| Aaa North County Handyman Service | Todd Andrew Gomes | — | (760) 402 8633 | GC, remodel, ADU | Oceanside · San Diego County | — | — |
| Aaa Plumbing | Aaa Plumbing | — | (619) 808 1804 | Other | Spring Valley · San Diego County | — | — |
| Aaa Quality Heating And Cooling INC | Ali Afif Mjeed Anaee | — | (619) 404 8254 | HVAC | Oceanside · San Diego County | — | — |
| Aaa Royall Painting | Aaa Royall Painting | — | (858) 255 9571 | Windows, patio, painters | San Diego · San Diego County | — | — |
| Aaa Wiring & Electrical | Benjamin Jeffery Day | team@latofonts.com | (619) 200 5582 | Electricians | San Diego · San Diego County | — | — |
| Aaa Woodcrafters INC | Keith Andrew | shop@aaawoodcrafters.com | (760) 419 5132 | GC, remodel, ADU | Encinitas · San Diego County | — | — |
| Aaa/goforth Plumbing & Drain | Aaa/goforth Plumbing & Drain | — | (760) 789 3541 | Other | Ramona · San Diego County | — | — |
| Aaaffordable M H Construction INC | Sean Michael Feeney | — | (760) 471 1212 | GC, remodel, ADU | San Marcos · San Diego County | — | — |
| Aac Painting INC | Alfonso Eudaldo Cha | — | (619) 348 8102 | Windows, patio, painters | Chula Vista · San Diego County | — | — |
| Aaction Builders Of San Diego | Aaction Builders Of San Diego | gove@san.rr.com | (858) 336-6929 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Aafsi | Michael Nathan D'orazio | — | (619) 562 3010 | Other | Santee · San Diego County | — | — |
| Aahi INC | Daniel Deeb Jaoudi | — | (858) 999 2208 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Aair Tech Refrigeration & A / C INC | Yousif Steve | — | (619) 250 2326 | HVAC | La Mesa · San Diego County | — | — |
| Aaj Elite Plumbing LLC | Brian Yoneki Matsumoto | — | (619) 832 8138 | Other | Santee · San Diego County | — | — |
| Aarce Building Company | Aaron Villagomez Villagomez | — | (619) 745 9135 | GC, remodel, ADU | Chula Vista · San Diego County | — | — |
| Aardema Electric & Construction Corp | Peter James Aardema | aardemaelectric@yahoo.com | (619) 954 7505 | Electricians | Solana Beach · San Diego County | — | — |
| Aardvark Septic Systems | Kathleen Elsie De Anda | — | (619) 843 1262 | GC, remodel, ADU | Oceanside · San Diego County | — | — |
| Aaron Kleiman Renovation | Aaron Kleiman Renovation | buildzoomsupport@blockrenovation.com | (619) 820 6518 | GC, remodel, ADU | El Cajon · San Diego County | — | — |
| Aaron P Bassett | Aaron P Bassett | — | (760) 716 6122 | Electricians | Vista · San Diego County | — | — |
| Aaron Pak | Aaron Pak | — | (213) 605 5321 | Electricians | Chula Vista · San Diego County | — | — |
| Aaron Pratt Construction | Aaron Warner Pratt | — | (760) 535 9895 | GC, remodel, ADU | Ramona · San Diego County | — | — |
| Aaron Ramos Electric Company | Aaron Teddy Ramos | contact@claycoelectric.org | (619) 990 2002 | Electricians | San Diego · San Diego County | — | — |
| Aaron Randall Minnier | Aaron Randall Minnier | — | (858) 486 1585 | Electricians | La Jolla · San Diego County | — | — |
| Aaron Stryker Electric | Aaron Michael Stryker | eddie.haro@electricare.com | (760) 801 2541 | Electricians | Oceanside · San Diego County | — | — |
| Aaron's Concrete Construction | Aaron Joseph Peterson | — | (619) 889 8119 | Other | Alpine · San Diego County | — | — |
| Aaron's Tile And Stone | Aaron's Tile And Stone | — | (858) 705 0851 | Other | San Diego · San Diego County | — | — |
| Aarons Bathtub Refinishing Corp | Aaron Eliud Andrade | — | (619) 829 3975 | Other | Chula Vista · San Diego County | — | — |
| Ab Arzola Flooring INC | Abimael Arzola | — | (619) 782 1855 | Other | Chula Vista · San Diego County | — | — |
| Ab Construction Clean Up Services | Barnes Ahmed | — | (858) 518 1299 | Other | San Diego · San Diego County | — | — |
| Ab Electric | Thomas William Hensley | — | (619) 933 2027 | Electricians | Santee · San Diego County | — | — |
| Ab Engineering & Build LLC | Bashar Hazim Dawood Al Zakar | — | (619) 558 8031 | GC, remodel, ADU | El Cajon · San Diego County | — | — |
| Ab Home Repairs INC | Alejandro Bernal | guy@infinitydesignbuild.com | (619) 616 3874 | GC, remodel, ADU | Chula Vista · San Diego County | — | — |
| Ab Plumbing | Ab Plumbing | — | (619) 690 5926 | Other | Chula Vista · San Diego County | — | — |
| Abago Electric | Barrientos Abisai | — | (619) 804 4490 | Electricians | San Diego · San Diego County | — | — |
| Abalone Pool & Spa | Abalone Pool & Spa | — | (619) 889 7665 | Pool | La Mesa · San Diego County | — | — |
| Abba Construction | Bandegan Abraham | — | (858) 585 2020 | GC, remodel, ADU | Rancho Santa Fe · San Diego County | — | — |
| Abba Project Management | Alexander Stewart Buggy | — | (213) 940 0880 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Abbas Jodayri | Abbas Jodayri | — | (619) 277 8900 | GC, remodel, ADU | San Diego · San Diego County | — | — |
| Abbott Concrete | Abbott Concrete | — | (619) 977 6853 | Other | San Diego · San Diego County | — | — |
| Abbott Septic | Edmund Gerard Kapelczak | abbottsepticmktg@gmail.com | (760) 789 7054 | Other | Ramona · San Diego County | — | — |