C-51 — page 1 of 3
615 clear company licenses whose first classification is “C-51 — Structural Steel”.
| Place | Contractor | License | Main classification | Expires |
|---|---|---|---|---|
| Salinas, CA | A & G MACHINE SHOP INC | 878716 | C-51 — Structural Steel | Jun 30, 2028 |
| Norco, CA | A & R STEEL FAB INC | 732321 | C-51 — Structural Steel | Feb 28, 2027 |
| Sylmar, CA | A A IRON CO | 970600 | C-51 — Structural Steel | Mar 31, 2028 |
| Lakeside, CA | A ABSOLUTE CONSTRUCTION WELDING INC | 1046933 | C-51 — Structural Steel | Nov 30, 2026 |
| San Jose, CA | A B S MANUFACTURERS INC | 613821 | C-51 — Structural Steel | Feb 28, 2027 |
| Delano, CA | A R STEEL INC | 1143654 | C-51 — Structural Steel | Sep 30, 2027 |
| Stockton, CA | A W MANUFACTURING SPECIALIST INC | 928387 | C-51 — Structural Steel | Feb 28, 2027 |
| Newark, CA | A&S STRUCTURAL FORCE CO | 1149385 | C-51 — Structural Steel | Jan 31, 2028 |
| Phelan, CA | A&S STRUCTURAL STEEL INC | 1148056 | C-51 — Structural Steel | Dec 31, 2027 |
| Tucson, AZ | A-Z STEEL COMPANY A THRU Z CONSULTING & DISTRIBUTING INC | 1049782 | C-51 — Structural Steel | Feb 28, 2027 |
| Fresno, CA | AAW METALWORKS INC | 905594 | C-51 — Structural Steel | Feb 28, 2027 |
| Mesa, AZ | ABLE STEEL FABRICATORS INC | 505830 | C-51 — Structural Steel | Feb 28, 2027 |
| Fresno, CA | ABNEY STEEL ERECTORS INC | 743210 | C-51 — Structural Steel | Dec 31, 2026 |
| Oceanside, CA | ACE WELDING AND FABRICATION INC | 991341 | C-51 — Structural Steel | Mar 31, 2028 |
| Bell, CA | ACIES IRON WORKS LLC | 1010793 | C-51 — Structural Steel | May 31, 2027 |
| San Bernardino, CA | AD METAL BUILDING INC | 1148420 | C-51 — Structural Steel | Dec 31, 2027 |
| Terrebonne | ADF STRUCTURAL STEEL INC | 1007253 | C-51 — Structural Steel | Sep 30, 2027 |
| San Pedro, CA | ADVANCE WELDING INCORPORATED | 747545 | C-51 — Structural Steel | Jul 31, 2027 |
| Salinas, CA | ADVANCED STEEL FABRICATION INC | 794692 | C-51 — Structural Steel | May 31, 2027 |
| Grangeville, ID | ADVANCED WELDING & STEEL INC | 1137384 | C-51 — Structural Steel | May 31, 2027 |
| Monterey, CA | ADVANTAGE PRODUCTS INC | 809097 | C-51 — Structural Steel | Jun 30, 2028 |
| Santa Ana, CA | AE&F INC | 1113608 | C-51 — Structural Steel | Dec 31, 2027 |
| Ennis, TX | AFC STEEL FABRICATORS & ERECTORS AMERICASE FABRICATION & CONSTRUCTION LLC | 1074861 | C-51 — Structural Steel | Apr 30, 2027 |
| Scottsdale, AZ | AGATE STEEL INC | 952062 | C-51 — Structural Steel | Sep 30, 2028 |
| Modesto, CA | AGGRESSIVE WELDING SERVICES INCORPORATED | 841755 | C-51 — Structural Steel | Aug 31, 2028 |
| Chino, CA | AJ STEEL ERECTOR INC | 1148926 | C-51 — Structural Steel | Jan 31, 2028 |
| San Diego, CA | ALARCON STEEL PRODUCTS INC | 1151725 | C-51 — Structural Steel | Mar 31, 2028 |
| Los Angeles, CA | ALCATRAZ IRON INC | 1057911 | C-51 — Structural Steel | Sep 30, 2027 |
| Riverside, CA | ALCHEMY IRON WORKS | 1144684 | C-51 — Structural Steel | Oct 31, 2027 |
| Fremont, CA | ALL WEST FABRICATORS INC | 722400 | C-51 — Structural Steel | May 31, 2028 |
| Santa Monica, CA | ALLEGRO STEEL INC | 1050282 | C-51 — Structural Steel | Feb 28, 2027 |
| Livermore, CA | ALLEN STEEL S & K METAL FABRICATORS INC | 566721 | C-51 — Structural Steel | Feb 29, 2028 |
| Ridgefield, WA | ALLIANCE INDUSTRIAL GROUP INC | 845946 | C-51 — Structural Steel | Sep 30, 2028 |
| Pacoima, CA | ALPHABET STEEL FAB INC | 1158477 | C-51 — Structural Steel | Jul 31, 2028 |
| Liberty Lake, WA | ALUMINUM PRODUCTS LIBERTY LAKE LLC | 1111910 | C-51 — Structural Steel | Oct 31, 2027 |
| Pacoima, CA | AMERICAN BULL METALWORKS INC | 998070 | C-51 — Structural Steel | Oct 31, 2026 |
