C-2 — page 1 of 2
498 clear company licenses whose first classification is “C-2 — Insulation and Acoustical”.
1 · 2
| Place | Contractor | License | Main classification | Expires |
|---|---|---|---|---|
| Hayward, CA | #1 ACOUSTICS | 749358 | C-2 — Insulation and Acoustical | May 31, 2028 |
| Santa Barbara, CA | 805 CONTRACTING INC | 1058974 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| San Luis Obispo, CA | A & J REFRIGERATION WIGHTON A M AND SONS | 488379 | C-2 — Insulation and Acoustical | Mar 31, 2028 |
| National City, CA | A & O INSULATION INC | 1082870 | C-2 — Insulation and Acoustical | Oct 31, 2027 |
| Escondido, CA | A & P DRYWALL INC | 733780 | C-2 — Insulation and Acoustical | Apr 30, 2027 |
| Antioch, CA | A D L PROFESSIONAL INSULATION A D L PROFESSIONAL CONTRACTORS INC | 1064718 | C-2 — Insulation and Acoustical | Mar 31, 2028 |
| Union City, CA | A J HEATING & COOLING INC | 921382 | C-2 — Insulation and Acoustical | Apr 30, 2028 |
| Victorville, CA | A&A INSULATION GENERAL PARTNERSHIP | 1130927 | C-2 — Insulation and Acoustical | Dec 31, 2026 |
| Hollister, CA | A5 DRYWALL INC | 1142271 | C-2 — Insulation and Acoustical | Aug 31, 2027 |
| Rancho Cordova, CA | ABC INSULATION & SUPPLY CO CROTHER LARRY O INC | 369263 | C-2 — Insulation and Acoustical | Feb 28, 2027 |
| Anaheim, CA | ABOVE AND BEYOND INSULATION | 1155454 | C-2 — Insulation and Acoustical | May 31, 2028 |
| San Diego, CA | ABS ACOUSTICS | 931587 | C-2 — Insulation and Acoustical | Apr 30, 2027 |
| Los Angeles, CA | AC MASTERS INC | 1051755 | C-2 — Insulation and Acoustical | Mar 31, 2027 |
| Riverside, CA | ACCURATE ACOUSTICS INC | 756641 | C-2 — Insulation and Acoustical | Nov 30, 2026 |
| Pleasanton, CA | ACCURATE FIRESTOP & INSULATION ACCURATE FIRESTOP INC | 710044 | C-2 — Insulation and Acoustical | Jul 31, 2027 |
| Petaluma, CA | ACE INSULATION INCORPORATION | 962891 | C-2 — Insulation and Acoustical | Jul 31, 2027 |
| Moreno Valley, CA | ACH INSULATION LLC | 624628 | C-2 — Insulation and Acoustical | Dec 31, 2026 |
| Fresno, CA | ACOUSTIC SOLUTIONS | 920917 | C-2 — Insulation and Acoustical | Aug 31, 2028 |
| Poway, CA | ACOUSTICS & BUILDING INTERIORS INC | 561663 | C-2 — Insulation and Acoustical | Sep 30, 2028 |
| Fremont, CA | AD-IN INCORPORATED | 655165 | C-2 — Insulation and Acoustical | Sep 30, 2028 |
| Fresno, CA | ADVANCED DRYWALL CONSTRUCTION INC | 1040914 | C-2 — Insulation and Acoustical | Jun 30, 2028 |
| Palm Desert, CA | ADVANCED INSTALLATIONS INC | 520860 | C-2 — Insulation and Acoustical | Jan 31, 2028 |
| Ontario, CA | AIR CONTROL SYSTEMS INC | 639003 | C-2 — Insulation and Acoustical | Mar 31, 2028 |
| Oxnard, CA | AIR SEAL INSULATION INC | 1102423 | C-2 — Insulation and Acoustical | Mar 31, 2027 |
| Las Vegas, NV | AIRPRO MASTER INC | 1012763 | C-2 — Insulation and Acoustical | Apr 30, 2028 |
| Sacramento, CA | AIRSMITHS HOME PERFORMANCE CALIFORNIA ENERGY CONSORTIUM INC | 950795 | C-2 — Insulation and Acoustical | Aug 31, 2028 |
| La Puente, CA | ALERT INSULATION OF CALIFORNIA LLC | 1077712 | C-2 — Insulation and Acoustical | Jul 31, 2027 |
| Claremont, CA | ALL - STAR INSULATION CO | 784825 | C-2 — Insulation and Acoustical | May 31, 2027 |
| Hollister, CA | ALL ABOUT INSULATION INC | 1117122 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| Bakersfield, CA | ALL CLIMATE AIR INC | 870111 | C-2 — Insulation and Acoustical | Dec 31, 2027 |
| Fremont, CA | ALL STATE INSULATION INC | 1148090 | C-2 — Insulation and Acoustical | Dec 31, 2027 |
| San Leandro, CA | ALLEY CAT CREATIONS | 1018396 | C-2 — Insulation and Acoustical | May 31, 2027 |
| Redondo Beach, CA | ALLIED INSULATION INC | 496841 | C-2 — Insulation and Acoustical | Aug 31, 2028 |
| Visalia, CA | ALLSTATE SPRAY FOAM INSULATION & ROOFING INC | 1052735 | C-2 — Insulation and Acoustical | Jul 31, 2028 |
| San Jose, CA | ALPHA HVAC & ELECTRICAL SAN JOSE HEATING & COOLING INC | 1060833 | C-2 — Insulation and Acoustical | Nov 30, 2027 |
| Victorville, CA | ALPHA INSULATION | 1071845 | C-2 — Insulation and Acoustical | Dec 31, 2026 |
