| Neagu General Contractor | Neagu General Contractor | — | (510) 909 7247 | GC, remodel, ADU | San Leandro · Alameda County | — | — |
| Neale Ferguson | Neale Ferguson | — | (725) 858 4844 | GC, remodel, ADU | Pleasanton · Alameda County | — | — |
| Near West Cabinets | Near West Cabinets | — | (510) 828 2734 | Other | Hayward · Alameda County | — | — |
| Nedco Construction Development Co | Nadeem Shihadi Moualem | — | (510) 657 6027 | GC, remodel, ADU | Fremont · Alameda County | — | — |
| Neighbor Electric Ca INC | Xiaolong Jia | — | (347) 988 9836 | Electricians | Fremont · Alameda County | — | — |
| Neil Electric | Troy Jeffrey Neil | — | (510) 470 2695 | Electricians | Castro Valley · Alameda County | — | — |
| Neil Moore | Neil Moore | — | (510) 881 5625 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| Neil Oellrich | Neil Oellrich | — | (925) 980 9735 | GC, remodel, ADU | Livermore · Alameda County | — | — |
| Nelco INC | Marie Antoinette Reyes | — | (510) 865 8250 | GC, remodel, ADU | Alameda · Alameda County | — | — |
| Nelson Morales Juarez | Nelson Morales Juarez | — | (510) 978 5656 | Windows, patio, painters | Oakland · Alameda County | — | — |
| Nelson T Lewis Construction Co INC | Thomas Nelson Lewis | — | (510) 581 3362 | GC, remodel, ADU | Dublin · Alameda County | — | — |
| Nema Construction | Farahani Ali | afshinzandi@yahoo.com | (510) 525 2398 | Electricians | Albany · Alameda County | — | — |
| Neon Works INC | James Paul Jr Rizzo | — | (510) 652 5900 | Other | Oakland · Alameda County | — | — |
| Nep Electric | Neptali Penaloza Pineda | — | (510) 276 7305 | Electricians | Hayward · Alameda County | — | — |
| Nestly Heating And Cooling | Rahshad Lerahn Slocum | — | (510) 915 1508 | HVAC | Oakland · Alameda County | — | — |
| Net Electric INC | Nathaniel Elliott Tyler | info@net-electric.com | (866) 334 2400 | Electricians | San Leandro · Alameda County | — | — |
| Network Cabling Company | Ronald Dee Owens | — | (925) 337 3514 | Other | Livermore · Alameda County | — | — |
| Netzero Builders INC | Ornelas Jesus | — | (510) 999 2963 | Other roofers | Hayward · Alameda County | — | — |
| Neufeld Enterprises INC DBA Jerry's Fireplaces & Chimney Services | Kimberly Diane Neufeld | — | (510) 471 5601 | Other | Hayward · Alameda County | — | — |
| New Age Electric INC | Bryce Alan Rocklage | info@newageelectric.com | (408) 279 8787 | Electricians | Pleasanton · Alameda County | — | — |
| New Bay Builders | Idan Cohen | — | (510) 295 3205 | GC, remodel, ADU | Alameda · Alameda County | — | — |
| New Century Marble & Granite | Ou Fenhui | — | (510) 347 1818 | GC, remodel, ADU | San Leandro · Alameda County | — | — |
| New Century Roofing Exteriors | Brian Thomas Edwards | — | (510) 282 7403 | Other roofers | Alameda · Alameda County | — | — |
| New Concept Roofing INC | Ortiz Salvador Contreras | newconceptroofing@gmail.com | (510) 938 9851 | Other roofers | Newark · Alameda County | — | — |
| New Corporation Drywall INC | Victor Manuel Salazar Arellano | — | (510) 460 2850 | Other | Castro Valley · Alameda County | — | — |
| New Design Flooring LLC | Brian Edward Langham | — | (925) 876 6331 | Other | Pleasanton · Alameda County | — | — |
| New Earth Landscaping | New Earth Landscaping | — | (510) 295 7604 | Windows, patio, painters | Castro Valley · Alameda County | — | — |
| New Era Rooting & Plumbling | New Era Rooting & Plumbling | — | (510) 589 7303 | Other | Oakland · Alameda County | — | — |
| New Generation Construction & Remodeling INC | Jose Armando Moreno | — | (510) 304 8378 | GC, remodel, ADU | Castro Valley · Alameda County | — | — |
| New Generation Plumbing | New Generation Plumbing | — | (408) 428 2985 | Other | San Leandro · Alameda County | — | — |
| New Horizons Construction | Martinez Lawrence | — | (510) 377 6829 | GC, remodel, ADU | Hayward · Alameda County | — | — |
| New Image Landscape Company | Brian Thomas Takehara | — | (510) 226 9191 | Windows, patio, painters | Fremont · Alameda County | — | — |
| New Image Landscapers | Ulises Eduardo Rodriguez Gonzalez | — | (831) 348 7400 | Windows, patio, painters | Castro Valley · Alameda County | — | — |
| New Leaf Plumbing & Drains LLC | Kendall Lamar Tanouye | — | (510) 461 5595 | Other | Union City · Alameda County | — | — |
| New Line Drywall | Victor Manuel Salazar Arellano | info@newlinedrywall.com | (415) 756 9502 | Other | Castro Valley · Alameda County | — | — |
| New Method Floor Company Incorporated | Linda Jean Stutzman | — | (510) 530 3636 | Other | Oakland · Alameda County | — | — |
| New Millennium Electric INC | Edgar Basilio Enriquez | — | (510) 200 4986 | Electricians | San Leandro · Alameda County | — | — |
| New Moon Landscape | New Moon Landscape | — | (510) 332 5822 | Windows, patio, painters | Oakland · Alameda County | — | — |
| New Openings Construction Company | Lawrence Charles Wolfley | — | (510) 549 6014 | GC, remodel, ADU | Berkeley · Alameda County | — | — |
| New Sky Builders LLC | Steve Tuan Chau | — | (408) 677 6139 | Electricians | Fremont · Alameda County | — | — |