| Joshua, TX | AMERICAN CARPORTS INC | 879371 | C-51 — Structural Steel | Jun 30, 2028 |
| Billing, MT | AMERICAN INDUSTRIES INC | 1068721 | C-51 — Structural Steel | Sep 30, 2028 |
| Ridgecrest, CA | AMERICAN IRON MCBRIDES WELDING | 1061667 | C-51 — Structural Steel | Dec 31, 2027 |
| Billings, MT | AMERICAN STEEL INC | 866787 | C-51 — Structural Steel | Oct 31, 2027 |
| Watsonville, CA | AMERICON INC AMERICON MANUFACTURING INC | 1051331 | C-51 — Structural Steel | May 31, 2027 |
| Bernalillo, NM | AMFABSTEEL INC | 829072 | C-51 — Structural Steel | Dec 31, 2027 |
| Beaumont, CA | ANDERSON CHARNESKY STRUCTURAL STEEL INCORPORATED | 483440 | C-51 — Structural Steel | Nov 30, 2027 |
| Lancaster, CA | ANMG WELDING | 1110115 | C-51 — Structural Steel | Sep 30, 2027 |
| Chico, CA | APEX STEEL INC | 1051065 | C-51 — Structural Steel | Jun 30, 2027 |
| Irvine, CA | ARETE IRONWORKS | 1127953 | C-51 — Structural Steel | Oct 31, 2026 |
| Gilbert, AZ | ARIZONA SKYLINE STEEL INC SKYLINE STEEL INC | 790298 | C-51 — Structural Steel | Jan 31, 2027 |
| Bloomington, CA | ARROWHEAD STEEL | 270209 | C-51 — Structural Steel | May 31, 2027 |
| Chatsworth, CA | ARTIST UNIVERSAL STEEL INC | 1063601 | C-51 — Structural Steel | Aug 31, 2028 |
| Spring Valley, CA | ASBURY STEEL INC | 999599 | C-51 — Structural Steel | Dec 31, 2026 |
| Los Angeles, CA | ATC WELDING & FABRICATING | 1093224 | C-51 — Structural Steel | Jun 30, 2028 |
| Atwater, CA | ATWATER METAL FABRICATION INC | 1103811 | C-51 — Structural Steel | Apr 30, 2027 |
| Turlock, CA | AVALOS ENTERPRISES INC | 1133765 | C-51 — Structural Steel | Feb 28, 2027 |
| El Cajon, CA | AZTLAN STEEL FABRICATION INC | 1131539 | C-51 — Structural Steel | Jan 31, 2027 |
| Benicia, CA | B & R DESIGN LLC | 1101062 | C-51 — Structural Steel | Feb 28, 2027 |
| Ventura, CA | B & R FABRICATION DE FISHER INC | 839510 | C-51 — Structural Steel | May 31, 2028 |
| Alhambra, CA | B A STEEL & IRON WORKS INC | 998832 | C-51 — Structural Steel | Nov 30, 2026 |
| Gardena, CA | B B B STRUCTURAL STEEL INC | 1076097 | C-51 — Structural Steel | May 31, 2027 |
| San Francisco, CA | B E I STEEL INC | 844874 | C-51 — Structural Steel | Aug 31, 2028 |
| Harbor City, CA | B F STEEL INC | 742057 | C-51 — Structural Steel | Oct 31, 2027 |
| Chino, CA | B P IRON INC | 1062836 | C-51 — Structural Steel | Jan 31, 2028 |
| Inglewood, CA | B W F ERECTORS INC | 758410 | C-51 — Structural Steel | Oct 31, 2027 |
| Norco, CA | B W STRUCTURAL INC | 540362 | C-51 — Structural Steel | Aug 31, 2028 |
| Everett, WA | BAHNMILLER STEEL BAHNMILLER CONSTRUCTION INC | 1100415 | C-51 — Structural Steel | Jan 31, 2027 |
| Imperial Beach, CA | BAJA STEEL ERECTORS INC | 1108069 | C-51 — Structural Steel | Aug 31, 2027 |
| Modesto, CA | BAMBACIGNO STEEL COMPANY | 244141 | C-51 — Structural Steel | Jan 31, 2027 |
| Elkhart, TX | BANDANA INSTALLATION | 815460 | C-51 — Structural Steel | Dec 31, 2026 |
| Santee, CA | BARE STEEL INC | 1013733 | C-51 — Structural Steel | May 31, 2028 |
| San Francisco, CA | BARRY KEVIN J IRONWORKS | 742590 | C-51 — Structural Steel | Jan 31, 2028 |
| Santa Clara, CA | BART MANUFACTURING INC | 1023018 | C-51 — Structural Steel | Jan 31, 2027 |
| Phoenix, AZ | BASIC METALS INDUSTRIES LLC | 984635 | C-51 — Structural Steel | Jun 30, 2027 |
| Gilroy, CA | BAY AREA STEEL SERVICES NUNEZ PRECISION WELDING INC | 958266 | C-51 — Structural Steel | Mar 31, 2027 |
| Antioch, CA | BAY STRUCTURAL IRON WORKS INC | 1125170 | C-51 — Structural Steel | Aug 31, 2028 |
| San Bruno, CA | BAYVIEW IRON WORKS INC | 671227 | C-51 — Structural Steel | May 31, 2027 |