| Bakersfield, CA | ALPHA INSULATION | 1150165 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| Tracy, CA | AMERICAN ATTICS SAM'S AIR DUCT CLEANING INC | 1117229 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| Concord, CA | AMERICAN INDUSTRIAL SCAFFOLDING INC | 1008202 | C-2 — Insulation and Acoustical | Oct 31, 2027 |
| San Francisco, CA | ANDERSON ROWE & BUCKLEY INC | 91594 | C-2 — Insulation and Acoustical | Oct 31, 2028 |
| Livermore, CA | ANTHON INCORPORATED | 952663 | C-2 — Insulation and Acoustical | Aug 31, 2027 |
| Fairfield, CA | APEX ACOUSTICS INC | 1161035 | C-2 — Insulation and Acoustical | Sep 30, 2028 |
| Columbus, OH | APPLE VALLEY INSULATION A B D I COMPANY INC | 978408 | C-2 — Insulation and Acoustical | Oct 31, 2026 |
| Wilmington, DE | ARCTIC INSULATION INC | 566901 | C-2 — Insulation and Acoustical | May 31, 2027 |
| San Leandro, CA | ARR'E INSULATION SERVICES ARR'E INC | 1135868 | C-2 — Insulation and Acoustical | Apr 30, 2027 |
| Hayward, CA | ARROW ACOUSTICS INC | 260647 | C-2 — Insulation and Acoustical | Jul 31, 2028 |
| Nipomo, CA | ATI DRYWALL INC | 937206 | C-2 — Insulation and Acoustical | Aug 31, 2027 |
| Sausalito, CA | ATLANTIS INTERIORS | 618201 | C-2 — Insulation and Acoustical | Apr 30, 2027 |
| Winnetka, CA | ATTIC CATS INC | 1117987 | C-2 — Insulation and Acoustical | Mar 31, 2028 |
| Concord, CA | ATTIC GREEN U H SERVICES CORPORATION | 1105374 | C-2 — Insulation and Acoustical | May 31, 2027 |
| Manteca, CA | ATTIC REPAIR GUYS INC | 1155370 | C-2 — Insulation and Acoustical | May 31, 2028 |
| San Leandro, CA | ATTIC SOLUTIONS OF CALIFORNIA LLC | 1146271 | C-2 — Insulation and Acoustical | Nov 30, 2027 |
| West Hills, CA | ATTIC VALUE | 1136787 | C-2 — Insulation and Acoustical | Apr 30, 2027 |
| Fremont, CA | ATTICAL INC | 1126472 | C-2 — Insulation and Acoustical | Sep 30, 2028 |
| Milpitas, CA | ATTICALI ECOSHIELD | 1149346 | C-2 — Insulation and Acoustical | Jan 31, 2028 |
| Los Gatos, CA | ATTICELITE INSULATION SOLUTIONS | 1064834 | C-2 — Insulation and Acoustical | Apr 30, 2028 |
| Sacramento, CA | ATTICMAN HEATING & AIR CONDITIONING INSULATION INC | 1046762 | C-2 — Insulation and Acoustical | Sep 30, 2028 |
| La Verne, CA | AVALON ENCLOSURE SOLUTIONS INC | 1133558 | C-2 — Insulation and Acoustical | Feb 28, 2027 |
| Rancho Cordova, CA | AWAC INC | 1011744 | C-2 — Insulation and Acoustical | Mar 31, 2028 |
| Sacramento, CA | B R ACOUSTICAL INC | 817340 | C-2 — Insulation and Acoustical | Mar 31, 2028 |
| Morgan Hill, CA | BADGER HEATING & COOLING INC | 1121373 | C-2 — Insulation and Acoustical | May 31, 2028 |
| San Francisco, CA | BAF SPECIALTY INC | 765120 | C-2 — Insulation and Acoustical | Jun 30, 2027 |
| Rocklin, CA | BAIRD PAT ACOUSTICS INC | 731213 | C-2 — Insulation and Acoustical | Apr 30, 2028 |
| Ankeny, IA | BANKER INSULATION KINZLER CONSTRUCTION SERVICES INC | 1155499 | C-2 — Insulation and Acoustical | May 31, 2028 |
| Spring Valley, CA | BARRE INSULATION INC | 1054149 | C-2 — Insulation and Acoustical | May 31, 2027 |
| Wilmington, DE | BARTKOWSKI FIRESTOP INSTALLATION BARTKOWSKI LIFE SAFETY CORP | 1046655 | C-2 — Insulation and Acoustical | Nov 30, 2026 |
| San Jose, CA | BAY AREA INSULATION SERVICES INC | 1053575 | C-2 — Insulation and Acoustical | May 31, 2027 |
| Santa Clara, CA | BAY AREA MECHANICAL INSULATION DE BELLA MECHANICAL INC | 1013206 | C-2 — Insulation and Acoustical | Apr 30, 2028 |
| Murphys, CA | BAY CITY INC | 772631 | C-2 — Insulation and Acoustical | Mar 31, 2028 |
| Lathrop, CA | BAY WEST INSULATION INC | 1043333 | C-2 — Insulation and Acoustical | Aug 31, 2028 |
| Alviso, CA | BEAR FIREPROOFING BEAR INSULATION INC | 1007722 | C-2 — Insulation and Acoustical | Sep 30, 2027 |
| Alviso, CA | BEAR SCAFFOLD AND SERVICES | 973311 | C-2 — Insulation and Acoustical | May 31, 2028 |
| Sherman Oaks, CA | BEDUD INSULATION INC | 1154806 | C-2 — Insulation and Acoustical | May 31, 2028 |
| Colton, CA | BELL ROOF CO | 119946 | C-2 — Insulation and Acoustical | Jun 30, 2027 |
| Citrus Heights, CA | BERNARDINO ROOFING LLC | 817945 | C-2 — Insulation and Acoustical | May 31, 2028 |
