Licensed General Building (B) contractors in California

The California Contractors State License Board (CSLB) lists 100,807 California contractors classified B (General Building (B)). Each entry below links to a full dossier with license status, insurance, bond, and enforcement — as of August 31, 2026.

Showing 79,861–79,920 of 100,807 contractors

1. Bill Siem Construction

   Castro Valley, CA · CSLB #866184 · as of August 31, 2026
   Active · clear
2. Siemion Construction

   Modesto, CA · CSLB #1029742 · as of August 31, 2026
   Active · clear
3. Siemonsma Const

   Newport Beach, CA · CSLB #536498 · as of August 31, 2026
   Active · clear
4. Siempre Construction INC

   La Verne, CA · CSLB #805704 · as of August 31, 2026
   Active · clear
5. Siena Electric

   Simi Valley, CA · CSLB #856146 · as of August 31, 2026
   Active · clear
6. Siena Pacific INC

   San Rafael, CA · CSLB #725427 · as of August 31, 2026
   Active · clear
7. Si Energy

   North Hollywood, CA · CSLB #1061171 · as of August 31, 2026
   Active · clear
8. Sienna Homes & Construction

   Bakersfield, CA · CSLB #681083 · as of August 31, 2026
   Active · clear
9. Sierra

   Porterville, CA · CSLB #994375 · as of August 31, 2026
   Active · clear
10. Sierra Agj Construction INC

    Mammoth Lakes, CA · CSLB #1106564 · as of August 31, 2026
    Active · clear
11. Sierra Air And Electric

    Brawley, CA · CSLB #671594 · as of August 31, 2026
    Active · clear
12. Sierra Aluminum Products INC

    Fresno, CA · CSLB #894856 · as of August 31, 2026
    Active · clear
13. Sierra Azure Construction Corp

    Arcadia, CA · CSLB #1125046 · as of August 31, 2026
    Active · clear
14. Sierra Bay Construction

    Brentwood, CA · CSLB #925541 · as of August 31, 2026
    Active · clear
15. Sierra Bay Remodeling

    Big Oak Valley, CA · CSLB #925798 · as of August 31, 2026
    Active · clear
16. Sierra Bella Homes INC

    Sacramento, CA · CSLB #1146621 · as of August 31, 2026
    Active · clear
17. Sierra Bravo Construction

    Vacaville, CA · CSLB #869218 · as of August 31, 2026
    Active · clear
18. Sierra Builders

    Chico, CA · CSLB #1109602 · as of August 31, 2026
    Active · clear
19. Sierra Builders & Design INC

    South San Francisco, CA · CSLB #1136963 · as of August 31, 2026
    Active · clear
20. Sierra Builders Ed MC Millan

    Pleasant Hill, CA · CSLB #654794 · as of August 31, 2026
    Active · clear
21. Sierra Builder Service

    Antioch, CA · CSLB #1097752 · as of August 31, 2026
    Active · clear
22. Sierra Build Group

    Suisun City, CA · CSLB #1144514 · as of August 31, 2026
    Active · clear
23. Sierra Building Group Corporation

    Elk Grove, CA · CSLB #1138351 · as of August 31, 2026
    Active · clear
24. Sierra Building Service

    Fair Oaks, CA · CSLB #432004 · as of August 31, 2026
    Active · clear
25. Sierra Building Services

    El Dorado, CA · CSLB #630718 · as of August 31, 2026
    Active · clear
26. Sierra Building Supply & Contractors INC

    Yuba City, CA · CSLB #314393 · as of August 31, 2026
    Active · clear
27. William J Gray Iii DBA Sierra Cabinets

    Northridge, CA · CSLB #376767 · as of August 31, 2026
    Active · clear
28. Sierra Cascade Builders

    San Jose, CA · CSLB #637015 · as of August 31, 2026
    Active · clear
29. Sierra Cedar Corp

    Fair Oaks, CA · CSLB #846923 · as of August 31, 2026
    Active · clear
30. Sierra Chalet

