| R D Prater Construction Co INC | Ronald Dean Prater | — | (530) 693 2788 | GC, remodel, ADU | Oroville · Butte County | — | — |
| R E Builders | R E Builders | — | (818) 292 4707 | GC, remodel, ADU | Chico · Butte County | — | — |
| R E M Co Mechanical | Robert Earl Jr Midose | — | (530) 873 1687 | HVAC | Magalia · Butte County | — | — |
| R E M Construction Incorporated | Richard Eugene Schell | — | (530) 876 1363 | GC, remodel, ADU | Chico · Butte County | — | — |
| R G Herrera Construction Co | Raul Galaviz Herrera | — | (530) 624 7485 | GC, remodel, ADU | Gridley · Butte County | — | — |
| R G S Construction | Ronald Leverne Iii Anderson | — | (530) 863 9510 | GC, remodel, ADU | Chico · Butte County | — | — |
| R L Casey Construction | Rufus L Casey | — | (530) 797 2012 | GC, remodel, ADU | Gridley · Butte County | — | — |
| R Lopez Const & Remodeling | R Lopez Const & Remodeling | — | (530) 870 1798 | GC, remodel, ADU | Gridley · Butte County | — | — |
| R M S Builders | R M S Builders | — | (530) 899 9312 | GC, remodel, ADU | Durham · Butte County | — | — |
| R M T Construction | Richard Michael Tillinghast | — | (415) 531 2370 | GC, remodel, ADU | Oroville · Butte County | — | — |
| R N R Floor Covering | R N R Floor Covering | — | (530) 715 9107 | Other | Forest Ranch · Butte County | — | — |
| R P M Construction | Robert Paul Menefee | — | (530) 321 1771 | GC, remodel, ADU | Oroville · Butte County | — | — |
| R S G Painting | Robert Thomas Stapleton | hello@rfuenzalida.com | (530) 680 2849 | Windows, patio, painters | Oroville · Butte County | — | — |
| R Thomas Welding | R Thomas Welding | — | (530) 320 4317 | Other | Chico · Butte County | — | — |
| R&r Horn Contractors INC | Richard Allan Horn | — | (530) 342 8655 | GC, remodel, ADU | Chico · Butte County | — | — |
| Ra-construction | Ryan Bruce Ayers | — | (530) 519 1956 | GC, remodel, ADU | Chico · Butte County | — | — |
| Rainwater Construction INC | Colby John Rainwater | — | (530) 864 2783 | GC, remodel, ADU | Chico · Butte County | — | — |
| Ramirez Floor Covering | Ramirez Floor Covering | — | (530) 717 1011 | Other | Gridley · Butte County | — | — |
| Ramirez Painting Company INC | Randy Keith Ramirez | — | (530) 514 8186 | Windows, patio, painters | Chico · Butte County | — | — |
| Ramos Construction | Ramos Jimenez Efren | interested@domainmarket.com | (530) 680 6281 | GC, remodel, ADU | Chico · Butte County | — | — |
| Randy Hill Construction INC | Randy Dean Hill | — | (530) 892 1918 | GC, remodel, ADU | Chico · Butte County | — | — |
| Randys Plumbing | Randys Plumbing | — | (530) 519 2648 | GC, remodel, ADU | Chico · Butte County | — | — |
| Rankin Pump | Rankin Pump | — | (530) 589 1020 | Other | Berry Creek · Butte County | — | — |
| Rappa Construction And Design | Jack Robert Rappa | — | (530) 251 7197 | GC, remodel, ADU | Durham · Butte County | — | — |
| Rash Homes INC | Jace Kenneth Rash | — | (530) 693 1937 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Ratzlaff Construction | Bruce Leonard Ratzlaff | — | (808) 259 6623 | GC, remodel, ADU | Paradise · Butte County | — | — |
| Rawe Tree Care & Preservation | Rawe Tree Care & Preservation | — | (530) 321 4576 | Tree | Forest Ranch · Butte County | — | — |
| Ray's Carpet Service | Raymond W Wehnau | — | (530) 893 8215 | Other | Chico · Butte County | — | — |
| Ray's Concrete | Ray's Concrete | — | (530) 534 7703 | Other | Oroville · Butte County | — | — |
| Raymond Lee Peltola Painting And Decorating | Raymond Lee Peltola | — | (530) 919 6952 | Windows, patio, painters | Magalia · Butte County | — | — |
| Rb Electric LLC | Randy Christopher Burke | — | (530) 327 8320 | Electricians | Paradise · Butte County | — | — |
| Rci Apex Jv | Enterprises INC Apex | — | (530) 533 3918 | Other | Oroville · Butte County | — | — |
| Rci Electrical | Wilbert Jr Holsey | — | (530) 961 3220 | Electricians | Chico · Butte County | — | — |
| Rci General Engineering | Jake Elliott Richter | — | (530) 533 3918 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Rcm Builders INC | Maldonado Camolinga Rafael | nick@rcmbuilders.com | (530) 713 0448 | GC, remodel, ADU | Chico · Butte County | — | — |
| Re Construction INC | Ronald Larry Jr Enos | — | (530) 872 8338 | GC, remodel, ADU | Chico · Butte County | — | — |
| Rebel Renovations | David William Dorn | — | (530) 864 4757 | GC, remodel, ADU | Chico · Butte County | — | — |
| Red Dirt Electric | Bill Stephen Whiteman | reddirtelectric@gmail.com | (530) 413 3197 | Electricians | Paradise · Butte County | — | — |
| Red Dirt Underground | Daryl Martin Siller | — | (530) 514 0652 | Other | Chico · Butte County | — | — |
| Red Line Installations INC | Larry Lamar Marple | — | (530) 891 6719 | GC, remodel, ADU | Chico · Butte County | — | — |