| James Brian Harris | James Brian Harris | — | (415) 314 5831 | Other | Riverside · Riverside County | — | — |
| James Bunn | James Bunn | — | (951) 326 0939 | Windows, patio, painters | Temecula · Riverside County | — | — |
| James Butler Heating And Air | James Lemar Butler | — | (951) 473 3597 | HVAC | Winchester · Riverside County | — | — |
| James C Bengtson Jr | James C Bengtson Jr | — | (951) 534 6024 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| James Cole | James Cole | — | (951) 378 7283 | GC, remodel, ADU | Wildomar · Riverside County | — | — |
| James Curtis Taylor | James Curtis Taylor | — | (951) 233 4345 | Other | Murrieta · Riverside County | — | — |
| James Daniel Elliott | James Daniel Elliott | james.elliott.contact@gmail.com | (951) 784 7816 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| James E Hundley | James E Hundley | — | (951) 296 5225 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| James Foley Pools & Spas | James Foley Pools & Spas | — | (760) 601 6003 | Windows, patio, painters | Rancho Mirage · Riverside County | — | — |
| James French Mechanical | James French Mechanical | — | (951) 440 7311 | HVAC | Wildomar · Riverside County | — | — |
| James George Crosby | James George Crosby | — | (951) 775 9595 | Pool | Temecula · Riverside County | — | — |
| James Hartman | James Hartman | — | (760) 578 7339 | Other | La Quinta · Riverside County | — | — |
| James Horecka Custom Designs | James Horecka Custom Designs | — | (951) 306 2340 | GC, remodel, ADU | Winchester · Riverside County | — | — |
| James Joseph Cocca | James Joseph Cocca | — | (951) 532 0242 | GC, remodel, ADU | Temecula · Riverside County | — | — |
| James Koontz | James Koontz | — | (951) 736 7980 | Electricians | Corona · Riverside County | — | — |
| James Lee Saathoff DBA J L S Engineering | J L S Engineering | — | (951) 685 3427 | Other | Jurupa Valley · Riverside County | — | — |
| James M Doolittle | James M Doolittle | — | (951) 378 6754 | Other | Banning · Riverside County | — | — |
| James M Moore Construction | James Michael Moore | — | (760) 574 2668 | GC, remodel, ADU | Bermuda Dunes · Riverside County | — | — |
| James M Prestininzi | James M Prestininzi | — | (760) 728 5502 | HVAC | Wildomar · Riverside County | — | — |
| James Manietta | James Manietta | — | (951) 316 5332 | Electricians | Idyllwild · Riverside County | — | — |
| James Mc Minn INC | James Arlis Mc Minn | — | (909) 514 1231 | Other | Riverside · Riverside County | — | — |
| James Michael Gutierrez | James Michael Gutierrez | — | (714) 728 3170 | Other | Jurupa Valley · Riverside County | — | — |
| James Michael Henson Jr | James Michael Henson Jr | — | (951) 850 3150 | GC, remodel, ADU | Perris · Riverside County | — | — |
| James Michael Pratt | James Michael Pratt | — | (951) 288 4433 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| James P Murphy Construction | James Paul Murphy | — | (909) 717 6713 | Electricians | Riverside · Riverside County | — | — |
| James Painting Co | Kee Hyuk Kim | — | (714) 826 1980 | Windows, patio, painters | Corona · Riverside County | — | — |
| James Patrick Linehan | James Patrick Linehan | — | (951) 805 1262 | Electricians | Sun City · Riverside County | — | — |
| James R Julian | James R Julian | — | (714) 719 6023 | Other | Blythe · Riverside County | — | — |
| James Richard Ciccone DBA Wine Country Pools | Wine Country Pools | — | (951) 699 4321 | Pool | Temecula · Riverside County | — | — |
| James Staab INC | James Robert Staab | — | (909) 548 9628 | GC, remodel, ADU | Norco · Riverside County | — | — |
| James Valdez General Building Contractor | James Valdez General Building Contractor | — | (323) 316 5126 | GC, remodel, ADU | Hemet · Riverside County | — | — |
| James Vermilya Electric | James Edward Vermilya | — | (951) 434 9810 | Electricians | Sun City · Riverside County | — | — |
| James West Painting | James West Painting | — | (909) 740 4639 | Windows, patio, painters | San Jacinto · Riverside County | — | — |
| James William Stiles | James William Stiles | — | (951) 505 8206 | GC, remodel, ADU | Moreno Valley · Riverside County | — | — |
| James Yoast Tile INC | James Carl Yoast | — | (760) 342 0050 | Other | Indio · Riverside County | — | — |
| Jamie Avila Landscape | Jamie Avila Landscape | — | (951) 757 5964 | Windows, patio, painters | Menifee · Riverside County | — | — |
| Janisch Building Solutions | Janisch Building Solutions | — | (760) 275 9082 | GC, remodel, ADU | La Quinta · Riverside County | — | — |
| Jaramillo Construction | Brian Anthony Jaramillo | — | (951) 538 8353 | GC, remodel, ADU | Riverside · Riverside County | — | — |
| Jarco Roofing Solar Construction | Ronald Roy Heartz | — | (951) 943 3344 | Other roofers | Perris · Riverside County | — | — |
| Jared Reynolds | Jared Reynolds | — | (951) 764 7809 | GC, remodel, ADU | Lake Elsinore · Riverside County | — | — |