Licensed General Building (B) contractors in Ontario, CA

The California Contractors State License Board (CSLB) lists 312 General Building (B) contractors in Ontario, California. Each links to a full dossier with license status, insurance, bond, and enforcement — as of August 11, 2026.

Showing 121–180 of 312 contractors

1. Herron Construction INC

   Ontario, CA · CSLB #592387 · as of August 11, 2026
   Active · clear
2. High Quality Group

   Ontario, CA · CSLB #938452 · as of August 11, 2026
   Active · clear
3. High Ridge Construction INC

   Ontario, CA · CSLB #1028395 · as of August 11, 2026
   Active · clear
4. Hillwood Construction Services Of California L P

   Ontario, CA · CSLB #865674 · as of August 11, 2026
   Active · clear
5. Hiyawill Construction INC

   Ontario, CA · CSLB #1148677 · as of August 11, 2026
   Active · clear
6. Paul B Hofer Iii

   Ontario, CA · CSLB #368051 · as of August 11, 2026
   Active · clear
7. Craig E Holbrook

   Ontario, CA · CSLB #478551 · as of August 11, 2026
   Active · clear
8. Steve Hong

   Ontario, CA · CSLB #972839 · as of August 11, 2026
   Active · clear
9. Hostetler Construction

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

    Ontario, CA · CSLB #1111105 · as of August 11, 2026
    Active · clear
11. HR Garcia Construction INC

    Ontario, CA · CSLB #1050598 · as of August 11, 2026
    Active · clear
12. Eric Hurford Construction

    Ontario, CA · CSLB #806297 · as of August 11, 2026
    Active · clear
13. Hydrogen Construction

    Ontario, CA · CSLB #1106675 · as of August 11, 2026
    Active · clear
14. HY Global LLC

    Ontario, CA · CSLB #1072321 · as of August 11, 2026
    Active · clear
15. Incredibuilds INC

    Ontario, CA · CSLB #1010448 · as of August 11, 2026
    Active · clear
16. Inter-city Energy Systems INC

    Ontario, CA · CSLB #587709 · as of August 11, 2026
    Active · clear
17. Island Construction & Maintenance

    Ontario, CA · CSLB #667042 · as of August 11, 2026
    Active · clear
18. Island Petroleum Builders INC

    Ontario, CA · CSLB #776846 · as of August 11, 2026
    Active · clear
19. Ja Construction INC

    Ontario, CA · CSLB #1060402 · as of August 11, 2026
    Active · clear
20. Javier Tavares Ornelas

    Ontario, CA · CSLB #1067792 · as of August 11, 2026
    Active · clear
21. JCC Construction

    Ontario, CA · CSLB #1067037 · as of August 11, 2026
    Active · clear
22. Jcsv Builders INC

    Ontario, CA · CSLB #1134819 · as of August 11, 2026
    Active · clear
23. Je Home Construction

    Ontario, CA · CSLB #1078677 · as of August 11, 2026
    Active · clear
24. Jesse's Iron Works

    Ontario, CA · CSLB #792073 · as of August 11, 2026
    Active · clear
25. Jewel Construction INC

    Ontario, CA · CSLB #915742 · as of August 11, 2026
    Active · clear
26. WH Jewett INC

    Ontario, CA · CSLB #975875 · as of August 11, 2026
    Active · clear
27. JFP Construction Company INC

    Ontario, CA · CSLB #965462 · as of August 11, 2026
    Active · clear
28. Jimmy A General Construction INC

    Ontario, CA · CSLB #971256 · as of August 11, 2026
    Active · clear
29. J Elias Enterprises INC DBA J & J Industrial Services

    Ontario, CA · CSLB #814328 · as of August 11, 2026
    Active · clear
30. J L G Construction

    Ontario, CA · CSLB #683195 · as of August 11, 2026
    Active · clear
31. J&N Maintenance Services

    Ontario, CA · CSLB #1147841 · as of August 11, 2026
    Active · clear
32. Jnsd Construction INC

    Ontario, CA · CSLB #1080741 · as of August 11, 2026
    Active · clear
33. Michael Craig Jones

    Ontario, CA · CSLB #790999 · as of August 11, 2026
    Active · clear
34. Jorcast Enterprises INC

    Ontario, CA · CSLB #559980 · as of August 11, 2026
    Active · clear
35. Joseph Construction

    Ontario, CA · CSLB #674654 · as of August 11, 2026
    Active · clear
36. J P Addison Construction INC

    Ontario, CA · CSLB #1029562 · as of August 11, 2026
    Active · clear
37. JW Builders INC

    Ontario, CA · CSLB #1015948 · as of August 11, 2026
    Active · clear
38. Brian Yawching Kao

    Ontario, CA · CSLB #897876 · as of August 11, 2026
    Active · clear
39. K A R Construction INC

    Ontario, CA · CSLB #595709 · as of August 11, 2026
    Active · clear
40. Kisba Contracting INC

    Ontario, CA · CSLB #1021128 · as of August 11, 2026
    Active · clear
41. Kismet Construction Company INC

    Ontario, CA · CSLB #893342 · as of August 11, 2026
    Active · clear
42. Koguma Sweet Home

    Ontario, CA · CSLB #1150188 · as of August 11, 2026
    Active · clear
43. KP Builders

    Ontario, CA · CSLB #983861 · as of August 11, 2026
    Active · clear
44. K P Construction CO INC

    Ontario, CA · CSLB #790555 · as of August 11, 2026
    Active · clear
45. Klaus Norbert Kraemer

    Ontario, CA · CSLB #529570 · as of August 11, 2026
    Active · clear
46. J P La Barge Construction Management

    Ontario, CA · CSLB #760763 · as of August 11, 2026
    Active · clear
47. Landeros Construction Group

    Ontario, CA · CSLB #770655 · as of August 11, 2026
    Active · open complaint
48. Lassiter Construction

    Ontario, CA · CSLB #758267 · as of August 11, 2026
    Active · clear
49. L D M Construction Services

    Ontario, CA · CSLB #957993 · as of August 11, 2026
    Active · clear
50. Ken Lee

    Ontario, CA · CSLB #1138718 · as of August 11, 2026
    Active · clear
51. Lee's General Construction Corp

    Ontario, CA · CSLB #1056618 · as of August 11, 2026
    Active · clear
52. Legend Construction Services INC

    Ontario, CA · CSLB #1038753 · as of August 11, 2026
    Active · clear
53. Life Builders

    Ontario, CA · CSLB #842842 · as of August 11, 2026
    Active · clear
54. Linx Construction INC

    Ontario, CA · CSLB #1079357 · as of August 11, 2026
    Active · clear
55. Lionel Rodirguez

    Ontario, CA · CSLB #1153852 · as of August 11, 2026
    Active · clear
56. Leo Hao Liu

    Ontario, CA · CSLB #1101645 · as of August 11, 2026
    Active · clear
57. Shengyu Liu Construction

    Ontario, CA · CSLB #1065175 · as of August 11, 2026
    Active · clear
58. LS Construction

    Ontario, CA · CSLB #1118857 · as of August 11, 2026
    Active · clear
59. LVL Construction INC

    Ontario, CA · CSLB #1077369 · as of August 11, 2026
    Active · clear
60. Matlock Design Build INC

    Ontario, CA · CSLB #1031038 · as of August 11, 2026
    Active · clear

See all General Building (B) contractors in California →

Data sourced from the California Contractors State License Board (CSLB), current as of August 11, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.