| Ram Modular Homes INC | Hiyoung Kevin Yoon | — | (805) 200 6266 | Other | Ventura · Ventura County | — | — |
| Ram Painting INC | Javier Ramirez | — | (805) 509 5158 | Windows, patio, painters | Oxnard · Ventura County | — | — |
| Ramin Shafaghi | Ramin Shafaghi | — | (805) 207 0707 | Electricians | Westlake Village · Ventura County | — | — |
| Ramirez Tile Company | Ray F Ramirez | — | (805) 218 1838 | Other | Santa Paula · Ventura County | — | — |
| Ramiro Rivera | Ramiro Rivera | — | (805) 258 1794 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Ramon Hernandez | Ramon Hernandez | — | (805) 248 1601 | Windows, patio, painters | Santa Paula · Ventura County | — | — |
| Ramos Brother Masonry | Ramos Brother Masonry | — | (805) 889 1251 | Other | Oxnard · Ventura County | — | — |
| Ramos Structural Welding & Fabrication | Ramos Structural Welding & Fabrication | — | (805) 253 8905 | Other | Oxnard · Ventura County | — | — |
| Ramsay Communications | Ramsay Communications | — | (818) 612 7607 | Other | Simi Valley · Ventura County | — | — |
| Ramsay One | Ramsay One | info@ramsayone.com | (805) 527 3295 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Ramsey/moran Construction INC | Noel Geffroy Moran | — | (805) 218 1676 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| Randall C Rosson | Randall C Rosson | — | (805) 338 5349 | Electricians | Newbury Park · Ventura County | — | — |
| Randall Construction And Development | Randall Brehm Kister | — | (909) 292 6536 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| Randall Moore Landscapes | Randall Moore Landscapes | — | (831) 239 7405 | Windows, patio, painters | Ventura · Ventura County | — | — |
| Randall Plumbing Construction | Jeffrey Randall Brocca | — | (818) 842 4115 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Randon Garver Estate Gardens INC | Randon Jack Garver | — | (805) 798 1101 | Windows, patio, painters | Ojai · Ventura County | — | — |
| Randy Centeno Custom Painting INC | Randy Anthony Centeno | — | (805) 804 7205 | Windows, patio, painters | Ventura · Ventura County | — | — |
| Randy Villa Construction And Remodeling INC | Randall Ray Villa | — | (805) 218 7924 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| Randy's Quality Painting | Randy's Quality Painting | — | (805) 660 6920 | Windows, patio, painters | Simi Valley · Ventura County | — | — |
| Rangel Landscape Design LLC | Rangel Felix | — | (805) 732 3924 | Windows, patio, painters | Oxnard · Ventura County | — | — |
| Rangel Painting | Rangel Painting | — | (805) 689 8261 | Windows, patio, painters | Ventura · Ventura County | — | — |
| Ranieri Finish Carpentry INC | Mark Averill Ranieri | — | (805) 732 7745 | Other | Thousand Oaks · Ventura County | — | — |
| Rat Sound Systems INC | Gregory James Binkard | — | (805) 383 0777 | Other | Camarillo · Ventura County | — | — |
| Rated R Construction | Jordan Romano Alvarado | — | (805) 775 7198 | GC, remodel, ADU | Oxnard · Ventura County | — | — |
| Rattner Construction | Kenneth Douglas Rattner | — | (805) 804 2024 | GC, remodel, ADU | Newbury Park · Ventura County | — | — |
| Ravello West Construction INC | Christopher Lowell Christian | — | (310) 979 3210 | GC, remodel, ADU | Camarillo · Ventura County | — | — |
| Raven Remodeling INC | Raymond Mark Herrera | — | (818) 577 6759 | GC, remodel, ADU | Newbury Park · Ventura County | — | — |
| Raw Millworks | Raw Millworks | — | (310) 488 3996 | Other | Camarillo · Ventura County | — | — |
| Rawls Construction INC | Jason Craig Rawls | — | (805) 208 2867 | GC, remodel, ADU | Moorpark · Ventura County | — | — |
| Ray - Mac Painting INC | Ray George Mc Gee | — | (805) 676 1066 | Windows, patio, painters | Camarillo · Ventura County | — | — |
| Ray Barrow Jr | Ray Barrow Jr | — | (805) 419 3401 | Other | Camarillo · Ventura County | — | — |
| Ray Beaty | Ray Beaty | — | (310) 213 1958 | GC, remodel, ADU | Ojai · Ventura County | — | — |
| Ray Breton Construction | Raymond Douglas Breton | — | (805) 698 3150 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| Ray Clayton | Ray Clayton | — | (805) 208 0515 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Ray Lembo Construction | Raymond Peter Iii Lembo | — | (805) 217 5074 | GC, remodel, ADU | Simi Valley · Ventura County | — | — |
| Ray Rieman Construction | Raymond Patrick Rieman | — | (805) 701 2107 | GC, remodel, ADU | Ventura · Ventura County | — | — |
| Rayco Roofing Contractor's INC | Kristopher William Hebert | — | (805) 643 0557 | Other roofers | Ventura · Ventura County | — | — |
| Raylan Construction | Hal Lee Robinson | — | (530) 440 3131 | GC, remodel, ADU | Ojai · Ventura County | — | — |
| Raymond A Fuess | Raymond A Fuess | — | (805) 496 3985 | GC, remodel, ADU | Thousand Oaks · Ventura County | — | — |
| Rays Pool & Spa Services & Repair | Rays Pool & Spa Services & Repair | — | (805) 647-5709 | Pool | Ventura · Ventura County | — | — |