| Pescadero, CA | BEAR FLAG IRONWORKS LLC | 1119272 | C-51 — Structural Steel | Jul 31, 2028 |
| Riverside, CA | BELL BROS STEEL INC | 794046 | C-51 — Structural Steel | Nov 30, 2026 |
| Beaumont, CA | BELL ERECTORS INC | 1106880 | C-51 — Structural Steel | Jul 31, 2027 |
| Compton, CA | BEN ASH IRON WORKS INC | 1014171 | C-51 — Structural Steel | May 31, 2028 |
| Hollister, CA | BENCHMARK STEEL INC | 801334 | C-51 — Structural Steel | Mar 31, 2027 |
| Mc Clellan, CA | BERGER STEEL CORPORATION | 975879 | C-51 — Structural Steel | Aug 31, 2028 |
| Bakersfield, CA | BERN'S STEEL FABRICATION BERN'S FABRICATION WELDING LLC | 1139286 | C-51 — Structural Steel | Jun 30, 2027 |
| Mentone, CA | BEYOND STEEL FABRICATION LLC | 1070638 | C-51 — Structural Steel | Nov 30, 2026 |
| West Sacramento, CA | BIG VALLEY METALS | 826708 | C-51 — Structural Steel | Oct 31, 2027 |
| Santa Paula, CA | BILL AND C J STEEL WORK BILL AND C J WELDING INC | 832180 | C-51 — Structural Steel | Nov 30, 2027 |
| Healdsburg, CA | BLACK IRON INC | 873103 | C-51 — Structural Steel | Mar 31, 2028 |
| Sacramento, CA | BLINE STEEL INC | 1116040 | C-51 — Structural Steel | Feb 29, 2028 |
| Torrance, CA | BLUE STATE STEEL INC | 920145 | C-51 — Structural Steel | Jul 31, 2028 |
| Sunland, CA | BOLD STEEL INC | 1030520 | C-51 — Structural Steel | Aug 31, 2027 |
| Anaheim, CA | BRIGHTBILL WELDING INC | 751750 | C-51 — Structural Steel | May 31, 2028 |
| San Francisco, CA | BROTHER STEEL INC | 1138558 | C-51 — Structural Steel | Jun 30, 2027 |
| Reseda, CA | BROTHER'S STEEL INC | 1069290 | C-51 — Structural Steel | Sep 30, 2028 |
| Acampo, CA | BSK STEEL LLC | 1140646 | C-51 — Structural Steel | Jul 31, 2027 |
| Sacramento, CA | BTI IRON WORKS | 1161329 | C-51 — Structural Steel | Sep 30, 2028 |
| Colton, OR | BY DESIGN STEEL SERVICES INC | 1030444 | C-51 — Structural Steel | Aug 31, 2027 |
| Evansville, IN | C & K STRUCTURAL STEEL C & K UNITED SHEET METAL AND MECHANICAL INC | 1037423 | C-51 — Structural Steel | Mar 31, 2028 |
| Fresno, CA | C & S STEEL INC | 1087023 | C-51 — Structural Steel | Feb 29, 2028 |
| Manhattan Beach, CA | C A WELD & FAB INC | 819398 | C-51 — Structural Steel | Apr 30, 2027 |
| Lakewood, WA | C S D STEEL CORONA STUD & DECK LLC | 983057 | C-51 — Structural Steel | Apr 30, 2027 |
| Stockton, CA | C W I STEEL INC | 926553 | C-51 — Structural Steel | Dec 31, 2027 |
| Hayward, CA | C&L STEEL INC | 1076512 | C-51 — Structural Steel | Jun 30, 2027 |
| Newcastle, CA | C&T WELDING INC | 855966 | C-51 — Structural Steel | Mar 31, 2027 |
| Antioch, CA | CAL DECKING AND STEEL | 1123331 | C-51 — Structural Steel | Jul 31, 2028 |
| Temecula, CA | CAL IRONWORKS INC | 978921 | C-51 — Structural Steel | Nov 30, 2026 |
| Sanger, CA | CAL-FAB STEEL INC | 1073907 | C-51 — Structural Steel | Jun 30, 2028 |
| Phoenix, AZ | CALIBER METAL BUILDINGS LLC | 1068233 | C-51 — Structural Steel | Aug 31, 2028 |
| Benicia, CA | CALIFORNIA ERECTORS INC | 849324 | C-51 — Structural Steel | Nov 30, 2026 |
| Canyon Lake, CA | CALIFORNIA ON-SITE WELDING CUTSINGER ENGINEERING INC | 999417 | C-51 — Structural Steel | Dec 31, 2026 |
| Modesto, CA | CALIFORNIA STEEL FABRICATORS INC | 982317 | C-51 — Structural Steel | Mar 31, 2027 |
| Norwalk, CA | CANO STEEL INC | 1112189 | C-51 — Structural Steel | Nov 30, 2027 |
| Perris, CA | CANYON STEEL FABRICATORS INC | 911436 | C-51 — Structural Steel | Feb 29, 2028 |
| Rocklin, CA | CAPITAL CITY IRONWORKS INC | 922290 | C-51 — Structural Steel | Oct 31, 2027 |
| Meridian, ID | CAPITOL STEEL CONSTRUCTORS INC | 852046 | C-51 — Structural Steel | Jan 31, 2027 |
