954
Fax: 217-568-7305

Installing Contractor


Website: http://www.dudensilver.com
Durbin Geothermal
PO Box 68
Beecher City, IL 62414
Phone: 618-487-5402
Fax: 618-487-5037

Drilling Contractor/Loop Installer

Looper 
Website: http://www.letsdig.com
Eastern Illini Electric Co-op
330 W Ottawa St
Paxton, IL 60957
Phone: 800-824-5102
Phone (alternate): 217-379-2131
Fax: 217-379-2936

Coop/Municipal Utility - Lg


Website: http://www.eiec.coop
Egyptian Electric
1732 Finney Rd.
Murphysboro, IL 62966
Phone: 618-684-2143
Phone (alternate): 618-965-3434
Fax: 618-965-3111

Coop/Municipal Utility - Lg


Website: http://www.eeca.coop
Element Energy Consulting
108 S Seminary Ave
Park Ridge, IL 60068
Phone: 312-405-8401

Designer/Engineer/Architect


Website: http://www.element-co.com
Enertech Global LLC
2506 W Elm St
Greenville, IL 62246
Phone: 618-664-9010
Fax: 618-664-4597

Manufacturer


Website: http://www.enertechgeo.com
G. O. Loop
114 Karavan Dr
PO Box 86
Fox Lake, WI 53933
Phone: 920-326-2050

Drilling Contractor/Loop Installer

Design Module 
Website: http://www.goloopwi.com
Garber Heating & Air Conditioning
310 Detroit Ave
Morton, IL 61550
Phone: 309-696-2862
Phone (alternate): 309-266-9372
Fax: 309-266-0742

Mechanical Contractor

Installer Service Tech 
Website: http://www.garberheating.com
Geothermal Eco Options, Inc
407 2nd Ave., SW
Cresco, IA 52136
Phone: 563-382-0300
Phone (alternate): 563-547-2871
Fax: 563-382-0305

Drilling Contractor/Loop Installer

Looper 
Website: http://www.geo-inc.com
Geothermal Exchange Organization
1050 Connecxticut Ave., NW, Ste. 1000
Washington, , DC 20036
Phone: 888-255-4436

Friend of the Industry (non-voting)


Website: http://www.geoexchange.org
Grasser's Plumbing And Heating
404 W Main St
McNabb, IL 61335
Phone: 815-882-2111
Phone (alternate): 815-882-2111
Fax: 815-882-2157

Installing Contractor


Website: http://www.grassersplumbing.com
Helm Inc./ Helm Service
2279 East Yellow Creek Road, PO Box 690
Freeport, IL 61032
Phone: 815-297-6025
Fax: 815-297-9075

Mechanical Contractor

Service Tech 
Website: http://http:www.mechinc.com
Hinrichsen Heating And Air Conditioning
255 N Eureka St
Goodfield, IL 61742
Phone: 309-965-2604

Installing Contractor


Website: http://www.hinrichsenheating.com
Houston Plumbing Heating Cooling
111 N Market St
Paxton, IL 60957
Phone: 217-379-2329
Fax: 217-379-2166

Installing Contractor


Website: http://www.houstonsplumbing.com
Hoveln Heating And Cooling, Inc
903 N Church St
PO Box 596
Thomasboro, IL 61878
Phone: 217-643-2125
Fax: 217-643-2128

Installing Contractor

Installer Service Tech 
Website: http://www.hoveln.com
Hydronics, Inc.
3871 Sunset Ln.
Northbrook, IL 60062
Phone: 847-942-4542

Installing Contractor

Illinois State University

Normal, IL 61761

Educational (non-voting)

JACK WELLING INC
10929 Franklin Ave STE U
Franklin Park, IL 60131
Phone: 847-258-3277
Phone (alternate): 847-650-1664

Installing Contractor


Website: http://www.jackwellinginc.com
Jansen Heating, Air Conditioning & Electrical
4341 Rolling Hills
Freeport, IL 61032
Phone: 815-262-4373
Phone (alternate): 815-233-6231
Fax: 815-616-8675

Installing Contractor


Website: http://www.jansenhvac.com
Jeckel Plumbing & Heating, LLC
117 E Third St, PO Box 21
Delavan, IL 61734
Phone: 309-244-8265
Phone (alternate): 309-369-2214
Fax: 309-244-7402

