| Rieley Peoples Construction | Rieley Jay Peoples | — | (831) 247 0578 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Rigo's Painting | Rigo's Painting | martinez9205@aol.com | (831) 334 0313 | Windows, patio, painters | Soquel · Santa Cruz County | — | — |
| Rio Del Mar Construction | Rezayat Kazem | — | (408) 410 2889 | GC, remodel, ADU | Aptos · Santa Cruz County | — | — |
| Ritchie Custom Tile & Stone | Ritchie Custom Tile & Stone | — | (831) 334 8918 | Other | Scotts Valley · Santa Cruz County | — | — |
| Rivas Framing | Rivas Framing | — | (831) 588 8900 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Riveras Construction INC | Wilber Antonio Rivera Escobar | — | (831) 316 8141 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Riveros Landscaping | Juan Carlos Ruiz Rivero | — | (831) 332 9749 | Windows, patio, painters | Santa Cruz · Santa Cruz County | — | — |
| Rj Roberson Hardwood Floors | Rj Roberson Hardwood Floors | — | (831) 332 9515 | Other | Aptos · Santa Cruz County | — | — |
| Rm Construction | Mata Rogelio | — | (831) 212 6598 | GC, remodel, ADU | Watsonville · Santa Cruz County | — | — |
| Rm Construction | Ryan Timothy Murphy | — | (408) 316 9709 | GC, remodel, ADU | Scotts Valley · Santa Cruz County | — | — |
| Rm Dev LLC | Robert William Mckissock | — | (831) 278 0456 | GC, remodel, ADU | Ben Lomond · Santa Cruz County | — | — |
| Roar Enterprises | Frank Almonte Sityar | — | (415) 215 5556 | GC, remodel, ADU | Aptos · Santa Cruz County | — | — |
| Rob Clark Construction Company | Robert John Clark | robclarkconstruction@me.com | (951) 830-6708 | GC, remodel, ADU | Felton · Santa Cruz County | — | — |
| Roberson Construction INC | Michael Richard Roberson | — | (405) 422 4204 | GC, remodel, ADU | Scotts Valley · Santa Cruz County | — | — |
| Robert Autrand DBA Pcis | Robert Autrand DBA Pcis | — | (650) 759 2682 | Other | Boulder Creek · Santa Cruz County | — | — |
| Robert Bimbi | Robert Bimbi | — | (408) 833 2096 | GC, remodel, ADU | Boulder Creek · Santa Cruz County | — | — |
| Robert Cromer Construction INC | Robert Anthony Cromer | — | (831) 477 1800 | GC, remodel, ADU | Soquel · Santa Cruz County | — | — |
| Robert Duncan Construction | Robert Walter Duncan | — | (831) 295 0413 | GC, remodel, ADU | Capitola · Santa Cruz County | — | — |
| Robert Ledesma Painting | Robert Ledesma Painting | — | (831) 566 4873 | Windows, patio, painters | Capitola · Santa Cruz County | — | — |
| Robert P Collacino | Robert P Collacino | — | (831) 278 1548 | GC, remodel, ADU | Ben Lomond · Santa Cruz County | — | — |
| Robert Paul Construction | Robert Vaughn Paul | — | (831) 247 2394 | GC, remodel, ADU | Scotts Valley · Santa Cruz County | — | — |
| Robert Stout | Robert Stout | — | (831) 332 2788 | Other | Soquel · Santa Cruz County | — | — |
| Robertson Renovations | Robertson Renovations | er.rrenovations@gmail.com | (925) 685 8821 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Rocco Crisalli | Rocco Crisalli | — | (831) 234 1048 | GC, remodel, ADU | Aptos · Santa Cruz County | — | — |
| Rock Steady Construction | Ryan Leif Judson | ryan@rocksteadyconstruction.com | (831) 345 7808 | GC, remodel, ADU | Davenport · Santa Cruz County | — | — |
| Rod B Smith Construction | Roderick Bartholome Smith | — | (831) 234 7953 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Roddick Pool Products INC | Jon Michael Roddick | — | (831) 476 6363 | Pool | Santa Cruz · Santa Cruz County | — | — |
| Roderick F Miller | Roderick F Miller | — | (408) 261 2595 | Other roofers | Santa Cruz · Santa Cruz County | — | — |
| Rodriguez Flooring | Rodriguez Flooring | — | (831) 234 6808 | Other | Watsonville · Santa Cruz County | — | — |
| Rodriguez Landscape Service | Raul Rodriguez Rodriguez | — | (408) 529 1910 | Windows, patio, painters | Soquel · Santa Cruz County | — | — |
| Rodriguez Tile | Rodriguez Tile | — | (831) 477 0173 | Other | Soquel · Santa Cruz County | — | — |
| Roe Painting | Roe Painting | — | (831) 316 8083 | Windows, patio, painters | Watsonville · Santa Cruz County | — | — |
| Roemke Electric INC | Mark Thomas Roemke | info@roemkeelectric.com | (831) 247 1700 | Electricians | Santa Cruz · Santa Cruz County | — | — |
| Roger Jr Construction | Roger Robles Ruiz | — | (831) 588 6169 | GC, remodel, ADU | Watsonville · Santa Cruz County | — | — |
| Roger Mc Cown DBA Mc Cown Painting | Mc Cown Painting | — | (831) 438 6214 | Windows, patio, painters | Scotts Valley · Santa Cruz County | — | — |
| Roger's Tile | Roger's Tile | — | (831) 707 6402 | Other | Watsonville · Santa Cruz County | — | — |
| Rohrbough's Tree Service INC | Ryan James Rohrbough | info@rohrboughstreeservice.com | (831) 345 6285 | Tree | Scotts Valley · Santa Cruz County | — | — |
| Rollins Fire Spinklers INC | Ronald Alfred Rollins | — | (831) 458 3473 | Other | Soquel · Santa Cruz County | — | — |
| Romele's Floor - Medics | Romele's Floor - Medics | — | (831) 335 7889 | Other | Felton · Santa Cruz County | — | — |
| Ron Clegg | Ron Clegg | — | (831) 252 6790 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |