| 152 Concrete Concepts INC | Rene Villalobos | — | (209) 639 8050 | Other | Los Banos · Merced County | — | — |
| 2 J's Plumbing Construction | Juan Ochoa Lomeli | — | (209) 233 7078 | Other | Merced · Merced County | — | — |
| 3:16 Plumbing INC | Israel Joel Vasquez | — | (669) 206 7177 | Other | Los Banos · Merced County | — | — |
| A & A Granite Creations INC DBA A & A Granite Tile Creations | Covarrubias Adolfo Canela | — | (408) 706 0985 | Other | Los Banos · Merced County | — | — |
| A D Tile And Granite | Amandeep Singh Manesh | — | (209) 812 6412 | Other | Atwater · Merced County | — | — |
| A Plus Plumbing LLC | Kevin Edward Cordeiro | aplusplumbingser@gmail.com | (209) 854 1800 | Other | Gustine · Merced County | — | — |
| A S Seamless Gutters | A S Seamless Gutters | — | (209) 631 1458 | Other | Atwater · Merced County | — | — |
| A To Z Construction Corp | Jose Angel Zamudio | — | (209) 564 6941 | Other | Merced · Merced County | — | — |
| A1 Water Quality | A1 Water Quality | — | (209) 587 1708 | Other | Delhi · Merced County | — | — |
| Aaa Concrete LLC | Abrego Jorge Calderon | — | (408) 713 8442 | Other | Los Banos · Merced County | — | — |
| Acv Welding And Fabrication | Saul Adolfo Lua | — | (209) 643 3137 | Other | Atwater · Merced County | — | — |
| Advanced Copper Systems Plumbing Mechanical | Gustavo Hernandez | — | (209) 261 0938 | Other | Gustine · Merced County | — | — |
| Aem Concrete | Jose Dejesus Torres | — | (209) 600 0644 | Other | Merced · Merced County | — | — |
| Aguilar's Tile | Aguilar's Tile | — | (209) 769 8165 | Other | Atwater · Merced County | — | — |
| Ak Plumbing And Drain Solutions | Ak Plumbing And Drain Solutions | — | (209) 864 5229 | Other | Atwater · Merced County | — | — |
| Alberto's Hardwood Floors INC | Herrera Gonzalez Alberto | info@albertoshardwoodfloors.com | (408) 650 2277 | Other | Los Banos · Merced County | — | — |
| All About Tile INC | Israel Sandoval Mendoza | — | (209) 325 6091 | Other | Winton · Merced County | — | — |
| All American Excavation INC | Joseph Charles Moraga | — | (209) 769 7130 | Other | Merced · Merced County | — | — |
| All Central Plumbing | All Central Plumbing | — | (209) 761 2794 | Other | Merced · Merced County | — | — |
| All Environmental Services LLC | Espinoza Brandon | — | (800) 577 1761 | Other | Winton · Merced County | — | — |
| All Precision Plumbing INC | Jeffrey Allen Pavey | — | (209) 385 1250 | Other | Merced · Merced County | — | — |
| All Pro Pipeline And Concrete Service INC | Darrell Dustin Monroe | — | (209) 648 6897 | Other | Hilmar · Merced County | — | — |
| All State Plumbing | All State Plumbing | — | (209) 756 5173 | Other | Livingston · Merced County | — | — |
| All Valley Plumbing | All Valley Plumbing | — | (209) 445 1357 | Other | Winton · Merced County | — | — |
| Allstar Fabrication + Welding | Jason David Aguirre | — | (209) 617 0221 | Other | Atwater · Merced County | — | — |
| Alpha Omega Data Solutions INC | Raymond Jr Razo | — | (209) 349 2553 | Other | Los Banos · Merced County | — | — |
| Alvarado Stone Slab Fabrication | Alvarado Stone Slab Fabrication | — | (209) 276 8743 | Other | Livingston · Merced County | — | — |
| Always Rescue Plumbing INC | Daniel Antonio Munoz Rodas | — | (669) 271 1442 | Other | Los Banos · Merced County | — | — |
| American Hmi Insulation | American Hmi Insulation | — | (209) 675 6403 | Other | Dos Palos · Merced County | — | — |
| Amerifab Welding | Mark Anthony Ii Tovar | — | (209) 449 2862 | Other | Merced · Merced County | — | — |
| Amre Construction Clean Up Services | Aguilar Jorge Garcia | — | (209) 678 7242 | Other | Delhi · Merced County | — | — |
| Anaya Concrete | Anaya Concrete | — | (209) 489 5475 | Other | Santa Nella · Merced County | — | — |
| Anderson's Flooring | Anderson's Flooring | — | (209) 358 2512 | Other | Atwater · Merced County | — | — |
| Antonio Valdez Concrete | Antonio Valdez Concrete | — | (209) 276 3767 | Other | Atwater · Merced County | — | — |
| Aqua Supreme | Manuel Mendez | — | (831) 449 4679 | Other | Los Banos · Merced County | — | — |
| Arauz Simple Fence Repair | Arauz Simple Fence Repair | — | (408) 628 9406 | Other | Los Banos · Merced County | — | — |
| Associates Lock And Safe Service | Julia Hope Martinez | — | (209) 722 7944 | Other | Merced · Merced County | — | — |
| Atwater Drywall | Atwater Drywall | — | (209) 326 3575 | Other | Atwater · Merced County | — | — |
| Atwater Metal Fabrication INC | Ian Koakane Hamilton | — | (209) 676 8254 | Other | Atwater · Merced County | — | — |
| Atwater Tile | Atwater Tile | — | (209) 358 1555 | Other | Winton · Merced County | — | — |