| Robert King | Robert King | — | (530) 846 4701 | GC, remodel, ADU | Gridley · Butte County | — | — |
| Robert L Scheid Construction | Robert Lawrence Scheid | — | (916) 947 8089 | GC, remodel, ADU | Chico · Butte County | — | — |
| Robert W Shaw Construction | Robert Wayne Shaw | — | (530) 693 6060 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Robert Will Construction | Robert Lynn Will | — | (530) 592 7154 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Robert X Gomez | Robert X Gomez | — | (530) 566 7464 | GC, remodel, ADU | Magalia · Butte County | — | — |
| Roberts Heating & Cooling | Roberts Heating & Cooling | — | (707) 708 6387 | HVAC | Paradise · Butte County | — | — |
| Robin Trenda General Contractor | Robin Trenda General Contractor | — | (530) 342 8267 | GC, remodel, ADU | Chico · Butte County | — | — |
| Robinson Log Construction | Anthony Joseph Robinson | — | (530) 353 8489 | GC, remodel, ADU | Magalia · Butte County | — | — |
| Robles Construction INC | Alberto Ricardo Robles | — | (530) 681 8024 | GC, remodel, ADU | Gridley · Butte County | — | — |
| Rock Creek Construction INC | Bryan Isaac Henderson | — | (530) 210 7749 | GC, remodel, ADU | Chico · Butte County | — | — |
| Rockwest Builders INC | Niccolo Gonzalez Paparella | — | (530) 302 6187 | GC, remodel, ADU | Chico · Butte County | — | — |
| Rodger Akers Finishing & Painting | Rodger Akers Finishing & Painting | — | (530) 624 5932 | Windows, patio, painters | Chico · Butte County | — | — |
| Rodriguez Builds | Rodriguez Builds | — | (530) 693 0940 | GC, remodel, ADU | Palermo · Butte County | — | — |
| Rodriguez Construction | David Michael Rodriguez | — | (530) 712 0503 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Roessel Company | John Arthur Roessel | — | (415) 725 4225 | GC, remodel, ADU | Chico · Butte County | — | — |
| Roger Soudan Construction | Roger Alan Soudan | — | (530) 282 6277 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Roger William Hogan | Roger William Hogan | — | (530) 897 0540 | Windows, patio, painters | Chico · Butte County | — | — |
| Roger's Roofing | Roger Scot Graham | — | (530) 693 0938 | Other roofers | Gridley · Butte County | — | — |
| Rogers Painting | Rogers Painting | — | (530) 414 4854 | Windows, patio, painters | Palermo · Butte County | — | — |
| Rohrer Construction | Andrew Francis Rohrer | — | (530) 624 2720 | GC, remodel, ADU | Chico · Butte County | — | — |
| Rolando Oriel Martinez | Rolando Oriel Martinez | — | (530) 566 3622 | HVAC | Chico · Butte County | — | — |
| Romano Construction | Ben David Romano | — | (530) 518 8139 | GC, remodel, ADU | Chico · Butte County | — | — |
| Ron Kliewer | Ron Kliewer | — | (951) 538 7705 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Ronald L Caporale General Contractor | Ronald L Caporale General Contractor | — | (530) 514 1916 | GC, remodel, ADU | Chico · Butte County | — | — |
| Rooted Custom Designs Construction INC | Jeffrey William Ward | — | (530) 413 8653 | GC, remodel, ADU | Magalia · Butte County | — | — |
| Ross Constructors INC | Scott Anthony Ross | — | (530) 592 6819 | Electricians | Durham · Butte County | — | — |
| Rosser Enterprises INC | Levi David Rosser | — | (530) 218 6352 | GC, remodel, ADU | Biggs · Butte County | — | — |
| Roy C Meyer Construction | Roy Christopher Meyer | — | (530) 277 9039 | GC, remodel, ADU | Berry Creek · Butte County | — | — |
| Roy Williams / General Construction | Roy Lee Williams | — | (530) 693 4316 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Royal Aire INC | Royal Decker Hawkley | ellis.adams@royalaire.com | (530) 899 9999 | HVAC | Chico · Butte County | — | — |
| Royal Painting | Royal Painting | — | (530) 828 5656 | Windows, patio, painters | Chico · Butte County | — | — |
| Rtb General Engineering INC | Patrick Loren Benedict | — | (916) 594 1417 | Other | Oroville · Butte County | — | — |
| Rupp Construction Company | Steven Scott Rupp | mail@ruppconstruction.com | (530) 709 0130 | GC, remodel, ADU | Oroville · Butte County | — | — |
| Russell Smith General Building Con | Russell Smith General Building Con | — | (530) 230 8812 | GC, remodel, ADU | Chico · Butte County | — | — |
| Russell's Windows | Russell's Windows | anapbm@gmail.com | (530) 570 5089 | Windows, patio, painters | Chico · Butte County | — | — |
| Rw Construction | Rusty Wayne White | — | (530) 514 9139 | GC, remodel, ADU | Chico · Butte County | — | — |
| Ryan A Terry | Ryan A Terry | — | (949) 235 7725 | GC, remodel, ADU | Paradise · Butte County | — | — |
| Ryan David Hoskin | Ryan David Hoskin | — | (530) 277 8228 | HVAC | Gridley · Butte County | — | — |
| Ryan's Construction | Christopher Robert Ryan | — | (530) 999 3695 | GC, remodel, ADU | Chico · Butte County | — | — |
| S & S Excavating INC | Christy Marie Santillan | — | (530) 228 9786 | Other | Gridley · Butte County | — | — |