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 181–240 of 311 contractors

1. Thor MC Andrew Construction

   Ontario, CA · CSLB #742776 · as of June 27, 2026
   Active · clear
2. Thomas Mcgee Development INC

   Ontario, CA · CSLB #1117295 · as of June 27, 2026
   Active · clear
3. MCQ Construction INC

   Ontario, CA · CSLB #1132913 · as of June 27, 2026
   Active · clear
4. Mega Construction LLC

   Ontario, CA · CSLB #1132714 · as of June 27, 2026
   Active · clear
5. Zhiyong Meng

   Ontario, CA · CSLB #1046125 · as of June 27, 2026
   Active · clear
6. Method Design Build

   Ontario, CA · CSLB #1108931 · as of June 27, 2026
   Active · clear
7. Metro RF Services INC

   Ontario, CA · CSLB #895236 · as of June 27, 2026
   Active · clear
8. Edward C Mierau

   Ontario, CA · CSLB #787998 · as of June 27, 2026
   Active · clear
9. Samuel Elias Milam

   Ontario, CA · CSLB #937003 · as of June 27, 2026
   Active · clear
10. Eliseo Miramontez

    Ontario, CA · CSLB #857173 · as of June 27, 2026
    Active · clear
11. Moonlite Construction

    Ontario, CA · CSLB #995505 · as of June 27, 2026
    Active · clear
12. Moore United Construction INC

    Ontario, CA · CSLB #764972 · as of June 27, 2026
    Active · clear
13. Moreno's Construction INC

    Ontario, CA · CSLB #1095952 · as of June 27, 2026
    Active · clear
14. M & R Construction Services INC

    Ontario, CA · CSLB #508404 · as of June 27, 2026
    Active · clear
15. Murguia Construction

    Ontario, CA · CSLB #780053 · as of June 27, 2026
    Active · clear
16. Murguia Construction INC

    Ontario, CA · CSLB #766953 · as of June 27, 2026
    Active · clear
17. Mustang Construction

    Ontario, CA · CSLB #1020934 · as of June 27, 2026
    Active · clear
18. Myco Construction

    Ontario, CA · CSLB #853581 · as of June 27, 2026
    Active · clear
19. Navona Placemaking

    Ontario, CA · CSLB #1156579 · as of June 27, 2026
    Active · clear
20. Neff Construction INC

    Ontario, CA · CSLB #790576 · as of June 27, 2026
    Active · clear
21. New Constructon

    Ontario, CA · CSLB #532419 · as of June 27, 2026
    Active · clear
22. New Home Design & Management INC DBA New Home Design & Build

    Ontario, CA · CSLB #1125434 · as of June 27, 2026
    Active · clear
23. Next Level Contractors INC

    Ontario, CA · CSLB #1088668 · as of June 27, 2026
    Active · clear
24. R W Nolte Construction INC

    Ontario, CA · CSLB #1042244 · as of June 27, 2026
    Active · clear
25. Victor Orozco Construction

    Ontario, CA · CSLB #982481 · as of June 27, 2026
    Active · clear
26. Pac Builders Corp

    Ontario, CA · CSLB #1107900 · as of June 27, 2026
    Active · clear
27. Packs Construction

    Ontario, CA · CSLB #453095 · as of June 27, 2026
    Active · clear
28. Louis Palafox Construction

    Ontario, CA · CSLB #1018409 · as of June 27, 2026
    Active · clear
29. Jocael Palomino

    Ontario, CA · CSLB #644395 · as of June 27, 2026
    Active · clear
30. Pam Pan Xu

    Ontario, CA · CSLB #1150481 · as of June 27, 2026
    Active · clear
31. Parkcrest Construction INC

    Ontario, CA · CSLB #600254 · as of June 27, 2026
    Active · clear
32. PBS Construction Service LLC

    Ontario, CA · CSLB #1077808 · as of June 27, 2026
    Active · clear
33. Penghao Yuan Construction

    Ontario, CA · CSLB #1054088 · as of June 27, 2026
    Active · clear
34. Pennco Construction Group INC

    Ontario, CA · CSLB #972111 · as of June 27, 2026
    Active · clear
35. Perera Construction & Design INC

    Ontario, CA · CSLB #585965 · as of June 27, 2026
    Active · clear
36. Perfect Construction CO

    Ontario, CA · CSLB #696650 · as of June 27, 2026
    Active · clear
37. Phil's Construction

    Ontario, CA · CSLB #916449 · as of June 27, 2026
    Active · clear
38. Pona's Construction

    Ontario, CA · CSLB #955730 · as of June 27, 2026
    Active · clear
39. Prefab Granite & Tile Depot INC

    Ontario, CA · CSLB #975056 · as of June 27, 2026
    Active · clear
40. Premium Construction Services

    Ontario, CA · CSLB #1033803 · as of June 27, 2026
    Active · clear
41. Prime Construction Services INC

    Ontario, CA · CSLB #985031 · as of June 27, 2026
    Active · clear
42. Prime Renovate INC

    Ontario, CA · CSLB #1076129 · as of June 27, 2026
    Active · clear
43. Project Countertops Company INC

    Ontario, CA · CSLB #1021347 · as of June 27, 2026
    Active · clear
44. Project X Developer INC

    Ontario, CA · CSLB #1106298 · as of June 27, 2026
    Active · clear
45. Property Builders Concepts & Maintenance INC

    Ontario, CA · CSLB #967277 · as of June 27, 2026
    Active · clear
46. Q A T General Construction

    Ontario, CA · CSLB #1085728 · as of June 27, 2026
    Active · clear
47. R3 Painting

    Ontario, CA · CSLB #757555 · as of June 27, 2026
    Active · clear
48. Ramirez Construction Services INC

    Ontario, CA · CSLB #1017026 · as of June 27, 2026
    Active · clear
49. Rancho Construction Specialties

    Ontario, CA · CSLB #1113850 · as of June 27, 2026
    Active · clear
50. R C A Construction Clean Up INC

    Ontario, CA · CSLB #996848 · as of June 27, 2026
    Active · clear
51. Red & Purple INC

    Ontario, CA · CSLB #1092661 · as of June 27, 2026
    Active · clear
52. Rema Builders

    Ontario, CA · CSLB #1142912 · as of June 27, 2026
    Active · clear
53. Rico INC

    Ontario, CA · CSLB #831227 · as of June 27, 2026
    Active · clear
54. Riggio Construction INC

    Ontario, CA · CSLB #806241 · as of June 27, 2026
    Active · clear
55. Right Call Services INC

    Ontario, CA · CSLB #1151470 · as of June 27, 2026
    Active · clear
56. Johnnie Rightmer

    Ontario, CA · CSLB #929338 · as of June 27, 2026
    Active · clear
57. R J P General Contracting

    Ontario, CA · CSLB #659596 · as of June 27, 2026
    Active · clear
58. Rockwall Construction Company

    Ontario, CA · CSLB #777138 · as of June 27, 2026
    Active · clear
59. Victor Romero

    Ontario, CA · CSLB #911371 · as of June 27, 2026
    Active · clear
60. Rossetti Construction Company INC

    Ontario, CA · CSLB #481575 · 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.