| Lighthouse Windows INC | Guy Grant Mitchell | scott@lighthouse-windows.com | (831) 426 2601 | Windows, patio, painters | Santa Cruz · Santa Cruz County | — | — |
| Lightland Electric INC | Gabriel Brian Koch | — | (831) 246 1458 | Electricians | Freedom · Santa Cruz County | — | — |
| Lincoln West Builders INC | Lincoln Erland West | — | (831) 246 3322 | GC, remodel, ADU | Aptos · Santa Cruz County | — | — |
| Lindsey Framing / General Contractor | Lindsey Framing / General Contractor | — | (831) 706 7066 | GC, remodel, ADU | Capitola · Santa Cruz County | — | — |
| Lint Cabinetry | Lint Cabinetry | — | (831) 254 4423 | Other | Watsonville · Santa Cruz County | — | — |
| Lion Oak Tree Care LLC | Thomas Graig Oswald | thomas@lionoaktreecare.com | (773) 558 5851 | Other | Aptos · Santa Cruz County | — | — |
| Lipscomb Associates | Scott Morgan Lipscomb | — | (831) 239 2392 | Windows, patio, painters | Santa Cruz · Santa Cruz County | — | — |
| Litefoot Cabinetry | Litefoot Cabinetry | — | (831) 247 1439 | Other | La Selva Beach · Santa Cruz County | — | — |
| Littlejohn Associates INC DBA Central Coast Fireplace Repair | Nicholas Eugene Littlejohn | — | (831) 515 2450 | Other | Watsonville · Santa Cruz County | — | — |
| Live Oak Design | Live Oak Design | — | (831) 818 1204 | Other | Santa Cruz · Santa Cruz County | — | — |
| Live Oak Floor Co | Scott Jason Glass | — | (831) 428 2730 | Other | Santa Cruz · Santa Cruz County | — | — |
| Livewell Restoration Llc. | Livewell Restoration Llc. | — | (951) 463-5068 | Restoration | Corona · Santa Cruz County | — | — |
| Liz Maitoza Painting | Liz Maitoza Painting | — | (831) 763 7885 | Windows, patio, painters | Watsonville · Santa Cruz County | — | — |
| Ljr Construction Co INC | Richard Allen Burgin | — | (831) 462 5454 | GC, remodel, ADU | Soquel · Santa Cruz County | — | — |
| Lk Construction And Management INC | Renee Ellen Lusk-king | — | (831) 901 1030 | GC, remodel, ADU | Boulder Creek · Santa Cruz County | — | — |
| Lodestone Energy | Lodestone Energy | — | (415) 517 2366 | Electricians | Santa Cruz · Santa Cruz County | — | — |
| Long's Cabinet Shop INC | Nathan Paul Long | — | (831) 335 5533 | Other | Felton · Santa Cruz County | — | — |
| Lopez & Son's Construction INC | Daniel Lee Albrecht | — | (831) 840 6729 | GC, remodel, ADU | Watsonville · Santa Cruz County | — | — |
| Loren L Gitthens | Loren L Gitthens | — | (831) 345 6151 | GC, remodel, ADU | Scotts Valley · Santa Cruz County | — | — |
| Louie Electric | Luis Jr Aguilar | hello@electriclouie.com | (408) 839 8085 | Electricians | Aptos · Santa Cruz County | — | — |
| Louis Pavlina & Sons INC | Louis Peter Pavlina | — | (408) 691 7412 | GC, remodel, ADU | Brookdale · Santa Cruz County | — | — |
| Lovejoy Construction | Ryan Daniel Lovejoy | — | (831) 435 6920 | GC, remodel, ADU | Capitola · Santa Cruz County | — | — |
| Low Voltage Electronics | Jose Maria Perez | — | (408) 612 9560 | Electricians | Watsonville · Santa Cruz County | — | — |
| Lowy Fire Protection | Lowy Fire Protection | — | (831) 809 0639 | Other | Santa Cruz · Santa Cruz County | — | — |
| Loyal Electric INC | Lawrence James Smith | — | (831) 335 1365 | Electricians | Ben Lomond · Santa Cruz County | — | — |
| Lozoya Drywall INC | Lozoya Magana Noriel | astigma@astigmatic.com | (831) 535 3289 | Other | Freedom · Santa Cruz County | — | — |
| Ls-contractors Corp | Randy Scott Lindsey | — | (831) 999 0074 | GC, remodel, ADU | Felton · Santa Cruz County | — | — |
| Lubeck Construction | Alexander Jameson Lubeck | — | (408) 335 5988 | GC, remodel, ADU | Aptos · Santa Cruz County | — | — |
| Lucas General Construction | Tyler Morgan Lucas | — | (425) 422 4346 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Lucino's Construction INC | Lucino Jr Escutia | — | (831) 566-9813 | GC, remodel, ADU | Watsonville · Santa Cruz County | — | — |
| Lucky Electric INC | Maura Jean O'connell | — | (831) 234 0023 | Electricians | Soquel · Santa Cruz County | — | — |
| Luis Roofing | Luis Alfredo Ocegueda | — | (831) 346 8878 | Other roofers | Capitola · Santa Cruz County | — | — |
| Lume Glassworks | Lume Glassworks | — | (831) 227 4699 | Windows, patio, painters | Santa Cruz · Santa Cruz County | — | — |
| Luxe Electric | Brian Levi Backer | — | (831) 325 5865 | Electricians | Ben Lomond · Santa Cruz County | — | — |
| Lyons Marble INC | Jerry Charles Lyons | support@lyonsmarble.com | (831) 425 7701 | Other | Santa Cruz · Santa Cruz County | — | — |
| Lyonscape | Michael Eric Lyons | lyonscape72@gmail.com | (831) 227 6940 | Windows, patio, painters | Scotts Valley · Santa Cruz County | — | — |
| M & M Landscape | M & M Landscape | — | (831) 566 6460 | Windows, patio, painters | Watsonville · Santa Cruz County | — | — |
| M A C Precision Builders INC | Manuel Antonio Contreras | — | (831) 406 9530 | GC, remodel, ADU | Watsonville · Santa Cruz County | — | — |
| M A L Builder | M A L Builder | — | (805) 479 1321 | GC, remodel, ADU | Scotts Valley · Santa Cruz County | — | — |
| M B H Painting | M B H Painting | — | (408) 390 0699 | Windows, patio, painters | Capitola · Santa Cruz County | — | — |