| Monrovia, CA | CAPITOL STEEL FABRICATORS INC | 457764 | C-51 — Structural Steel | Jun 30, 2028 |
| Carmel Valley, CA | CARMEL VALLEY IRONWORKS INC | 745396 | C-51 — Structural Steel | Feb 28, 2027 |
| Riverside, CA | CARRERA STEEL INC | 1004550 | C-51 — Structural Steel | Jun 30, 2028 |
| National City, CA | CARROLL METAL WORKS INC | 493672 | C-51 — Structural Steel | Apr 30, 2028 |
| Spokane Valley, WA | CATEGORY 5 STEEL INC | 1015566 | C-51 — Structural Steel | Jun 30, 2028 |
| Madera, CA | CEN CAL STEEL ERECTORS INC | 1070742 | C-51 — Structural Steel | Nov 30, 2026 |
| Santa Ana, CA | CERO-TON ERECTOR | 1141660 | C-51 — Structural Steel | Aug 31, 2027 |
| Anaheim, CA | CERTIFIED STEEL FABRICATORS INC | 1073091 | C-51 — Structural Steel | Jan 31, 2027 |
| Escondido, CA | CHAMPION METAL WORKS INC | 1123462 | C-51 — Structural Steel | Jul 31, 2028 |
| Ventura, CA | CHANNEL ISLANDS STRUCTURES | 916544 | C-51 — Structural Steel | Jun 30, 2028 |
| Oxnard, CA | CHANNEL WELDING & FABRICATION INC | 863523 | C-51 — Structural Steel | Aug 31, 2027 |
| Jurupa Valley, CA | CHIFONGAS STEEL CO CHIFONGAS CONSTRUCTION | 1113059 | C-51 — Structural Steel | Nov 30, 2027 |
| Alpharetta, GA | CIVES CORPORATION | 760771 | C-51 — Structural Steel | Mar 31, 2027 |
| Sacramento, CA | CMP-FAB INC | 1151922 | C-51 — Structural Steel | Mar 31, 2028 |
| San Clemente, CA | COAST STEEL & FABRICATION LLC | 1138723 | C-51 — Structural Steel | Jun 30, 2027 |
| Rosamond, CA | COAST STEEL INC | 1111283 | C-51 — Structural Steel | Oct 31, 2027 |
| Carmel, CA | COASTAL FABRICATION COMPANY INC | 1012636 | C-51 — Structural Steel | Apr 30, 2028 |
| Camarillo, CA | COASTAL WELDING INNOVATIONS | 1020719 | C-51 — Structural Steel | Oct 31, 2026 |
| Los Angeles, CA | COASTLINE STEEL | 749215 | C-51 — Structural Steel | Jul 31, 2027 |
| Alpine, CA | COASTLINE STEEL COASTLINE STEEL AND CONSTRUCTION INC | 931601 | C-51 — Structural Steel | Apr 30, 2027 |
| Vancouver, WA | COLUMBIA STEEL SERVICES INC | 1004493 | C-51 — Structural Steel | Jun 30, 2027 |
| Hollister, CA | COMPLETE STEEL AND STRUCTURE LLC | 1150615 | C-51 — Structural Steel | Feb 29, 2028 |
| Pittsburg, CA | CONCORD IRON WORKS INC | 425897 | C-51 — Structural Steel | Aug 31, 2028 |
| Gardena, CA | CONNECT STEEL COMPANY | 1151057 | C-51 — Structural Steel | Feb 29, 2028 |
| Pleasanton, CA | CONXTECH INC | 855525 | C-51 — Structural Steel | Mar 31, 2027 |
| Shelbyville, TN | COOPER STEEL COOPER'S STEEL FABRICATORS INC | 811990 | C-51 — Structural Steel | Aug 31, 2028 |
| Lakewood, WA | CORONA STEEL INC | 1089502 | C-51 — Structural Steel | Apr 30, 2028 |
| Sun Valley, CA | CRAFTSMAN IRON WORKS INC | 913208 | C-51 — Structural Steel | Apr 30, 2028 |
| Laguna Niguel, CA | CREATIVE STEEL TEK CREATIVE TEKNOLOGIES | 1069025 | C-51 — Structural Steel | Sep 30, 2028 |
| Corona, CA | CROWN STEEL INC | 963155 | C-51 — Structural Steel | Jul 31, 2027 |
| Orange, CA | CUNDIFF STEEL FABRICATING & ERECTING | 251220 | C-51 — Structural Steel | Dec 31, 2026 |
| Aliso Viejo, CA | CUSTOM IRON CORPORATION | 925944 | C-51 — Structural Steel | Dec 31, 2026 |
| Pacoima, CA | D & M STEEL INC | 619008 | C-51 — Structural Steel | May 31, 2027 |
| Friday Harbor, WA | D & M STEEL SERVICES INC | 1119766 | C-51 — Structural Steel | Apr 30, 2028 |
| Orinda, CA | D & T STRUCTURAL STEEL INC | 767438 | C-51 — Structural Steel | Jul 31, 2027 |
| Burbank, CA | D M IRONWORKS GENISA IRON INC | 968764 | C-51 — Structural Steel | Dec 31, 2027 |
| Valencia, CA | DANMAR STEEL INC | 493819 | C-51 — Structural Steel | Jun 30, 2028 |