Installing Contractor

Jo-Carroll Energy, Inc (NFP)
793 US Rte 20 West, PO Box 390
Elizabeth, IL 61028
Phone: 800-858-5522 ext. 1339
Fax: 815-858-2080

Coop/Municipal Utility - Lg


Website: http://www.jocarroll.com/
KCH Mechanical, Inc
15500 E State Hwy 33
Teutopolis, IL 62467
Phone: 217-347-5755
Fax: 217-347-5715

Installing Contractor

Looper 
L & H Services Inc
1140 Dixie Hwy, Ste 4
Beecher, IL 60401
Phone: 708-946-2526
Phone (alternate): 888-946-2526
Fax: 708-946-9632

Installing Contractor

Installer Service Tech 
Website: http://www.lhserviceshvac.com
Lemanski Heating & A/C
1398 S Armstrong Ave
Freeport, IL 61032
Phone: 815-232-4519
Fax: 815-235-1444

Installing Contractor

Installer Service Tech 
Website: http://www.lemanskihvac.com
Loescher Heating And AC
1860 S Walnut Rd
Freeport, IL 61032
Phone: 815-232-6166

Mechanical Contractor


Website: http://www.loescherhvac.com
McDonald Renewable Energy
413 N Walnut St
Itasca, IL 60143
Phone: 630-780-6928

Installing Contractor

Installer Service Tech 
Website: http://www.mcdonaldrenewableenergy.com
MEP Associates
2720 Arbor Ct.
Eau Claire, WI 54701
Phone: 651-379-9120

Designer/Engineer/Architect


Website: http://www.mepassociates.com
Midwest Geothermal, LLC
4546 Roger B. Chaffee Mem Dr.
Grand Rapids, MI 49548
Phone: 616-514-1101
Fax: 6165141125

Drilling Contractor/Loop Installer


Website: http://www.mwgeothermal.com
Molitor Plumbing LLC
8072 E Rush Town Rd
Stockton, IL 61085
Phone: 815-745-2613
Fax: n/a

Installing Contractor


Website: http://www.molitorplumbing.com
Monroe County Electric Cooperative
PO Box 128
Waterloo, IL 62298
Phone: 618-939-7171

Coop/Municipal Utility - Sm (< 5000 meters)


Website: http://www.mcec.org
Neuhaus Heating & A/C, Inc
10235 S Old Rte 66
Litchfield, IL 62056
Phone: 217-324-2818
Fax: 217-324-2881

Installing Contractor

Looper 
Website: http://www.neuhaushvac.com
Plumbers And Pipefitters Local 23
4525 Boeing Drive
Rockford, IL 61109
Phone: (815) 397-0350
Fax: (815) 397-0466

Educational (non-voting)


Website: http://www.ualocal23.org
Plumbers And Pipefitters Local 501
1295 Butterfield Rd
Aurora, IL 60502
Phone: 630-692-7316
Phone (alternate): 630-692-7326
Fax: 630-978-9240

Educational (non-voting)


Website: http://www.ualocal501.org/
Plumbers And Pipefitters, Local 23
4525 Boeing Dr.
Rockford, IL 61109
Phone: 8153970350

Educational (non-voting)

Popejoy Inc.
203 S. 10th St.
Fairbury, IL 61739
Phone: 815-692-4471
Fax: 815-692-4553

Installing Contractor


Website: http://www.popejoyinc.com
Pro Air Heating, Cooling, Electrical & Geothermal
2701 S. Main St.
Bloomington, IL 61704
Phone: 309-452-3415
Fax: 309-829-0600

Installing Contractor

Installer Looper Service Tech 
Website: http://www.proairhvac.com
Ridgeway Precision Mechanical Inc
280 W St Charles Rd
Villa Park, IL 60181
Phone: 630-279-4822
Fax: 630-279-4884

Installing Contractor

Installer Service Tech 
Website: http://www.RPMechanical.com
Rural Electric Convenience Cooperative
3793 W State Rt 104, PO Box 19
Auburn, IL 62615
Phone: 217-438-6197

Coop/Municipal Utility - Sm (< 5000 meters)


