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 October 6, 2026.

Showing 121–180 of 311 contractors

1. HDC Construction INC

   Ontario, CA · CSLB #802646 · as of October 6, 2026
   Active · clear
2. HDZ Construct INC

   Ontario, CA · CSLB #1144932 · as of October 6, 2026
   Active · clear
3. HDZ Construction INC

   Ontario, CA · CSLB #1132126 · as of October 6, 2026
   Active · clear
4. Heritage Design Build And Consulting

   Ontario, CA · CSLB #991737 · as of October 6, 2026
   Active · clear
5. Heritage Design & Build LLC

   Ontario, CA · CSLB #1131358 · as of October 6, 2026
   Active · clear
6. Herron Construction INC

   Ontario, CA · CSLB #592387 · as of October 6, 2026
   Active · clear
7. High Quality Group

   Ontario, CA · CSLB #938452 · as of October 6, 2026
   Active · clear
8. High Ridge Construction INC

   Ontario, CA · CSLB #1028395 · as of October 6, 2026
   Active · clear
9. Hillwood Construction Services Of California L P

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

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

    Ontario, CA · CSLB #368051 · as of October 6, 2026
    Active · clear
12. Craig E Holbrook

    Ontario, CA · CSLB #478551 · as of October 6, 2026
    Active · clear
13. Steve Hong

    Ontario, CA · CSLB #972839 · as of October 6, 2026
    Active · clear
14. Hostetler Construction

    Ontario, CA · CSLB #532843 · as of October 6, 2026
    Active · clear
15. HR Garcia Construction INC

    Ontario, CA · CSLB #1050598 · as of October 6, 2026
    Active · clear
16. Eric Hurford Construction

    Ontario, CA · CSLB #806297 · as of October 6, 2026
    Active · clear
17. Hydrogen Construction

    Ontario, CA · CSLB #1106675 · as of October 6, 2026
    Active · clear
18. Inter-city Energy Systems INC

    Ontario, CA · CSLB #587709 · as of October 6, 2026
    Active · clear
19. Interior Experts General Builders INC

    Ontario, CA · CSLB #638437 · as of October 6, 2026
    Active · clear
20. Island Construction & Maintenance

    Ontario, CA · CSLB #667042 · as of October 6, 2026
    Active · clear
21. Island Petroleum Builders INC

    Ontario, CA · CSLB #776846 · as of October 6, 2026
    Active · clear
22. Javier Tavares Ornelas

    Ontario, CA · CSLB #1067792 · as of October 6, 2026
    Active · clear
23. JCC Construction

    Ontario, CA · CSLB #1067037 · as of October 6, 2026
    Active · clear
24. Jcsv Builders INC

    Ontario, CA · CSLB #1134819 · as of October 6, 2026
    Active · clear
25. Je Home Construction

    Ontario, CA · CSLB #1078677 · as of October 6, 2026
    Active · clear
26. Jesse's Iron Works

    Ontario, CA · CSLB #792073 · as of October 6, 2026
    Active · clear
27. Jewel Construction INC

    Ontario, CA · CSLB #915742 · as of October 6, 2026
    Active · clear
28. WH Jewett INC

    Ontario, CA · CSLB #975875 · as of October 6, 2026
    Active · clear
29. JFP Construction Company INC

    Ontario, CA · CSLB #965462 · as of October 6, 2026
    Active · clear
30. Jimmy A General Construction INC

    Ontario, CA · CSLB #971256 · as of October 6, 2026
    Active · clear
31. J Elias Enterprises INC DBA J & J Industrial Services

    Ontario, CA · CSLB #814328 · as of October 6, 2026
    Active · clear
32. J L G Construction

    Ontario, CA · CSLB #683195 · as of October 6, 2026
    Active · clear
33. J&N Maintenance Services

    Ontario, CA · CSLB #1147841 · as of October 6, 2026
    Active · clear
34. Jnsd Construction INC

    Ontario, CA · CSLB #1080741 · as of October 6, 2026
    Active · clear
35. Michael Craig Jones

    Ontario, CA · CSLB #790999 · as of October 6, 2026
    Active · clear
36. Jorcast Enterprises INC

    Ontario, CA · CSLB #559980 · as of October 6, 2026
    Active · clear
37. Joseph Construction

    Ontario, CA · CSLB #674654 · as of October 6, 2026
    Active · clear
38. J P Addison Construction INC

    Ontario, CA · CSLB #1029562 · as of October 6, 2026
    Active · clear
39. JW Builders INC

    Ontario, CA · CSLB #1015948 · as of October 6, 2026
    Active · clear
40. Brian Yawching Kao

    Ontario, CA · CSLB #897876 · as of October 6, 2026
    Active · clear
41. K A R Construction INC

    Ontario, CA · CSLB #595709 · as of October 6, 2026
    Active · clear
42. Kisba Contracting INC

    Ontario, CA · CSLB #1021128 · as of October 6, 2026
    Active · clear
43. Koguma Sweet Home

    Ontario, CA · CSLB #1150188 · as of October 6, 2026
    Active · clear
44. KP Builders

    Ontario, CA · CSLB #983861 · as of October 6, 2026
    Active · clear
45. K P Construction CO INC

    Ontario, CA · CSLB #790555 · as of October 6, 2026
    Active · clear
46. Klaus Norbert Kraemer

    Ontario, CA · CSLB #529570 · as of October 6, 2026
    Active · clear
47. J P La Barge Construction Management

    Ontario, CA · CSLB #760763 · as of October 6, 2026
    Active · clear
48. Lassiter Construction

    Ontario, CA · CSLB #758267 · as of October 6, 2026
    Active · clear
49. L D M Construction Services

    Ontario, CA · CSLB #957993 · as of October 6, 2026
    Active · clear
50. Ken Lee

    Ontario, CA · CSLB #1138718 · as of October 6, 2026
    Active · clear
51. Lee's General Construction Corp

    Ontario, CA · CSLB #1056618 · as of October 6, 2026
    Active · clear
52. Legend Construction Services INC

    Ontario, CA · CSLB #1038753 · as of October 6, 2026
    Active · clear
53. Life Builders

    Ontario, CA · CSLB #842842 · as of October 6, 2026
    Active · clear
54. Lighthouse Construction & Remodel

    Ontario, CA · CSLB #986212 · as of October 6, 2026
    Active · clear
55. Linx Construction INC

    Ontario, CA · CSLB #1079357 · as of October 6, 2026
    Active · clear
56. Lionel Rodirguez

    Ontario, CA · CSLB #1153852 · as of October 6, 2026
    Active · clear
57. Leo Hao Liu

    Ontario, CA · CSLB #1101645 · as of October 6, 2026
    Active · clear
58. Shengyu Liu Construction

    Ontario, CA · CSLB #1065175 · as of October 6, 2026
    Active · clear
59. LS Construction

    Ontario, CA · CSLB #1118857 · as of October 6, 2026
    Active · clear
60. LVL Construction INC

    Ontario, CA · CSLB #1077369 · as of October 6, 2026
    Active · clear

See all General Building (B) contractors in California →

Data sourced from the California Contractors State License Board (CSLB), current as of October 6, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.