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 11,341–11,400 of 15,127 contractors

1. Royaltech Services

   La Puente, CA · CSLB #638729 · as of October 14, 2026
   Active · clear
2. Royalty Construction

   Atascadero, CA · CSLB #773821 · as of October 14, 2026
   Active · clear
3. Roy Brothers Drilling INC

   Camarillo, CA · CSLB #784714 · as of October 14, 2026
   Active · clear
4. Darrell Roy Enterprises INC

   Camarillo, CA · CSLB #651852 · as of October 14, 2026
   Active · clear
5. Royoco Construction & Development Corporation

   Ross, CA · CSLB #961638 · as of October 14, 2026
   Active · clear
6. R P Cable & Engineering

   El Cajon, CA · CSLB #1069999 · as of October 14, 2026
   Active · clear
7. R P Engineers

   National City, CA · CSLB #456678 · as of October 14, 2026
   Active · clear
8. R P General Construction Engineering

   Valley Center, CA · CSLB #921361 · as of October 14, 2026
   Active · clear
9. R P M Construction Management INC

   Torrance, CA · CSLB #930216 · as of October 14, 2026
   Active · clear
10. RPM Development And Engineering LLC

    Los Gatos, CA · CSLB #1083258 · as of October 14, 2026
    Active · clear
11. RP Vititow Construction Corp

    Signal Hill, CA · CSLB #955760 · as of October 14, 2026
    Active · clear
12. RR2 Engineering INC

    Acton, CA · CSLB #1072813 · as of October 14, 2026
    Active · clear
13. R & R Construction

    Shingletown, CA · CSLB #867686 · as of October 14, 2026
    Active · clear
14. R R Construction

    Corona, CA · CSLB #838439 · as of October 14, 2026
    Active · clear
15. R & R Demo And Grading Corp

    Ventura, CA · CSLB #976014 · as of October 14, 2026
    Active · clear
16. R & R Engineering CO

    Moreno Valley, CA · CSLB #1116245 · as of October 14, 2026
    Active · clear
17. R R Gonzalez Construction

    Coachella, CA · CSLB #497347 · as of October 14, 2026
    Active · clear
18. R&R Horn Contractors INC

    Chico, CA · CSLB #958638 · as of October 14, 2026
    Active · clear
19. R & R Maher Construction Company INC

    Napa, CA · CSLB #508930 · as of October 14, 2026
    Active · clear
20. R/R Management And Development

    Escondido, CA · CSLB #1051948 · as of October 14, 2026
    Active · clear
21. R & R Mountain Enterprises INC

    Groveland, CA · CSLB #991183 · as of October 14, 2026
    Active · clear
22. R & R Pacific Construction DBA R & R Pacific Excavation

    Woodland, CA · CSLB #991942 · as of October 14, 2026
    Active · clear
23. R & R Pipeline Incorporated

    Santa Paula, CA · CSLB #639211 · as of October 14, 2026
    Active · clear
24. RSB Construction Group INC

    San Francisco, CA · CSLB #1086260 · as of October 14, 2026
    Active · clear
25. R & S Construction

    Fillmore, CA · CSLB #889551 · as of October 14, 2026
    Active · clear
26. R S Construction

    Davis, CA · CSLB #714990 · as of October 14, 2026
    Active · clear
27. R & S Construction Management INC

    San Francisco, CA · CSLB #992019 · as of October 14, 2026
    Active · clear
28. R S Construction Services INC

    Cerritos, CA · CSLB #768911 · as of October 14, 2026
    Active · clear
29. R S H Construction INC

    Atascadero, CA · CSLB #764498 · as of October 14, 2026
    Active · clear
30. R & S Industrial Field Service INC

    Victorville, CA · CSLB #963639 · as of October 14, 2026
    Active · clear
31. Rsi Remediation LLC

    Tempe, CA · CSLB #1108897 · as of October 14, 2026
    Active · clear
32. RSM

    Fort Mohave, CA · CSLB #680861 · as of October 14, 2026
    Active · clear
33. R S M 2 Contractors INC

    La Mesa, CA · CSLB #819649 · as of October 14, 2026
    Active · clear
34. R S & M Construction INC

    Sugarloaf, CA · CSLB #847570 · as of October 14, 2026
    Active · clear
35. RS Milestone General Engineering INC

    Patterson, CA · CSLB #1115959 · as of October 14, 2026
    Active · clear
36. R S One Plumbing

    Burbank, CA · CSLB #668384 · as of October 14, 2026
    Active · clear
37. RSR Contracting

    San Diego, CA · CSLB #1133995 · as of October 14, 2026
    Active · clear
38. R S S E INC

    Redding, CA · CSLB #957228 · as of October 14, 2026
    Active · clear
39. R S Services

    West Sacramento, CA · CSLB #612231 · as of October 14, 2026
    Active · clear
40. R S T Cranes INC

    Tehachapi, CA · CSLB #927550 · as of October 14, 2026
    Active · clear
41. R Sutton Enterprises LLC

    Vallecito, CA · CSLB #1101339 · as of October 14, 2026
    Active · clear
42. Rta Construction INC

    Redding, CA · CSLB #862067 · as of October 14, 2026
    Active · clear
43. RTB General Engineering INC

    Oroville, CA · CSLB #1127786 · as of October 14, 2026
    Active · clear
44. Richard Townsend Construction INC DBA R T C

    Oakdale, CA · CSLB #680616 · as of October 14, 2026
    Active · clear
45. R T Contractor Corp

    Garden Grove, CA · CSLB #755720 · as of October 14, 2026
    Active · clear
46. RT Finish Grading LLC

    Santa Ana, CA · CSLB #1114214 · as of October 14, 2026
    Active · clear
47. RTL Concrete Construction

    Poway, CA · CSLB #1130922 · as of October 14, 2026
    Active · clear
48. Rubacon INC

    Herald, CA · CSLB #972202 · as of October 14, 2026
    Active · clear
49. Rubalcaba Enterprises

    San Clemente, CA · CSLB #988281 · as of October 14, 2026
    Active · clear
50. Rubecon Builders INC

    San Francisco, CA · CSLB #734031 · as of October 14, 2026
    Active · clear
51. Ruben & Ramon

    Newark, CA · CSLB #797855 · as of October 14, 2026
    Active · clear
52. Rubicon Engineering Corporation

    Orange, CA · CSLB #850419 · as of October 14, 2026
    Active · clear
53. Applied Diving Services INC DBA Rubicon Pacific Marine

    Conroe, CA · CSLB #942354 · as of October 14, 2026
    Active · clear
54. Rubik Built LLC

    Modesto, CA · CSLB #1047188 · as of October 14, 2026
    Active · clear
55. Rubix Engineering

    Irvine, CA · CSLB #1122155 · as of October 14, 2026
    Active · clear
56. Ruby's Builder INC

    Jurupa Valley, CA · CSLB #815758 · as of October 14, 2026
    Active · clear
57. Rudolph & Sletten INC

    Menlo Park, CA · CSLB #198069 · as of October 14, 2026
    Active · clear
58. Rudolph & Sletten INC / Tutor Perini Building Corp Joint Venture

    Menlo Park, CA · CSLB #952158 · as of October 14, 2026
    Active · clear
59. Jack A Rudometkin Const CO

    Whittier, CA · CSLB #331651 · as of October 14, 2026
    Active · clear
60. Rugged Rock Engineering

    Nevada City, CA · CSLB #1092309 · 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.