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

Designer/Engineer/Architect


Website: http://www.2010engineering.com
360 Energy Group, LLC
8770 W Bryn Mawr AV
STE 1300
Chicago, IL 60631
Phone: (312)265-3971
Phone (alternate): (800)401-0360
Fax: (312)264-0657

Designer/Engineer/Architect


Website: http://www.360eg.com
AC Systems, Inc.
11724 Adie Road
Maryland Hts, MO 63043
Phone: 314-569-1000
Fax: 314-569-0532

Supplier/Distributor


Website: http://acsystemsinc.net
Adams Electric
P.O. Box 247
Camp Point, IL 62320
Phone: 217-593-7701

Coop/Municipal Utility - Lg

Advanced Geothermal Plumbing & Heating LLC
9N776 Kendall Rd.
Elgin, IL 60124
Phone: 847-695-1657
Fax: 847-628-9511

Installing Contractor

Looper 
Website: http://www.advancedgeothermal.com
Architectural Consulting Engineers
837 Hayes Avenue
Oak Park, IL 60302
Phone: 708-524-0272

Designer/Engineer/Architect

Area Mechanical
821 1st Ave
Rockford, IL 61104
Phone: 815-964-2070
Fax: 815-964-2071

Mechanical Contractor


Website: http://www.areamechanical.com
Association Of Illinois Electric Cooperatives
6460 South 6th Frontage Road East
Box 3787
Springfield, IL 62708
Phone: 217-529-5561

Coop/Municipal Utility - Lg


Website: http://www.aiec.coop
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
Clinton County Electric Cooperative
475 N. Main St.
PO Box 40
Breese, IL 62230
Phone: 618-526-7282
Fax: 618-526-4561

Coop/Municipal Utility - Sm (< 5000 meters)


Website: http://www.cceci.com
CM Engineering, Inc.
700 Cherry Street, Suite C
Columbia, MO 65201
Phone: 573-874-9455
Fax: 573-874-9474

Designer/Engineer/Architect


Website: http://www.cmeng.com
Coles-Moultrie Electric Cooperative
PO Box 709
Mattoon, IL 61938
Phone: 217-235-0341

Coop/Municipal Utility - Lg

Collins Plumbing, Heating & Cooling, Inc.
1023 W Dorlan Ave., Suite A
Springfield, IL 62702
Phone: 217-793-8031

Mechanical Contractor

ComEd
3 Lincoln Center
Oakbrook Terrace, IL 60181

Phone (alternate): 630-437-3386

Investor-Owned Utility


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

Supplier/Distributor


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

Coop/Municipal Utility - Lg

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
D&C Heating And Cooling
603 N. Market
Marion, IL 62959
Phone: 618-997-6577

Installing Contractor


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

Installing Contractor


Website: http://www.designairhvac.com
Duden & Silver INC
103 North Main St.
Gifford, IL 61847
Phone: 217-568-7954
Fax: 2175687305

Installing Contractor

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 Coop
330 W. Ottawa St
Paxton, IL 60957
Phone: 800-824-5102
Phone (alternate): 217-379-0446
Fax: 217-379-2936

Coop/Municipal Utility - Lg


Website: http://www.eiec.coop
Egyptian Electric
PO Box 38
Steeleville, IL 62288
Phone: 618-684-2143
Phone (alternate): 618-965-3434
Fax: 618-965-3111

Coop/Municipal Utility - Lg

Electro Electric, Inc
904 N Main
Flora, IL 62839
Phone: 618-662-4520
Fax: 618-662-8189

Installing Contractor


Website: http://electro electric.com
Element Energy Consulting
108 S. Seminary Ave.
Park Ridge, IL 60068
Phone: 312-405-8401

Designer/Engineer/Architect

Elevate Energy
322 S. Green St.
Chicago, IL 60607
Phone: 773-328-7013

Associate


Website: http://www.elevateenergy.org
Enertech Global
2506 W. Elm Street
Greenville, IL 62246
Phone: 888-436-3783
Fax: 618-664-4597

Manufacturer

Ernst Heating & Cooling
202 West State St.
Hamel, IL 62046
Phone: 618-633-2244
Phone (alternate): 618-633-2848
Fax: 618-633-2442

