| Hensley Construction | Robert Ronald Hensley | — | (831) 336 8544 | Other | Ben Lomond · Santa Cruz County | — | — |
| Hernandez Construction | Alvarez Alejandro Hernandez | oscarghernandezalberto@gmail.com | (669) 292 7723 | GC, remodel, ADU | Watsonville · Santa Cruz County | — | — |
| Hernandez Landscaping | Hernandez Landscaping | interested@domainmarket.com | (831) 234 6716 | Electricians | Santa Cruz · Santa Cruz County | — | — |
| Herranen Heating And Air | Herranen Heating And Air | — | (831) 247 9102 | HVAC | Ben Lomond · Santa Cruz County | — | — |
| Herreras Custom Cabinets | Herreras Custom Cabinets | — | (831) 566 7745 | Other | Watsonville · Santa Cruz County | — | — |
| Herrick Drexler Morgan | Herrick Drexler Morgan | — | (831) 706 0226 | Other | Felton · Santa Cruz County | — | — |
| Herschel Griggs Plumbing INC DBA Buddy Griggs Plumbing | Herschel Earl Griggs | — | (831) 325 4049 | Other | Santa Cruz · Santa Cruz County | — | — |
| High Peak Roofing INC | Jose Manuel Olvera Ortiz | — | (831) 740 9191 | Other roofers | Aptos · Santa Cruz County | — | — |
| High Performance Electric INC | Daniel Ramiro Iii Lozano | interested@domainmarket.com | (831) 761 2578 | Electricians | Aptos · Santa Cruz County | — | — |
| High Quality Finish Carpentry INC | Lopez Isela Sandoval | — | (209) 658 0034 | GC, remodel, ADU | Watsonville · Santa Cruz County | — | — |
| High Tide Real Estate & Property Management | High Tide Real Estate & Property Management | — | (831) 464-5017 | Property managers | Capitola · Santa Cruz County | — | — |
| Hightide Electrical Co LLC | Lucas Maciej Kokot | — | (831) 239 4369 | Electricians | Soquel · Santa Cruz County | — | — |
| Hill Built Construction | Steve Edward Hill | — | (831) 246 1023 | GC, remodel, ADU | Ben Lomond · Santa Cruz County | — | — |
| Hive Construction | Thomas Calvert | — | (415) 596 4239 | GC, remodel, ADU | Soquel · Santa Cruz County | — | — |
| Hm Insulation INC | Jiminez Hasani Morales | info@hminsulation.com | (831) 247 1575 | Other | Watsonville · Santa Cruz County | — | — |
| Hochler Construction | Richard Steven Hochler | — | (831) 818 0919 | GC, remodel, ADU | Scotts Valley · Santa Cruz County | — | — |
| Holcomb Home Improvement | Holcomb Home Improvement | — | (831) 234 1612 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Holm Drywall INC | Benjamin David Holm | — | (831) 359 0710 | Other | Santa Cruz · Santa Cruz County | — | — |
| Holt Construction | Robert D'auria Holt | — | (831) 419 8499 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Home Improvements | Home Improvements | — | (831) 345 5550 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Hoornbeck Electric | Leroy Richard Hoornbeck | — | (831) 239 6979 | Electricians | Santa Cruz · Santa Cruz County | — | — |
| Hope Painting | Hope Painting | — | (831) 331 5087 | Windows, patio, painters | Soquel · Santa Cruz County | — | — |
| Howard Construction | Thomas Leslie Howard | info@howardconstruction.com | (916) 444-6000 | GC, remodel, ADU | Ben Lomond · Santa Cruz County | — | — |
| Howard Liebenberg Construction | Howard R Liebenberg | — | (831) 226 9940 | Other | Felton · Santa Cruz County | — | — |
| Howard Meyer | Howard Meyer | — | (831) 251 5009 | Windows, patio, painters | Felton · Santa Cruz County | — | — |
| Howell Construction Co | Robert Randall Howell | howellconstr@yahoo.com | (831) 332 1433 | GC, remodel, ADU | Freedom · Santa Cruz County | — | — |
| Howerton Electric | John Henry Howerton | — | (831) 234 5687 | Electricians | Santa Cruz · Santa Cruz County | — | — |
| Howland Built INC | Rory Hoban Howland | rory@howlandbuilt.com | (831) 359 9529 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Hp Phoenix Construction INC | Andrew Seminerio | — | (831) 254 6782 | GC, remodel, ADU | La Selva Beach · Santa Cruz County | — | — |
| Huante Painting INC | Francisco Arias Huante | — | (831) 427 8179 | Windows, patio, painters | Capitola · Santa Cruz County | — | — |
| Hudson Brothers INC | Nathan Thomas Hudson | — | (831) 335 4431 | GC, remodel, ADU | Scotts Valley · Santa Cruz County | — | — |
| Hughes Construction | Roger Wedington Hughes | — | (831) 295 9876 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Hulphers Construction | Ivan John Hulphers | — | (831) 295 2802 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Hultzen Construction | Robert Lincoln Iii Hultzen | — | (831) 234 1168 | GC, remodel, ADU | Santa Cruz · Santa Cruz County | — | — |
| Hunter Metal Designs | Hunter Metal Designs | — | (831) 325 6713 | Other | Santa Cruz · Santa Cruz County | — | — |
| Hurst Construction Company | Hurst Andre | — | (831) 246 8000 | GC, remodel, ADU | Watsonville · Santa Cruz County | — | — |
| Hutchinson Construction | Jared Lee Hutchinson | — | (831) 331 7726 | GC, remodel, ADU | Boulder Creek · Santa Cruz County | — | — |
| Hwy 9 Plumbing | Hwy 9 Plumbing | — | (831) 610 8147 | Other | Boulder Creek · Santa Cruz County | — | — |
| Hydronica INC | Wyatt Cole Howard | — | (833) 493 7664 | Other | Soquel · Santa Cruz County | — | — |
| Hyperion Electric | Shaine Michael Pollard | myhyperionelectric@gmail.com | (831) 233 1627 | Electricians | Scotts Valley · Santa Cruz County | — | — |