| Santee, CA | BL ATTIC PROFESSIONAL INC | 1082717 | C-2 — Insulation and Acoustical | Jan 31, 2027 |
| Anaheim, CA | BLACK RIDGE INSULATION INC | 1141996 | C-2 — Insulation and Acoustical | Aug 31, 2027 |
| Livermore, CA | BLUE PHOENIX CONTRACTING LLC | 1113076 | C-2 — Insulation and Acoustical | Nov 30, 2027 |
| Roseville, CA | BOB JAHN'S ROOFING INC | 400569 | C-2 — Insulation and Acoustical | Apr 30, 2028 |
| Porterville, CA | BRADLEY COMMERCIAL INTERIORS LLC | 1146945 | C-2 — Insulation and Acoustical | Nov 30, 2027 |
| Northridge, CA | BROKEN DRUM INSULATION DONALD E WEBSTER INC | 299559 | C-2 — Insulation and Acoustical | Mar 31, 2027 |
| Columbus, OH | BROKEN DRUM INSULATION VISALIA INC | 831088 | C-2 — Insulation and Acoustical | Jan 31, 2028 |
| Columbus, OH | BROKEN DRUM OF BAKERSFIELD INC | 724539 | C-2 — Insulation and Acoustical | Jun 30, 2028 |
| Sacramento, CA | BROTHER'S ACOUSTICS INC | 1055030 | C-2 — Insulation and Acoustical | Jun 30, 2027 |
| Wheatland, CA | BROWN KEITH DRYWALL INC | 616543 | C-2 — Insulation and Acoustical | Jul 31, 2027 |
| El Cajon, CA | BSC-NEVELL JV LLC | 1098599 | C-2 — Insulation and Acoustical | Nov 30, 2026 |
| Madison, WI | BUILDERS INSULATION OF CALIFORNIA LLC | 1059499 | C-2 — Insulation and Acoustical | Oct 31, 2027 |
| Menifee, CA | C J P INSULATION | 1055043 | C-2 — Insulation and Acoustical | Jun 30, 2027 |
| San Francisco, CA | C K INTERIORS INC | 939658 | C-2 — Insulation and Acoustical | Oct 31, 2027 |
| San Diego, CA | C M FIRESTOP INC | 775289 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| San Diego, CA | C M S INTERIORS INC | 871262 | C-2 — Insulation and Acoustical | Sep 30, 2028 |
| San Marcos, CA | C R INSULATION INC | 1038077 | C-2 — Insulation and Acoustical | Apr 30, 2028 |
| Hayward, CA | C Y C COMMERCIAL WALL COVERINGS C Y C COMMERCIAL INTERIORS INC | 990923 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| Manteca, CA | C2 ACOUSTICAL AND INSULATION SPECIALTY | 1041130 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| Tracy, CA | CA ATTIC SOLUTIONS INC | 1120795 | C-2 — Insulation and Acoustical | May 31, 2028 |
| Chino, CA | CAL - THERM INC | 730669 | C-2 — Insulation and Acoustical | Dec 31, 2026 |
| Oceanside, CA | CAL COM INSULATION INC | 977613 | C-2 — Insulation and Acoustical | Oct 31, 2028 |
| Porterville, CA | CAL FOAM INC | 1123937 | C-2 — Insulation and Acoustical | Jul 31, 2028 |
| Rancho Cordova, CA | CAL-ACOUSTIC INTERIORS INC | 657810 | C-2 — Insulation and Acoustical | Nov 30, 2026 |
| Carmel Valley, CA | CALIFORNIA ACOUSTIC CALIFORNIA ACOUSTIC CEILINGS INC | 991823 | C-2 — Insulation and Acoustical | Apr 30, 2028 |
| Fresno, CA | CALIFORNIA COMFORT ACOUSTICS INC | 986201 | C-2 — Insulation and Acoustical | Aug 31, 2027 |
| Carlsbad, CA | CALIFORNIA FIRE STOP INC | 991135 | C-2 — Insulation and Acoustical | Mar 31, 2028 |
| Chino, CA | CALIFORNIA SPECIALTY INSULATION INC | 957829 | C-2 — Insulation and Acoustical | Jan 31, 2027 |
| North Highlands, CA | CAPITAL CITY DRYWALL INC | 787193 | C-2 — Insulation and Acoustical | Nov 30, 2026 |
| Modesto, CA | CASSLE GARAGE DOOR COMPANY CASSLE DOOR & INSULATION CO INC | 282204 | C-2 — Insulation and Acoustical | Dec 31, 2026 |
| Los Banos, CA | CAV INSULATION INC | 1059204 | C-2 — Insulation and Acoustical | Oct 31, 2027 |
| Los Alamitos, CA | CEILING CONCEPTS INCORPORATED | 461151 | C-2 — Insulation and Acoustical | Aug 31, 2028 |
| Sacramento, CA | CEILING EXPERTS INC | 917629 | C-2 — Insulation and Acoustical | Apr 30, 2027 |
| Benicia, CA | CELINSULATION CORPORATION | 948103 | C-2 — Insulation and Acoustical | Dec 31, 2027 |
| Monrovia, CA | CELL - CRETE CORPORATION | 243404 | C-2 — Insulation and Acoustical | Aug 31, 2027 |
| North Highlands, CA | CEMCO ACOUSTICS VMAK ACOUSTICS INC | 1054206 | C-2 — Insulation and Acoustical | Jun 30, 2027 |
| Los Banos, CA | CEN - CAL AIR INCORPORATED | 884567 | C-2 — Insulation and Acoustical | Oct 31, 2026 |
| San Jose, CA | CENTRAL CALIFORNIA INSULATION CALIFORNIA INSULATION CONTRACTOR INC | 1018810 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| San Luis Obispo, CA | CENTRAL COAST INSULATION INC | 1052324 | C-2 — Insulation and Acoustical | Apr 30, 2027 |
