| 3md Floors | Mauricio Agustin Ayala | — | (831) 444 1488 | Other | Salinas · Monterey County | — | — |
| 831 Custom Tile & Stone INC | Luiz Jurias Bautista | — | (831) 970 1399 | Other | Salinas · Monterey County | — | — |
| 831 Hcflooring LLC | Hugo Cesar Fernandez-rocha | — | (831) 540 7709 | Other | Moss Landing · Monterey County | — | — |
| 831 Pld Enterprises INC | Peter Lowell Dew | — | (831) 999 7667 | Other | Carmel Valley · Monterey County | — | — |
| A & F Plastering INC | Flavio Barajas-Mendoza | — | (831) 214 6603 | Other | Aromas · Monterey County | — | — |
| A & G Machine Shop INC | Anuar Rivera Molina | — | (831) 758 8774 | Other | Salinas · Monterey County | — | — |
| A & M Plumbing | A & M Plumbing | — | (831) 293 3924 | Other | Del Rey Oaks · Monterey County | — | — |
| A & R Plumbing INC | Katherine Marie Roper | — | (831) 394 7221 | Other | Sand City · Monterey County | — | — |
| A & S Metals Recycling & Demolition | Stanley George Jr Silva | — | (831) 633 3379 | Other | Castroville · Monterey County | — | — |
| A 1 Telecom | A 1 Telecom | — | (831) 905 2478 | Other | Salinas · Monterey County | — | — |
| A A A Wire | A A A Wire | electronics@potters.com | (831) 393 0277 | Other | Seaside · Monterey County | — | — |
| A And L Plumbing | A And L Plumbing | — | (831) 320 3613 | Other | Salinas · Monterey County | — | — |
| A C Fire Protection INC | Alfaro Joel Castillo | info@acfireprotection.com | (831) 757 0101 | Other | Salinas · Monterey County | — | — |
| A D S Tile & Marble | Daniel Mejia | — | (831) 256 0012 | Other | Salinas · Monterey County | — | — |
| A L Plumbing & Construction INC | Austin Phillip Lucero | — | (831) 241 1587 | Other | Salinas · Monterey County | — | — |
| Aaron Overhead Doors | Aaron Overhead Doors | — | (678) 960-3360 | Other | Monterey · Monterey County | — | — |
| Aaron's Plumbing | Aaron's Plumbing | — | (831) 999 0909 | Other | Marina · Monterey County | — | — |
| Abel's Concrete INC | Daniel Salazar | — | (831) 320 5012 | Other | Prunedale · Monterey County | — | — |
| Accent Clean & Sweep INC | Michael Sean Haughey | — | (831) 783 0303 | Other | Salinas · Monterey County | — | — |
| Ace Plastering | Ace Plastering | — | (831) 596 4290 | Other | Salinas · Monterey County | — | — |
| Acme Awning LLC | Aaron Stephen Dani Clore | — | (831) 424 7134 | Other | Salinas · Monterey County | — | — |
| Acme Plumbing | Ed Manuel Mendoza | — | (831) 422 2311 | Other | Salinas · Monterey County | — | — |
| Active Connectivity Low Voltage Solutions | Adrian Sebastian Fernandez | — | (408) 518 1691 | Other | Salinas · Monterey County | — | — |
| Adl Engineering LLC | Adiel Garcia | — | (831) 783 7296 | Other | Salinas · Monterey County | — | — |
| Adt Plumbing INC | Acosta Fermin Herrera | — | (831) 258 4160 | Other | Salinas · Monterey County | — | — |
| Advanced Certified Welding | Advanced Certified Welding | — | (831) 210 1862 | Other | Salinas · Monterey County | — | — |
| Advanced Demolition & Material Recovery INC | Michael Hugh Jennings | — | (925) 765 9955 | Other | Royal Oaks · Monterey County | — | — |
| Advanced Drywall | Advanced Drywall | — | (831) 809 2209 | Other | Salinas · Monterey County | — | — |
| Advanced Steel Fabrication INC | Garry Julian Hanson | blog@painting.com | (831) 758 5457 | Other | Salinas · Monterey County | — | — |
| Advantage Products INC | Russell W Kammerdiener | — | (831) 646 8500 | Other | Monterey · Monterey County | — | — |
| Affordable Plumbing Now | Affordable Plumbing Now | — | (831) 521 5248 | Other | Salinas · Monterey County | — | — |
| After Hour Plumbing & Drain | Cedric William Ii Johnson | — | (831) 717 7329 | Other | Monterey · Monterey County | — | — |
| Ag's Plumbing INC | Lopez Francisco Garcia | — | (831) 869 3171 | Other | Seaside · Monterey County | — | — |
| Aguilar's Fencing | Aguilar's Fencing | info@aguilarsfencing.com | (831) 970 2274 | Other | Salinas · Monterey County | — | — |
| Aiello Plastering INC | Jack Bert Aiello | info@aielloplastering.co | (831) 809 8932 | Other | Salinas · Monterey County | — | — |
| Alan Drew Blacksmith | Alan Drew Blacksmith | — | (831) 920 7103 | Other | Carmel · Monterey County | — | — |
| Aleman Plumbing INC | Carlos Marin Sr Aleman | — | (831) 585 4068 | Other | Salinas · Monterey County | — | — |
| Alfredo's Concrete 1 INC | Alonzo Alfredo Garcia | — | (831) 905 7205 | Other | Salinas · Monterey County | — | — |
| All Around Sign & Display | All Around Sign & Display | — | (831) 224 6186 | Other | Salinas · Monterey County | — | — |
| All Central Coast Garage Doors | All Central Coast Garage Doors | — | (831) 229 5804 | Other | Salinas · Monterey County | — | — |