| 31831 | United States | Carver Solar and General Construction, Inc. | Belle, Missouri 65013 | +1 573 5781302 | https://www.carversolar.com | | |
| 31832 | United States | Cross Atlantic Solar LLC | 2150 SW 10th Street, Suite C, Deerfield Beach, FL, 33442 | +1 855 7283786 | www.crossatlanticsolar.com | Hanwha Q CELLS GmbH, Jinko Solar Holding Co., Ltd., LG Electronics, Inc. | SMA Solar Technology AG, Enphase Energy, Inc., SolarEdge Technologies, Ltd., Altenergy Power System Inc. |
| 31833 | United States | Creative Air Solutions | 6634 Ampere Ave., North Hollywood, CA 91606 | +1 877 2276205 | creativeairsolutionsca.com | | |
| 31834 | United States | Cascade Coast Solar | Newport, Oregon | +1 541 9615606 | www.cascadecoastsolar.com | | |
| 31835 | United States | Cascade Power | 151 N Sunrise Ave #1000, Roseville, CA, 95661 | +1 844 5374727 | https://www.cascadepower.com | | |
| 31836 | United States | Cascade Solar | 14040 W. 32nd Ave., Golden, CO 80401 | +1 720 9336225 | cascadese.com | | |
| 31837 | United States | Cascadia Solar | 402 Glen Cove Rd., Port Townsend, WA 98368 | +1 360 9306993 | cascadiasolar.com | | Blue Frog Solar LLC |
| 31838 | United States | Case & Sons Construction | 1310 N Miller Street Anaheim, CA 92806 | +1 714 9932206 | www.caseandsonsconstruction.com | | |
| 31839 | United States | Casey Electric, LLC | 3561 Boundary Way Tell City, IN 47586 | +1 812 2284086 | https://www.caseysolar.com | | |
| 31840 | United States | Cassel Electric | Fort Worth, TX 76140 | +1 214 4898119 | casselelectricfortworth.com | | |
| 31841 | United States | Cassis Construction | 566 East Long Beach Rd St. James , NY 11780 | +1 516 3220497 | www.cassisconstruction.com | | |
| 31842 | United States | Castle Electric | 3303 Harbor Blvd, Suite B5,Costa Mesa, CA 92626 | +1 714 8813740 | https://www.castleelectric.com | | |
| 31843 | United States | Castle Energy LLC | 200 Cambria Ave., Pleasantville, NJ 0823 | +1 609 3659619 | www.castleenergyllc.com | | |
| 31844 | United States | Castle Energy, LLC | 8306 Ridge Road, Cleveland, Ohio 44133 | +1 440 3901340 | www.castlenrg.com | | |
| 31845 | United States | Castle Solar & Roofing Providers New York | | +1 718 8086334 | https://castle-solar-roofing-providers-new... | | |
| 31846 | United States | Catalyst Electric | 31 Rock House Road, Linn Creek, MO 5052 | +1 573 5528488 | catalystelectric.com | | |
| 31847 | United States | Catch The Sun | 708, Rivendell Court Pierce, CO 80650 | +1 970 8343403 | catchthesunsolar.net/ | | |
| 31848 | United States | Catizone Electrical Contracting Inc | 3122, Expressway Drive South, Islandia, NY, 11749 | +1 631 5430282 | www.cecelectric.biz | | |
| 31849 | United States | Catskill Solar | 11368 County Highway 14 Delhi, New York | +1 607 7467041 | catskill-solar.com | | OutBack Power, SMA Solar Technology AG, Fronius International GmbH, Enphase Energy, Inc. |
| 31850 | United States | Cazault Solar | 103 Maplewood Avenue, Gloucester, MA 01930 | +1 978 2814625 | cazeaultsolar.com | | |
| 31851 | United States | Cazeault Roofing & Solar | 1031 Main St., Osterville, MA 02631 | +1 508 4281117 | https://www.cazeault.com | | |
| 31852 | United States | CB Solar Inc. | 5425 Lower Beaver Rd, Des Moines, IA 50310 | +1 515 3314200 | www.cbsolarinc.com | | Panasonic Corporation (Sanyo), LG Electronics, Inc., Boviet Solar Technology Co., Ltd, Silfab Solar Inc. |
| 31853 | United States | Casco Bay Electric, LLC | 21 Rice Street Portland, Maine 04103 | +1 207 2213331 | www.cascobayelectric.com | | |
| 31854 | United States | Contractors Building Supply, Inc. | 16880 Front St., Copemish, MI 49625 | +1 231 3782936 | www.cbssolar.com | | |
| 31855 | United States | Collins Control & Electric Inc. | 1025 Smithfield Drive, Fort Collins, CO 80524 | +1 970 4848696 | www.collins-control.com | | |
| 31856 | United States | Cheshire County Electric LLC | 29 Old Leonard Rd, Swanzey NH, 03446 | +1 603 3137572 | cheshirecountyelectric.com | | |
| 31857 | United States | Cooperative Coummunity Energy Corporation | 534 4th Street, Suite C, San Rafael, CA 94901-3360 | +1 415 4570215 | www.ccenergy.com | | ET Energie & Handel GmbH, Kyocera Corporation, Trina Solar Limited, Sharp Energy Solutions Europe |
| 31858 | United States | Central Coast Energy Services, Inc. | PO Box 2707, Watsonville, CA 95077 | +1 888 7283637 | www.energyservices.org | | |
| 31859 | United States | CCM Roofing, LLC | 105 Bloomingdale Rd., Ste. 3, Hicksville, NY 11801 | +1 516 6813583 | www.ccmroofing.com | | |
| 31860 | United States | Competitive Commercial Roofing, Inc. | P.O. Box 495, Hood River, Oregon, 97031 | +1 503 8035537 | bestroofusa.com/ | | |