| Madera, CA | CENTRAL COATING COMPANY INC | 458848 | C-2 — Insulation and Acoustical | Jul 31, 2028 |
| Grover Beach, CA | CENTRAL DRYWALL INC | 707484 | C-2 — Insulation and Acoustical | May 31, 2027 |
| Bakersfield, CA | CENTRAL VALLEY INSULATION INC | 1018061 | C-2 — Insulation and Acoustical | Sep 30, 2028 |
| Temecula, CA | CERTIFIED MECHANICAL SYSTEMS INC | 1062735 | C-2 — Insulation and Acoustical | Jan 31, 2028 |
| Valencia, CA | CHANEY C G COMPANY INC | 762715 | C-2 — Insulation and Acoustical | May 31, 2027 |
| Chicago, IL | CHICAGO FLYHOUSE INCORPORATED | 1023319 | C-2 — Insulation and Acoustical | Feb 28, 2027 |
| San Francisco, CA | CITY WIDE INSULATION COMPANY INC | 850842 | C-2 — Insulation and Acoustical | Oct 31, 2026 |
| Bakersfield, CA | CJM JR SUSPENDED CEILINGS INC | 930909 | C-2 — Insulation and Acoustical | Apr 30, 2027 |
| Bakersfield, CA | CLIMATESHIELD INSULATION | 1138138 | C-2 — Insulation and Acoustical | May 31, 2027 |
| Daytona Beach, FL | COAST BUILDING PRODUCTS AMERICAN NATIONAL INSULATION INC | 465440 | C-2 — Insulation and Acoustical | Jan 31, 2028 |
| Valley Springs, CA | COLDANI INSULATION & GARAGE DOORS | 994091 | C-2 — Insulation and Acoustical | Apr 30, 2027 |
| Rancho Cucamonga, CA | COMFORT MECHANICAL ENTERPRISES INC | 608875 | C-2 — Insulation and Acoustical | Jan 31, 2027 |
| North Hollywood, CA | COMMERCIAL INTERIORS ACOUSTICS INC | 669626 | C-2 — Insulation and Acoustical | May 31, 2027 |
| Lodi, CA | COMMERCIAL SPECIALTY INC | 448550 | C-2 — Insulation and Acoustical | Aug 31, 2027 |
| Riverside, CA | CONTRACTORS INSUL MATERIAL SERVICES | 1145266 | C-2 — Insulation and Acoustical | Oct 31, 2027 |
| San Marcos, CA | COOL-ROOF SYSTEMS COMMON SENSE SOLUTIONS INC | 853763 | C-2 — Insulation and Acoustical | Jan 31, 2027 |
| Colton, CA | CORONA COATINGS CORPORATION | 334755 | C-2 — Insulation and Acoustical | Mar 31, 2028 |
| Simi Valley, CA | COUSTIC-GLO JHN INC | 585006 | C-2 — Insulation and Acoustical | Jan 31, 2028 |
| Sherman Oaks, CA | COZY COMFORT INSULATION | 1140834 | C-2 — Insulation and Acoustical | Jul 31, 2027 |
| San Diego, CA | CR SPECIALTY INSULATION INC | 1005200 | C-2 — Insulation and Acoustical | Dec 31, 2027 |
| Pleasanton, CA | CRAWLSPACE CLEAN & INSULATION INCORPORATED | 1063093 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| Concord, CA | CREATIVE CEILINGS INC | 781556 | C-2 — Insulation and Acoustical | Jul 31, 2028 |
| Vallejo, CA | CRG INSULATION & ACOUSTICAL INC | 1128829 | C-2 — Insulation and Acoustical | Nov 30, 2026 |
| Milpitas, CA | CUSTOM DRYWALL INC | 263495 | C-2 — Insulation and Acoustical | Nov 30, 2027 |
| Sparks, NV | D & D ROOFING AND SHEET METAL INC | 486667 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| Oakdale, CA | D & D SPRAY SYSTEMS INC | 1088690 | C-2 — Insulation and Acoustical | Mar 31, 2028 |
| Fairfield, CA | D C ACOUSTICS AND INSULATION INC | 733521 | C-2 — Insulation and Acoustical | Jun 30, 2028 |
| Valencia, CA | D C ACOUSTICS INC | 699658 | C-2 — Insulation and Acoustical | Jan 31, 2027 |
| Oxnard, CA | D J INSULATION INC | 856787 | C-2 — Insulation and Acoustical | Nov 30, 2027 |
| Santa Rosa, CA | D W ACOUSTICS INC | 879037 | C-2 — Insulation and Acoustical | Sep 30, 2027 |
| Medford, OR | D2 D2 SQUARED INDUSTRIAL SERVICES LLC | 1035992 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| Medford, OR | D2 SERVICES INC | 597566 | C-2 — Insulation and Acoustical | Jul 31, 2028 |
| Temecula, CA | DADS HEATING & AIR CONDITIONING INC | 922696 | C-2 — Insulation and Acoustical | Sep 30, 2028 |
| Buellton, CA | DAHL AIR CONDITIONING INC | 393444 | C-2 — Insulation and Acoustical | Sep 30, 2028 |
| Newhall, CA | DAVIS D PLASTERING INC | 853189 | C-2 — Insulation and Acoustical | Jan 31, 2027 |
| Lancaster, PA | DAY & ZIMMERMANN NPS INC | 462629 | C-2 — Insulation and Acoustical | Nov 30, 2027 |
| Brentwood, CA | DEAN'S ACOUSTICAL CEILINGS INC | 475711 | C-2 — Insulation and Acoustical | Jun 30, 2027 |