| Redding, CA | DC STEEL ERECTORS INC | 914643 | C-51 — Structural Steel | Oct 31, 2028 |
| Harrisonburg, VA | DEAN BUILDERS DEAN STEEL ERECTION COMPANY INC | 801170 | C-51 — Structural Steel | Nov 30, 2027 |
| Stockton, CA | DECK WEST INC | 804155 | C-51 — Structural Steel | Feb 29, 2028 |
| Escondido, CA | DEL MAR STEEL INC | 1061930 | C-51 — Structural Steel | Jan 31, 2028 |
| Rialto, CA | DEL REAL J S STRUCTURAL STEEL | 1076301 | C-51 — Structural Steel | May 31, 2027 |
| Daingerfield, TX | DELTA FABRICATION AND MACHINE ERECTORS DELTA FABRICATION AND MACHINE INC | 1146149 | C-51 — Structural Steel | Nov 30, 2027 |
| Santa Barbara, CA | DELTA WELDING AND FABRICATION INC | 761090 | C-51 — Structural Steel | Apr 30, 2027 |
| Huntington Beach, CA | DEMEL METAL FABRICATION DEMEL FABRICATION LLC | 1115510 | C-51 — Structural Steel | Jan 31, 2028 |
| Henderson, CO | DERR AND GRUENEWALD DERR AND GRUENEWALD CONSTRUCTION LLC | 1043748 | C-51 — Structural Steel | Aug 31, 2028 |
| Morgan Hill, CA | DETAIL EQUIPMENT SYSTEMS LLC | 1101609 | C-51 — Structural Steel | Feb 28, 2027 |
| Menifee, CA | DIAMOND STEEL CONSTRUCTION INC | 960425 | C-51 — Structural Steel | Apr 30, 2027 |
| Corona, CA | DIVERSIFIED METALWORKS RIKA CORPORATION | 385215 | C-51 — Structural Steel | Nov 30, 2027 |
| Richmond, CA | DMMETALS INC | 1130385 | C-51 — Structural Steel | Dec 31, 2026 |
| Sausalito, CA | DOYLE IRON WORKS INC | 1094434 | C-51 — Structural Steel | Jul 31, 2028 |
| Glendale, CA | DRAGON STEEL INC | 921328 | C-51 — Structural Steel | Aug 31, 2028 |
| Tahoe City, CA | DRAKE STEEL INC | 1099743 | C-51 — Structural Steel | Jul 31, 2028 |
| Campbell, CA | DRAKE WELDING INC | 578727 | C-51 — Structural Steel | Oct 31, 2027 |
| Jackson, TN | DSE ERECTORS INC | 812944 | C-51 — Structural Steel | Sep 30, 2028 |
| Hayward, CA | DUAL STEEL INC | 1094171 | C-51 — Structural Steel | Jul 31, 2028 |
| Riverside, CA | DUNCAN BROS INC | 450201 | C-51 — Structural Steel | Dec 31, 2027 |
| North Highlands, CA | DYNAMIC IRON WORKS INC | 1000130 | C-51 — Structural Steel | Jan 31, 2027 |
| Santa Rosa, CA | DYNAMIS IRON STRUCTURAL STEEL DYNAMIS IRON INC | 1123992 | C-51 — Structural Steel | Jul 31, 2028 |
| Whittier, CA | E R STRUCTURAL STEEL INC | 1038704 | C-51 — Structural Steel | Apr 30, 2028 |
| Sacramento, CA | EAGLE WELDING SERVICES INC | 956935 | C-51 — Structural Steel | Jan 31, 2027 |
| Hayward, CA | ECM STEEL INC | 1033186 | C-51 — Structural Steel | Aug 31, 2028 |
| Arroyo Grande, CA | EDUB & SONS STRUCTURAL STEEL INC | 930568 | C-51 — Structural Steel | Nov 30, 2026 |
| Oakland, CA | EMERALD STEEL INC | 876647 | C-51 — Structural Steel | Apr 30, 2028 |
| Covina, CA | EMPIRE STEEL ERECTORS | 1072887 | C-51 — Structural Steel | Jan 31, 2027 |
| Phoenix, AZ | ENCORE STEEL INC | 934549 | C-51 — Structural Steel | Jun 30, 2027 |
| Ennis, TX | ENNIS STEEL INDUSTRIES INC | 1123227 | C-51 — Structural Steel | Jul 31, 2028 |
| Murrieta, CA | EQUIP PRO | 1083473 | C-51 — Structural Steel | Nov 30, 2027 |
| Sanford, NC | EVAN CORPORATION | 806439 | C-51 — Structural Steel | Apr 30, 2028 |
| Fremont, CA | EVEREST STEEL FABRICATION INC | 917548 | C-51 — Structural Steel | Jan 31, 2027 |
| San Jose, CA | F & F STEEL & STAIRWAY INC | 740906 | C-51 — Structural Steel | Jul 31, 2028 |
| Vallejo, CA | F & M STEEL FABRICATORS INC | 1056278 | C-51 — Structural Steel | Jul 31, 2027 |
| Healdsburg, CA | F & M STEEL INC | 767446 | C-51 — Structural Steel | Aug 31, 2027 |
| Oakdale, CA | FALCON IRON INC | 865196 | C-51 — Structural Steel | Jan 31, 2027 |
| Long Beach, CA | FE STEEL COMPANY | 1078897 | C-51 — Structural Steel | Jul 31, 2027 |
