| 34201 | United States | KRC Enterprises, Inc. | 12211 Woodruff Ave., Downey, CA 90241 | +1 562 8039100 | www.krcsolar.com | ReneSola Ltd. | SMA Solar Technology AG, Shanghai Chint Power Systems Co., LTD. |
| 34202 | United States | Kreutzman Inc | 2275 W. Midway Blvd, Unit C, Broomfield, CO 80020 | +1 720 8806800 | www.kreutzman.com | | |
| 34203 | United States | K. Schenk Electric | P.O. Box 6350 Kaneohe, HI 96744 | +1 808 2609414 | kschenkelectric.com | | |
| 34204 | United States | Kuenn LLC | 2319 South Telulah Avenue, Appleton, WI 54915 | +1 920 8415899 | https://kuennllc.com | | |
| 34205 | United States | Kunert Electric | PO Box 1729, Roseburg, OR 97470 | +1 541 6723333 | kunert-1.com | | |
| 34206 | United States | Kurios Energy | 3025 E. Palm Ave, STE 101, Manteca, CA 95337 | +1 866 4998933 | www.kuriosenergy.com | | |
| 34207 | United States | KUUBIX Energy | 7401 W Sunnyview Ave, Visalia, CA 93291 | +1 855 4588249 | https://www.kuubixenergy.com | | |
| 34208 | United States | Kuykendall Solar, Inc. | 28420 Yosemite Springs Parkway Suite E, Coarsegold, CA 93614 | +1 559 6582525 | www.kuykendallsolar.com | SunPower Corp. | |
| 34209 | United States | KV Electric Inc. | 188 North 3050 East, St. George, UT, 84790 | +1 435 6734696 | www.kvelectric.com | | |
| 34210 | United States | KW Management, Inc. | 55 Lake Street, Box 1171, Nashua, NH 03060 | +1 603 5980181 | kwmanagement.com | | |
| 34211 | United States | KW Solar | 5750 North Sam Houston Pkwy E #810, Houston, TX 77032 | +1 832 8445790 | www.kw.solar | | |
| 34212 | United States | KW Solar Solutions | 94 Childs Road, Elkton, MD 21921 | +1 302 8388400 | kwsolarsolutions.com | | |
| 34213 | United States | Kyzar Air Conditioning Inc. | 239 Tall Pines Road, West Palm Beach, FL 33413 | +1 561 6120242 | https://kyzarairconditioning.com | | |
| 34214 | United States | L & M Electric | Acton, CA, 93510 | +1 661 2692600 | lm-electric.com | | |
| 34215 | United States | L. P. Daniel Engineers and Contractors, Inc. | 1347 Tavern Road, Suite D30, Alpine, CA 91901 | +1 619 7227240 | www.lpdaniel.com | | |
| 34216 | United States | L.e.a.f. Home Renovations LLC | 253 South 45th Avenue Brighton, CO 80601 | +1 602 4307070 | www.leaf-energy.com | | |
| 34217 | United States | LA Solar Group | 16238 Raymer Avenue, Suite B, Los Angeles, CA 91406 | +1 818 3730077 | la-solargroup.com | | |
| 34218 | United States | LA Van Ooutfitters | Los Angeles, CA | +1 954 5795893 | www.lavanoutfitters.com | | |
| 34219 | United States | LA's Custom Power and Lighting Co. | 2812, Lebanon Pike, Nashville, TN, 37214 | +1 615 8851124 | lascustompowerandlighting.com | | |
| 34220 | United States | LaCarrubba Electric, Inc. | Fairless Hills, PA 19030 | +1 215 9494626 | www.lacarrubbaelectric.com | | |
| 34221 | United States | LaCorte Companies, Inc. | 630, Seventh Avenue, Troy, NY 12182 | +1 518 2866000 | www.lacorte.com | | |
| 34222 | United States | Lad Electric LLC | 29 Carrington Avenue Providence, RI 02906 | +1 401 4737537 | ladelectricllc.com | | |
| 34223 | United States | Lloyd Anderson Electrical, Inc. | 966, Palm St., Lindsay, CA, 93247 | +1 559 5624211 | https://www.lloyd-anderson-electrical.net | | |
| 34224 | United States | Lafferty Electric Technologies | 1201 E. Jefferson St., Suite 2, Phoenix, AZ 85034 | +1 602 2209696 | laffertyelectrictechnologies.com | Suntech Power Co., Ltd., Trina Solar Limited, Sharp Energy Solutions Europe, SunWize Power & Battery, LLC. | SMA Solar Technology AG |
| 34225 | United States | Lago Vista Roofing & Solar | | +1 512 9869176 | lagoroofingandsolar.com | | |
| 34226 | United States | Laibach Solar LLC | 5170 Golden Foothill Parkway, El Dorado Hills, CA 95762 | +1 530 3885536 | www.laibachsolar.com | | |
| 34227 | United States | Lake Area Electrical Services LLC. | Lake Ozark, Missouri 65049 | +1 573 2866238 | www.lakeozarkaes.com | | |
| 34228 | United States | Lake Erie Electric | 25730 First Street, Westlake, OH 44145 | +1 440 8355565 | www.lakeerieelectric.com | | |
| 34229 | United States | Lake Michigan Wind & Sun, Ltd | 1015 County Road U, Sturgeon Bay, WI 54235-8353 | +1 920 7430456 | www.solar-flairs.net | | |
| 34230 | United States | Lake Shore Solar LLC | 300 North LaSalle Street, Suite 4925, Chicago, IL 60654 | | https://lakeshoresolar.com | | |