| Redwood City, CA | DELTA INSULATION SERVICES INC | 1117247 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| Yucca Valley, CA | DESERT INSULATION INC | 833710 | C-2 — Insulation and Acoustical | Mar 31, 2028 |
| Yuma, AZ | DESERT INSULATION LLC | 1127341 | C-2 — Insulation and Acoustical | Oct 31, 2026 |
| Chico, CA | DIAZ INSULATION LLC | 951769 | C-2 — Insulation and Acoustical | Mar 31, 2028 |
| Angels Camp, CA | DISTINCTIVE METALS, ANGELS HEATING & AIR CONDITIONING ANGELS SHEET METAL INC | 341424 | C-2 — Insulation and Acoustical | Dec 31, 2027 |
| Anaheim, CA | DITTEMORE INSULATION CONTRACTORS INC | 750723 | C-2 — Insulation and Acoustical | Jun 30, 2028 |
| Fontana, CA | DLAB DRYWALL INC | 986090 | C-2 — Insulation and Acoustical | Mar 31, 2027 |
| San Pedro, CA | DR INSULATION ROMESBURG DAVID & CO | 1148181 | C-2 — Insulation and Acoustical | Dec 31, 2027 |
| Citrus Heights, CA | DRYWALL ACOUSTICS INC | 1076993 | C-2 — Insulation and Acoustical | Jun 30, 2027 |
| North Highlands, CA | DS INSOLATION CORP | 1115017 | C-2 — Insulation and Acoustical | Jan 31, 2028 |
| San Diego, CA | DUDLEY INSULATION INC | 992550 | C-2 — Insulation and Acoustical | Jul 31, 2028 |
| North Highlands, CA | EAGLE PAINTING & DRYWALL INC | 963338 | C-2 — Insulation and Acoustical | Jul 31, 2027 |
| Danville, CA | EAGLE SHIELD TECHNOLOGIES INC | 993748 | C-2 — Insulation and Acoustical | Jun 30, 2028 |
| El Cajon, CA | EARP INSULATION | 916015 | C-2 — Insulation and Acoustical | Sep 30, 2028 |
| Sonoma, CA | ECCO INSULATION INC | 682377 | C-2 — Insulation and Acoustical | Jun 30, 2028 |
| Lodi, CA | ECHELON FIRESTOP INC | 1017472 | C-2 — Insulation and Acoustical | Aug 31, 2028 |
| San Francisco, CA | ECLIPSE ACOUSTICS TRAVIS MEDIA GROUP | 1140353 | C-2 — Insulation and Acoustical | Jul 31, 2027 |
| Riverside, CA | ECM ACOUSTIC EFFICIENT CLEANING & MAINTENANCE INC | 1058212 | C-2 — Insulation and Acoustical | Sep 30, 2027 |
| Orangevale, CA | ECO INSULATION COMPANY LLC | 1129297 | C-2 — Insulation and Acoustical | Nov 30, 2026 |
| Roseville, CA | ECOATTICS INC | 963041 | C-2 — Insulation and Acoustical | Jul 31, 2027 |
| Placentia, CA | ECONO AIR MDDR INC | 445220 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| Rancho Cordova, CA | ELITE ACOUSTICS INC | 1029090 | C-2 — Insulation and Acoustical | Jul 31, 2027 |
| Menifee, CA | ELITE INSULATION ELITE MECHANICAL INSULATION | 1148517 | C-2 — Insulation and Acoustical | Jan 31, 2028 |
| Irvine, CA | ELLJAY ACOUSTICS INC | 1082089 | C-2 — Insulation and Acoustical | Oct 31, 2027 |
| Chatsworth, CA | ELM INSULATION & SOUND SOLUTIONS | 1122923 | C-2 — Insulation and Acoustical | Jun 30, 2028 |
| San Francisco, CA | EMERALD INSULATION & ACOUSTICAL INC | 1134153 | C-2 — Insulation and Acoustical | Mar 31, 2027 |
| Windsor, CA | EMPIRE INSULATION CONTRACTORS | 819279 | C-2 — Insulation and Acoustical | Apr 30, 2027 |
| Roseville, CA | ENGEL INSULATION INC | 745646 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| Fullerton, CA | ENSO INSULATION ENSO BUILDING SOLUTIONS INC | 1102528 | C-2 — Insulation and Acoustical | Mar 31, 2027 |
| Woodland Hills, CA | EVERGUARD HOME INSULATION INC | 224328 | C-2 — Insulation and Acoustical | May 31, 2028 |
| Corona, CA | EXCEL ACOUSTICS INC | 724511 | C-2 — Insulation and Acoustical | Jan 31, 2028 |
| Fresno, CA | EXPRESS INSULATION INC | 1005178 | C-2 — Insulation and Acoustical | Jul 31, 2027 |
| Simi Valley, CA | FAMILY AIR CONDITIONING INC | 292613 | C-2 — Insulation and Acoustical | Jul 31, 2027 |
| San Diego, CA | FINEST CITY ACOUSTICS INC | 882817 | C-2 — Insulation and Acoustical | Apr 30, 2028 |
| Santa Clara, CA | FIRESTOP INSULATION & ACOUSTICAL SPECIALTIES FIRESTOP SPECIALTIES INC | 1081664 | C-2 — Insulation and Acoustical | Sep 30, 2027 |
| Grass Valley, CA | FOAM KING | 1027544 | C-2 — Insulation and Acoustical | Jun 30, 2027 |
| Simi Valley, CA | G & S ACOUSTICS INC | 381678 | C-2 — Insulation and Acoustical | Sep 30, 2027 |
| Capistrano Beach, CA | G C ACOUSTICS INC | 623801 | C-2 — Insulation and Acoustical | Jul 31, 2027 |