| Los Angeles, CA | FERAL STUDIO LLC | 1136365 | C-51 — Structural Steel | Apr 30, 2027 |
| San Francisco, CA | FERDEL STRUCTURAL STEEL FERDEL BUILDER CONSTRUCTION INC | 1065478 | C-51 — Structural Steel | Apr 30, 2028 |
| Fontana, CA | FIGUEROA IRON WORKS INC | 819323 | C-51 — Structural Steel | Jun 30, 2027 |
| San Jose, CA | FINE STEEL PRODUCTS INC | 848465 | C-51 — Structural Steel | Oct 31, 2026 |
| Signal Hill, CA | FIRESTONE FABRICATORS SOELZER INC | 694903 | C-51 — Structural Steel | Aug 31, 2028 |
| Oceanside, CA | FIREWIRE WELDING AND FABRICATION INC | 961216 | C-51 — Structural Steel | Apr 30, 2027 |
| Visalia, CA | FISHER METAL PRODUCTS INC | 909182 | C-51 — Structural Steel | Jan 31, 2028 |
| Tulsa, OK | FLEMING CONSTRUCTION GROUP LLC THE | 1076148 | C-51 — Structural Steel | May 31, 2027 |
| Hidden Valley Lake, CA | FLYING HAMMER STRUCTURAL STEEL FABRICATION | 1021632 | C-51 — Structural Steel | Dec 31, 2026 |
| Wallis, TX | FORGE GLOBAL INDUSTRIES LLC | 1027111 | C-51 — Structural Steel | Jan 31, 2027 |
| Boise, ID | FORGE STEEL FORGE BUILDING COMPANY LLC | 1065420 | C-51 — Structural Steel | Apr 30, 2028 |
| Simi Valley, CA | FORSTER FABRICATION | 1015494 | C-51 — Structural Steel | Jan 31, 2027 |
| Marina, CA | FOX WELDING METAL FABRICATORS INC | 894035 | C-51 — Structural Steel | Apr 30, 2027 |
| Sanger, CA | FRESNO FAB-TECH INC | 534626 | C-51 — Structural Steel | Jul 31, 2028 |
| San Jose, CA | FUSION STEEL DESIGN | 1038381 | C-51 — Structural Steel | Apr 30, 2028 |
| Phelan, CA | G & C IRONWORKS G & C FABRICATION | 1127887 | C-51 — Structural Steel | Oct 31, 2026 |
| Montclair, CA | G B METAL FABRICATORS INC | 1035439 | C-51 — Structural Steel | Jan 31, 2028 |
| Richmond, CA | G K WELDING INC | 770562 | C-51 — Structural Steel | Oct 31, 2027 |
| San Diego, CA | G STEEL INC | 1142164 | C-51 — Structural Steel | Aug 31, 2027 |
| Pomona, CA | G T STEEL INC | 1112303 | C-51 — Structural Steel | Nov 30, 2027 |
| Oldsmar, FL | GARDNER-WATSON DECKING INC | 1131590 | C-51 — Structural Steel | Jan 31, 2027 |
| Vacaville, CA | GARTON JIM STEEL CONSTRUCTION INC | 902335 | C-51 — Structural Steel | May 31, 2027 |
| San Diego, CA | GAZ STEEL FABRICATION INC | 1081985 | C-51 — Structural Steel | Oct 31, 2027 |
| Stockton, CA | GEIGER MANUFACTURING INC | 586688 | C-51 — Structural Steel | Jan 31, 2028 |
| Cottonwood, CA | GENERATION INDUSTRIAL STEEL INC | 1089571 | C-51 — Structural Steel | Apr 30, 2028 |
| Escondido, CA | GEORGE AND KROGH WELDING INC | 687968 | C-51 — Structural Steel | Apr 30, 2028 |
| Orland, CA | GILMORE STEEL GILMORE J CONSTRUCTION INC | 710436 | C-51 — Structural Steel | Jun 30, 2028 |
| San Francisco, CA | GLEAVES CONTRACTORS INC | 1145854 | C-51 — Structural Steel | Jul 31, 2028 |
| Spring Valley, CA | GLOBAL STEEL ERECTORS INC | 827929 | C-51 — Structural Steel | Dec 31, 2027 |
| East Palo Alto, CA | GLOBAL STEEL FABRICATORS, INC | 1030689 | C-51 — Structural Steel | Sep 30, 2027 |
| Hollister, CA | GODSPEED FABRICATION AND STEEL INC | 1144703 | C-51 — Structural Steel | Oct 31, 2027 |
| Camarillo, CA | GOLD COAST ERECTORS | 698200 | C-51 — Structural Steel | Feb 29, 2028 |
| Bakersfield, CA | GOLDEN STATE STEEL ERECTORS INC | 1011857 | C-51 — Structural Steel | Mar 31, 2028 |
| South El Monte, CA | GOLDEN STEEL | 1096398 | C-51 — Structural Steel | Aug 31, 2028 |
| Oakland, CA | GOMEZ IRON FABRICATION INC | 1001484 | C-51 — Structural Steel | Feb 28, 2027 |
| Bakersfield, CA | GOMEZ IRONWORK INC | 1080348 | C-51 — Structural Steel | Jun 30, 2028 |
| Littlerock, CA | GONZALEZ IRON WORKS LLC | 1154477 | C-51 — Structural Steel | May 31, 2028 |
