| 37891 | United States | Valley Unique Electric, Inc | 75 Park Creek Dr., Clovis, CA 93611 | +1 559 2374795 | www.valleyunique.com | | |
| 37892 | United States | W. G. Dale Electric Co. | 814, Converse Ave, Cheyenne, WY, 82001 | +1 307 6329238 | https://www.daleelectric.com | | |
| 37893 | United States | W.W. Gay Mechanical Contractor, Inc. | 524 Stockton Street Jacksonville, FL 32204 | +1 904 4745600 | https://www.wwgmc.com | | |
| 37894 | United States | W3 Solar | 3090 Eleanor Way, Santa Cruz, CA 95065 | +1 831 8180312 | w3solar.com | | |
| 37895 | United States | Waldo Renewable Electric, LLC | Old Lyme, CT 06371 | +1 203 4949523 | waldorenewable.com | | |
| 37896 | United States | Waldrop Inc. | 331 South Hammett Road, Greer, SC 29615 | +1 800 9925024 | www.waldropinc.com | | |
| 37897 | United States | Walker Electric Corporation | San Juan Capistrano, CA 92675 | +1 714 9705800 | walkerelectriccorp.com | | |
| 37898 | United States | Walker Power | Union, New Jersey | +1 908 3771391 | https://walkerpower.energy | | |
| 37899 | United States | Walker's Electric | 249 S. Highway 101, #314 Solana Beach, California 92075 | +1 760 4791426 | www.walkerselectric.com | | |
| 37900 | United States | Walla Walla Electric | 1225 W. Poplar, Walla Walla, WA 99362 | +1 509 5258672 | www.wwelectric.com | Enphase Energy, Inc. | |
| 37901 | United States | Wally Masters Electrical Services | Sacramento, CA 95833 | +1 916 7187246 | wallymasterselectrical.com | | |
| 37902 | United States | Wally Nassif Electric | 3330 2nd Ave N, Palm Springs, FL, 33461 | +1 561 5822600 | www.nassifelectric.com | | |
| 37903 | United States | Walter's Electric Inc. | Hawaii Island, 741 Kanoelehua Ave, Hilo, HI | +1 808 9351868 | https://walterselectricinc.com | | |
| 37904 | United States | Wanex Electrical Services, LLC | 261 Airport Road, New Castle, DE 19720 | +1 302 3261700 | www.wanex.com | | |
| 37905 | United States | Want Solar | | +1 866 9802551 | wantsolar.net | | |
| 37906 | United States | Wanxiang New Energy LLC | 5985, Logistics Parkway, Rockford, Illinois, 61109 | +1 815 2260884 | wanxiang-energy.com | | |
| 37907 | United States | Wanzek Construction Inc. | 4850 32nd Ave S, Fargo, ND 58104 | +1 701 2826171 | www.wanzek.com | | |
| 37908 | United States | Warner Energy, LLC | 7526, Morgan Rd, Liverpool, NY, 13090 | +1 315 4573828 | warnerenergy.com | | |
| 37909 | United States | Warren Roofing & Insulating Co | 7015 Krick Road, Walton Hills, OH 44146 | +1 440 4994649 | https://warrenroofing.com | | |
| 37910 | United States | Wasatch Solar | 4417 S 2950 E, Salt Lake City, UT, 84124 | +1 888 2505058 | www.wasatchsolar.com | | |
| 37911 | United States | Washington Electric | 14404 SE 216th St, Kent, WA 98042 | +1 425 3325855 | https://www.washingtonelectric.net | | |
| 37912 | United States | Watson Electric & HVAC | 126 Palm St., Abilene, TX 79602 | +1 325 6735382 | https://www.watsonelectrictx.com | | |
| 37913 | United States | Watson Electrical | 1500 Charleston St., Wilson, NC 27893 | +1 252 2377511 | watsonelec.com | | |
| 37914 | United States | Watt 1 Electrical Systems LLC | P.O.Box 297856, Columbus, Ohio 43229 | +1 614 2164573 | www.watt1electrical.com | | |
| 37915 | United States | WATT Electric Inc. | 338 3rd St., Hollister, CA 95023 | +1 831 6371000 | www.wattelectricinc.com | | |
| 37916 | United States | Watt-Sun Electric LLC | 825 Poor Farm Road, Colchester VT 05446 | +1 802 8794860 | https://www.wattsunelectricvt.com | | |
| 37917 | United States | Watts New Under the Sun, Inc. | | +1 760 7829200 | wattsnew.org | | |
| 37918 | United States | Wattsup Solar | 4343 N Scottsdale Rd Ste 166, Scottsdale, AZ 85251 | +1 480 3312971 | www.wattsupsolaraz.com | | |
| 37919 | United States | Wave Energy, llc. | 333 South Patrick Dr., #2 Satellite Beach, Fl. 32937 | +1 321 9142347 | www.gowaveenergy.com | Enphase Energy, Inc. | |
| 37920 | United States | Wayne's Solar Inc. | 357 Andrews Street, Ormond Beach, FL 32174 | +1 386 6739720 | www.waynesolar.com | Panasonic Corporation (Sanyo), Hyundai Energy Solutions | SMA Solar Technology AG, Enphase Energy, Inc., SolarEdge Technologies, Ltd. |