| Name | Business | Address | City | State | Zipcode | Phone Number |
|
John Allen
|
Southwest IA REC
|
PO Box 391
|
Mt Ayr
|
IA
|
50854
|
(641)464-2244
|
|
Steve Anderson
|
Northern Geothermal Corp
|
1314 Mockingbird Lane
|
Boone
|
IA
|
50036
|
(515) 432-0120
|
|
Gregory Anderson
|
Prairie Energy Cooperative
|
PO Box 353
|
Clarion
|
IA
|
50525
|
(515) 532-2805
|
|
Don Probasco
|
Wayne Dennis Supply Co.
|
319 New York Avenue
|
Des Moines
|
IA
|
50313
|
(515) 233-3339
|
|
Kenneth Armstrong
|
Armstrong Heating & AC, Inc
|
220 South 14th
|
Washington
|
IA
|
52353
|
(319) 653-6403
|
|
Chris Arnold
|
Arnold Geothermal Drilling
|
PO Box 216
|
LeClaire
|
IA
|
52753
|
(309) 496-2665
|
|
Curtis Atkins
|
Waverly Light and Power
|
PO Box 329
|
Waverly
|
IA
|
50677
|
(319) 352-6251
|
|
David Atwell
|
Atwell Heating & Air Conditioning
|
619 Marquette St
|
Davenport
|
IA
|
52802
|
(563) 323-5110
|
|
Tom Balster
|
Alliant Energy
|
PO Box 351
|
Cedar Rapids
|
IA
|
52406
|
(319) 786-4177
|
|
James Bear
|
Tri-County Refrigeration
|
PO Box 67
|
Plano
|
IA
|
52581
|
(641) 649-2928
|
|
Doug Beaver
|
Beaver Htg & A.C. , Inc.
|
2339 McLaffey Bridge Rd NE
|
North Liberty
|
IA
|
52317
|
(319)626-2565
|
|
Scott Behrends
|
GeoSource, Inc
|
PO Box 347
|
Monticello
|
IA
|
52406
|
(319)465-2030
|
|
Larry Beilke
|
Humboldt Co. REC
|
1210 13th St N
|
Humboldt
|
IA
|
50548
|
(515) 332-1616
|
|
Randy J. Bell
|
Kertel's Plumbing & Heating
|
102 3rd Ave NE
|
Farley
|
IA
|
52046
|
(563) 744-3754
|
|
Jeffrey Benz
|
City Supply Corp
|
2326 Bell Avenue
|
Des Moines
|
IA
|
50321
|
(515) 288-3211 X 318
|
|
Ronald Billmeyer
|
Advantage Sheet Metal Inc
|
18 E 18th Street
|
Dubuque
|
IA
|
52001
|
(563) 556-4822
|
|
John Bope
|
Water Furnace, Inc
|
5216 Magnolia St
|
Omaha
|
NE
|
68137
|
(402) 490-1375
|
|
Bill Brandt
|
Brandt Heating & AC
|
1203 Highland Ct
|
Iowa City
|
IA
|
52240
|
(319)338-3637
|
|
Keith Brown
|
Kapaun & Brown
|
PO Box 399
|
Marshalltown
|
IA
|
50158
|
(641)753-3563
|
|
Bill Budd
|
Brilco Inc
|
4211 A Lower Beaver Rd
|
Des Moines
|
IA
|
50310
|
(515)274-2528
|
|
Dean Buendorf
|
Terra-Therm Inc.
