| 101 Concrete Company | Anguiano Isidro Torres | — | (805) 814 5379 | Other | Oxnard · Ventura County | — | — |
| 101 Plumbing Repair Service | Jason Michael Turnidge | — | (805) 258 6458 | Other | Ventura · Ventura County | — | — |
| 101 Sheet Metal INC | Arnold Gysbertus Jr Scherpenborg | accounting@sheet-metal.com | (805) 499 7444 | Other | Newbury Park · Ventura County | — | — |
| 18th St Finish Carpentry | 18th St Finish Carpentry | — | (310) 570 9080 | Other | Oxnard · Ventura County | — | — |
| 1st Class Access Control | Donald Duane Slayton | service@1stclassaccesscontrol.com | (805) 955 9230 | Other | Simi Valley · Ventura County | — | — |
| 1st Demo INC | Juan Manuel Vargas Figueroa | — | (805) 604 7526 | Other | Oxnard · Ventura County | — | — |
| 2 Trees Backflow Two Trees Plumbing INC | Glenn Vaughn Irwin | — | (805) 284 6181 | Other | Oxnard · Ventura County | — | — |
| 24 Hour Garage Door Pro | 24 Hour Garage Door Pro | — | (805) 501 0603 | Other | Simi Valley · Ventura County | — | — |
| 3 - Bar Corporation | Christopher Todd Wray | — | (805) 390 9505 | Other | Camarillo · Ventura County | — | — |
| 3 D Plumbing INC | Gregory Durand Des Baillets | — | (805) 443 4184 | Other | Thousand Oaks · Ventura County | — | — |
| 360 Tile | 360 Tile | — | (805) 907 5578 | Other | Oxnard · Ventura County | — | — |
| 3M Plumbing INC | Mario Manolo Monterroso Ramirez | — | (818) 800 7524 | Other | Simi Valley · Ventura County | — | — |
| 4 J's Plumbing And Drain Cleaning | Jeremy Edward Duncan | — | (805) 302 9564 | Other | Oxnard · Ventura County | — | — |
| 5 Star Low Volt LLC | Mauricio Lemus Franco | — | (805) 407 4715 | Other | Santa Paula · Ventura County | — | — |
| 54 Concrete | 54 Concrete | — | (805) 951 9428 | Other | Oxnard · Ventura County | — | — |
| 6 Hands LLC | Konrad Wolfgang Thieme | — | (805) 491 5377 | Other | Moorpark · Ventura County | — | — |
| 7 Day Garage Doors And Gates INC | Brian Martin Zepeda | — | (805) 279 8203 | Other | Thousand Oaks · Ventura County | — | — |
| 77 Plumbing INC | Chavez Raymundo Olivares | — | (805) 953 9123 | Other | Moorpark · Ventura County | — | — |
| 805 - Lath & Plastering | 805 - Lath & Plastering | — | (805) 705 6370 | Other | Ventura · Ventura County | — | — |
| 805 Custom Cabinets LLC | Jacob Edward Elder | — | (805) 301 0019 | Other | Camarillo · Ventura County | — | — |
| 805 Digital Signs | Juan Gabriel Tolentino | — | (818) 816 8513 | Other | Oxnard · Ventura County | — | — |
| 805 Discing And Grading INC | Charles Morgan Ferris | — | (805) 750 6443 | Other | Thousand Oaks · Ventura County | — | — |
| 805 Plumbing | 805 Plumbing | — | (805) 603 3704 | Other | Oxnard · Ventura County | — | — |
| 805 Sewer & Plumbing INC | Julio Zezar Hernandez | — | (805) 424 7405 | Other | Simi Valley · Ventura County | — | — |
| A & A Concrete INC | Dacia Ann Martinez | interested@domainmarket.com | (805) 676 0829 | Other | Ventura · Ventura County | — | — |
| A & A Flooring Services Corporation | Jose David Morejon Larin | — | (818) 269 1815 | Other | Simi Valley · Ventura County | — | — |
| A & A Paving Company | Perez Armando | — | (805) 947 9707 | Other | Santa Paula · Ventura County | — | — |
| A & B Marble And Granite LLC | Martin Botello Barbosa | — | (805) 890 0983 | Other | Oxnard · Ventura County | — | — |
| A & E Hardwood Flooring | A & E Hardwood Flooring | — | (805) 698 8074 | Other | Ventura · Ventura County | — | — |
| A & G Plumbing And Rooter Corp | Gabriel Garcia | — | (805) 396 4446 | Other | Ventura · Ventura County | — | — |
| A A A Advanced Garage Door Services | Munir Mohamed Latif | — | (805) 297 7811 | Other | Simi Valley · Ventura County | — | — |
| A G D Cabinetry | A G D Cabinetry | — | (805) 680 3606 | Other | Ventura · Ventura County | — | — |
| A G Woodworks | A G Woodworks | — | (805) 512 1518 | Other | Camarillo · Ventura County | — | — |
| A Grade Plumbing | Francisco Javier Hernandez | — | (805) 705 2864 | Other | Oxnard · Ventura County | — | — |
| A M C Services | Erich Wootan Kreig | — | (805) 216 9145 | Other | Ventura · Ventura County | — | — |
| A M Concrete Incorporated | Kathleen A Mattivi | — | (818) 362 8300 | Other | Thousand Oaks · Ventura County | — | — |
| A M Foxx Plumbing | A M Foxx Plumbing | — | (805) 732 4115 | Other | Thousand Oaks · Ventura County | — | — |
| A Quality Plastering Co | Jeffrey Edward Cusworth | — | (805) 312 3055 | Other | Simi Valley · Ventura County | — | — |
| A R Pipeline INC | Aaron Joe Ramirez | — | (805) 732 4437 | Other | Thousand Oaks · Ventura County | — | — |
| A Same Day Testing Co | April Day Hoyle | — | (805) 639 0080 | Other | Camarillo · Ventura County | — | — |