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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
360 Energy Group, LLC
8770 W Bryn Mawr Ave
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
A Polar Bear Air, LLC
1210 Bloods Point Rd
Cherry Valley, IL 61016
Phone: 815-544-5424

Installing Contractor


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

Supplier/Distributor


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

Coop/Municipal Utility - Lg

Advanced Geothermal Plumbing & Heating LLC
326 Wilcox Ave
Elgin, IL 60123
Phone: 847-695-1657
Fax: 847-628-9511

Installing Contractor

Looper 
Website: http://www.advancedgeothermal.com
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
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 S 6th Frontage Rd E
PO 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
Chief / Bauer Service Experts
520 N Hickory St
Champaign, IL 61820
Phone: 217-689-2469

Installing Contractor


Website: http://www.chiefbauer.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.
2801 Woodard Dr, Ste 105
Columbia, MO 65202
Phone: 573-874-9455
Fax: 573-874-9474

Designer/Engineer/Architect


Website: http://www.cmeng.com
College Of DuPage HVACR Program
425 22nd St
Glen Ellyn, IL 60137
Phone: 630-942-3068

Educational (non-voting)

Collins Plumbing, Heating & Cooling, Inc.
1023 W Dorlan Ave, Ste A
Springfield, IL 62702
Phone: 217-793-8031
Fax: 217793-8033

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 NE 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

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

Installing Contractor


Website: http://www.dc-heatingandcooling.com
Don - Martin Heating And Cooling Inc.
3500 N Newville Rd
Janesville, WI 53545
Phone: 608-758-9882
Phone (alternate): 608-295-8269
Fax: 608-758-9842

Installing Contractor

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

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
Edgar County Public Health Department
502 Shaw Ave
Paris, IL 61944
Phone: 217-465-2212
Phone (alternate): 217-465-2212
Fax: 217-465-1121

Educational (non-voting)

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


Website: http://www.element-co.com
Elevate Energy
322 S Green St
Chicago, IL 60607
Phone: 773-328-7013

Associate


Website: http://www.elevateenergy.org
Elite Heating And Cooling LLC
890 Sommerset
Carol Stream, IL 60188
Phone: 630-462-9082
Fax: 630-365-1189

Installing Contractor

Enertech Global
2506 W Elm St
Greenville, IL 62246
Phone: 888-436-3783
Fax: 618-664-4597

Manufacturer

Ernst Heating & Cooling
202 W 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
G.O. Loop
W11366 Blanecae Rd.
Randolph, WI 53956
Phone: 920-326-2050
Fax: 920-326-2051

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


Website: http://www.garberheating.com
Geothermal Eco Options, Inc
407 2nd Ave., SW
Cresco, IA 52136
Phone: 563-382-0300
Fax: 563-382-0305

Drilling Contractor/Loop Installer

Looper 
Website: http://www.geo-inc.com
Geothermal Energy Solutions, Inc
3000 Dundee Rd, Ste 301
Northbrook, IL 60062
Phone: 847-586-0570
Phone (alternate): 847-275-6748
Fax: 847-423-6101

Installing Contractor


Website: http://www.geotsolutions.com
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
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
GVS Contracting
87 Bynum Rd
Ozark, IL 62972
Phone: 618-924-0429
Phone (alternate): 618-551-2852

Drilling Contractor/Loop Installer

Hanson Professional Services
1525 S Sixth St
Springfield, IL 62703
Phone: 217-747-9215
Fax: 217-788-2503

Designer/Engineer/Architect


Website: http://www.hanson-inc.com
Hardesty Heating & Cooling, Inc
410 W Bicentennial Dr
Leroy , IL 61770
Phone: 309-962-4328
Fax: 309-962-5093

Mechanical Contractor

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

Drilling Contractor/Loop Installer

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

Installing Contractor


Website: http://www.hinrichsenheating.com
Hot Water Products, Inc
7500 N 81st St
Milwaukee, WI 53223
Phone: 877-377-0011

Associate


Website: http://www.hotwaterproducts.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


Website: http://www.hoveln.com
Illinois Central College
1 College Dr
East Peoria, IL 61635
Phone: 309-694-5293

Educational (non-voting)

Illinois Geothermal Engineering, Inc.
1803 Amber Ln

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

Designer/Engineer/Architect

Illinois State University

Normal, IL 61761

Educational (non-voting)

Ingle Electric Service-Heating & Cooling
401 S IL Rte 180, PO BOX 145
Williamsfield, IL 61489
Phone: 309-639-2400

