| R & M Paving Contractors | Rett Anthony Selway | — | (408) 946 2974 | GC, remodel, ADU | Milpitas · Santa Clara County | — | — |
| R & P Painting | R & P Painting | — | (408) 888 3281 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| R & R Custom Pools INC | Rodolfo Hurtado De Anda | — | (408) 992 5339 | Pool | Sunnyvale · Santa Clara County | — | — |
| R & R Development | Robert Wayne Baker | — | (408) 723 8346 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| R & R Painting Services INC | Escobar Rolando Salguero | rrivaspaintingservices@gmail.com | (408) 849 2501 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| R & R Refrigeration & Air Conditioning INC | Cindy Lee| Minor Cindy Lee Fairfield | — | (408) 297 0383 | HVAC | San Jose · Santa Clara County | — | — |
| R & R Specialties Painting INC | Gonzales Roy | — | (408) 920 0312 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| R & S Erection Of Santa Clara County INC | Dana Roy Thompson | — | (408) 436 0484 | Other roofers | San Jose · Santa Clara County | — | — |
| R 2 J 2 Electrical INC | Romel Mangibin Maganis | — | (408) 504 6949 | Electricians | San Jose · Santa Clara County | — | — |
| R 3 J Network Services | John Guadalupe Rubio | — | (408) 847 1200 | Other | Gilroy · Santa Clara County | — | — |
| R A Arredondo Construction | Russell Alexander Arredondo | — | (831) 588 7660 | GC, remodel, ADU | Los Gatos · Santa Clara County | — | — |
| R A E Ancheta Construction | Reynauld Gonzales Ancheta | — | (408) 209 1177 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| R A Remodeling | R A Remodeling | — | (408) 661 9556 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| R A Rodriguez Tile | R A Rodriguez Tile | — | (408) 828 3044 | Other | Santa Clara · Santa Clara County | — | — |
| R A Williams Enterprises Incorporated DBA United Fire Safety | Ray Anthony Williams | — | (408) 998 0790 | Other | San Jose · Santa Clara County | — | — |
| R B Drywall INC | Romualdo Bernal | — | (408) 396 8633 | Other | San Jose · Santa Clara County | — | — |
| R B Flooring | Luis Alonzo Jr Rodriguez | — | (408) 573 1144 | Other | San Jose · Santa Clara County | — | — |
| R B I Electric | Rogelio Arturo Bejarano | — | (408) 710 8383 | Electricians | Morgan Hill · Santa Clara County | — | — |
| R B I Electric INC | Rogelio Arturo Bejarano | — | (408) 710 8383 | Electricians | Morgan Hill · Santa Clara County | — | — |
| R B Ornamental Metal Services | Ronald Fredrick Brandt | — | (408) 859 8000 | Other | Mountain View · Santa Clara County | — | — |
| R Badillo & Sons | R Badillo & Sons | — | (408) 593 4963 | GC, remodel, ADU | San Martin · Santa Clara County | — | — |
| R Brothers Painting INC | Rodriguez Rod | info@rbrotherspainting.com | (408) 291 6820 | Windows, patio, painters | San Jose · Santa Clara County | — | — |
| R Brothers Waterproofing INC | Rod Rodriguez | — | (408) 291 6820 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| R C Air | R C Air | — | (510) 701 0620 | HVAC | San Jose · Santa Clara County | — | — |
| R C Benson & Sons INC General Contractors | Richard Craig Benson | — | (650) 965 3430 | GC, remodel, ADU | Mt View · Santa Clara County | — | — |
| R C Heating | R C Heating | — | (408) 391 0265 | HVAC | San Jose · Santa Clara County | — | — |
| R C Moreno Heating & Air Conditioning | Ruben Caballero Moreno | — | (408) 313 0848 | HVAC | Campbell · Santa Clara County | — | — |
| R C Painting | R C Painting | — | (650) 464 7953 | Windows, patio, painters | East Palo Alto · Santa Clara County | — | — |
| R C Plumbing | R C Plumbing | randy@rcplumbing.com | (650) 483 6593 | Other | Mountain View · Santa Clara County | — | — |
| R C Power INC | Ron Lou Godinez | — | (408) 399 0077 | Electricians | San Jose · Santa Clara County | — | — |
| R C Reconstruction | R C Reconstruction | — | (408) 310 0684 | GC, remodel, ADU | Gilroy · Santa Clara County | — | — |
| R C V Plumbing & Sewer | Randall Charles Vilfroy | — | (408) 363 9693 | Other | San Jose · Santa Clara County | — | — |
| R Cabral Contractor INC | Rolando Jr Cabral | — | (408) 210 8553 | GC, remodel, ADU | San Jose · Santa Clara County | — | — |
| R Cortez & Sons Electric INC | Richard Caricungan| Cortez Ricardo Cortez | — | (408) 314 0704 | Electricians | Milpitas · Santa Clara County | — | — |
| R Duenas Metal Works | R Duenas Metal Works | — | (510) 396 6347 | Other | Palo Alto · Santa Clara County | — | — |
| R E Construction | Robert Michael Eagle | — | (408) 406 4891 | GC, remodel, ADU | Santa Clara · Santa Clara County | — | — |
| R E Cuddie Co | Letitia Ann Allen | — | (408) 998 1250 | Other | San Jose · Santa Clara County | — | — |
| R E Eads Construction | Randall Earl Eads | — | (707) 972 3818 | GC, remodel, ADU | Los Gatos · Santa Clara County | — | — |
| R E Roofing And Construction INC | Paul Milton Proctor | info@reroofingconstruction.com | (408) 626 9320 | Other roofers | San Jose · Santa Clara County | — | — |
| R E S A Construction | Mohammad Hassan Mousavi | — | (408) 314 3033 | Electricians | San Jose · Santa Clara County | — | — |