| Alternative Structural Technologies INC | Glenn Paul Evans | — | (530) 676 6550 | Other | Shingle Springs · El Dorado County | — | — |
| Altitude Hardwood Flooring | Altitude Hardwood Flooring | — | (818) 472 5672 | Other | South Lake Tahoe · El Dorado County | — | — |
| Alvia Services INC | Steven Peter Viani | — | (916) 952 8503 | GC, remodel, ADU | Pilot Hill · El Dorado County | — | — |
| Always Painting | Kevin Wayne Raab | interested@domainmarket.com | (530) 318 6792 | Windows, patio, painters | South Lake Tahoe · El Dorado County | — | — |
| Am - Cro Electrical INC | Ante Tony Kurtovich | — | (650) 207 5791 | Electricians | Placerville · El Dorado County | — | — |
| Am Pacific Engineering | Am Pacific Engineering | — | (916) 618 4989 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Amacker Construction Co | Mike Allen Amacker | — | (530) 544 2039 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Amano Electric | Khaleghi Saeid | support@amanoelectric.com | (916) 793 7672 | Electricians | El Dorado Hills · El Dorado County | — | — |
| Amazing Home Builder | Amazing Home Builder | — | (916) 320 2969 | GC, remodel, ADU | Rescue · El Dorado County | — | — |
| Ambp INC | Igor Timoshin | — | (916) 699 2534 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Amc Heating & Air Conditioning/construction | Adam Matthew Corsiglia | — | (916) 215 9273 | HVAC | Cameron Park · El Dorado County | — | — |
| Amcon Enterprises | Harvinder Singh| Singh Dhillon Harvinder Dhillon | — | (916) 204 8715 | Windows, patio, painters | El Dorado Hills · El Dorado County | — | — |
| Ameg Enterprises LLC | David Gonzales | — | (916) 834 1162 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Ameri Turf Hydroseed | Ameri Turf Hydroseed | — | (530) 957 7801 | Other | Placerville · El Dorado County | — | — |
| America's Quality Roofing | Chamorro Octavio Diaz | — | (530) 206 6727 | Other roofers | Placerville · El Dorado County | — | — |
| American Eagle Painting | American Eagle Painting | — | (530) 919 7612 | Windows, patio, painters | Placerville · El Dorado County | — | — |
| American Eagle Roofing & Gutters | Sean Patrick Kennedy | — | (916) 671 2915 | Other roofers | Shingle Springs · El Dorado County | — | — |
| American Lab Builders | Joseph Bacci Zanetell | — | (530) 318 0770 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| American River Fence | American River Fence | — | (916) 995 2556 | Other | Lotus · El Dorado County | — | — |
| American River Tree Expert Company | Ross Alexander Lee | — | (530) 906 3098 | Tree | Placerville · El Dorado County | — | — |
| American Windmill | American Windmill | — | (530) 644 3008 | Other | Diamond Springs · El Dorado County | — | — |
| Amg Construction | Alex Michael Germain | info@amg-construction.co.uk | (530) 416 6624 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Amphibious Aquatics | Amphibious Aquatics | — | (916) 390 1852 | Pool | Somerset · El Dorado County | — | — |
| Anaheim Swimming Pool Service | Douglas Thomas Feeney | — | (530) 721 7743 | Pool | South Lake Tahoe · El Dorado County | — | — |
| Anderson Pacific Builders INC | Justin Emanuel Anderson | — | (916) 281 5497 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Andre Peterson Construction | Andre Marlin Peterson | — | (775) 691 4445 | GC, remodel, ADU | Somerset · El Dorado County | — | — |
| Andrew B Wilcox Const | Andrew B Wilcox Const | — | (916) 205 0992 | GC, remodel, ADU | Cool · El Dorado County | — | — |
| Andrew Mora | Andrew Mora | — | (530) 919 3287 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Angel's Landscape Services INC | Flores Angel | contact@angelslandscapeservice.com | (530) 409 1926 | Windows, patio, painters | Rescue · El Dorado County | — | — |
| Anj Services DBA Anj Plumbing | John Fernando Cipres | — | (916) 993 1190 | Electricians | El Dorado Hills · El Dorado County | — | — |
| Anthony C Piscitelli Finish Craftsman | Anthony C Piscitelli Finish Craftsman | — | (530) 308 4804 | GC, remodel, ADU | South Lake Tahoe · El Dorado County | — | — |
| Antonina Borisov | Antonina Borisov | — | (916) 532 1963 | GC, remodel, ADU | El Dorado Hills · El Dorado County | — | — |
| Anzelc Consulting | Anzelc Consulting | — | (916) 997 6959 | GC, remodel, ADU | Shingle Springs · El Dorado County | — | — |
| Apconnor Construction | Andrew Patrick Connor | — | (530) 417 6311 | GC, remodel, ADU | Camino · El Dorado County | — | — |
| Apex Plumbing | Ghassan Hikmat Zeidan | — | (925) 240 3011 | Other | Camino · El Dorado County | — | — |
| Apollo Screen And Shade | Craig James Roberts | — | (916) 542 2900 | Other | El Dorado Hills · El Dorado County | — | — |
| Aqua Artist | Aqua Artist | aqutist-shibuya@ai.tnc.ne.jp | (530) 391 0575 | Pool | Diamond Springs · El Dorado County | — | — |
| Aquaman Pool Service INC | Karl Gustav Johnson | — | (916) 933 4882 | Pool | El Dorado Hills · El Dorado County | — | — |
| Aquilina Hardwood Floors | Aquilina Hardwood Floors | — | (530) 318 7404 | Other | South Lake Tahoe · El Dorado County | — | — |
| Ar Electric | Ar Electric | — | (760) 450-6953 | Electricians | Escondido · El Dorado County | — | — |