Licensed General Engineering (A) contractors in California

The California Contractors State License Board (CSLB) lists 15,127 California contractors classified A (General Engineering (A)). Each entry below links to a full dossier with license status, insurance, bond, and enforcement — as of October 14, 2026.

Showing 9,661–9,720 of 15,127 contractors

1. On Point Grading & Paving INC

   Fresno, CA · CSLB #1026372 · as of October 14, 2026
   Active · clear
2. On-site Commercial Services INC

   Livermore, CA · CSLB #936073 · as of October 14, 2026
   Active · clear
3. On - Site Engineering And Asphalt

   Loomis, CA · CSLB #846782 · as of October 14, 2026
   Active · clear
4. On-site Engineering & Asphalt

   Loomis, CA · CSLB #851332 · as of October 14, 2026
   Active · clear
5. On-site Equipment INC

   Diamond Springs, CA · CSLB #1141858 · as of October 14, 2026
   Active · clear
6. On Site General Engineering INC

   Livermore, CA · CSLB #1003225 · as of October 14, 2026
   Active · clear
7. Ontiveros Design Build & Remodel

   Bonita, CA · CSLB #1004894 · as of October 14, 2026
   Active · open complaint
8. Ontivity LLC

   New Braunfels, CA · CSLB #1132938 · as of October 14, 2026
   Active · clear
9. Ontrack Construction

   Sanger, CA · CSLB #1155462 · as of October 14, 2026
   Active · clear
10. Ontrax Construction INC

    Lancaster, CA · CSLB #1000760 · as of October 14, 2026
    Active · clear
11. Onyx Paving Company INC

    Yorba Linda, CA · CSLB #630360 · as of October 14, 2026
    Active · clear
12. Opal Fuels Station Services LLC

    Rancho Cucamonga, CA · CSLB #1063659 · as of October 14, 2026
    Active · clear
13. Opdi Construction INC

    Carmichael, CA · CSLB #1117057 · as of October 14, 2026
    Active · clear
14. Operations Management International INC

    Denver, CA · CSLB #911923 · as of October 14, 2026
    Active · clear
15. Oppenheimer National

    San Juan Capistrano, CA · CSLB #1095956 · as of October 14, 2026
    Active · clear
16. Opterra Energy Services LLC

    Pasadena, CA · CSLB #1142716 · as of October 14, 2026
    Active · clear
17. Optimal Earthwork And Grading INC

    San Jose, CA · CSLB #1089775 · as of October 14, 2026
    Active · clear
18. Optima R P M INC

    Irvine, CA · CSLB #961714 · as of October 14, 2026
    Active · clear
19. Optimum INC

    Bloomington, CA · CSLB #817291 · as of October 14, 2026
    Active · clear
20. Optimum Seismic INC

    Vernon, CA · CSLB #1012702 · as of October 14, 2026
    Active · clear
21. Optimum Solar Power INC

    Riverside, CA · CSLB #1024381 · as of October 14, 2026
    Active · clear
22. Optimus Engineering

    Fallbrook, CA · CSLB #1132191 · as of October 14, 2026
    Active · clear
23. Optimus Prime Engineering

    San Luis Rey, CA · CSLB #1134973 · as of October 14, 2026
    Active · clear
24. Opulent Design Build INC

    Irvine, CA · CSLB #950118 · as of October 14, 2026
    Active · clear
25. Opus Pacific Development INC

    San Mateo, CA · CSLB #801858 · as of October 14, 2026
    Active · clear
26. Oracle Abatement

    Carmichael, CA · CSLB #1134939 · as of October 14, 2026
    Active · clear
27. Oracle Properties Development INC

    Carmichael, CA · CSLB #572233 · as of October 14, 2026
    Active · clear
28. Asad Holdings LLC DBA Orangeblue General Contractors

    Laguna Hills, CA · CSLB #1074946 · as of October 14, 2026
    Active · clear
29. Orange Coast Petroleum Equipment INC

