| Arbor Green | Arbor Green | — | (530) 318 5124 | Windows, patio, painters | South Lake Tahoe · El Dorado County | — | — |
| Arbor Vitae Enterprises INC | Luis Ignacio Cruz Moran | — | (661) 330 8255 | Other | Cameron Park · El Dorado County | — | — |
| Arbuckles Homes To Go INC | Scott Edward Arbuckle | — | (916) 832 3491 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Arc Empire INC DBA Rutter Fencing And Gates | Conley Jack Rutter | — | (530) 718 0051 | Other | Greenwood · El Dorado County | — | — |
| Ardor Consulting Corporation | Larry Misutyo Ito | — | (530) 672 0638 | Other | El Dorado Hills · El Dorado County | — | — |
| Arjil Tile Works INC | Anthony Joseph Iii Arjil | — | (530) 305 6531 | Other | El Dorado Hills · El Dorado County | — | — |
| Armour Shield Roofing | Thomas Frank Vanda | — | (530) 306 1662 | Other roofers | Rescue · El Dorado County | — | — |
| Armstrong Residential INC | Brian Armstrong | — | (530) 333 3592 | GC, remodel, ADU | Greenwood · El Dorado County | — | — |
| Armstrong Tree Service LLC | Zachary John Armstrong | — | (530) 545 3504 | Tree | South Lake Tahoe · El Dorado County | — | — |
| Arnel Sitchon Construction | Sitchon Arnel | — | (530) 308 5648 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Around The Lake Roofing | Sergio Duran Berdin | — | (530) 386 5438 | Other roofers | South Lake Tahoe · El Dorado County | — | — |
| Arrow Electric | David Shane Murphy | — | (408) 645 7570 | Electricians | Shingle Springs · El Dorado County | — | — |
| Arrow Fence | Armando Lepe Ramirez | — | (916) 586 0475 | Other | Shingle Springs · El Dorado County | — | — |
| Arthur Chesser Drywall | Arthur Chesser Drywall | — | (530) 906 1093 | Other | Somerset · El Dorado County | — | — |
| Arthur Joseph Eppler | Arthur Joseph Eppler | — | (408) 876 3553 | GC, remodel, ADU | Grizzly Flats · El Dorado County | — | — |
| Artigiano Tile And Stone | Artigiano Tile And Stone | — | (530) 957 6488 | Other | Diamond Springs · El Dorado County | — | — |
| Artinian Builder | Artinian Builder | — | (530) 318 5985 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Artisticrat Property Improvements INC | Gerald Dean Iii Arthur | — | (530) 724 6848 | Windows, patio, painters | South Lake Tahoe · El Dorado County | — | — |
| As You Like It Construction Company | Anthony Edward Fagundes | — | (530) 903 6246 | GC, remodel, ADU | Cameron Park · El Dorado County | — | — |
| Ascendant Tree LLC | Kyle Alexander Connally | — | (530) 966 3337 | Other | Lotus · El Dorado County | — | — |
| Ashley H Wilson | Ashley H Wilson | — | (530) 919 1407 | Electricians | Placerville · El Dorado County | — | — |
| Asi General Contractors INC | Anthony Louis Anzelc | — | (916) 373 0707 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Atc Service INC | Timothy John Mateo | — | (650) 968 1100 | HVAC | El Dorado Hills · El Dorado County | — | — |
| Atelier Development Interest Group | Yadi Kavakebi | — | (916) 337 4660 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Atipok Enterprises | Frank Thomas Kopita | — | (916) 769 3050 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| Atkins Construction | Thomas Hugh Atkins | interested@domainmarket.com | (530) 663 6064 | GC, remodel, ADU | Somerset · El Dorado County | — | — |
| Atkinson Building & Development LLC | Andrew Maurice Atkinson | — | (530) 748 6403 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| Atlas Concrete Concepts | Atlas Concrete Concepts | — | (530) 933 2701 | Other | El Dorado · El Dorado County | — | — |
| Atlas Fence Company | David Wayne Stuhr | — | (916) 716 1704 | Other | Cameron Park · El Dorado County | — | — |
| Ault Construction Co | Christopher Jordan Ault | — | (916) 812 5123 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Austin's Pipeworks | Austin's Pipeworks | — | (530) 350 7162 | Other | Rescue · El Dorado County | — | — |
| Av Natural Stone Surfaces | Av Natural Stone Surfaces | — | (530) 405 6600 | Other | Diamond Springs · El Dorado County | — | — |
| Awa Concrete INC | Tony William Abreu | tony@awaconcrete.com | (530) 417 7558 | Other | Diamond Springs · El Dorado County | — | — |
| Axelson Iron Shop LLC | John Christopher Retta | john@axelsonironshop.com | (530) 541 1043 | Other | South Lake Tahoe · El Dorado County | — | — |
| Axis Building Solutions INC | Edward Mikhailovich Sevostyanchuk | — | (530) 363 0122 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| B & B High Voltage LLC | Gregory Lee Baird | — | (530) 303 2709 | Electricians | Diamond Springs · El Dorado County | — | — |
| B & B Locating INC | Christi Annette Bray | — | (530) 748 3284 | Other | Placerville · El Dorado County | — | — |
| B & M Mechanical Incorporated | Brian Anthony Castro | — | (530) 721 7690 | Other | South Lake Tahoe · El Dorado County | — | — |
| B C Construction | George Allen Jr Crook | — | (530) 391 3098 | GC, remodel, ADU | Placerville · El Dorado County | — | — |
| B C Electric INC | Chad Jay Wilkinson | — | (916) 337 9700 | Electricians | Rescue · El Dorado County | — | — |