Licensed General Building (B) contractors in Ontario, CA

The California Contractors State License Board (CSLB) lists 311 General Building (B) contractors in Ontario, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of June 27, 2026.

Showing 121–180 of 311 contractors

1. Heritage Design & Build LLC

   Ontario, CA · CSLB #1131358 · as of June 27, 2026
   Active · clear
2. Herron Construction INC

   Ontario, CA · CSLB #592387 · as of June 27, 2026
   Active · clear
3. High Quality Group

   Ontario, CA · CSLB #938452 · as of June 27, 2026
   Active · clear
4. High Ridge Construction INC

   Ontario, CA · CSLB #1028395 · as of June 27, 2026
   Active · clear
5. Hillwood Construction Services Of California L P

   Ontario, CA · CSLB #865674 · as of June 27, 2026
   Active · clear
6. Hiyawill Construction INC

   Ontario, CA · CSLB #1148677 · as of June 27, 2026
   Active · clear
7. Paul B Hofer Iii

   Ontario, CA · CSLB #368051 · as of June 27, 2026
   Active · clear
8. Craig E Holbrook

   Ontario, CA · CSLB #478551 · as of June 27, 2026
   Active · clear
9. Steve Hong

   Ontario, CA · CSLB #972839 · as of June 27, 2026
   Active · clear
10. Hostetler Construction

    Ontario, CA · CSLB #532843 · as of June 27, 2026
    Active · clear
11. HPS Construction

    Ontario, CA · CSLB #1111105 · as of June 27, 2026
    Active · clear
12. HR Garcia Construction INC

    Ontario, CA · CSLB #1050598 · as of June 27, 2026
    Active · clear
13. Eric Hurford Construction

    Ontario, CA · CSLB #806297 · as of June 27, 2026
    Active · clear
14. Hydrogen Construction

    Ontario, CA · CSLB #1106675 · as of June 27, 2026
    Active · clear
15. HY Global LLC

    Ontario, CA · CSLB #1072321 · as of June 27, 2026
    Active · clear
16. Incredibuilds INC

    Ontario, CA · CSLB #1010448 · as of June 27, 2026
    Active · clear
17. Inter-city Energy Systems INC

    Ontario, CA · CSLB #587709 · as of June 27, 2026
    Active · clear
18. Island Construction & Maintenance

    Ontario, CA · CSLB #667042 · as of June 27, 2026
    Active · clear
19. Island Petroleum Builders INC

    Ontario, CA · CSLB #776846 · as of June 27, 2026
    Active · clear
20. Ja Construction INC

    Ontario, CA · CSLB #1060402 · as of June 27, 2026
    Active · clear
21. Javier Tavares Ornelas

    Ontario, CA · CSLB #1067792 · as of June 27, 2026
    Active · clear
22. Jcsv Builders INC

    Ontario, CA · CSLB #1134819 · as of June 27, 2026
    Active · clear
23. Je Home Construction

    Ontario, CA · CSLB #1078677 · as of June 27, 2026
    Active · clear
24. Jewel Construction INC

    Ontario, CA · CSLB #915742 · as of June 27, 2026
    Active · clear
25. WH Jewett INC

    Ontario, CA · CSLB #975875 · as of June 27, 2026
    Active · clear
26. JFP Construction Company INC

    Ontario, CA · CSLB #965462 · as of June 27, 2026
    Active · clear
27. Jimmy A General Construction INC

    Ontario, CA · CSLB #971256 · as of June 27, 2026
    Active · clear
28. J Elias Enterprises INC DBA J & J Industrial Services

    Ontario, CA · CSLB #814328 · as of June 27, 2026
    Active · clear
29. J L G Construction

    Ontario, CA · CSLB #683195 · as of June 27, 2026
    Active · clear
30. J&N Maintenance Services

    Ontario, CA · CSLB #1147841 · as of June 27, 2026
    Active · clear
31. Jnsd Construction INC

    Ontario, CA · CSLB #1080741 · as of June 27, 2026
    Active · clear
32. Michael Craig Jones

    Ontario, CA · CSLB #790999 · as of June 27, 2026
    Active · clear
33. Jorcast Enterprises INC

    Ontario, CA · CSLB #559980 · as of June 27, 2026
    Active · clear
34. Joseph Construction

    Ontario, CA · CSLB #674654 · as of June 27, 2026
    Active · clear
35. J P Addison Construction INC

    Ontario, CA · CSLB #1029562 · as of June 27, 2026
    Active · clear
36. JW Builders INC

    Ontario, CA · CSLB #1015948 · as of June 27, 2026
    Active · clear
37. Brian Yawching Kao

    Ontario, CA · CSLB #897876 · as of June 27, 2026
    Active · clear
38. K A R Construction INC

    Ontario, CA · CSLB #595709 · as of June 27, 2026
    Active · clear
39. Kisba Contracting INC

    Ontario, CA · CSLB #1021128 · as of June 27, 2026
    Active · clear
40. Kismet Construction Company INC

    Ontario, CA · CSLB #893342 · as of June 27, 2026
    Active · clear
41. Koguma Sweet Home

    Ontario, CA · CSLB #1150188 · as of June 27, 2026
    Active · clear
42. KP Builders

    Ontario, CA · CSLB #983861 · as of June 27, 2026
    Active · clear
43. K P Construction CO INC

    Ontario, CA · CSLB #790555 · as of June 27, 2026
    Active · clear
44. Klaus Norbert Kraemer

    Ontario, CA · CSLB #529570 · as of June 27, 2026
    Active · clear
45. J P La Barge Construction Management

    Ontario, CA · CSLB #760763 · as of June 27, 2026
    Active · clear
46. Landeros Construction Group

    Ontario, CA · CSLB #770655 · as of June 27, 2026
    Active · clear
47. Lassiter Construction

    Ontario, CA · CSLB #758267 · as of June 27, 2026
    Active · clear
48. L D M Construction Services

    Ontario, CA · CSLB #957993 · as of June 27, 2026
    Active · clear
49. Ken Lee

    Ontario, CA · CSLB #1138718 · as of June 27, 2026
    Active · clear
50. Lee's General Construction Corp

    Ontario, CA · CSLB #1056618 · as of June 27, 2026
    Active · clear
51. Legend Construction Services INC

    Ontario, CA · CSLB #1038753 · as of June 27, 2026
    Active · clear
52. Life Builders

    Ontario, CA · CSLB #842842 · as of June 27, 2026
    Active · clear
53. Lighthouse Construction & Remodel

    Ontario, CA · CSLB #986212 · as of June 27, 2026
    Active · clear
54. Linx Construction INC

    Ontario, CA · CSLB #1079357 · as of June 27, 2026
    Active · clear
55. Lionel Rodirguez

    Ontario, CA · CSLB #1153852 · as of June 27, 2026
    Active · clear
56. Leo Hao Liu

    Ontario, CA · CSLB #1101645 · as of June 27, 2026
    Active · clear
57. Shengyu Liu Construction

    Ontario, CA · CSLB #1065175 · as of June 27, 2026
    Active · clear
58. LS Construction

    Ontario, CA · CSLB #1118857 · as of June 27, 2026
    Active · clear
59. LVL Construction INC

    Ontario, CA · CSLB #1077369 · as of June 27, 2026
    Active · clear
60. Matlock Design Build INC

    Ontario, CA · CSLB #1031038 · as of June 27, 2026
    Active · clear

See all General Building (B) contractors in California →

Data sourced from the California Contractors State License Board (CSLB), current as of June 27, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.