| Donald Mc Intyre Services | Donald Ray Mc Intyre | — | (760) 275 6181 | Pool | Cathedral City · Riverside County | — | — |
| Donald O'connor Construction | Donald Ray O'connor | — | (760) 881 0897 | GC, remodel, ADU | Homeland · Riverside County | — | — |
| Donald Plumbing | Donald Plumbing | — | (916) 548 3817 | Other | Blythe · Riverside County | — | — |
| Donald R Maize Construction | Donald Ray Maize | — | (760) 594 7867 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| Donald Rowen Mc Cord | Donald Rowen Mc Cord | — | (310) 266 5609 | GC, remodel, ADU | Palm Springs · Riverside County | — | — |
| Donald Schwarz | Donald Schwarz | — | (442) 637 8017 | GC, remodel, ADU | Palm Desert · Riverside County | — | — |
| Donald Sherwin Burrell | Donald Sherwin Burrell | — | (951) 201 6786 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Donate's Painting Corp | Donate Jesus Sagrero | — | (951) 665-4297 | Windows, patio, painters | Perris · Riverside County | — | — |
| Donathan Plumbing Company | Jason Daniel Donathan | — | (951) 378 0242 | Other | Menifee · Riverside County | — | — |
| Done Right Roofing | Marco Antonio Lopez | info@donerightroofing.com | (951) 813 5396 | Other roofers | Murrieta · Riverside County | — | — |
| Done Rite Heating & Air INC | Juan Raul Antonio Guerrero | — | (951) 423 5894 | HVAC | Perris · Riverside County | — | — |
| Dong's Canaan Construction INC | Huaizhen Joshua Dong | — | (626) 693 9401 | GC, remodel, ADU | Eastvale · Riverside County | — | — |
| Donnie's Plumbing | Donnie's Plumbing | — | (954) 636 0085 | Other | Murrieta · Riverside County | — | — |
| Donssons Construction | Donald Jr Ford | — | (909) 816 2433 | GC, remodel, ADU | Hemet · Riverside County | — | — |
| Doo-rite Construction INC | Kurt Allan Livingston | info@dooriteconstruction.com | (951) 678 1330 | Other roofers | Lake Elsinore · Riverside County | — | — |
| Dooley's Construction And Remodeling | Sean Franklin Dooley | — | (909) 821 5537 | GC, remodel, ADU | Norco · Riverside County | — | — |
| Door Tech | Door Tech | — | (909) 632 1492 | Other | Riverside · Riverside County | — | — |
| Doortech Garage Door Specialist | Doortech Garage Door Specialist | — | (909) 226 8309 | Other | Corona · Riverside County | — | — |
| Dopp Property Services | David William Dopp | — | (909) 856 0442 | GC, remodel, ADU | Beaumont · Riverside County | — | — |
| Dorado Home Renovations INC | Saucedo Ramayan Saldana | — | (760) 660 3615 | GC, remodel, ADU | Desert Hot Springs · Riverside County | — | — |
| Dorado Painting Palm Springs | Tamara St George Dean | — | (760) 449 8905 | Windows, patio, painters | Palm Desert · Riverside County | — | — |
| Dori's Heating & Air Conditioning INC | Adrian Moise Simo | — | (760) 799 7889 | HVAC | La Quinta · Riverside County | — | — |
| Doris Mae Lynn Jones | Doris Mae Lynn Jones | — | (951) 760 0001 | GC, remodel, ADU | Wildomar · Riverside County | — | — |
| Dorn Electric INC | Michael James Willia Dorn | mikedornelectric@gmail.com | (949) 291 5630 | Electricians | Corona · Riverside County | — | — |
| Doss Tennis Surfacing Construction | Jimmie Earl Doss | — | (909) 238 6305 | Other | Mountain Center · Riverside County | — | — |
| Double D Pipeline INC | Jonathan Paul Stone | — | (951) 296 6320 | Other | Temecula · Riverside County | — | — |
| Double Decker Electric | Cody Michaelhenry Decker | — | (951) 282 8282 | Electricians | Nuevo · Riverside County | — | — |
| Double Eagle Roofing & Waterproofing | Cesar Rene Ramirez Legorreta | — | (714) 737 6734 | Other roofers | Riverside · Riverside County | — | — |
| Double M M Construction | Mark Joseph Moscrop | — | (760) 464 7295 | GC, remodel, ADU | Rancho Mirage · Riverside County | — | — |
| Double R Lath / Plaster Construction Corp | Ernest Jr Ritchie | — | (951) 500 9487 | GC, remodel, ADU | Perris · Riverside County | — | — |
| Double Tap Specialty Elevator | Richard Robert D'anna | — | (951) 519 9689 | Other | Lake Elsinore · Riverside County | — | — |
| Doug Bolton Construction | Douglas James Bolton | — | (530) 416 1425 | GC, remodel, ADU | Idyllwild · Riverside County | — | — |
| Doug Giles General Contractor | Doug Giles General Contractor | — | (951) 258 5218 | GC, remodel, ADU | Corona · Riverside County | — | — |
| Doug Kelly INC | Douglas Edward Kelly | — | (909) 553 3475 | HVAC | Moreno Valley · Riverside County | — | — |
| Doug Kinkade Works | Doug Kinkade Works | — | (760) 835 3421 | GC, remodel, ADU | Palm Desert · Riverside County | — | — |
| Doug Nielsen Construction INC | Troy Douglas Nielsen | — | (951) 536 0687 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Doug Wall Construction INC | Douglas Craig Wall | — | (760) 772 8446 | Electricians | Bermuda Dunes · Riverside County | — | — |
| Doug's Low Cost Plumbing | Doug's Low Cost Plumbing | — | (619) 253 4267 | Other | Hemet · Riverside County | — | — |
| Doug's So Cal Painting | Doug's So Cal Painting | — | (951) 679 9682 | Windows, patio, painters | Menifee · Riverside County | — | — |
| Douglas A Allison | Douglas A Allison | — | (951) 660 3571 | GC, remodel, ADU | Temecula · Riverside County | — | — |