| 32041 | United States | Codella Solar & Associates, Inc. | 2300 Alessandro Dr. #106, Ventura, CA 93001 | +1 805 3027867 | https://codellasolar.com | Enphase Energy, Inc., SolarEdge Technologies, Ltd. | |
| 32042 | United States | Cogentrix Energy Power Management, LLC | 13860, Ballantyne Corporate Place, Suite 300, Charlotte, NC, 28277 | +1 704 5253800 | www.cogentrix.com | | |
| 32043 | United States | Coghlin Electrical Contractors, Inc. | 100, Prescott Street, Worcester, Massachusetts, 01605 | +1 508 7930390 | www.coghlin.com | | |
| 32044 | United States | Colantonio Inc | 16 Everett Street, Holliston, MA 01746 | +1 508 4298666 | www.colantonioinc.com | | |
| 32045 | United States | Colburn Electric | 829, West Elgin Street, Broken Arrow, OK, 74012-2426 | +1 918 2518765 | colburnelectric.com | | |
| 32046 | United States | Colby Roofing & Sheet Metal Co. | Wilmington, North Carolina | +1 910 6172818 | www.colbyroofing.com | | |
| 32047 | United States | Coldwell Electric | 253D, Worcester Rd., Charlton, MA, 01507 | +1 978 8752938 | coldwellelectric.com/ | | |
| 32048 | United States | Coldwell Solar | 500 Menlo Dr #100, Rocklin, CA 95765 | +1 888 7055055 | coldwellsolar.com | | |
| 32049 | United States | Coleman Roof LLC | 2708 S Ruby Ave, Gonzales, LA, 70737 | +1 225 3797663 | www.colemanroof.com | | |
| 32050 | United States | Colgan Solar, LLC | 16, Pickwick Ln, Lincoln University, PA, 19352 | +1 215 8374054 | www.colgansolar.com | | |
| 32051 | United States | Collaborative Solar, LLC | 185 Eastbrook Drive Boone, NC 28607 | +1 704 4382222 | https://www.collaborativesolar.com | Suniva Inc. | SolarEdge Technologies, Ltd. |
| 32052 | United States | Collin Taylor, Inc. | 1442 E. Lincoln Ave., Suite 101, Orange, CA, 92865 | +1 714 9975822 | collintaylorinc.com | | |
| 32053 | United States | Collins Electric Co. | 53 Second Ave. Chicopee, MA 01020-4697 | +1 413 5929221 | www.collinselectricco.com | | |
| 32054 | United States | Collins Electrical Co, Inc. | 3412 Metro Dr., Stockton, CA 95215 | +1 209 4663691 | www.collinselectric.com | | |
| 32055 | United States | Collins Roofing Inc. | 3 East State St. Lehi, UT 84043 | +1 801 3418071 | collinsroofinginc.com | | |
| 32056 | United States | Colonial RV | 1121 Route 88 Lakewood, NJ 08701 | +1 800 2659019 | https://www.colonialrv.com | | |
| 32057 | United States | Colorado Continental Roofing & Solar, Inc. | 10464 W 44th Ave. #2B, Wheat Ridge, CO 80033 | +1 720 7266775 | coloradocontinental.us | | |
| 32058 | United States | Colorado Lighting | 1831 E. 73RD Ave, Unit B, Denver CO 80229 | +1 303 2883152 | https://www.coloradolighting.com | | |
| 32059 | United States | Colorado Roofing Solutions | 3091 S Jamaica Ct, #220, Aurora, CO 80014 | +1 720 6007236 | www.coloradoroofingsolutions.com | | |
| 32060 | United States | Colorado Solar Company | Colorado Springs, Colorado | +1 719 3929514 | https://coloradosolarco.com | | |
| 32061 | United States | Colorado Solar | 29 Gerald L. Bates Drive, North Billerica, MA 01862. | | www.colorado-solar.org | | |
| 32062 | United States | Colorado Solar Service Inc | 780 Kipling St., Lakewood, CO 80215 | +1 303 2339675 | https://www.coloradosolarserviceinc.net | | |
| 32063 | United States | Colossal Builders | 21354 Nordhoff St Chatsworth, CA 91311 | +1 818 3345758 | colossalbuilders.com | | |
| 32064 | United States | Columbia Construction Company | 100 Riverpark Drive North Reading, MA 01864-0220 | +1 978 6649500 | www.columbiacc.com | | |
| 32065 | United States | Comalli Group, Inc. | 7 Westview Road, Pittsfield, MA 01201 | +1 413 4990024 | www.comalli.com | Canadian Solar Inc., LG Electronics, Inc. | Yaskawa - Solectria Solar, Enphase Energy, Inc., SolarEdge Technologies, Ltd. |
| 32066 | United States | Comfort Control Heating & Air Conditioning, Inc | | +1 530 6420987 | https://www.comfortcontrolair.com | | |
| 32067 | United States | Comfort Engineered Systems, Inc. | 1050 S. Jefferson Davis Pkwy, Suite 205, New Orleans, LA 70125 | +1 504 6026648 | www.com4t.com | | |
| 32068 | United States | Comfort King, Inc. | 3867 Dividend Dr Suite C, Shingle Springs, CA 95682 | +1 916 9334727 | www.comfortkinginc.com | | |
| 32069 | United States | Comfortable Efficiency | | +1 707 8398378 | www.comfortableefficiency.com | | |
| 32070 | United States | Commercial Electric & Maintenance | 281 Thor Ave. SE, Palm Bay, FL 32909 | +1 321 9519866 | cemelectrical.com | | |