| Ventura, CA | G C CUSTOM WALLCOVERINGS INC | 1052301 | C-2 — Insulation and Acoustical | Apr 30, 2027 |
| Daytona Beach, FL | GALE CONTRACTOR SERVICES BUILDER SERVICES GROUP INC | 709417 | C-2 — Insulation and Acoustical | Jul 31, 2027 |
| San Marcos, CA | GARCIA'S PRECISION ACOUSTICS INC | 605515 | C-2 — Insulation and Acoustical | May 31, 2027 |
| Villa Park, CA | GARD ACOUSTIC INC | 486468 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| Pocatello, ID | GBI INSULATION INC | 862702 | C-2 — Insulation and Acoustical | Aug 31, 2027 |
| Fresno, CA | GENESIS ACOUSTICS INC | 627889 | C-2 — Insulation and Acoustical | Sep 30, 2027 |
| Emeryville, CA | GIAMPOLINI & CO | 322282 | C-2 — Insulation and Acoustical | Oct 31, 2026 |
| Redding, CA | GIBSON HEATING AND AIR CONDITIONING COMPLETE COMFORT INC | 385291 | C-2 — Insulation and Acoustical | Dec 31, 2027 |
| San Francisco, CA | GILMORE E B & SONS MECHANICAL SERVICES INC | 740278 | C-2 — Insulation and Acoustical | Sep 30, 2027 |
| Verdi, NV | GO GREEN INSULATION GO GREEN CONSTRUCTION INC | 940286 | C-2 — Insulation and Acoustical | Nov 30, 2027 |
| Salinas, CA | GODINEZ INSULATION INC | 1126322 | C-2 — Insulation and Acoustical | Sep 30, 2028 |
| Lompoc, CA | GOLD COAST INSULATION INC | 1128613 | C-2 — Insulation and Acoustical | Nov 30, 2026 |
| Grass Valley, CA | GOLD COUNTRY ROOFING | 453905 | C-2 — Insulation and Acoustical | Jan 31, 2028 |
| Menlo Park, CA | GOLDEN BAY INSULATION INC | 967498 | C-2 — Insulation and Acoustical | Nov 30, 2027 |
| Concord, CA | GOLDEN GATE FENCE ATTIC EXPERTS INC | 991038 | C-2 — Insulation and Acoustical | Mar 31, 2028 |
| San Lorenzo, CA | GOLDEN STATE INSULATION | 1016833 | C-2 — Insulation and Acoustical | Aug 31, 2028 |
| Moreno Valley, CA | GONZALEZ INSULATION CORP | 888344 | C-2 — Insulation and Acoustical | Dec 31, 2026 |
| Reno, NV | GORE ACOUSTICS & DRYWALL SYSTEMS INC | 947044 | C-2 — Insulation and Acoustical | May 31, 2028 |
| Huntington Beach, CA | GRANI INSTALLATION INC | 307767 | C-2 — Insulation and Acoustical | Mar 31, 2027 |
| San Diego, CA | GREAT WESTERN DRYWALL POLVERA DRYWALL CORPORATION | 569654 | C-2 — Insulation and Acoustical | Jun 30, 2027 |
| Fairfield, CA | GREEN MOUNTAIN INSULATION CONSTRUCTION AMERICAN INSULATION & SCAFFOLDING LLC | 1114923 | C-2 — Insulation and Acoustical | Jan 31, 2028 |
| Santa Clara, CA | GREENSHIELD INC | 981761 | C-2 — Insulation and Acoustical | Aug 31, 2027 |
| Dixon, CA | GREINER HEATING AIR AND ELECTRIC INC | 365955 | C-2 — Insulation and Acoustical | May 31, 2028 |
| San Diego, CA | GRIFFIS DARYL ACOUSTICS INC | 402601 | C-2 — Insulation and Acoustical | Apr 30, 2027 |
| Los Gatos, CA | GRIZZLY CEILING SYSTEMS INC | 786800 | C-2 — Insulation and Acoustical | Nov 30, 2026 |
| Riverside, CA | GTA DRYWALL INC | 958980 | C-2 — Insulation and Acoustical | May 31, 2028 |
| Livermore, CA | GUARDIAN FIRESTOP AND INSULATION LLC | 1125232 | C-2 — Insulation and Acoustical | Aug 31, 2028 |
| Galt, CA | GUARDIAN SPRAY FOAM INC | 958155 | C-2 — Insulation and Acoustical | Aug 31, 2028 |
| Campbell, CA | GUIDRY T I ACOUSTICS INC | 507877 | C-2 — Insulation and Acoustical | Nov 30, 2026 |
| Lincoln, CA | H I S G & M HARGAN INC | 787335 | C-2 — Insulation and Acoustical | Nov 30, 2026 |
| San Bernardino, CA | HAMILTON CEILING SYSTEMS INC | 787546 | C-2 — Insulation and Acoustical | Dec 31, 2027 |
| Diamond Bar, CA | HAMMOND DRYWALL CONSTRUCTION HAMMOND CONSTRUCTION SERVICES INC | 956694 | C-2 — Insulation and Acoustical | Jan 31, 2027 |
| Redding, CA | HANES FLOOR INCORPORATED | 232505 | C-2 — Insulation and Acoustical | May 31, 2027 |
| Santa Rosa, CA | HANSON J W HEATING AND AIR | 858773 | C-2 — Insulation and Acoustical | Mar 31, 2028 |
| Riverside, CA | HASCO HEATING AIRCONDITIONING SERVICE COMPANY INC | 519360 | C-2 — Insulation and Acoustical | Oct 31, 2027 |
| Baldwin Park, CA | HC INSULATION & ACOUSTICAL INC | 1111774 | C-2 — Insulation and Acoustical | Oct 31, 2027 |
| Santa Rosa, CA | HIGHPOINT ACOUSTIC SPECIALTIES INC. | 1036311 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| Healdsburg, CA | HINDS BROS COMPANY INC | 470334 | C-2 — Insulation and Acoustical | Mar 31, 2027 |
