| J R Castillo Construction | Joel Rizado Castillo | — | (559) 816 2343 | GC, remodel, ADU | Hanford · Kings County | — | — |
| J R Scott Construction INC | John Robert Scott | — | (559) 584 6871 | GC, remodel, ADU | Hanford · Kings County | — | — |
| J S N Backflow Services | Joseph Anthony San Nicolas | — | (559) 212 5122 | Other | Avenal · Kings County | — | — |
| J V Concrete Construction INC | Jaime Hernandez Vanegas | — | (559) 358 5214 | Other | Hanford · Kings County | — | — |
| J W Daulton Construction INC | John William Daulton | — | (931) 205 2750 | Electricians | Hanford · Kings County | — | — |
| J W Welding | J W Welding | — | (559) 707 5029 | GC, remodel, ADU | Hanford · Kings County | — | — |
| Jag Metal Construction INC | John Charles Jr Gibson | — | (559) 469 5503 | Other | Lemoore · Kings County | — | — |
| Jaime Vargas | Jaime Vargas | — | (559) 368 1952 | Other | Corcoran · Kings County | — | — |
| Jay's Construction INC | Jay Douglas Paulson | — | (559) 924 5662 | GC, remodel, ADU | Lemoore · Kings County | — | — |
| Jefecito's Residential Remodeling Services INC | Lopez Edgar Vargas | — | (559) 670 8772 | GC, remodel, ADU | Hanford · Kings County | — | — |
| Jenkins Electric LLC | Aaron Michael Jenkins | — | (559) 998 9591 | Electricians | Hanford · Kings County | — | — |
| Jim Harp Stainless Steel Welding INC | James Steven Harp | — | (559) 582 6011 | Other | Hanford · Kings County | — | — |
| Joe Jr's Tree Service INC | Joe Mendes Jr Dias | — | (559) 836 2450 | Tree | Lemoore · Kings County | — | — |
| John Richard Murray Jr | John Richard Murray Jr | — | (559) 572 9610 | Other roofers | Hanford · Kings County | — | — |
| Jones Sanitation | Jones Sanitation | jonessanitationga@gmail.com | (559) 259 4061 | Other | Lemoore · Kings County | — | — |
| Josef Jesse Hurtado | Josef Jesse Hurtado | — | (559) 679 8943 | GC, remodel, ADU | Hanford · Kings County | — | — |
| Jr Electric | Joshua Michael Reyes | — | (559) 901 8858 | Electricians | Lemoore · Kings County | — | — |
| Jr's Heating And Cooling | Jr's Heating And Cooling | — | (559) 304 0472 | HVAC | Lemoore · Kings County | — | — |
| Jsc | Larry James Spanke | — | (559) 469 4050 | GC, remodel, ADU | Hanford · Kings County | — | — |
| Just Better Air Conditioning And Heating | Jose Ricardo Lemos | — | (559) 572 7499 | HVAC | Hanford · Kings County | — | — |
| Kelly Glenn Granger | Kelly Glenn Granger | — | (559) 587 3080 | Electricians | Hanford · Kings County | — | — |
| Kemble Hydro Tech INC | Richard Joseph Kemble | — | (559) 992 3166 | Other | Corcoran · Kings County | — | — |
| Ken Champlin Enterprises | Kenneth Calvin Champlin | — | (559) 804 9582 | Other roofers | Hanford · Kings County | — | — |
| Kennies Indoor Comfort Specialists INC | Stephen Bradley Stout | — | (559) 584 3916 | HVAC | Hanford · Kings County | — | — |
| Kimber Regan | Kimber Regan | — | (559) 415 9254 | Other | Hanford · Kings County | — | — |
| King Certified Electrician | King Certified Electrician | — | (949) 326-5395 | Electricians | Laguna Hills · Kings County | — | — |
| King Electric | King Electric | — | (909) 454-1785 | Electricians | Redlands · Kings County | — | — |
| King Inspection Services | King Inspection Services | — | (619) 261-9022 | Inspectors | Lakeside · Kings County | — | — |
| King Management LLC | King Management LLC | — | (831) 475-9100 | Property managers | Soquel · Kings County | — | — |
| King Master Water Damage Restoration | King Master Water Damage Restoration | dave@lab6.com | (661) 209-0078 | Restoration | Lancaster · Kings County | — | — |
| King Painting | King Painting | — | (888) 595-5464 | Windows, patio, painters | Yorba Linda · Kings County | — | — |
| King Properties Inc. | King Properties Inc. | — | (530) 753-0121 | Property managers | Davis · Kings County | — | — |
| King Property Management LLC | King Property Management LLC | — | (562) 882-7933 | Property managers | Long Beach · Kings County | — | — |
| King Pump And Well INC | Ryan Christopher King | — | (559) 775 2070 | Other | Hanford · Kings County | — | — |
| King's Comfort & Climate Solutions | King's Comfort & Climate Solutions | — | (661) 519-4974 | HVAC | Lancaster · Kings County | — | — |
| Kings | Kings | — | (760) 844-2326 | Restoration | Palm Desert · Kings County | — | — |
| Kings Arms Properties | Kings Arms Properties | — | (310) 277-3118 | Property managers | Beverly Hills · Kings County | — | — |
| Kings Community Action Organization Incorporated | Darren Christopher Edwards | — | (559) 582 4386 | GC, remodel, ADU | Hanford · Kings County | — | — |
| Kings County Air Conditioning INC | Mark Warren Mathis | — | (559) 584 4383 | HVAC | Armona · Kings County | — | — |
| Kings County Glass | Steve Russel Payne | kcg@kingscountyglass.com | (559) 584 8150 | Windows, patio, painters | Hanford · Kings County | — | — |