    Orange, CA · CSLB #841021 · as of October 14, 2026
    Active · clear
30. Orange Coast Solar

    North Hollywood, CA · CSLB #1110907 · as of October 14, 2026
    Active · clear
31. Orange County Asphalt INC

    Anaheim, CA · CSLB #746653 · as of October 14, 2026
    Active · clear
32. Orange County Pumping INC

    Santa Ana, CA · CSLB #680703 · as of October 14, 2026
    Active · clear
33. Orange Electrical Contractors INC

    Orange, CA · CSLB #834083 · as of October 14, 2026
    Active · clear
34. Oraway Engineering INC

    Indio, CA · CSLB #827662 · as of October 14, 2026
    Active · clear
35. Orbas & Associates

    Golden Valley, CA · CSLB #386855 · as of October 14, 2026
    Active · clear
36. West Coast Contractors INC DBA Oregon West Coast Contractors

    Coos Bay, CA · CSLB #511500 · as of October 14, 2026
    Active · clear
37. Oren Construction

    Los Angeles, CA · CSLB #652500 · as of October 14, 2026
    Active · clear
38. Mike Oreno Excavation

    Orangevale, CA · CSLB #763911 · as of October 14, 2026
    Active · clear
39. Oriole Homes INC

    Bakersfield, CA · CSLB #934908 · as of October 14, 2026
    Active · clear
40. Orion Construction Corporation

    Vista, CA · CSLB #549309 · as of October 14, 2026
    Active · clear
41. Orion Construction Corporation / Balboa Construction INC Joint

    Vista, CA · CSLB #788132 · as of October 14, 2026
    Active · clear
42. Orion Marine Contractors INC

    Houston, CA · CSLB #961792 · as of October 14, 2026
    Active · clear
43. Orion / TC A Joint Venture

    Santee, CA · CSLB #1050216 · as of October 14, 2026
    Active · clear
44. Orman & Associates INC

    Alamo, CA · CSLB #907485 · as of October 14, 2026
    Active · clear
45. Ormat Nevada INC

    Reno, CA · CSLB #816775 · as of October 14, 2026
    Active · clear
46. Ormiston's

    Elmira, CA · CSLB #751525 · as of October 14, 2026
    Active · clear
47. Ormonde Truck And Tractor

    Arroyo Grande, CA · CSLB #796964 · as of October 14, 2026
    Active · clear
48. Ornaz Construction

    Redondo Beach, CA · CSLB #924634 · as of October 14, 2026
    Active · clear
49. Ornelas Construction INC

    Sylmar, CA · CSLB #925494 · as of October 14, 2026
    Active · clear
50. Oro Lake Constructors

    Oroville, CA · CSLB #1025072 · as of October 14, 2026
    Active · clear
51. Orr Builders

    Palm Desert, CA · CSLB #693077 · as of October 14, 2026
    Active · clear
52. Orr Construction Company

    Signal Hill, CA · CSLB #1028720 · as of October 14, 2026
    Active · clear
53. A M Ortega

    Lakeside, CA · CSLB #406981 · as of October 14, 2026
    Active · clear
54. A M Ortega Construction INC

    Lakeside, CA · CSLB #486311 · as of October 14, 2026
    Active · clear
55. Ortega Brothers General Engineering

    Ukiah, CA · CSLB #1145086 · as of October 14, 2026
    Active · clear
56. Ortega R'S Construction

    Bakersfield, CA · CSLB #808465 · as of October 14, 2026
    Active · clear
57. Ortiz Corporation

    National City, CA · CSLB #602454 · as of October 14, 2026
    Active · clear
58. Ortiz Engineering INC

    Arroyo Grande, CA · CSLB #1158634 · as of October 14, 2026
    Active · clear
59. Ortiz Enterprises Incorporated

    Irvine, CA · CSLB #467088 · as of October 14, 2026
    Active · clear
60. Ortiz Equipment INC

    Irvine, CA · CSLB #528891 · as of October 14, 2026
    Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of October 14, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.