Licensed General Engineering (A) contractors in California

The California Contractors State License Board (CSLB) lists 15,378 California contractors classified A (General Engineering (A)). Each entry below links to a full dossier with license status, insurance, bond, and enforcement — as of June 27, 2026.

Showing 301–360 of 15,378 contractors

Addax Electric INC
El Cajon, CA · CSLB #295999 · as of June 27, 2026
Active · clear
Addis Construction CO
Sonora, CA · CSLB #482521 · as of June 27, 2026
Active · clear
Addison Construction CO
Cheyenne, CA · CSLB #519122 · as of June 27, 2026
Active · clear
David L Addison INC DBA Addison Equipment Rental
Fontana, CA · CSLB #431813 · as of June 27, 2026
Active · clear
Addison - Miller INC
Orange, CA · CSLB #1001142 · as of June 27, 2026
Active · clear
Adelphi Construction LLC
Overland Park, CA · CSLB #1052378 · as of June 27, 2026
Active · clear
Adept Construction Solutions INC
San Francisco, CA · CSLB #1011699 · as of June 27, 2026
Active · clear
Adg Development & Investments INC
Orinda, CA · CSLB #662234 · as of June 27, 2026
Active · clear
A D Improvements INC
Downey, CA · CSLB #704437 · as of June 27, 2026
Active · clear
Ami Adini Environmental Services INC
Los Angeles, CA · CSLB #1009513 · as of June 27, 2026
Active · clear
A D Melchner General Engineering
Hayward, CA · CSLB #1077314 · as of June 27, 2026
Active · clear
Adobe Construction Company
Penngrove, CA · CSLB #1104098 · as of June 27, 2026
Active · clear
Adobe General Contractors
San Diego, CA · CSLB #926831 · as of June 27, 2026
Active · clear
Adobe Soil & Structures Engineering Contractors INC
Oakland, CA · CSLB #687732 · as of June 27, 2026
Active · clear
Adrenaline Construction
Shingle Springs, CA · CSLB #954673 · as of June 27, 2026
Active · clear
A D S Corp
Huntsville, CA · CSLB #911453 · as of June 27, 2026
Active · clear
Adu Concepts
Tarzana, CA · CSLB #1018294 · as of June 27, 2026
Active · clear
Advance Concrete INC
Novato, CA · CSLB #987936 · as of June 27, 2026
Active · clear
Advanced Alternative Energy Solutions INC
Petaluma, CA · CSLB #1107943 · as of June 27, 2026
Active · clear
Advanced American Construction INC
Portland, CA · CSLB #885366 · as of June 27, 2026
Active · clear
Advanced Asphalt
Truckee, CA · CSLB #721719 · as of June 27, 2026
Active · clear
Advanced Attic Solutions
Chatsworth, CA · CSLB #1046819 · as of June 27, 2026
Active · clear
Advanced Builders And Contractors
Reseda, CA · CSLB #900281 · as of June 27, 2026
Active · clear
Advanced Building And Construction INC
San Diego, CA · CSLB #1034670 · as of June 27, 2026
Active · clear
Advanced Cable Technologies
Alpharetta, CA · CSLB #900587 · as of June 27, 2026
Active · clear
Advanced Chemical Transport LLC
San Jose, CA · CSLB #1132910 · as of June 27, 2026
Active · clear
Advanced Construction Experts
Brawley, CA · CSLB #907110 · as of June 27, 2026
Active · clear
Advanced Construction Tech LLC
Irvine, CA · CSLB #1091923 · as of June 27, 2026
Active · clear
Advanced Construction Technologies LLC
Irvine, CA · CSLB #797379 · as of June 27, 2026
Active · clear
Advanced Constructors Corp
Huntington Beach, CA · CSLB #643603 · as of June 27, 2026
Active · clear
Advanced Contracted Engineering
Valley Springs, CA · CSLB #823997 · as of June 27, 2026
Active · clear
Advanced Earthworks
Cloverdale, CA · CSLB #846195 · as of June 27, 2026
Active · clear
Advanced Engineering USA
Porterville, CA · CSLB #1132635 · as of June 27, 2026
Active · clear
Advanced Environmental Concepts INC
Bakersfield, CA · CSLB #720492 · as of June 27, 2026
Active · clear
Advancedgeo INC
Stockton, CA · CSLB #1063765 · as of June 27, 2026
Active · clear
Advanced Geosolutions INC
Lake Forest, CA · CSLB #852459 · as of June 27, 2026
Active · clear
Advanced Geotechniques INC
Rocklin, CA · CSLB #956847 · as of June 27, 2026
Active · clear
Advanced Grading, Paving And Underground Utilities INC
Hollister, CA · CSLB #1059588 · as of June 27, 2026
Active · clear
Advanced Ground Modification INC
Fresno, CA · CSLB #1092306 · as of June 27, 2026
Active · clear
Advanced Industrial Services INC
Los Alamitos, CA · CSLB #631053 · as of June 27, 2026
Active · clear
Advanced Land Design
Fresno, CA · CSLB #1009558 · as of June 27, 2026
Active · clear
Advanced Leak Detection Services INC
Sheridan, CA · CSLB #1086036 · as of June 27, 2026
Active · clear
Advanced Pipeline Services
Oakley, CA · CSLB #578789 · as of June 27, 2026
Active · clear
Advanced Septic Solutions
San Luis Obispo, CA · CSLB #1078516 · as of June 27, 2026
Active · clear
Advanced Septic Systems LLC
La Mesa, CA · CSLB #1152708 · as of June 27, 2026
Active · clear
Advanced Soil Technology And Engineering
Bakersfield, CA · CSLB #1121184 · as of June 27, 2026
Active · clear
Advanced Sprinkler And Drainage Repair
San Diego, CA · CSLB #539158 · as of June 27, 2026
Active · clear
Advanced Stormwater Protection INC
Santa Rosa, CA · CSLB #1042181 · as of June 27, 2026
Active · clear
Advanced Telecommunications Company
Plain City, CA · CSLB #803509 · as of June 27, 2026
Active · clear
Advanced Trenchless INC
Martinez, CA · CSLB #971074 · as of June 27, 2026
Active · clear
Advanced Underground Systems
Riverside, CA · CSLB #879314 · as of June 27, 2026
Active · clear
Advanced Utilities INC
Sacramento, CA · CSLB #973245 · as of June 27, 2026
Active · clear
Advanced Water Well Drilling & Pump Services
Danville, CA · CSLB #1022423 · as of June 27, 2026
Active · clear
Advance Engineering INC
Sylmar, CA · CSLB #1103360 · as of June 27, 2026
Active · clear
Advance One Development LLC
Charlotte, CA · CSLB #1113959 · as of June 27, 2026
Active · clear
Advance Teletek INC
Highland, CA · CSLB #684664 · as of June 27, 2026
Active · clear
Advantage Demolition And Grading INC
Temecula, CA · CSLB #754795 · as of June 27, 2026
Active · clear
Advantage Grading & Engineering INC
San Diego, CA · CSLB #914889 · as of June 27, 2026
Active · clear
Advantage Paving & Excavating INC
Yreka, CA · CSLB #909239 · as of June 27, 2026
Active · clear
Advantage Technical Services INC
San Luis Obispo, CA · CSLB #961111 · as of June 27, 2026
Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of June 27, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.