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 181–240 of 312 contractors

1. Thor MC Andrew Construction

   Ontario, CA · CSLB #742776 · as of August 11, 2026
   Active · clear
2. Thomas Mcgee Development INC

   Ontario, CA · CSLB #1117295 · as of August 11, 2026
   Active · clear
3. MCQ Construction INC

   Ontario, CA · CSLB #1132913 · as of August 11, 2026
   Active · clear
4. Mega Construction LLC

   Ontario, CA · CSLB #1132714 · as of August 11, 2026
   Active · clear
5. Zhiyong Meng

   Ontario, CA · CSLB #1046125 · as of August 11, 2026
   Active · clear
6. Method Design Build

   Ontario, CA · CSLB #1108931 · as of August 11, 2026
   Active · clear
7. Metro RF Services INC

   Ontario, CA · CSLB #895236 · as of August 11, 2026
   Active · clear
8. Edward C Mierau

   Ontario, CA · CSLB #787998 · as of August 11, 2026
   Active · clear
9. Samuel Elias Milam

   Ontario, CA · CSLB #937003 · as of August 11, 2026
   Active · clear
10. Minghui Li

    Ontario, CA · CSLB #1028942 · as of August 11, 2026
    Active · clear
11. Eliseo Miramontez

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

    Ontario, CA · CSLB #995505 · as of August 11, 2026
    Active · clear
13. Moore United Construction INC

    Ontario, CA · CSLB #764972 · as of August 11, 2026
    Active · clear
14. Moreno's Construction INC

    Ontario, CA · CSLB #1095952 · as of August 11, 2026
    Active · clear
15. M & R Construction Services INC

    Ontario, CA · CSLB #508404 · as of August 11, 2026
    Active · clear
16. Murguia Construction

    Ontario, CA · CSLB #780053 · as of August 11, 2026
    Active · clear
17. Murguia Construction INC

    Ontario, CA · CSLB #766953 · as of August 11, 2026
    Active · clear
18. Mustang Construction

    Ontario, CA · CSLB #1020934 · as of August 11, 2026
    Active · clear
19. Myco Construction

    Ontario, CA · CSLB #853581 · as of August 11, 2026
    Active · clear
20. Navona Placemaking

    Ontario, CA · CSLB #1156579 · as of August 11, 2026
    Active · clear
21. Neff Construction INC

    Ontario, CA · CSLB #790576 · as of August 11, 2026
    Active · clear
22. New Constructon

    Ontario, CA · CSLB #532419 · as of August 11, 2026
    Active · clear
23. Next Level Contractors INC

    Ontario, CA · CSLB #1088668 · as of August 11, 2026
    Active · clear
24. R W Nolte Construction INC

    Ontario, CA · CSLB #1042244 · as of August 11, 2026
    Active · clear
25. Norton General Contractors

    Ontario, CA · CSLB #909595 · as of August 11, 2026
    Active · clear
26. Victor Orozco Construction

    Ontario, CA · CSLB #982481 · as of August 11, 2026
    Active · clear
27. Pac Builders Corp

    Ontario, CA · CSLB #1107900 · as of August 11, 2026
    Active · clear
28. Packs Construction

    Ontario, CA · CSLB #453095 · as of August 11, 2026
    Active · clear
29. Louis Palafox Construction

    Ontario, CA · CSLB #1018409 · as of August 11, 2026
    Active · clear
30. Jocael Palomino

    Ontario, CA · CSLB #644395 · as of August 11, 2026
    Active · clear
31. Pam Pan Xu

    Ontario, CA · CSLB #1150481 · as of August 11, 2026
    Active · clear
32. Parkcrest Construction INC

    Ontario, CA · CSLB #600254 · as of August 11, 2026
    Active · clear
33. PBS Construction Service LLC

    Ontario, CA · CSLB #1077808 · as of August 11, 2026
    Active · clear
34. Penghao Yuan Construction

    Ontario, CA · CSLB #1054088 · as of August 11, 2026
    Active · clear
35. Pennco Construction Group INC

    Ontario, CA · CSLB #972111 · as of August 11, 2026
    Active · clear
36. Perera Construction & Design INC

    Ontario, CA · CSLB #585965 · as of August 11, 2026
    Active · clear
37. Perfect Construction CO

    Ontario, CA · CSLB #696650 · as of August 11, 2026
    Active · clear
38. Phil's Construction

    Ontario, CA · CSLB #916449 · as of August 11, 2026
    Active · clear
39. Pona's Construction

    Ontario, CA · CSLB #955730 · as of August 11, 2026
    Active · clear
40. Prefab Granite & Tile Depot INC

    Ontario, CA · CSLB #975056 · as of August 11, 2026
    Active · clear
41. Premium Construction Services

    Ontario, CA · CSLB #1033803 · as of August 11, 2026
    Active · clear
42. Prime Construction Services INC

    Ontario, CA · CSLB #985031 · as of August 11, 2026
    Active · clear
43. Prime Renovate INC

    Ontario, CA · CSLB #1076129 · as of August 11, 2026
    Active · clear
44. Project Countertops Company INC

    Ontario, CA · CSLB #1021347 · as of August 11, 2026
    Active · clear
45. Project X Developer INC

    Ontario, CA · CSLB #1106298 · as of August 11, 2026
    Active · clear
46. Property Builders Concepts & Maintenance INC

    Ontario, CA · CSLB #967277 · as of August 11, 2026
    Active · clear
47. Q A T General Construction

    Ontario, CA · CSLB #1085728 · as of August 11, 2026
    Active · clear
48. R3 Painting

    Ontario, CA · CSLB #757555 · as of August 11, 2026
    Active · clear
49. Ramirez Construction Services INC

    Ontario, CA · CSLB #1017026 · as of August 11, 2026
    Active · clear
50. Rancho Construction Specialties

    Ontario, CA · CSLB #1113850 · as of August 11, 2026
    Active · clear
51. R C A Construction Clean Up INC

    Ontario, CA · CSLB #996848 · as of August 11, 2026
    Active · clear
52. Red & Purple INC

    Ontario, CA · CSLB #1092661 · as of August 11, 2026
    Active · clear
53. Rema Builders

    Ontario, CA · CSLB #1142912 · as of August 11, 2026
    Active · clear
54. Rico INC

    Ontario, CA · CSLB #831227 · as of August 11, 2026
    Active · clear
55. Riggio Construction INC

    Ontario, CA · CSLB #806241 · as of August 11, 2026
    Active · clear
56. Right Call Services INC

    Ontario, CA · CSLB #1151470 · as of August 11, 2026
    Active · clear
57. Johnnie Rightmer

    Ontario, CA · CSLB #929338 · as of August 11, 2026
    Active · clear
58. R J P General Contracting

    Ontario, CA · CSLB #659596 · as of August 11, 2026
    Active · clear
59. Rockwall Construction Company

    Ontario, CA · CSLB #777138 · as of August 11, 2026
    Active · clear
60. Victor Romero

    Ontario, CA · CSLB #911371 · 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.