| Huntington Beach, CA | GREENFLOW STEEL FRAMERS GREENFLOW CONSTRUCTION INC | 953051 | C-51 — Structural Steel | Jul 31, 2027 |
| Nevada City, CA | GRINDSTONE STEEL INC | 1023518 | C-51 — Structural Steel | Feb 28, 2027 |
| Mission Hills, CA | GROUND ZERO WELDING GROUND ZERO IRON WORKS INCORPORATED | 1126611 | C-51 — Structural Steel | Sep 30, 2028 |
| Murrieta, CA | GUSSIE STEEL INC | 1015733 | C-51 — Structural Steel | Jul 31, 2028 |
| Azusa, CA | H R STEEL INC | 757373 | C-51 — Structural Steel | Dec 31, 2026 |
| Torrance, CA | HAMILTON IRON WORKS INC | 859878 | C-51 — Structural Steel | Jun 30, 2027 |
| Gilroy, CA | HANSON IRON INC | 1061747 | C-51 — Structural Steel | Dec 31, 2027 |
| Lakewood, CA | HARBOR IRON & CO | 1160434 | C-51 — Structural Steel | Sep 30, 2028 |
| Gardena, CA | HARCO FABRICATION INC | 887841 | C-51 — Structural Steel | Dec 31, 2026 |
| Redding, CA | HARRIS METAL WORKS INC | 791631 | C-51 — Structural Steel | Jul 31, 2028 |
| Fillmore, CA | HAVLAND LLC | 1056112 | C-51 — Structural Steel | Jul 31, 2027 |
| North Hollywood, CA | HB METAL | 1098889 | C-51 — Structural Steel | Nov 30, 2026 |
| Ponca City, OK | HEARTLAND TANK LLC | 1096574 | C-51 — Structural Steel | Dec 31, 2027 |
| American Canyon, CA | HEAVY METAL IRON INC | 1089821 | C-51 — Structural Steel | Apr 30, 2028 |
| Stanton, CA | HEAVY WEIGHT STEEL INC | 1064111 | C-51 — Structural Steel | Mar 31, 2028 |
| Union City, CA | HECO PACIFIC MANUFACTURING INC | 247595 | C-51 — Structural Steel | Nov 30, 2026 |
| Lodi, CA | HENKE INDUSTRIAL SERVICES | 1078227 | C-51 — Structural Steel | Feb 28, 2027 |
| Harbor City, CA | HERNANDEZ STEEL INC | 1117807 | C-51 — Structural Steel | Mar 31, 2028 |
| Las Vegas, NV | HERSHBERGER BROS WELDING INC | 791326 | C-51 — Structural Steel | Feb 28, 2027 |
| Norwalk, CA | HIGH CLASS WELDING INC | 977453 | C-51 — Structural Steel | Oct 31, 2028 |
| Siloam Springs, AR | HILBURN STEEL HILBURN BUILDERS INC | 1087353 | C-51 — Structural Steel | Feb 29, 2028 |
| Raymond, CA | HOWELL COMMUNICATIONS INC | 720578 | C-51 — Structural Steel | Jul 31, 2028 |
| San Bernardino, CA | HQ WELDING SERVICES | 1081441 | C-51 — Structural Steel | Sep 30, 2027 |
| Torrance, CA | HTIW CONSTRUCTION INC | 1111752 | C-51 — Structural Steel | Oct 31, 2027 |
| Weatherford, TX | HYDRONA STEEL WATER TANKS HYDRONA LLC | 1089716 | C-51 — Structural Steel | Apr 30, 2028 |
| Los Angeles, CA | HYE WELDING LLC | 1138249 | C-51 — Structural Steel | Jun 30, 2027 |
| San Bernardino, CA | IE STRUCTURAL STEEL INLAND EMPIRE FABRICATORS | 1154166 | C-51 — Structural Steel | Apr 30, 2028 |
| San Diego, CA | IMPERIAL STEEL INC | 1135002 | C-51 — Structural Steel | Mar 31, 2027 |
| Sonora, CA | INDUSTRIAL STEEL CONSTRUCTION INC | 926790 | C-51 — Structural Steel | Aug 31, 2028 |
| Chino, CA | INFINITY IRON INC | 849285 | C-51 — Structural Steel | Nov 30, 2026 |
| La Habra, CA | INFINITY METALS INC | 722577 | C-51 — Structural Steel | Oct 31, 2026 |
| Stanwood, WA | INLAND STEEL ERECTORS INC | 1151015 | C-51 — Structural Steel | Feb 29, 2028 |
| Rancho Cucamonga, CA | INLAND STEEL INC | 1112693 | C-51 — Structural Steel | Nov 30, 2027 |
| Spokane Valley, WA | INTERSTATE ERECTORS INC | 943502 | C-51 — Structural Steel | Feb 29, 2028 |
| Fontana, CA | IRON - MEX CORP | 903414 | C-51 — Structural Steel | Sep 30, 2027 |
| Santa Rosa, CA | IRON DOG FABRICATION INC | 726720 | C-51 — Structural Steel | Jul 31, 2027 |
| Pacoima, CA | IRON GUY INC THE | 1117866 | C-51 — Structural Steel | Mar 31, 2028 |
| Hanford, CA | IRON INDUSTRIES INC | 851744 | C-51 — Structural Steel | Dec 31, 2026 |
