| Reyes Construction | Prospero Ceferino Reyes | — | (209) 405 5251 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Reynolds Cabinetry And Fine Finish | Reynolds Cabinetry And Fine Finish | — | (209) 629 5111 | Other | Ripon · San Joaquin County | — | — |
| Reynoso Mendez Concrete INC | Guitron Alfredo Mendez | — | (408) 887 1459 | Other | Tracy · San Joaquin County | — | — |
| Rfl Remodeling | Robert Frances Lopez | — | (408) 829 9307 | GC, remodel, ADU | Mountain House · San Joaquin County | — | — |
| Rg Legacy Construction LLC | Raul Jesus Campos Gonzalez | — | (408) 422 8824 | GC, remodel, ADU | Lathrop · San Joaquin County | — | — |
| Rg Quality Trim And Construction INC | Resendiz Cortes Hernan | — | (209) 992 6618 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Rhino Restores | Ryan David Haggerty | info@rhinorestores.com | (209) 475 9898 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Rhl Construction | Ronald Henry Lynch | — | (209) 327 1107 | GC, remodel, ADU | Lodi · San Joaquin County | — | — |
| Richard Chiapparelli Electric | Chiapparelli Richard | — | (209) 462 9552 | Electricians | Stockton · San Joaquin County | — | — |
| Richard Dean Johnson | Richard Dean Johnson | — | (209) 495 2074 | Windows, patio, painters | Lodi · San Joaquin County | — | — |
| Richard Elisary | Richard Elisary | — | (408) 972 5325 | Other | Ripon · San Joaquin County | — | — |
| Richard Ernest Deulus | Richard Ernest Deulus | — | (209) 595 1341 | GC, remodel, ADU | Ripon · San Joaquin County | — | — |
| Richard T De Ponte | Richard T De Ponte | — | (209) 571 7353 | GC, remodel, ADU | Ripon · San Joaquin County | — | — |
| Richard's Painting & Decorating | Richard's Painting & Decorating | — | (209) 321 4889 | GC, remodel, ADU | Ripon · San Joaquin County | — | — |
| Richard's Pumping & Excavating INC | Jorge Cabrera | — | (209) 931 1844 | Other | Stockton · San Joaquin County | — | — |
| Richardson Construction | Teddy Frank Richardson | info@richdirt.com | (209) 423 6804 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Richter Fence INC | Larry Jay Richter | richterfence@verizon.net | (209) 599 5645 | Other | Ripon · San Joaquin County | — | — |
| Rick Valenzuela Concrete | Rick Valenzuela Concrete | — | (209) 483 0977 | Other | Manteca · San Joaquin County | — | — |
| Ridolfi Pool And Spa Repair | Ridolfi Pool And Spa Repair | — | (209) 346 3159 | Pool | Tracy · San Joaquin County | — | — |
| Rightway Drywall | Rightway Drywall | — | (408) 605 2372 | Other | Escalon · San Joaquin County | — | — |
| Ripon Woodworks INC | David Bastian Vant Voort | dave@riponwoodworks.com | (209) 404 4532 | Other | Ripon · San Joaquin County | — | — |
| Rittenbach Builders | Donna Mae Rittenbach | — | (925) 570 9521 | GC, remodel, ADU | Lodi · San Joaquin County | — | — |
| Rittenbach Roofing & Waterproofing Services INC | Perez Contreras Vaudelio | — | (925) 570 9648 | Other roofers | Tracy · San Joaquin County | — | — |
| River Gardens Construction LLC | Sergio Padilla-Gonzalez | — | (209) 594 5717 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| River Islands Construction LLC | Daniel Michael Coleman | — | (209) 879 7900 | GC, remodel, ADU | Lathrop · San Joaquin County | — | — |
| River Mist Pool | River Mist Pool | — | (209) 601 1991 | Pool | Lodi · San Joaquin County | — | — |
| Rizo's Pool INC | Guillermo Rizo-Cazarez | — | (209) 640 5710 | Pool | Tracy · San Joaquin County | — | — |
| Rj&w Landscaping | Gutierrez Rosendo Perez | — | (408) 796 2688 | Windows, patio, painters | Tracy · San Joaquin County | — | — |
| Rkb Construction INC | Ruben Padilla Martinez | — | (559) 286 4399 | GC, remodel, ADU | Lathrop · San Joaquin County | — | — |
| Rlh Painting And Decorating | Rlh Painting And Decorating | — | (209) 328 8141 | Windows, patio, painters | Ripon · San Joaquin County | — | — |
| Rm Heating & Air Conditioning | Rm Heating & Air Conditioning | — | (209) 230 3848 | HVAC | Stockton · San Joaquin County | — | — |
| Rm Precision Tile INC | Gomez Ruben Martinez | contact@sansoxygen.com | (209) 263 2724 | Other | Lodi · San Joaquin County | — | — |
| Rmc Insulation Experts INC | Castillo Rolando Hernandez | — | (209) 740 0772 | Other | Manteca · San Joaquin County | — | — |
| Rnb Framing INC | Terry Lee Jr Blakey | — | (925) 337 9121 | GC, remodel, ADU | Tracy · San Joaquin County | — | — |
| Road Runner Glass - Manteca | John Edward Jr Brennan | rrglassmanteca@aol.com | (209) 239 4177 | Windows, patio, painters | Manteca · San Joaquin County | — | — |
| Robert A Raymus | Robert A Raymus | — | (209) 824 3080 | GC, remodel, ADU | Manteca · San Joaquin County | — | — |
| Robert Burns Construction INC | James Edward Burns | — | (209) 943 6969 | Other | Stockton · San Joaquin County | — | — |
| Robert G Sievers | Robert G Sievers | — | (209) 483 1143 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Robert Lee Hill DBA Focus Construction | Robert Lee Hill | — | (209) 482 2226 | GC, remodel, ADU | Stockton · San Joaquin County | — | — |
| Robert W Porter Iii DBA R W Welding & Repair | R W Welding & Repair | — | (209) 649 0394 | Other | Linden · San Joaquin County | — | — |