| Killebrew Contracting | Carl B Killebrew | carl@killebrewcontracting.com | (909) 737 7576 | GC, remodel, ADU | Corona · Riverside County | — | — |
| Killer Bee Pest Control INC | Eldon Samuel Millett | — | (760) 329 3847 | GC, remodel, ADU | Desert Hot Springs · Riverside County | — | — |
| Kilo - Watts Electric | Magana Aquilino | — | (760) 777 0538 | Electricians | Indio · Riverside County | — | — |
| Kilter Termite And Pest Control | Gregory Stephen Jr Mc Kendall | — | (714) 288 5635 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| Kim Emmerling Construction | Emmerling Kim | — | (951) 789 4900 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Kim Painting | Kim Painting | — | (951) 293 1242 | Windows, patio, painters | Riverside · Riverside County | — | — |
| Kincaid Development INC | Joseph Wayne Kincaid | joe@kincaiddevelopment.com | (909) 816 2815 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Kincaid Electric | Jawn Tasoy Kincaid | service@kincaidelectric.com | (863) 676-0198 | Electricians | Winchester · Riverside County | — | — |
| Kinder Construction | Branden John Kinder | — | (949) 235 4864 | GC, remodel, ADU | Lake Elsinore · Riverside County | — | — |
| Kinetic Air INC | Robert Lealand Allen | — | (951) 553 0615 | HVAC | Murrieta · Riverside County | — | — |
| Kinetic Tree Care INC | Mishelle Bravo | — | (951) 269 1435 | Other | Riverside · Riverside County | — | — |
| King General Construction Corp | Jose De Jesus Jr Madrigal | — | (951) 292 4948 | GC, remodel, ADU | Jurupa Valley · Riverside County | — | — |
| King Guard Roofing | Bahena Bryan | — | (951) 275 4306 | Other roofers | Moreno Valley · Riverside County | — | — |
| King Kongcrete | King Kongcrete | — | (909) 327 7154 | Other | Riverside · Riverside County | — | — |
| King San Wong | King San Wong | — | (626) 780 8366 | GC, remodel, ADU | Corona · Riverside County | — | — |
| King Sign Co | Bruce Wayne Ortiz | — | (951) 654 3644 | Other | San Jacinto · Riverside County | — | — |
| King Stone Contractor | Benavides Rosendo Reyes | — | (760) 234 7416 | Other | Coachella · Riverside County | — | — |
| King Stud Contracting INC | Anthonie Joseph Mc Gowan | jane@brand.com | (951) 704 4937 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| King's Fencing INC | Flores Isai Roca | — | (714) 654 4076 | Other | Riverside · Riverside County | — | — |
| King's Gate Of So Cal INC | Calvin Nyles Westra | — | (951) 928 3123 | Other | Wildomar · Riverside County | — | — |
| Kingdom Builders General Construction INC | David Philip Sanchez | — | (951) 545 8728 | GC, remodel, ADU | Moreno Valley · Riverside County | — | — |
| Kingdom Drywall Solutions INC Kdsi | Francisco Martin Arredondo Luna | — | (760) 861 2225 | Other | Desert Hot Springs · Riverside County | — | — |
| Kingdom Epoxy Solutions | Kingdom Epoxy Solutions | — | (909) 270 8080 | Other | Eastvale · Riverside County | — | — |
| Kingdom Plumbing LLC | Clarence James Hunt | — | (951) 746 8462 | Other | Menifee · Riverside County | — | — |
| Kings Custom Painting | Rodriguez Sergio Reyes | — | (760) 799 6237 | Windows, patio, painters | Coachella · Riverside County | — | — |
| Kings Remediation | Jarrod James Hughes | — | (760) 898 4281 | GC, remodel, ADU | Palm Desert · Riverside County | — | — |
| Kingsboro Construction | David Leroy Kingsboro | info@kingsboroconstruction.com | (414) 807-5261 | GC, remodel, ADU | Moreno Valley · Riverside County | — | — |
| Kip Incorporated | Angelica Melaine Bowen | — | (951) 698 7890 | Other | Murrieta · Riverside County | — | — |
| Kirbman Sealing & Striping | Kirbman Sealing & Striping | — | (760) 776 1002 | Other | Palm Desert · Riverside County | — | — |
| Kirchen Electric And Fire | Harold August Jr Kirchen | — | (714) 501 0309 | Electricians | Sun City · Riverside County | — | — |
| Kirchner Construction INC | Dawson Dean Kirchner | — | (949) 233 1450 | Other | Riverside · Riverside County | — | — |
| Kirco Manufactured Housing Construction | James M Bobitch | — | (951) 264 5053 | Other | Moreno Valley · Riverside County | — | — |
| Kirk Westerfield | Kirk Westerfield | — | (760) 533 4815 | GC, remodel, ADU | Hemet · Riverside County | — | — |
| Kirkpatrick Landscaping Services INC | Steven James Kirkpatrick | — | (760) 347 6926 | Windows, patio, painters | Indio · Riverside County | — | — |
| Kirmina Construction | Sameh Shawki Beshay | — | (424) 240 3703 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Kirschmann Construction | Steven Issacc Kirschmann | — | (909) 225 5825 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Kiser Construction | Vincent Jay Kiser | — | (951) 205 1312 | GC, remodel, ADU | Banning · Riverside County | — | — |
| Kissconcrete INC | Chad Howard Cook | — | (951) 533 8821 | Other | Hemet · Riverside County | — | — |
| Kitchen & Home Remodel 33 DBA Kitchen & Home Carpentry 33 | Luis Manuel Aguilar | — | (760) 529 3717 | Other | Menifee · Riverside County | — | — |
| Kitchen & More | Kitchen & More | — | (951) 733 1091 | GC, remodel, ADU | Corona · Riverside County | — | — |