| Bakersfield, CA | IRON NIKKEL CONSTRUCTION INC | 877145 | C-51 — Structural Steel | Oct 31, 2026 |
| Colfax, CA | IRONSTONE CUSTOM DECKS DAKOTA BISON INC | 848259 | C-51 — Structural Steel | Oct 31, 2026 |
| Murray, UT | IVERSON STEEL & ERECTION INC | 623142 | C-51 — Structural Steel | Jul 31, 2027 |
| Lancaster, CA | J & J STEEL BROS INC | 1124766 | C-51 — Structural Steel | Aug 31, 2028 |
| Walnut, CA | J & L STRUCTURAL STEEL WELDING INC | 747271 | C-51 — Structural Steel | Mar 31, 2027 |
| Paso Robles, CA | J & M WELDING INC | 1046894 | C-51 — Structural Steel | Nov 30, 2026 |
| Oxnard, CA | J AND A WELDING SERVICES INC | 1088453 | C-51 — Structural Steel | Mar 31, 2028 |
| Santa Maria, CA | J AND D STEEL FABRICATION AND REPAIR J & D FABRICATING & REPAIR INC | 1143724 | C-51 — Structural Steel | Sep 30, 2027 |
| Loma Rica, CA | J G STEEL INC | 962458 | C-51 — Structural Steel | Jun 30, 2027 |
| Calimesa, CA | J K I STRUCTURAL STEEL INC | 1025807 | C-51 — Structural Steel | Apr 30, 2027 |
| Northridge, CA | J K STEEL INC | 864128 | C-51 — Structural Steel | Jul 31, 2027 |
| Moreno Valley, CA | J M G STEEL CORP | 1057141 | C-51 — Structural Steel | Aug 31, 2027 |
| Sun Valley, CA | J M I STEEL INC | 709127 | C-51 — Structural Steel | Apr 30, 2028 |
| Menifee, CA | J M L STEEL CONTRACTORS INC | 1081939 | C-51 — Structural Steel | Oct 31, 2027 |
| Lebec, CA | J N S IRONWORKS | 1068882 | C-51 — Structural Steel | Sep 30, 2028 |
| Hood, CA | J&G IRONWORKS LLC | 1137242 | C-51 — Structural Steel | May 31, 2027 |
| Hesperia, CA | JA STRUCTURAL STEEL INC | 1128544 | C-51 — Structural Steel | Oct 31, 2028 |
| Yucaipa, CA | JAYSCO INC | 679896 | C-51 — Structural Steel | Jul 31, 2027 |
| Auburn, CA | JD2 INCORPORATED | 674925 | C-51 — Structural Steel | Jul 31, 2027 |
| San Bernardino, CA | JERICO SPECIALTY METALS INC | 845688 | C-51 — Structural Steel | Aug 31, 2028 |
| Hayward, CA | JM WELDING SERVICE INC | 856533 | C-51 — Structural Steel | Nov 30, 2026 |
| Chino, CA | JOBSITE STUD WELDING INC | 839393 | C-51 — Structural Steel | Feb 29, 2028 |
| Truckee, CA | JOHNSON IRON INC | 673923 | C-51 — Structural Steel | Feb 28, 2027 |
| Concord, CA | JOLLY STEEL COMPANY INC | 828795 | C-51 — Structural Steel | Aug 31, 2028 |
| Ontario, CA | JOURNEYMAN IRON WORKS CORPORATION | 1065387 | C-51 — Structural Steel | Apr 30, 2028 |
| Norco, CA | JUAANE'S PORTABLE WELDING INC | 1047155 | C-51 — Structural Steel | Nov 30, 2026 |
| Richmond, CA | JULIAN TREE CARE INC | 1009796 | C-51 — Structural Steel | Dec 31, 2027 |
| Mead, WA | K D STEEL INC | 704849 | C-51 — Structural Steel | Apr 30, 2027 |
| Buena Park, CA | K METAL WORK & DESIGN INC | 1159361 | C-51 — Structural Steel | Aug 31, 2028 |
| Atwater, CA | K&M WELDING LLC | 711135 | C-51 — Structural Steel | Dec 31, 2027 |
| Hesperia, CA | KAT STEEL INC | 1129732 | C-51 — Structural Steel | Nov 30, 2026 |
| Bakersfield, CA | KERN COUNTY ERECTORS INC | 1078485 | C-51 — Structural Steel | Jul 31, 2027 |
| Bakersfield, CA | KERN ERECTORS INC | 752682 | C-51 — Structural Steel | Aug 31, 2028 |
| Glendale, CA | KHANIAN STEEL INC | 1101118 | C-51 — Structural Steel | Feb 28, 2027 |
| Los Angeles, CA | KNS STEEL INC | 969046 | C-51 — Structural Steel | Jan 31, 2028 |
| Chowchilla, CA | KOEHLER J STEEL BURKE DIVERSIFIED | 1085030 | C-51 — Structural Steel | Dec 31, 2027 |
| Fresno, CA | L M I ENTERPRISES INC | 964661 | C-51 — Structural Steel | Aug 31, 2027 |
| Loveland, CO | L P R GROUP L P R CONSTRUCTION CO LLC | 1049621 | C-51 — Structural Steel | Jan 31, 2027 |
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.