| 1 Source Electric | Jeffrey Ryan Vickland | — | (916) 844 8811 | Electricians | Cameron Park · El Dorado County | — | — |
| 1776 Construction | Gregory Allen Atkins | — | (530) 417 3717 | GC, remodel, ADU | Somerset · El Dorado County | — | — |
| 1st Stop Fencing | 1st Stop Fencing | — | (916) 337 1590 | Other | Shingle Springs · El Dorado County | — | — |
| 2T Builders | Daniel Christopher Pruitt | — | (530) 651 3085 | GC, remodel, ADU | Georgetown · El Dorado County | — | — |
| 3-ways Painting INC | Agustin Garcia-Garmendia | — | (415) 235 6952 | Windows, patio, painters | Cameron Park · El Dorado County | — | — |
| 3D Tile | 3D Tile | — | (209) 304 7034 | Other | Cool · El Dorado County | — | — |
| 3M Utilities | 3M Utilities | — | (650) 235 0525 | Other | El Dorado · El Dorado County | — | — |
| 4291 Tree Services LLC | Evan William Jones | impallari@gmail.com | (844) 772 4291 | Other | Placerville · El Dorado County | — | — |
| 5R Construction Company INC | Amarjit Singh Sangha | — | (916) 804 3302 | GC, remodel, ADU | Cameron Park · El Dorado County | — | — |
| A & W Construction | William Lee Sheble | — | (530) 305 1510 | GC, remodel, ADU | El Dorado · El Dorado County | — | — |
| A - Team Tree Service INC | Adam Richard Rohrbough | — | (530) 306 9613 | Tree | Pollock Pines · El Dorado County | — | — |
| A - Total Fire Protection Company INC | Monte Lee Osborn | accounting@atotalfireprotection.com | (530) 672 8495 | GC, remodel, ADU | Cameron Park · El Dorado County | — | — |
| A And Z Construction Services | Zen Orion Fuller | — | (530) 919 1366 | GC, remodel, ADU | Georgetown · El Dorado County | — | — |
| A Better Choice Painting | A Better Choice Painting | — | (916) 966 9700 | Windows, patio, painters | Placerville · El Dorado County | — | — |
| A C A Builders INC | Joseph Andrew Cunha | — | (510) 207 4827 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| A C T C Young INC | Joshua Eugene Young | — | (916) 765 1308 | Other | Placerville · El Dorado County | — | — |
| A Caro Construction Company INC | Caro Abel | anapbm@gmail.com | (530) 318 0793 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| A Cut Above Construction | Jay Howard Meezan | — | (916) 532 5356 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| A D S Construction | Alfred Daniel Stevens | — | (530) 957 5301 | GC, remodel, ADU | Rescue · El Dorado County | — | — |
| A E Roofing | Eredia Antonio | aeroofingsm@gmail.com | (909) 234 8415 | Other roofers | Cameron Park · El Dorado County | — | — |
| A M Gardening Services | Pliego Mendoza Adrian | — | (530) 363 5406 | Windows, patio, painters | Placerville · El Dorado County | — | — |
| A N T Construction Co Always Neat & Tidy Ant | Russell Vaughn Tarrant | — | (530) 417 2780 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| A Noll INC DBA Ajn Construction | Alexander Johan Noll | — | (530) 622 5429 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| A P Backhoe & Trucking Service INC | Antonio Teixeira Poipao | — | (925) 864 4344 | Other | Placerville · El Dorado County | — | — |
| A P Builders | A P Builders | — | (530) 313 3457 | Electricians | Lotus · El Dorado County | — | — |
| A Plus Construction Specialist INC | Steven Earl Woehler | — | (916) 704 6484 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| A Pride In Paint | A Pride In Paint | — | (530) 544 9701 | Windows, patio, painters | South Lake Tahoe · El Dorado County | — | — |
| A Valley Custom Painting | A Valley Custom Painting | — | (916) 300 4061 | Windows, patio, painters | Cameron Park · El Dorado County | — | — |
| A W M Construction | Andrew William Mcculloch | — | (530) 721 0380 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| A Work Of Art | A Work Of Art | — | (530) 318 5575 | Windows, patio, painters | South Lake Tahoe · El Dorado County | — | — |
| A-1 Hawkins Construction INC | Dillon Earl Hawkins | — | (530) 903 1483 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| A-viking Plumbing & Fire Protection | A-viking Plumbing & Fire Protection | — | (530) 518 4117 | GC, remodel, ADU | Greenwood · El Dorado County | — | — |
| A1 Affordable Plumbing & Water Heaters | Shtulvarg Zeev | — | (916) 488 7283 | Other | El Dorado Hills · El Dorado County | — | — |
| Aaa Roofing INC | Douglas James Mac Donald | — | (530) 544 4700 | Other roofers | So Lake Tahoe · El Dorado County | — | — |
| Aaron Bryant Construction | Aaron Troy Bryant | — | (916) 801 2640 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| Aaron Culp Construction | Aaron Joseph Culp | — | (530) 541 6788 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Aaron Hupcey Construction | Aaron Michael Hupcey | — | (530) 306 8444 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| Aaron Painting | Aaron Painting | aaronpainting@sbcglobal.net | (530) 545 0411 | Windows, patio, painters | South Lake Tahoe · El Dorado County | — | — |
| Aasen Construction | Steven Roy Aasen | — | (530) 672 9776 | GC, remodel, ADU | Cameron Park · El Dorado County | — | — |
| Abbruzzese General Engineering | Abbruzzese General Engineering | — | (916) 458 1680 | GC, remodel, ADU | Rescue · El Dorado County | — | — |