Installing Contractor


Website: http://www.ernstheating.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


Website: http://www.garberheating.com
Geothermal Eco Options, Inc.
PO Box 401.
Decorah, IA 52101
Phone: 563-382-0300
Fax: 563-382-0305

Drilling Contractor/Loop Installer


Website: http://www.geo-inc.com
Great Lakes Geothermal
1151 Atlantic Dr., Ste. 4
West Chicago, IL 60185
Phone: 630-231-5685

Drilling Contractor/Loop Installer

Looper 
Website: http://www.greatlakesgeothermal.com
Hanson Professional Services
1525 S. Sixth St.
Springfield, IL 62703
Phone: 217-747-9443

Designer/Engineer/Architect

Harriss Geothermal Drilling
203 Eastlawn Street
New Athens, IL 62264
Phone: 618-475-0007
Phone (alternate): cell 618-806-5870
Fax: 618-475-0007

Drilling Contractor/Loop Installer

Hinrichsen Heating And Air Conditioning
255 N. Eureka St.
Goodfield, IL 61742
Phone: 309-965-2604

Installing Contractor

Hollaway-Meyer's Inc.
950 165th St
Hammond, IN 46324
Phone: 219-932-2171
Phone (alternate): 708-895-8226
Fax: 219-932-3334

Drilling Contractor/Loop Installer, Mechanical Contractor

Looper 
Website: http://http;//www.earththermal.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.
Thomasboro, IL 61878
Phone: 217-643-2125

Installing Contractor


Website: http://www.hoveln.com
Illinois Geothermal Engineering, Inc.
1803 Amber Lane

Urbana, IL 61802
Phone: 217-344-6154
Phone (alternate): 847-975-1935
Fax: 847-589-8565

Designer/Engineer/Architect

Illinois Geothermal Supply Company
1308 NE Adams St.
Peoria, IL 61603
Phone: 1-800-826-2737
Fax: 309-674-1532

Supplier/Distributor


Website: http://www.illinoisgeosupply.com
Illinois Rural Electric Cooperative
2 S. Main
Winchester, IL 62694
Phone: 217-742-3128

Coop/Municipal Utility - Lg

Illinois State University

Normal, IL 61761

Educational (non-voting)

Imbert International
7030 N. Austin Ave.
Niles, IL 60714
Phone: 847-588-3170

Supplier/Distributor


Website: http://www.imbertcorp.com
J & R Herra, Inc.
250 W Nebraska St.
P.O. Box 8032
Elburn, IL 60119
Phone: 630-365-6266

Installing Contractor

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
Jansens Heating And Air
11984 E US Highway 40
Effingham, IL 62401
Phone: 217-347-5223
Fax: 217-342-3004

Installing Contractor


Website: http://www.jansensheating.com
JCCI - Jansen Cable Construction Inc.
16766 N. US Hwy. 45
Effingham, IL 62401
Phone: 217-347-4141

Installing Contractor

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

Coop/Municipal Utility - Lg


Website: http://www.jocarroll.com/
Just In Time Heating, A/C & Plumbing
115 S Wolfe St
PO Box 53
Sandwich, IL 60548
Phone: 815-570-2244
Phone (alternate): 630-553-5302
Fax: 815-570-4180

Installing Contractor


Website: http://www.justintimeheating.com
Kelly Construction & Design, Ltd.
2714 West Harrison Street
Chicago, IL 60612
Phone: 773-533-1110
Fax: 773-533-1112

Designer/Engineer/Architect


Website: http://www.kellyconstructiondesign.com
Kickapoo Drilling Company LLC
405 W. Main St.
Downs, IL 61736
Phone: 309-378-4003
Phone (alternate): 309-378-4540
Fax: 309-378-4099

Drilling Contractor/Loop Installer


Website: http://www.kickapoodrilling.com
Koch Air LLC
3141 Riverport Tech Center,
Maryland Heights, MO 63043
Phone: 314-595-7640

Supplier/Distributor

L & H Services Inc.
1140 S. Dixie Hwy. Suite 1
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
1398 S Armstrong Av
Freeport, IL 61032
Phone: 815 232 4519
Fax: 815 235 1444

