Licensed General Engineering (A) contractors in California

The California Contractors State License Board (CSLB) lists 15,259 California contractors classified A (General Engineering (A)). Each entry below links to a full dossier with license status, insurance, bond, and enforcement — as of July 4, 2026.

Showing 6,661–6,720 of 15,259 contractors

1. Ingram & Greene Sanitation

   Atascadero, CA · CSLB #940007 · as of July 4, 2026
   Active · clear
2. Sergio A Iniguez

   San Diego, CA · CSLB #980112 · as of July 4, 2026
   Active · clear
3. Inland Builders Supply INC

   Blythe, CA · CSLB #342768 · as of July 4, 2026
   Active · clear
4. Inland Contracting INC

   Nicasio, CA · CSLB #1139191 · as of July 4, 2026
   Active · clear
5. Inland Contractors INC

   Riverside, CA · CSLB #887337 · as of July 4, 2026
   Active · clear
6. Inland Design Build

   Ontario, CA · CSLB #1005429 · as of July 4, 2026
   Active · clear
7. Inland Empire Underground

   Temecula, CA · CSLB #1151696 · as of July 4, 2026
   Active · clear
8. Inland Engineering Services INC

   Corona, CA · CSLB #931684 · as of July 4, 2026
   Active · clear
9. Inland Erosion Control Services INC

   Temecula, CA · CSLB #801184 · as of July 4, 2026
   Active · clear
10. Inland Grading & Engineering DBA Inland Grading Engineering

    Fontana, CA · CSLB #1014465 · as of July 4, 2026
    Active · clear
11. Inland Highway Services Corp

    Upland, CA · CSLB #1026434 · as of July 4, 2026
    Active · clear
12. Inland Marine Services

    Centennail, CA · CSLB #825621 · as of July 4, 2026
    Active · clear
13. Inland Mechanical Construction INC

    Lake Elsinore, CA · CSLB #198273 · as of July 4, 2026
    Active · clear
14. Inland Potable Services INC

    Centennial, CA · CSLB #941676 · as of July 4, 2026
    Active · clear
15. Inland Pro Contracting

    Menifee, CA · CSLB #1050451 · as of July 4, 2026
    Active · clear
16. Inland Structures INC

    Riverside, CA · CSLB #1144522 · as of July 4, 2026
    Active · clear
17. Inland Valley Engineering INC

    Temecula, CA · CSLB #850477 · as of July 4, 2026
    Active · clear
18. Inland Valley General Engineering LLC

    Menifee, CA · CSLB #1089174 · as of July 4, 2026
    Active · clear
19. Inland Valley Pipeline INC

    Temecula, CA · CSLB #887253 · as of July 4, 2026
    Active · clear
20. Inliner Solutions LLC

    Stone Mountain, CA · CSLB #1058332 · as of July 4, 2026
    Active · clear
21. Innerline Engineering INC

    Murrieta, CA · CSLB #790418 · as of July 4, 2026
    Active · clear
22. Innocenti Construction INC

    Camarillo, CA · CSLB #676461 · as of July 4, 2026
    Active · clear
23. Innotech Builders INC

    Rancho Palos Verdes, CA · CSLB #1066403 · as of July 4, 2026
    Active · clear
24. Innovate Engineering

    San Jose, CA · CSLB #869607 · as of July 4, 2026
    Active · clear
25. Innovative Coatings Central Coast INC

    Paso Robles, CA · CSLB #1083978 · as of July 4, 2026
    Active · clear
26. Innovative Construction Consulting Services

    Norco, CA · CSLB #671810 · as of July 4, 2026
    Active · clear
27. Innovative Construction Solutions

    Costa Mesa, CA · CSLB #764815 · as of July 4, 2026
    Active · clear
28. Innovative Environmental Solutions

    Encinitas, CA · CSLB #962676 · as of July 4, 2026
    Active · clear
29. Innovative General Engineering INC

    Redwood City, CA · CSLB #1054646 · as of July 4, 2026
    Active · clear
30. Innovative Painting & Waterproofing LLC