|
PO Box 42
|
New Richland
|
MN
|
56072
|
(507)463-3213
|
|
Richard Burhans
|
Rebeath Product Inc
|
PO Box 139
|
Truro
|
IA
|
50257
|
(641) 765-4234
|
|
Randy D. Caudle
|
Randy's Plumbing & Heating
|
Box 250
|
Ellsworth
|
IA
|
50075
|
(515)836-4452
|
|
Dan Clark
|
Lister Industries
|
300 NW 48 Place
|
Des Moines
|
IA
|
50313
|
(515) 244-3149
|
|
Cris Collins
|
Gus Pech Mfg., Co. Inc
|
PO Box 96
|
Le Mars
|
IA
|
51031
|
(712) 546-4145
|
|
Frank Curtis
|
Plumb Supply Co
|
PO Box 4558
|
Des Moines
|
IA
|
50306
|
(515)262-9511
|
|
Bryan De Jong
|
Baxter Oil Company
|
312 E Buchanan St
|
Baxter
|
IA
|
50028
|
(641)227-3105
|
|
John P. (Jack) DiEnna
|
Geothermal Heat Pump Consortium, Inc
|
1050 Connecticut Ave NW Ste 1000
|
Washington
|
DC
|
20036
|
(202)558-7175
|
|
Howard Drees
|
Drees Htg & Plbg
|
PO Box 585
|
Carroll
|
IA
|
51401
|
(712)792-2868
|
|
Brent Dvorsky
|
BBB Construction Services
|
PO Box 143
|
Solon
|
IA
|
52333
|
(319) 430-0737
|
|
Norm Fandel
|
Midland Power Cooperative
|
1005 E. Lincolnway
|
Jefferson
|
IA
|
50129
|
(515) 386-4111
|
|
Gregory Gabrilson
|
Gabrilson Indoor Climate Solutions
|
5442 Carey Ave
|
Davenport
|
IA
|
52807
|
(563) 386-9000
|
|
Robert Gage
|
Gage & Gage Pub Htg Inc
|
607 Hwy 150 So.
|
West Union
|
IA
|
52175
|
(563)422-5691
|
|
Brian Gage
|
Mick Gage Plumbing & Heating Inc
|
PO Box 244
|
New Hampton
|
IA
|
50659
|
(641)394-4985
|
|
Erich Gamm
|
West Union Trenching
|
10715 Harding Rd
|
West Union
|
IA
|
52175
|
(563) 422-5900
|
|
Gary Gandlach
|
Geostem Inc
|
11620 Ribbit Run Rd Lot 32
|
Ottumwa
|
IA
|
52501
|
(641) 521-5570
|
|
David Gilmore
|
Linn County REC - (Prairie Star)
|
PO Box 69
|
Marion
|
IA
|
52302
|
(319)377-1587
|
|
Michael Golightly
|
GeoSystem
|
4132 70 Street
|
Urbandale
|
IA
|
50322
|
(515)251-6374
|
|
Buzz Graham
|
Colony Heating & AC
|
2224 - 16th Avenue, S.W.
|
Cedar Rapids
|
IA
|
52404
|
(563)364-4755
|
|
John Gruss
|
Schultz Plumbing & Heating
|
PO Box274
|
Greenfield
|
IA
|
50849
|
(641)343-7134
|
|
Ron Gulley
|
Bill's Heating & Air Conditioning
|
3820 27 Street
|
Moline
|
IL
|
61265
|
(309)762-9396
|
|
James Hadley
|
Benjamin Franklin Plumbing
|
PO Box 250
|
Richland
|
IA
|
52585
|
(319)456-2721
|
|
Ken Hamilton
|
Ditch Witch - Iowa, Inc
|
PO Box 600
|
Slater
|
IA
|
50244
|
(515) 685-3521
|
|
Roger Hammen
|
Calhoun County REC
|
1015 Tonawanda
|
Rockwell City
|
IA
|
50579
|
(712) 297-7112
|
|
Diane Hansen
|
Sac County REC
|
601 E. Main St
|
Sac City
|
IA
|
50583
|
(712) 662-4275
|
|
Diane Hanson
|
Alliant Energy
|
8000 Chauvenelle Rd
|
Dubuque
|
IA
|
52002
|
(563)587-4552
|
|
John Heilman
|
Clarke Electric Coop.
|
PO Box 161
|
Osceola
|
IA
|
50213
|
(641)342-2173
|
|
Henry Herwig
|
HJ Ltd Heating & A/C
|
PO Box 5370
|
Coralville
|
IA
|
52241
|
(319) 351-7214
|
|
Rex Hoffman
|
BHS Services LLC
|
46432 Applewood Rd
|
Henderson
|
IA
|
51541
|
(712) 767-2715
|
|
Lonny Hoover
|
Illinois Geothermal Engineering, Inc
|
PO Box 17400
|
Urbana
|
IL
|
61803
|
(217) 344-6154
|
|
Dan Huffman
|
Grundy Co. REC
|
102 East G Ave
|
Grundy Center
|
IA
|
50638
|
(319) 824-5251
|
|
Brian Hughes
|
Houghton Chemical Corporation
|
105 S Lancer Ct
|
Long Grove
|
IA
|
52756
|
(617) 548-7836
|
|
Tresa Hussong
|
Iowa Lakes Electric Cooperative
|
702 South 1st St
|
Estherville
|
IA
|
51334
|
(712) 362-7870
|
|
Gary Jacobs
|
Hydro Pump Co
|
3616 South 138th St
|
Omaha
|
NE
|
68144
|
(800) 728-0878
|
|
Kris Jeppesen
|
GHP Systems, Inc
|
1000 N 32nd Ave
|
Brookings
|
SD
|
57006
|
(605) 697-7869
|
|
Steve Johnson
|
Johnson Comfort Systems, Inc
|
P.O. BOX 215
|
Lime Springs
|
IA
|
52155
|
(563)566-2346
|
|
Lynn Johnson
|
Johnsons Heating & Cooling
|
939 County Home Rd
|
Springville
|
IA
|
52336
|
(319)854-6971
|
|
John Johnston
|
Glidden REC
|
28725 Highway 30
|
Glidden
|
IA
|
51443
|
(712) 659-3649
|
|
Steve Jurshak
|
Simco Drilling Equipment
|
PO Box 448
|
Osceola
|
IA
|
50213
|
(641) 342-2166
|
|
Steve Kajewski
|
Algona Municipal Utilities
|
104 W Call St
|
Algona
|
IA
|
50511
|
(515) 295-3584
|
|
Joseph Kapaun
|
Kapaun Consulting Engineers, P.C.
|
PO Box 537
|
Hudson
|
IA
|
50643
|
(319)233-6521
|
|
Kevin Kasperbauer
|
Kasperbauer Service Inc
|
3640 L Ave
|
Vail
|
IA
|
51465
|
(712) 677-2261
|
|
Franklin Kinkade
|
Kinkade Sales
|
1383 190th Street
|
Creston
|
IA
|
50801
|
(641)782-2614
|
|
Curtis Klaassen
|
IA Energy Center/E R Station
|
2006 S. Ankeny Blvd.
|
Ankeny
|
IA
|
50021
|
(515)965-7055
|
|
Kyl Knobbe
|
Knobbe Plbg. & Htg.
|
605 W 6th St
|
Carroll
|
IA
|
51401
| |