    Stateline, CA · CSLB #1071630 · as of August 31, 2026
    Active · clear
31. Sierra Coast Builders INC

    Petaluma, CA · CSLB #1010514 · as of August 31, 2026
    Active · clear
32. Sierra Coast Construction INC

    Denair, CA · CSLB #1142555 · as of August 31, 2026
    Active · clear
33. Sierra Commander Framer's Construction

    Sacramento, CA · CSLB #924001 · as of August 31, 2026
    Active · clear
34. Sierra Concrete & Landscaping INC

    Bellflower, CA · CSLB #755804 · as of August 31, 2026
    Active · clear
35. Sierracon INC

    South Lake Tahoe, CA · CSLB #1021107 · as of August 31, 2026
    Active · clear
36. Sierra Construction

    Ontario, CA · CSLB #681123 · as of August 31, 2026
    Active · clear
37. Sierra Construction

    Citrus Heights, CA · CSLB #852728 · as of August 31, 2026
    Active · clear
38. Sierra Construction

    Red Bluff, CA · CSLB #1093723 · as of August 31, 2026
    Active · clear
39. Sierra Construction & Design INC

    Pacific Palisades, CA · CSLB #1079153 · as of August 31, 2026
    Active · clear
40. Sierra Construction Management

    Penn Valley, CA · CSLB #965520 · as of August 31, 2026
    Active · clear
41. Sierra Construction & Remodel INC

    Lake Elsinore, CA · CSLB #1106432 · as of August 31, 2026
    Active · clear
42. Sierra Construction & Septic

    Tracy, CA · CSLB #839545 · as of August 31, 2026
    Active · open complaint
43. Sierra Contracting

    Escondido, CA · CSLB #689329 · as of August 31, 2026
    Active · clear
44. Sierra Craftsman INC

    Truckee, CA · CSLB #957511 · as of August 31, 2026
    Active · clear
45. Sierra Crest Builders INC

    Woodbridge, CA · CSLB #977448 · as of August 31, 2026
    Active · clear
46. Sierra Crest INC

    Danville, CA · CSLB #508522 · as of August 31, 2026
    Active · clear
47. Sierra Crest Renovations

    Norco, CA · CSLB #1135942 · as of August 31, 2026
    Active · clear
48. Sierra Custom Construction

    Pioneer, CA · CSLB #996231 · as of August 31, 2026
    Active · clear
49. Sierra Custom Construction

    Modesto, CA · CSLB #667739 · as of August 31, 2026
    Active · clear
50. Sierra Development

    Palmdale, CA · CSLB #628323 · as of August 31, 2026
    Active · open complaint
51. Sierra Disaster Restoration INC

    Cameron Park, CA · CSLB #1056252 · as of August 31, 2026
    Active · clear
52. Sierra Edge Construction

    Rocklin, CA · CSLB #1144670 · as of August 31, 2026
    Active · clear
53. SF Sierra CO INC DBA Sierra Electric CO

    San Francisco, CA · CSLB #184594 · as of August 31, 2026
    Active · clear
54. Sierra Elite Construction

    Somerset, CA · CSLB #815591 · as of August 31, 2026
    Active · clear
55. Sierra Enterprise

    Oakdale, CA · CSLB #615201 · as of August 31, 2026
    Active · clear
56. Sierra Fence & Construction

    Ahwahnee, CA · CSLB #587395 · as of August 31, 2026
    Active · clear
57. Sierra Foothill Construction

    Placerville, CA · CSLB #824145 · as of August 31, 2026
    Active · clear
58. Sierra Foothills Construction Company

    Grass Valley, CA · CSLB #504110 · as of August 31, 2026
    Active · clear
59. Sierra General Contractors INC

    Encinitas, CA · CSLB #702113 · as of August 31, 2026
    Active · clear
60. Sierra Gold

    Hornbrook, CA · CSLB #1013878 · as of August 31, 2026
    Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of August 31, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.