    Santa Fe Springs, CA · CSLB #1004495 · as of July 4, 2026
    Active · clear
31. Innovative Playgrounds Company INC

    Whittier, CA · CSLB #1032775 · as of July 4, 2026
    Active · clear
32. In & Out Plumbing And Construction INC

    South San Francisco, CA · CSLB #878184 · as of July 4, 2026
    Active · clear
33. E B V Engineering INC DBA Insight Engineering

    Mclean, CA · CSLB #762139 · as of July 4, 2026
    Active · clear
34. Insight Environmental Engineering & Construction INC

    Brea, CA · CSLB #864944 · as of July 4, 2026
    Active · clear
35. David Oh DBA Insight Landscaping

    Oceanside, CA · CSLB #674721 · as of July 4, 2026
    Active · clear
36. Insituform Technologies LLC

    Chesterfield, CA · CSLB #758411 · as of July 4, 2026
    Active · clear
37. Inspection Detection Connection

    San Marcos, CA · CSLB #1076926 · as of July 4, 2026
    Active · clear
38. Insski INC

    Woodland Hills, CA · CSLB #1098230 · as of July 4, 2026
    Active · clear
39. Instrumental Engineering

    Lebec, CA · CSLB #872957 · as of July 4, 2026
    Active · clear
40. Instrument Control Services

    Ventura, CA · CSLB #950744 · as of July 4, 2026
    Active · clear
41. Instrument Personnel Incorporated

    Artesia, CA · CSLB #437013 · as of July 4, 2026
    Active · clear
42. Intake Screens INC

    Sacramento, CA · CSLB #796197 · as of July 4, 2026
    Active · clear
43. Intech Mechanical Company LLC

    Roseville, CA · CSLB #998149 · as of July 4, 2026
    Active · clear
44. Integra Construction Services INC

    Pleasanton, CA · CSLB #481246 · as of July 4, 2026
    Active · clear
45. Integrated Cryogenic Solutions LLC

    Escondido, CA · CSLB #1065782 · as of July 4, 2026
    Active · clear
46. Integrated Demolition And Remediation Incorporated

    Anaheim, CA · CSLB #1003504 · as of July 4, 2026
    Active · clear
47. Integrated Engineers & Contractors Corporation

    Rancho Cordova, CA · CSLB #786949 · as of July 4, 2026
    Active · clear
48. Integrated Facilities Services

    Loomis, CA · CSLB #322590 · as of July 4, 2026
    Active · clear
49. Integrated Home Solutions Group INC

    Bakersfield, CA · CSLB #1047775 · as of July 4, 2026
    Active · clear
50. Integrated Performance Consultants INC

    Irvine, CA · CSLB #856139 · as of July 4, 2026
    Active · clear
51. Integrated Service Company LLC

    Tulsa, CA · CSLB #1000825 · as of July 4, 2026
    Active · clear
52. Integrated Tech Group LLC

    Fort Lauderdale, CA · CSLB #1047658 · as of July 4, 2026
    Active · clear
53. Integrated Water Services INC

    Longmont, CA · CSLB #836211 · as of July 4, 2026
    Active · clear
54. Integrate Solar INC

    Indianapolis, CA · CSLB #1109438 · as of July 4, 2026
    Active · clear
55. Integrity General Engineering Contractors INC

    Corona, CA · CSLB #1003400 · as of July 4, 2026
    Active · clear
56. Integrity Golf INC

    Fallbrook, CA · CSLB #986405 · as of July 4, 2026
    Active · clear
57. Guills INC DBA Integrity Landscape And Concrete

    Pasadena, CA · CSLB #893464 · as of July 4, 2026
    Active · clear
58. In - Tek Construction Services

    Silverado, CA · CSLB #429497 · as of July 4, 2026
    Active · clear
59. Intelligent Engineered Systems And Services

    Rancho Cucamonga, CA · CSLB #830327 · as of July 4, 2026
    Active · clear
60. Intelligrated Systems LLC

    Mason, CA · CSLB #1074551 · as of July 4, 2026
    Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of July 4, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.