| Watsonville, CA | HM INSULATION INC | 1093732 | C-2 — Insulation and Acoustical | Sep 30, 2027 |
| Alpine, CA | HOFSTEE DRYWALL | 766538 | C-2 — Insulation and Acoustical | Jul 31, 2027 |
| Hollister, CA | HOLLISTER ROOFING INC PERDUE ENTERPRISES INC | 588775 | C-2 — Insulation and Acoustical | May 31, 2027 |
| Lynwood, CA | HOME CARE INSULATION HOME CARE SOLUTION SERVICES INC | 1148441 | C-2 — Insulation and Acoustical | Dec 31, 2027 |
| Anaheim, CA | HOME COMFORT USA HEATING & COOLING HOME COMFORT USA HEATING COOLING PLUMBING & ELECTRICAL LLC | 1106323 | C-2 — Insulation and Acoustical | Jun 30, 2027 |
| Anaheim, CA | HONEYCUTT TEAR OFF INC | 313641 | C-2 — Insulation and Acoustical | Jan 31, 2027 |
| Anaheim, CA | HOYT ROOFS INC | 606111 | C-2 — Insulation and Acoustical | Dec 31, 2026 |
| Granada Hills, CA | HUNTER'S INSULATION INC | 1059930 | C-2 — Insulation and Acoustical | May 31, 2027 |
| San Jose, CA | HVAC GURU INSULATION GURU INC | 1031326 | C-2 — Insulation and Acoustical | Sep 30, 2027 |
| Oakland, CA | HVAC OREN SERVICES LLC | 1048662 | C-2 — Insulation and Acoustical | Jan 31, 2027 |
| Porterville, CA | ICON PHOENIX INSULATION | 1159316 | C-2 — Insulation and Acoustical | Aug 31, 2028 |
| San Jose, CA | IDEAL ATTIC INSULATION INC | 1095944 | C-2 — Insulation and Acoustical | Aug 31, 2028 |
| San Leandro, CA | IMPERIAL INSULATION LLC | 1144362 | C-2 — Insulation and Acoustical | Nov 30, 2027 |
| St Peters, MO | INDUSTRIAL CONSTRUCTION & ENGINEERING COMPANY | 838559 | C-2 — Insulation and Acoustical | May 31, 2028 |
| Las Vegas, NV | INFINITY INSULATION AND ACOUSTICAL CONTRACTORS INFINITY CONTRACTORS LLC | 1158408 | C-2 — Insulation and Acoustical | Jul 31, 2028 |
| Grand Terrace, CA | INLAND EMPIRE ROOFING CO LLC | 552188 | C-2 — Insulation and Acoustical | Apr 30, 2028 |
| Riverside, CA | INNOVATED ACOUSTICS CORP | 1058140 | C-2 — Insulation and Acoustical | Sep 30, 2027 |
| Fresno, CA | INSUL - FLOW INC | 819642 | C-2 — Insulation and Acoustical | May 31, 2027 |
| Concord, CA | INSUL - TECHS INC | 1011102 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| Perris, CA | INSUL-LIGHT INSULATION COMPANY INC | 608073 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| Santa Barbara, CA | INSULATE SB INC | 963692 | C-2 — Insulation and Acoustical | Jul 31, 2027 |
| Murrieta, CA | INSULATION COMMANDOS OF TEMECULA VALLEY & NORTH SAN DIEGO STELLAR ZEPHYR HOLDINGS INC | 1128145 | C-2 — Insulation and Acoustical | Oct 31, 2026 |
| Winnetka, CA | INSULATION CONTRACTORS ATTIC RESCUE | 1144403 | C-2 — Insulation and Acoustical | Oct 31, 2027 |
| Redding, CA | INSULATION NINJAS LLC | 1152038 | C-2 — Insulation and Acoustical | Mar 31, 2028 |
| Sylmar, CA | INSULATION SERVICES OF CALIFORNIA LLC | 1124372 | C-2 — Insulation and Acoustical | Jan 31, 2027 |
| Santa Rosa, CA | INSULATION SOLUTIONS AIRCOM HOME SERVICES | 1063250 | C-2 — Insulation and Acoustical | Feb 29, 2028 |
| Rocklin, CA | INSULATION SOLUTIONS IS GROUP INC | 920558 | C-2 — Insulation and Acoustical | Aug 31, 2028 |
| Pleasanton, CA | INSULATION SPECIALTIES INC | 464164 | C-2 — Insulation and Acoustical | Oct 31, 2028 |
| Fresno, CA | INSULATION SPECIALTY CONTRACTORS M ONE CONTRACTING INC | 1023520 | C-2 — Insulation and Acoustical | Feb 28, 2027 |
| Livermore, CA | INSULTECH CONTRACTING LLC | 1111192 | C-2 — Insulation and Acoustical | Oct 31, 2027 |
| Alpine, CA | INTEGRITY SPECIALTY CONTRACTING LLC | 1109416 | C-2 — Insulation and Acoustical | Aug 31, 2027 |
| Irvine, CA | INTEX DRYWALL INC | 851471 | C-2 — Insulation and Acoustical | Aug 31, 2027 |
| Novato, CA | IRELAND INTERIOR SYSTEMS INC | 315164 | C-2 — Insulation and Acoustical | Aug 31, 2027 |
| Carlsbad, CA | ISC IMPERIAL SPECIALTY CONTRACTING INC | 1039696 | C-2 — Insulation and Acoustical | May 31, 2028 |
| Chatsworth, CA | J & G INSULATION INC | 1162050 | C-2 — Insulation and Acoustical | Sep 30, 2028 |
| Lakeside, CA | J & L INSULATION INC | 472996 | C-2 — Insulation and Acoustical | May 31, 2027 |
