| Alliance Building Solutions INC | Bradley Craig Chapman | info@alliance-usa.com | (619) 933 0183 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Alliance Building Solutions LLC | Bradley Craig Chapman | info@alliance-usa.com | (619) 438 3028 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Alliance Construction Group | Todd Michael Shannon | — | (619) 817 9956 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Alliance Development Services INC | James David Wait | — | (619) 241 7207 | GC, remodel, ADU | Poway · San Diego County | — | — |
| Alliance Diversified Enterprises INC | Joan B Grenke | — | (760) 744 1005 | GC, remodel, ADU | Escondido · San Diego County | — | — |
| Alliance Electrical Systems INC | Jeffrey Scott Gallego | — | (619) 933 0183 | Electricians | San Diego · San Diego County | — | — |
| Alliance Lath And Plaster INC | Jason Paul Seifert | — | (619) 540 6630 | Other | La Mesa · San Diego County | — | — |
| Alliance Sheet Metal INC | Victor Fernando Rivera | — | (619) 779 4391 | Other | Imperial Beach · San Diego County | — | — |
| Allie Rae Build & Design INC | Allison Rae Dietrich | guy@infinitydesignbuild.com | (760) 707 6401 | GC, remodel, ADU | Vista · San Diego County | — | — |
| Allied American Construction & Restoration INC | Mark Stevens Jr Espinoza | info@alliedamericanrc.com | (619) 997 1955 | GC, remodel, ADU | El Cajon · San Diego County | — | — |
| Allied Energy INC | Simon Andrew Allan | info@alliedenergy-us.com | (760) 746 1248 | Electricians | Carlsbad · San Diego County | — | — |
| Allied Fence | Allied Fence | — | (760) 522 8841 | Other | Escondido · San Diego County | — | — |
| Allied Property Maintenance Corp | Angelo Steven Oriol | — | (619) 890 1718 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Allison & Sons Landscaping Of California INC | James Russell Allison | — | (619) 229 0455 | Windows, patio, painters | San Diego · San Diego County | — | — |
| Alloway Plumbing LLC | Jeremy John Alloway | — | (760) 704 2698 | GC, remodel, ADU | San Marcos · San Diego County | — | — |
| Allpro Coating | Juan Alejandro Rios Manriquez | interested@domainmarket.com | (619) 250 6487 | Windows, patio, painters | Chula Vista · San Diego County | — | — |
| Allpro Welding | Allpro Welding | — | (619) 200 3138 | Other | La Mesa · San Diego County | — | — |
| Allstate Roofing | Sevilla Bruno | — | (619) 601 5682 | Other roofers | Chula Vista · San Diego County | — | — |
| Alltech Solar INC | Pamela Kay Carmody | info@alltechsolarusa.com | (949) 439 0069 | HVAC | San Diego · San Diego County | — | — |
| Allure Windows And Doors INC | John Clifford Beaver | — | (619) 647 7744 | GC, remodel, ADU | Santee · San Diego County | — | — |
| Allways Fire Protection INC | Christopher Tracy Fox | — | (760) 294 4525 | Other | Escondido · San Diego County | — | — |
| Allweather Roofing LLC | Rolando Alberto Arana-Reyes | info@allweatherroofingsd.com | (818) 300 4003 | Other roofers | San Diego · San Diego County | — | — |
| Allwood.design LLC | Pavlyuk Oleh | info@awdmiami.com | (858) 519 6990 | Other | San Diego · San Diego County | — | — |
| Ally Contracting Group INC DBA Ally Sheet Metal | David Stephen Meienburg | guy@infinitydesignbuild.com | (619) 471 1901 | GC, remodel, ADU | Del Mar · San Diego County | — | — |
| Allyn Construction | Louisa Patrick Allyn | — | (310) 874 2552 | GC, remodel, ADU | Carlsbad · San Diego County | — | — |
| Alma Roofing INC | Santana Enrique Segura | buildzoomsupport@blockrenovation.com | (619) 551 3331 | Other roofers | San Diego · San Diego County | — | — |
| Almanza Maintenance Repair And Remodeling | Almanza Maintenance Repair And Remodeling | — | (858) 270 6939 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Almco Plumbing INC | Yana Khorenko | marketing@almcoplumbing.com | (858) 209 7214 | Other | San Diego · San Diego County | — | — |
| Almendariz Plumbing Systems | Almendariz Plumbing Systems | — | (760) 419 4211 | Other | Escondido · San Diego County | — | — |
| Almighty Garage Doors | Almighty Garage Doors | — | (760) 274 7540 | Other | Fallbrook · San Diego County | — | — |
| Almighty Plumbing Services INC | Matthew Vern Thompson | — | (619) 670 0921 | Other | La Mesa · San Diego County | — | — |
| Almighty Roofing INC | Carrillo Alberto Jeronimo | info@almightyroofinginc.com | (760) 840 9297 | Other roofers | San Marcos · San Diego County | — | — |
| Aloha Appliance Installation INC | Charles Eric Wong | — | (808) 757 4607 | Other | Oceanside · San Diego County | — | — |
| Aloha Builders | Aloha Builders | — | (760) 807 6619 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Aloha Cabinet Co | Michael Kent Wetherell | — | (858) 603 2679 | Other | San Diego · San Diego County | — | — |
| Aloha Drain Rooters | Aloha Drain Rooters | — | (858) 432 9102 | Other | San Diego · San Diego County | — | — |
| Aloha Installations | Aloha Installations | — | (760) 529 2101 | Other | Vista · San Diego County | — | — |
| Aloha Painting Co | David Limule Martin | — | (760) 505 3282 | Windows, patio, painters | Vista · San Diego County | — | — |
| Alona Construction And Design | Gil Noel Alona | — | (442) 291 5689 | GC, remodel, ADU | Vista · San Diego County | — | — |
| Alonso Bobcat Service | Alonso Rodolfo | — | (619) 698 7356 | Other | Spring Valley · San Diego County | — | — |