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 1–60 of 311 contractors

1. A2z Builders Group INC

   Ontario, CA · CSLB #1150914 · as of June 27, 2026
   Active · clear
2. Ansary Aboubakare

   Ontario, CA · CSLB #1042235 · as of June 27, 2026
   Active · clear
3. Aboveground Solutions INC

   Ontario, CA · CSLB #1106979 · as of June 27, 2026
   Active · clear
4. Aces Construction

   Ontario, CA · CSLB #1083500 · as of June 27, 2026
   Active · clear
5. Action Restoration

   Ontario, CA · CSLB #798665 · as of June 27, 2026
   Active · clear
6. Classic Kitchens Etc INC DBA John I Adams Construction

   Ontario, CA · CSLB #1011138 · as of June 27, 2026
   Active · clear
7. Advance Construction

   Ontario, CA · CSLB #842289 · as of June 27, 2026
   Active · clear
8. Ag Building And Remodeling INC

   Ontario, CA · CSLB #1153779 · as of June 27, 2026
   Active · clear
9. Alberto Garcia Construction Services INC DBA A G Construction

   Ontario, CA · CSLB #793245 · as of June 27, 2026
   Active · clear
10. Ahome Construction INC

    Ontario, CA · CSLB #1066852 · as of June 27, 2026
    Active · clear
11. A I C Interior INC

    Ontario, CA · CSLB #806562 · as of June 27, 2026
    Active · clear
12. A - Industrial Design / Build

    Ontario, CA · CSLB #969373 · as of June 27, 2026
    Active · clear
13. Alberto Garcia Contractor

    Ontario, CA · CSLB #624340 · as of June 27, 2026
    Active · clear
14. Aljohn Builders

    Ontario, CA · CSLB #616383 · as of June 27, 2026
    Active · clear
15. Alliance Communication Services INC

    Ontario, CA · CSLB #746796 · as of June 27, 2026
    Active · clear
16. Allstar Adu & General Builder

    Ontario, CA · CSLB #1009628 · as of June 27, 2026
    Active · clear
17. Ambak Construction

    Ontario, CA · CSLB #923086 · as of June 27, 2026
    Active · clear
18. American General Builders

    Ontario, CA · CSLB #1114159 · as of June 27, 2026
    Active · clear
19. Amins Construction INC

    Ontario, CA · CSLB #1149094 · as of June 27, 2026
    Active · clear
20. Anda

    Ontario, CA · CSLB #1032575 · as of June 27, 2026
    Active · clear
21. Artisan Construction

    Ontario, CA · CSLB #1087835 · as of June 27, 2026
    Active · clear
22. Christopher Arvizu

    Ontario, CA · CSLB #1043693 · as of June 27, 2026
    Active · clear
23. Ashka Design & Construction

    Ontario, CA · CSLB #1145356 · as of June 27, 2026
    Active · clear
24. A T S Construction

    Ontario, CA · CSLB #807837 · as of June 27, 2026
    Active · clear
25. Balto Development INC

    Ontario, CA · CSLB #1067561 · as of June 27, 2026
    Active · clear
26. Ernesto Barberi

    Ontario, CA · CSLB #959795 · as of June 27, 2026
    Active · clear
27. Otto Ernesto Barrera

    Ontario, CA · CSLB #540960 · as of June 27, 2026
    Active · clear
28. Baywood Construction CO

    Ontario, CA · CSLB #415687 · as of June 27, 2026
    Active · clear
29. BC7 Construction INC

    Ontario, CA · CSLB #1049615 · as of June 27, 2026
    Active · clear
30. Bcbc Construction

    Ontario, CA · CSLB #926682 · as of June 27, 2026
    Active · clear
31. Best Choice Building & Developing

    Ontario, CA · CSLB #1084808 · as of June 27, 2026
    Active · clear
32. BGW Building Products INC

    Ontario, CA · CSLB #1156225 · as of June 27, 2026
    Active · clear
33. Blue Haven Pools

    Ontario, CA · CSLB #816057 · as of June 27, 2026
    Active · clear
34. Bonilla Construction

    Ontario, CA · CSLB #919777 · as of June 27, 2026
    Active · clear
35. Brilliant Building Group

    Ontario, CA · CSLB #1136246 · as of June 27, 2026
    Active · clear
36. Buena Vista Contractors

    Ontario, CA · CSLB #1112707 · as of June 27, 2026
    Active · clear
37. B Z B Construction Company

    Ontario, CA · CSLB #599680 · as of June 27, 2026
    Active · clear
38. Cadre Construction LLC

    Ontario, CA · CSLB #1148827 · as of June 27, 2026
    Active · clear
39. Calpoint Construction INC

    Ontario, CA · CSLB #1132890 · as of June 27, 2026
    Active · clear
40. Cano Architecture Concrete Repair

    Ontario, CA · CSLB #414320 · as of June 27, 2026
    Active · clear
41. Cap Angeles Construction INC

    Ontario, CA · CSLB #1115382 · as of June 27, 2026
    Active · clear
42. Amilcar M Castillo

    Ontario, CA · CSLB #711675 · as of June 27, 2026
    Active · clear
43. Castle Construction And Development INC

    Ontario, CA · CSLB #1149616 · as of June 27, 2026
    Active · clear
44. C B Home Construction

    Ontario, CA · CSLB #961219 · as of June 27, 2026
    Active · clear
45. C B Home Construction INC

    Ontario, CA · CSLB #1069527 · as of June 27, 2026
    Active · clear
46. CBX Construction INC

    Ontario, CA · CSLB #1132477 · as of June 27, 2026
    Active · clear
47. CDN Construction

    Ontario, CA · CSLB #1109836 · as of June 27, 2026
    Active · clear
48. Chava's Marble & Tile

    Ontario, CA · CSLB #692159 · as of June 27, 2026
    Active · clear
49. CJ Construction Services

    Ontario, CA · CSLB #1132772 · as of June 27, 2026
    Active · clear
50. Jake Sandoval DBA Clearwater Plumbing & Construction

    Ontario, CA · CSLB #980596 · as of June 27, 2026
    Active · clear
51. C M Construction General Contractors INC

    Ontario, CA · CSLB #677379 · as of June 27, 2026
    Active · clear
52. Comtract Communications INC

    Ontario, CA · CSLB #598482 · as of June 27, 2026
    Active · clear
53. Construx West INC

    Ontario, CA · CSLB #1146772 · as of June 27, 2026
    Active · clear
54. Control Systems

    Ontario, CA · CSLB #1099963 · as of June 27, 2026
    Active · clear
55. Correa Construction

    Ontario, CA · CSLB #482342 · as of June 27, 2026
    Active · clear
56. Cox Commerical & Industrial INC

    Ontario, CA · CSLB #868078 · as of June 27, 2026
    Active · clear
57. CPL Construction INC

    Ontario, CA · CSLB #1130846 · as of June 27, 2026
    Active · clear
58. Steve Crossman

    Ontario, CA · CSLB #362535 · as of June 27, 2026
    Active · clear
59. Crown Construction Group INC

    Ontario, CA · CSLB #1143986 · as of June 27, 2026
    Active · clear
60. Custom Carpentry

    Ontario, CA · CSLB #826799 · 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.