Installing Contractor


Website: http://Www.lemanskihvac.com
MB Heating And Cooling, Inc.
1001 E. Miller St.
Springfield, IL 62702
Phone: 217-544-4328

Installing Contractor

McDonough Power Cooperative
1210 W. Jackson St.
Box 352
Macomb, IL 61455
Phone: 309-833-2101

Coop/Municipal Utility - Lg


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

Coop/Municipal Utility - Sm (< 5000 meters)

Mundelein High School
1350 West Hawley Street
Mundelein, IL 60060
Phone: 8479492200
Phone (alternate): 8474561877
Fax: 8479490599

Educational (non-voting)


Website: http://Www.d120.org
Neuhaus Heating & A/C, Inc.
10235 S. Old Route 66
Litchfield, IL 62056
Phone: 217-324-2818
Fax: 217-324-2881

Installing Contractor

Looper 
Website: http://www.neuhaushvac.com
New Age Technologies Inc.
434 North Mill Street
Nashville, IL 62263
Phone: 618-314-4969
Phone (alternate): 618-327-8594
Fax: 618-464-0020

Drilling Contractor/Loop Installer, Installing Contractor

NORESCO
2800 S. River Road, Ste. 400
Des Plaines, IL 60018
Phone: 847-375-2050
Phone (alternate): 847-375-2070
Fax: 847-391-9738

Designer/Engineer/Architect


Website: http://www.noresco.com
Norris Electric Cooperative
8543 N. Hwy 130
Newton, IL 62448
Phone: 618-783-8765
Fax: 618-783-3673

Coop/Municipal Utility - Lg


Website: http://www.norriselectric.com
Optimal Energy LLC
2910 North Arlington Heights Road
Arlington Heights, IL 60004
Phone: 847-368-8484

Designer/Engineer/Architect

Peters Heating And Air Conditioning Inc.
4520 Broadway
Quincy, IL 62305
Phone: 217-222-1368
Phone (alternate): 217-222-1369
Fax: 217-222-1088

Mechanical Contractor


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

Educational (non-voting)


Website: http://www.ualocal501.org/
Popejoy, Inc.
203 S. 10th St.
Fairbury, IL 61739
Phone: 815-692-4471

Installing Contractor

Porter Pipe & Supply Co.
401 S. Rohlwing Rd.
Addison, IL 60101
Phone: 630-543-8145
Fax: 630-543-6830

Supplier/Distributor


Website: http://www.porterpipe.com
Prairie Power, Inc.
P.O. Box 610
Jacksonville, IL 62651
Phone: 217-245-6161

Coop/Municipal Utility - Lg

Pro Air Heating, Cooling, Electrical & Geothermal
106 Oak Creek Plaza
Bloomington, IL 61704
Phone: 309-452-3415
Fax: 309-829-0600

Installing Contractor

Looper 
Website: http://www.proairhvac.com
R & H Plumbing, Heating & Electric
123 N Main
Altamont, IL 62411
Phone: 618-483-6159

Installing Contractor

Renew Mechanical
Box 118
Monee, IL 60449
Phone: 773-257-3639

Installing Contractor


Website: http://www.RenewMechanical.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
Sams Well Drilling Inc
N9935 Pleasant Road
Box 150
Randolph, WI 53956
Phone: 920-326-5193

Installing Contractor

Scranton Heating & Cooling
RR 3 Box 6A
Mt Sterling, IL 62353
Phone: 217-773-2626
Fax: 217-773-2751

Installing Contractor


Website: http://www.comfortman.com
Shelby Electric Cooperative
PO Box 560
1355 HWY 128
Shelbyville, IL 62565
Phone: 217-774-3986
Phone (alternate): 2177743986

Coop/Municipal Utility - Lg


Website: http://www.shelbyelectric.coop
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 Street, Suite 1500
Chicago, IL 60601
Phone: 312-251-1680
Fax: 312-251-1780

Friend of the Industry (non-voting)


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

Installing Contractor

Looper 
Website: http://www.snellhvac.com
Soil To Sun Of Central Illinois
229 N 1st Ave
Morton, IL 61550
Phone: 3092005010
Phone (alternate): 3093601011