Installing Contractor


Website: http://ingleelectric.com
Iroquois County Public Health Department
1001 E Grant St
Watseka, IL 60970
Phone: 815-432-2483
Fax: 815-432-2198

Friend of the Industry (non-voting)

J & R Herra, Inc
210 E. North St.
Elburn, IL 60119
Phone: 630-365-6266

Installing Contractor


Website: http://www.jrherrageothermal.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
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
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/
Joe Daviess Geothermal, LLC
N8224 CR J
New Glarus, WI 53574
Phone: 815-858-4895

Installing Contractor

John Freitag
176 Maple Grove
Springfield, IL 62712

Phone (alternate): 217-8364667

Friend of the Industry (non-voting)

KCH Mechanical, Inc
15500 E State Hwy 33
Teutopolis, IL 62467
Phone: 217-347-5755
Fax: 217-347-5715

Installing Contractor

Looper 
Kelly Construction & Design, Ltd
2714 W Harrison St
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
L & H Services Inc
1140 S Dixie Hwy, Ste 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 & A/C
1398 S Armstrong Ave
Freeport, IL 61032
Phone: 815-232-4519
Fax: 815-235-1444

Installing Contractor


Website: http://www.lemanskihvac.com
Little Heating And A/C Inc
25 West Cherry
25 W Cherry
Winchester, IL 62694
Phone: 217-742-3332
Fax: 217-742-8112

Installing Contractor

Loescher Heating And AC
1860 S Walnut Rd
Freeport, IL 61032
Phone: 815-232-6166

Mechanical Contractor


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

Installing Contractor


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

Installing Contractor


Website: http://www.mcdonaldrenewableenergy.com
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
Meyer Climate Control
1220 SW Washington St
Peoria, IL 61602
Phone: 309-673-6355
Phone (alternate): 309-346-3401
Fax: 309-670-1144

Installing Contractor

Midwest Energy Efficiency Alliance
20 N Wacker Dr
Chicago, IL 60606
Phone: 312-587-8390

Friend of the Industry (non-voting)


Website: http://www.mwalliance.org
Midwest Environmental Products
10435 Seymour Ave
Franklin Park, IL 60131
Phone: 630-227-0600
Fax: 630-227-0533

Associate


Website: http://www.mephvac.com/
Mundelein High School
1350 W Hawley St
Mundelein, IL 60060
Phone: 847-949-2200
Phone (alternate): 847-456-1877
Fax: 847-949-0599

Educational (non-voting)


Website: http://www.d120.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
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
507 W Golf Rd
Arlington Heights, IL 60005
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 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/
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
Ridgeway Precision Mechanical Inc
280 W St Charles Rd
Villa Park, IL 60181
Phone: 630-279-4822
Fax: 630-279-4884

Installing Contractor


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

Drilling Contractor/Loop Installer

Scranton Heating & Cooling
868 975N Ave
Mt Sterling, IL 62353
Phone: 217-773-2626
Phone (alternate): 217-773-2751

Installing Contractor

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

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 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 Heating And Cooling
617 S Springfield
Virden, IL 62690
Phone: 217-965-3911

Installing Contractor

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

Coop/Municipal Utility - Lg


Website: http://www.sweci.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/
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

Looper 
Sub-Surface Geothermal Inc,
1201 Carey Dr
McHenry, IL 60050
Phone: 847-815-1958
Phone (alternate): 815-363-0549
Fax: 815-363-7713

Drilling Contractor/Loop Installer


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

Installing Contractor


Website: http://http:/www.synergyhvac.com
T&A Excavating
2394 Hallidayboro Rd
Elkville, IL 62932
Phone: 618-534-6104

Drilling Contractor/Loop Installer

Looper 
The Hole Deal, Inc
PO Box 127
Goodfield, IL 61742
Phone: 309-222-5265

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
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

Unimin Corporation
258 Elm St
New Canaan, CT 6880
Phone: 203-966-8880
Phone (alternate): 203-442-2320
Fax: 203-972-1927

Supplier/Distributor


Website: http://www.unimin.com
Vermeer Midwest
120 E Martin Dr
Goodfield, IL 61742
Phone: 309-467-3716

Supplier/Distributor


Website: http://www.vermeermidwest.com
Wabash Valley Power
722 N High School Rd
Indianapolis, IN 46214
Phone: 317-481-2800

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

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

Coop/Municipal Utility - Sm (< 5000 meters)

Yard Heating And Cooling
100 S Spressor St
Taylorville, IL 62568
Phone: 217-824-4737

Installing Contractor