| R F Designs | R F Designs | — | (951) 323 7495 | Windows, patio, painters | Nipomo · San Luis Obispo County | — | — |
| R F Koerber INC | Justin Reginald Koerber | info@rfkoerber.com | (805) 237 8647 | GC, remodel, ADU | Paso Robles · San Luis Obispo County | — | — |
| R G C Building And Design | Rob Andrew Gantenbein | — | (805) 471 9522 | GC, remodel, ADU | Morro Bay · San Luis Obispo County | — | — |
| R H Newdoll Construction INC | Robert Hugo Newdoll | — | (805) 489 4457 | GC, remodel, ADU | Nipomo · San Luis Obispo County | — | — |
| R Haas Carpets | R Haas Carpets | — | (805) 459 7213 | Other | Morro Bay · San Luis Obispo County | — | — |
| R J Jacobson Construction | Robert John Jacobson | — | (805) 459 1332 | GC, remodel, ADU | Arroyo Grande · San Luis Obispo County | — | — |
| R J Kellogg Tile & Stone | Richard John Kellogg | — | (805) 952 3027 | Other | Atascadero · San Luis Obispo County | — | — |
| R J O'connor INC DBA New West Painting Co | Robert Jeffrey O'connor | — | (805) 459 5599 | Windows, patio, painters | Paso Robles · San Luis Obispo County | — | — |
| R J Potter Construction INC | Robert James Potter | — | (805) 237 0817 | GC, remodel, ADU | Paso Robles · San Luis Obispo County | — | — |
| R L G Construction | Rennie Loran Gomes | — | (805) 441 7823 | GC, remodel, ADU | Paso Robles · San Luis Obispo County | — | — |
| R Liles Construction | Riley Thomas Liles | — | (805) 458 7896 | GC, remodel, ADU | Grover Beach · San Luis Obispo County | — | — |
| R Mckinley Construction Incorporated | Ryan Logan Mc Kinley | — | (805) 239 0490 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| R Myers INC | Michael Ryan Myers | — | (805) 441 3649 | Other | Morro Bay · San Luis Obispo County | — | — |
| R P E Plumbing | R P E Plumbing | — | (805) 400 9833 | Other | Paso Robles · San Luis Obispo County | — | — |
| R P Plumbing | R P Plumbing | — | (805) 710 9616 | Other | Nipomo · San Luis Obispo County | — | — |
| R P Ramsay Construction | Randolph Preston Ramsay | — | (805) 441 8603 | GC, remodel, ADU | San Luis Obispo · San Luis Obispo County | — | — |
| R Ramey Construction | Ronald Steven Ramey | — | (805) 720 6744 | Other | Atascadero · San Luis Obispo County | — | — |
| R Rojas Enterprises INC | Rojas Robert | — | (805) 674 2227 | Other | Paso Robles · San Luis Obispo County | — | — |
| R S Fire Protection | R S Fire Protection | — | (805) 481 8898 | Other | Atascadero · San Luis Obispo County | — | — |
| R S H Construction INC | Robert Kenton Hendricks | — | (805) 466 2481 | GC, remodel, ADU | Atascadero · San Luis Obispo County | — | — |
| R Skelton Construction INC | Dennis Randolph Reese | — | (928) 234 4128 | GC, remodel, ADU | Paso Robles · San Luis Obispo County | — | — |
| R W Boyd Construction | Ryan William Boyd | — | (805) 286 7468 | GC, remodel, ADU | Creston · San Luis Obispo County | — | — |
| Rabo's Concrete | Rabo's Concrete | — | (805) 769 6025 | Other | Paso Robles · San Luis Obispo County | — | — |
| Rady Electric | James Charles Rady | radyelectric@gmail.com | (805) 975 3778 | Electricians | Atascadero · San Luis Obispo County | — | — |
| Rafa - El Paint Works | Rafael Antonio Alonzo-Diaz | — | (805) 234 6888 | Windows, patio, painters | Los Osos · San Luis Obispo County | — | — |
| Ragone Repipe And Repairs | Ragone Repipe And Repairs | — | (805) 980 5188 | Other | Arroyo Grande · San Luis Obispo County | — | — |
| Rains Construction | Richard Scott Rains | rainsconstruction@yahoo.com | (805) 406 9006 | GC, remodel, ADU | Grover Beach · San Luis Obispo County | — | — |
| Rainscape A Landscape Service Company | Albert Lamp Hummell | — | (805) 541 8536 | Windows, patio, painters | San Luis Obispo · San Luis Obispo County | — | — |
| Raminha Construction INC | David Lyle Raminha | — | (805) 461 0052 | Other | Atascadero · San Luis Obispo County | — | — |
| Ramirez Landscaping | Ramirez Landscaping | — | (805) 234 5019 | Windows, patio, painters | Atascadero · San Luis Obispo County | — | — |
| Ramones Construction & Design | Ramones Tomas | — | (805) 710 1369 | GC, remodel, ADU | Arroyo Grande · San Luis Obispo County | — | — |
| Ramos Construction | Gerald H Ramos | interested@domainmarket.com | (805) 772 8093 | GC, remodel, ADU | Morro Bay · San Luis Obispo County | — | — |
| Ramsey's Remedies | Ramsey's Remedies | — | (805) 423 9116 | GC, remodel, ADU | Paso Robles · San Luis Obispo County | — | — |
| Rancho Construction | Brent Ray Pruett | — | (805) 478 4735 | GC, remodel, ADU | Arroyo Grande · San Luis Obispo County | — | — |
| Randall G Rominger | Randall G Rominger | — | (805) 706 0276 | GC, remodel, ADU | Arroyo Grande · San Luis Obispo County | — | — |
| Randy Botts Construction | Randy Michael Botts | — | (805) 610 5764 | GC, remodel, ADU | Templeton · San Luis Obispo County | — | — |
| Randy Huntington | Randy Huntington | — | (805) 610 9341 | GC, remodel, ADU | Atascadero · San Luis Obispo County | — | — |
| Randy Wilber General Engineering Contractor | Randy Wilber General Engineering Contractor | — | (805) 391 3182 | Other | Paso Robles · San Luis Obispo County | — | — |
| Ranelletti Painting & Const | Ranelletti Painting & Const | — | (805) 441 4815 | GC, remodel, ADU | Arroyo Grande · San Luis Obispo County | — | — |
| Rangel Enterprises INC | Jose Candido Rangel | — | (805) 440 0644 | GC, remodel, ADU | Atascadero · San Luis Obispo County | — | — |