Friend of the Industry (non-voting)


Website: http://www.soiltosun.com/309
Southwestern Electric Cooperative
525 US Rt. 40
PO Box 549
Greenville, IL 62230
Phone: 618-664-1025

Coop/Municipal Utility - Lg

Spoon River Electric Cooperative
P.O. Box 340
930 South Fifth Avenue
Canton, IL 61520
Phone: 309-647-2700
Fax: 309-647-7354

Coop/Municipal Utility - Sm (< 5000 meters)

Spoon River Mechanical Services
405 1/2 E. Linn St.

Canton, IL 61520
Phone: 309-647-2700
Fax: 309-647-7354

Installing Contractor

Stevens HVAC
301 S. 7th
Quincy, IL 62301
Phone: 217-222-5220

Installing Contractor

Sub-Surface Geothermal Inc,
1201 Carey Dr
McHenry, IL 60050
Phone: 8478151958
Phone (alternate): 8153630549
Fax: 8153637713

Drilling Contractor/Loop Installer


Website: http://subsurfacegeothermal.com
Synergy Heating & Cooling, Ltd.
6260 E. Riverside Blvd # 164
311 Lafayatte, Rockford, IL 61107 (Physical Add)
Loves Park, IL 61111
Phone: 815-977-5826

Installing Contractor


Website: http://http:/www.synergyhvac.biz
T & G Plumbing
6916 Foss Rd.
Monee, IL 60449
Phone: 708-603-0577

Drilling Contractor/Loop Installer

The GEO Exchange Organization
1050 Connecticut Ave NW Suite 1000
Washington, DC 20036
Phone: 1-888-255-4436

Friend of the Industry (non-voting)


Website: http://www.geoexchange.org
The Habegger Corporation
2220 W Altorfer Drive
Peoria, IL 61615
Phone: 309-691-4328
Phone (alternate): 309-691-4900
Fax: 309-693-2665

Supplier/Distributor


Website: http://www.habeggercorp.com
The Hole Deal, Inc
P.O. Box 127
Goodfield, IL 61742
Phone: 309-222-5265

Drilling Contractor/Loop Installer

Looper 
Website: http://www.theholedealinc.com
Thermal Imaging Services
198 N. Robinson St.
Lewistown, IL 61542
Phone: 309-547-5000
Fax: 309-547-5005

Associate


Website: http://www.improvinghomeperfomance.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
Tri County Irrigation And Plumbing
PO Box 290
Goodfield, IL 61742
Phone: 309-965-2057
Fax: 309-965-2376

Drilling Contractor/Loop Installer

Looper 
Website: http://www.tricountyirrigation.com
Tri-County Electric
PO Box 309
Mt Vernon, IL 62864
Phone: 618-244-5151

Coop/Municipal Utility - Lg

Trico Mechanical
1980 W. US Hwy 30, Suite 11
Sugar Grove, IL 60554
Phone: 630-466-3662

Mechanical Contractor

Vermeer Midwest
120 E Martin Dr
Goodfield, IL 61742
Phone: 309-467-3716

Associate


Website: http://www.vermeermidwest.com
Wabash Valley Power
722 North High School Road
Indianapolis, IN 46214
Phone: 3174812800

Coop/Municipal Utility - Lg


Website: http://www.wvpa.com
WaterFurnace
927 Comstock Station
Saint Peters, MO 63376
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

Weidner Refrigeration, INC
14450 Frazee Rd.
Divernon, IL 62530
Phone: 217-628-3400

Installing Contractor

Installer Looper Service Tech 
Western Illinois Electrical Coop
Box 338
Carthage, IL 62321
Phone: 217-353-7312

Coop/Municipal Utility - Sm (< 5000 meters)

Wm. J. Kraus & Sons, Inc.
1012 Main St.
Keokuk, IA 52632
Phone: 319-524-3714
Fax: 319-524-3264

Installing Contractor


Website: http://www.krausandsons.com
Yard Heating And Cooling
100 S. Spressor St.
Taylorville, IL 62568
Phone: 217-824-4737

Installing Contractor