| Illingworth Engineering Co (Jacksonville, FL)
|
| Illuminating Enterprises Inc (Smithtown, NY)
|
| In Hot Water Systems (Eden, UT)
|
| Indeck Keystone Energy Inc (Erie, PA)
|
| Indeck Power Equipment Co (Matthews, NC)
|
| Independent Power Inc (Woodinville, WA)
|
| Indoor Air Quality (Littleton, CO)
|
| Industrial Incineration Inc (Rochester, NY)
|
| Industrial Solar Technology (Golden, CO)
|
| International Refractory Svc (Cleveland, OH)
|
| Interstate Gas & Oil Corp (Sudbury, MA)
|
| Invertech Alaska (Trapper Creek, AK)
|
| Iroquoian Supplies (Providence, RI)
|
| Ispc (Sapulpa, OK)
|
| Itt Standard Heat Transfer (Morton Grove, IL)
|
| J C Mottinger Assoc (Pittsburgh, PA)
|
| J W Patton Co (Shreveport, LA)
|
| James R Marker Sheet Metal (Knoxville, MD)
|
| Jedisol Systems Inc (Bell, CA)
|
| Jenkins Oil Burner Svc (Sandston, VA)
|
| John Gawler Sheet Metal (Belgrade, ME)
|
| Johnstone Supply (Chicago, IL)
|
| Johnstone Supply (Springdale, OH)
|
| Jon Robinson Solar & Plumbing (Mesa, AZ)
|
| Juniper Farms Bolton Oil Inc (Hudson, MA)
|
