| Robert B Larson | Robert B Larson | — | (805) 668 1995 | GC, remodel, ADU | Los Osos · San Luis Obispo County | — | — |
| Robert Behl | Robert Behl | — | (805) 776 2313 | Other | Atascadero · San Luis Obispo County | — | — |
| Robert Bronte | Robert Bronte | — | (805) 543 7696 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| Robert C Bentley DBA Bentley's Custom Iron Works | Bentley's Custom Iron Works | — | (805) 227 6568 | Other | Paso Robles · San Luis Obispo County | — | — |
| Robert E Wisberg | Robert E Wisberg | — | (805) 550 5537 | GC, remodel, ADU | Arroyo Grande · San Luis Obispo County | — | — |
| Robert Elke Plumbing | Robert Elke Plumbing | — | (805) 748 3194 | Other | San Luis Obispo · San Luis Obispo County | — | — |
| Robert Hather Well Drilling | Robert Hather Well Drilling | — | (805) 459 1841 | Other | San Luis Obispo · San Luis Obispo County | — | — |
| Robert J Dorazio | Robert J Dorazio | — | (805) 481 0713 | GC, remodel, ADU | Oceano · San Luis Obispo County | — | — |
| Robert Kenneth Bruington | Robert Kenneth Bruington | — | (805) 431 0919 | GC, remodel, ADU | Los Osos · San Luis Obispo County | — | — |
| Robert L Mcdonald INC | Robert Lee Mc Donald | — | (805) 235 1008 | GC, remodel, ADU | Cambria · San Luis Obispo County | — | — |
| Robert Nieto Landscape And Design | Robert Nieto Landscape And Design | — | (805) 459 0475 | Windows, patio, painters | Shell Beach · San Luis Obispo County | — | — |
| Robert Phillips Construction | Robert Laurance Phillips | — | (805) 610 0705 | GC, remodel, ADU | Paso Robles · San Luis Obispo County | — | — |
| Robert R Strom | Robert R Strom | — | (805) 550 8657 | GC, remodel, ADU | Los Osos · San Luis Obispo County | — | — |
| Robert Reynders | Robert Reynders | — | (805) 540 6526 | GC, remodel, ADU | Paso Robles · San Luis Obispo County | — | — |
| Robert W Bagby Construction | Robert William Bagby | — | (805) 431 2949 | Other | Atascadero · San Luis Obispo County | — | — |
| Roberta L Haylock | Roberta L Haylock | — | (805) 904 6622 | Other | Grover Beach · San Luis Obispo County | — | — |
| Roberto Nunez | Roberto Nunez | robertonunez@robertonunez.com | (805) 266 1334 | Other | Oceano · San Luis Obispo County | — | — |
| Roberts Painting | Roberts Painting | — | (805) 712 9382 | Windows, patio, painters | Paso Robles · San Luis Obispo County | — | — |
| Robertson Builders INC | Chad Michael Robertson | — | (805) 473 2610 | GC, remodel, ADU | Arroyo Grande · San Luis Obispo County | — | — |
| Robinson's Ornamental Iron Works | Robinson's Ornamental Iron Works | — | (805) 239 2995 | Other | Atascadero · San Luis Obispo County | — | — |
| Robs Restoration And Renovation | Robs Restoration And Renovation | — | (603) 854 0167 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| Robyn J Kaplanek | Robyn J Kaplanek | — | (805) 710 1524 | GC, remodel, ADU | Grover Beach · San Luis Obispo County | — | — |
| Rock Solid Concepts | Anita Elizabeth Frankhauser | — | (805) 896 4750 | Windows, patio, painters | Nipomo · San Luis Obispo County | — | — |
| Rock Solid Plumbing | Rock Solid Plumbing | — | (805) 772 7024 | Other | Morro Bay · San Luis Obispo County | — | — |
| Rock Solid Restoration | Rock Solid Restoration | — | (805) 296 3861 | Restoration | Paso Robles · San Luis Obispo County | — | — |
| Rocksteady Plumbing | Rocksteady Plumbing | — | (805) 237 7625 | Other | Paso Robles · San Luis Obispo County | — | — |
| Rocky Butte Masonry INC | Seth Orion| Chauvaux Seth O Chauvaux | — | (805) 909 0203 | Other | Cambria · San Luis Obispo County | — | — |
| Rocky Canyon Engineering | Cynthia Renee Dallaire | — | (805) 464 3807 | Other | Atascadero · San Luis Obispo County | — | — |
| Rod Cooper Construction | Rod Thomas Cooper | — | (805) 296 6934 | GC, remodel, ADU | Grover Beach · San Luis Obispo County | — | — |
| Rodney Collins Construction | Rodney Eugene Collins | — | (805) 712 9202 | GC, remodel, ADU | Paso Robles · San Luis Obispo County | — | — |
| Rodolfo R Lopez Hernandez | Rodolfo R Lopez Hernandez | — | (805) 268 0675 | GC, remodel, ADU | Templeton · San Luis Obispo County | — | — |
| Rodriguez Ryan Anthony | Rodriguez Ryan Anthony | — | (805) 345 1592 | Other | Paso Robles · San Luis Obispo County | — | — |
| Rogall + Co | Steven Kyle Dale Rogall | hello@rogall.com | (805) 772 2012 | Windows, patio, painters | Morro Bay · San Luis Obispo County | — | — |
| Roger's Const Remodel | Roger's Const Remodel | — | (805) 801 1418 | GC, remodel, ADU | Pismo Beach · San Luis Obispo County | — | — |
| Rogers & Pedersen Construction INC | Douglas Scott Pedersen | — | (805) 354 5400 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| Roho Construction Company | Kevin Robert Robinson | — | (805) 712 5602 | Other | Atascadero · San Luis Obispo County | — | — |
| Ron Bass Construction | Ronald Lee Bass | — | (805) 459 3219 | GC, remodel, ADU | Los Osos · San Luis Obispo County | — | — |
| Ron Blaski Construction | Ronald Louis Blaski | — | (805) 610 3358 | GC, remodel, ADU | Atascadero · San Luis Obispo County | — | — |
| Ron Blum Finish Carpentry | Ron Blum Finish Carpentry | — | (805) 391 3621 | Other | Paso Robles · San Luis Obispo County | — | — |
| Ron Boyer Cabinets | Ron Boyer Cabinets | — | (805) 235 2226 | Other | San Luis Obispo · San Luis Obispo County | — | — |