Website: http://www.recc.coop
Schuster Heating & Pump Co., Inc.
15674 Key City Lane
Peosta, IA 52068
Phone: (563) 582-2148
Fax: (563) 557-5188

Installing Contractor

Installer Service Tech 
Website: http://www.schusterpump.com
Scranton Heating & Cooling
868 975N Ave
Mt Sterling, IL 62353
Phone: 217-773-2626
Phone (alternate): 217-773-2751
Fax: 866-241-5209

Installing Contractor

Installer Service Tech 
Website: http://www.comfortman.com
Sheet Metal Workers' Local 265
205 Alexandra Way
Carol Stream, IL 60188
Phone: 630-668-0110
Fax: 630-668-2876

Educational (non-voting)


Website: http://www.smart265.org
Sierra Club
RR 2, Box 3A
Harrisburg, IL 62045
Phone: 618-477-7882

Friend of the Industry (non-voting)

Sierra Club, Illinois Chapter
70 E Lake St, Ste 1500
Chicago, IL 60601
Phone: 312-251-1680
Fax: 312-251-1780

Friend of the Industry (non-voting)


Website: http://illinois.sierraclub.org
Snell Plumbing And Heating
617 S Springfield
Virden, IL 62690
Phone: 217-965-3911

Installing Contractor

Looper 
Website: http://www.snellonline.com
Southwestern Illinois College
4950 Maryville Rd
Granite City, IL 62040
Phone: 618-797-7448
Fax: 618-797-1584

Educational (non-voting)


Website: http://www.swic.edu/hvacr/
Sub-Surface Geothermal, Inc.
1201 Carey Dr
McHenry, IL 60050
Phone: 847-815-1958
Phone (alternate): 815-363-0549

Drilling Contractor/Loop Installer

Looper 
Website: http://www.subsurfacegeothermal.com
Synergy Heating & Cooling, Ltd
1272 Turret Dr
Machesney Park, IL 61115
Phone: 815-977-5826

Installing Contractor

Looper 
Website: http://http:/www.synergyhvac.com
TCI Companies Inc.
405 State Route 117
Goodfield, IL 61742
Phone: 309-965-2057
Fax: 309-965-2376

Drilling Contractor/Loop Installer

Looper 
Website: http://www.tcicompaniesinc.com
The Hole Deal, Inc
PO Box 127
Goodfield, IL 61742
Phone: 309-273-4370

Drilling Contractor/Loop Installer

Looper 
Website: http://www.theholedealinc.com
Toennies Service Co
219 E Main St
Damiansville, IL 62215
Phone: 618-248-5130
Fax: 618-248-5812

Installing Contractor


Website: http://www.toenniesservice.com
Top Tec Heating, Cooling, Plumbing And Electrical, Inc.
345 E. Park Ave.
Libertyville, IL 60048
Phone: 847-362-0262
Fax: 847-362-0264

Installing Contractor

Installer 
Website: http://toptectoday.com
Tri-County Electric
3906 Broadway St.
Mt Vernon, IL 62864
Phone: 618-244-5151
Fax: 6182441496

Coop/Municipal Utility - Lg


Website: http://www.tricountycoop.com
University Of Illinois
1501 S Oak St
Champaign, IL 61820
Phone: 217-333-3227

Educational (non-voting)


Website: http://www.fs.uiuc.edu/planning/deferredmaintenance/
VA-geo (Virginia Geothermal Heat Pump Association)
12210 Fairfax Town Center, Suite 500
Fairfax, VA 22033
Phone: 630.660.4877

Friend of the Industry (non-voting)

WaterFurnace
9000 Conservation Way
Fort Wayne, IN 46809
Phone: 877-304-7255
Phone (alternate): 260-442-7246
Fax: 877-799-3965

Manufacturer


Website: http://www.waterfurnace.com
Wayne-White Counties Electric Cooperative
1501 W Main
Fairfield, IL 62837
Phone: 618-842-2196

Coop/Municipal Utility - Lg


Website: http://www.waynewhitecoop.com
Weidner Refrigeration, Inc
14450 Frazee Rd
Divernon, IL 62530
Phone: 217-628-3400

Installing Contractor

Installer Looper Service Tech