| Glendora, CA | J - K INSULATION COMPANY INC | 531108 | C-2 — Insulation and Acoustical | Sep 30, 2027 |
| El Cajon, CA | J AND M INTERIOR SPECIALTIES INC | 572769 | C-2 — Insulation and Acoustical | Jul 31, 2027 |
| Vallejo, CA | J B L ACOUSTICS J B L INDUSTRIES INC | 979514 | C-2 — Insulation and Acoustical | Apr 30, 2028 |
| Tracy, CA | J D FIRESTOP PROS INC | 891905 | C-2 — Insulation and Acoustical | Dec 31, 2027 |
| Pittsburg, CA | J M INSULATION INC | 1024947 | C-2 — Insulation and Acoustical | Mar 31, 2027 |
| Gilroy, CA | JACK'S OVERHEAD DOORS AND INSULATION INC | 437240 | C-2 — Insulation and Acoustical | Mar 31, 2027 |
| Atwater, CA | JDA INSULATION | 1112880 | C-2 — Insulation and Acoustical | Nov 30, 2027 |
| San Diego, CA | JERICO FIRESTOPPING | 1089078 | C-2 — Insulation and Acoustical | Mar 31, 2028 |
| Live Oak, CA | JM INSULATION GROUP | 982502 | C-2 — Insulation and Acoustical | Dec 31, 2027 |
| Cutten, CA | JNG INSULATION PROS INC | 1041570 | C-2 — Insulation and Acoustical | Jul 31, 2028 |
| Vacaville, CA | JOHNSON ACOUSTICS INC | 1109012 | C-2 — Insulation and Acoustical | Aug 31, 2027 |
| Fresno, CA | JOHNSON DRYWALL CALCOM CONTRACTING INC | 845439 | C-2 — Insulation and Acoustical | Mar 31, 2027 |
| Oakland, CA | JOHNSON'S INSULATION | 1051108 | C-2 — Insulation and Acoustical | Mar 31, 2027 |
| Garden Grove, CA | JORDAN ROOF COMPANY | 406783 | C-2 — Insulation and Acoustical | Sep 30, 2027 |
| Anaheim, CA | KARCHER INSULATION INC | 309141 | C-2 — Insulation and Acoustical | Jan 31, 2027 |
| Sparks, NV | KC INSULATION INC | 830494 | C-2 — Insulation and Acoustical | Dec 31, 2027 |
| Santa Fe Springs, CA | KERCO INC | 608312 | C-2 — Insulation and Acoustical | Jun 30, 2028 |
| Whittier, CA | KIKO'S INSULATION TORRES INSULATION INC | 1100167 | C-2 — Insulation and Acoustical | Jan 31, 2027 |
| Santa Monica, CA | KOALA INSULATION OF THE WESTSIDE MULFORD HOLDINGS INC | 1128251 | C-2 — Insulation and Acoustical | Oct 31, 2028 |
| North Hollywood, CA | KREIT MECHANICAL ASSOCIATES INC | 819950 | C-2 — Insulation and Acoustical | May 31, 2027 |
| Mission Viejo, CA | KRULL ACOUSTICS INC | 581612 | C-2 — Insulation and Acoustical | Nov 30, 2027 |
| Livermore, CA | L J INTERIORS INC | 605932 | C-2 — Insulation and Acoustical | Nov 30, 2026 |
| Palmdale, CA | LANCASTER INSULATION INC | 986286 | C-2 — Insulation and Acoustical | Apr 30, 2027 |
| Simpsonville, KY | LANHAM INSULATION INC | 1015244 | C-2 — Insulation and Acoustical | Jun 30, 2028 |
| Novato, CA | LEGACY ACOUSTIC INTERIORS | 1141625 | C-2 — Insulation and Acoustical | Aug 31, 2027 |
| Salida, CA | LEGACY INSULATION INC | 1070962 | C-2 — Insulation and Acoustical | Nov 30, 2026 |
| Sylmar, CA | LEOS INSULATION LLC | 1160010 | C-2 — Insulation and Acoustical | Aug 31, 2028 |
| Sacramento, CA | LEVEL 5 ACOUSTICS INC | 1110414 | C-2 — Insulation and Acoustical | Sep 30, 2027 |
| Santa Clara, CA | LEVEL 5 INC | 1012649 | C-2 — Insulation and Acoustical | Apr 30, 2028 |
| Tulare, CA | LEVIN MORRIS AND SON | 167881 | C-2 — Insulation and Acoustical | Jan 31, 2028 |
| Los Angeles, CA | LINCOLN HALL ACOUSTICS LINCOLN HALL COMPANY INC | 1074714 | C-2 — Insulation and Acoustical | Apr 30, 2027 |
| Whittier, CA | LONG BEACH ACOUSTICS MRMAJANO INC | 988060 | C-2 — Insulation and Acoustical | Oct 31, 2027 |
| Coachella, CA | LOPEZ CARLOS INSULATION & ACOUSTICAL C L GENERAL CONSTRUCTION INC | 927952 | C-2 — Insulation and Acoustical | Jan 31, 2028 |
| Manteca, CA | LUCATERO INSULATION SPECIALTIES | 1128750 | C-2 — Insulation and Acoustical | Nov 30, 2026 |
| Fairfield, CA | LUXE SPRAY FOAM INSULATION | 1157953 | C-2 — Insulation and Acoustical | Jul 31, 2028 |
| La Mirada, CA | M G INTERIORS INC | 575194 | C-2 — Insulation and Acoustical | Feb 28, 2027 |
| Nuevo, CA | MACEDO INSULATION INC | 1161789 | C-2 — Insulation and Acoustical | Sep 30, 2028 |
Alphabetical order — this site ranks no one. Company licenses with a clear status in the CSLB file of October 1, 2026. Sole owners are not on this site; for today's status and complaints, use the CSLB's Instant License Check. How to read this.