Licensed General Engineering (A) contractors in California

The California Contractors State License Board (CSLB) lists 15,129 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 6, 2026.

Showing 301–360 of 15,129 contractors

Adaptive Stainless INC
Springfield, CA · CSLB #772628 · as of October 6, 2026
Active · clear
Adb Construction Group
Santa Ana, CA · CSLB #987122 · as of October 6, 2026
Active · clear
Adb Enterprise
Long Beach, CA · CSLB #1080942 · as of October 6, 2026
Active · clear
A & D Builders
San Jose, CA · CSLB #884861 · as of October 6, 2026
Active · clear
Add A Garage INC
San Francisco, CA · CSLB #660611 · as of October 6, 2026
Active · clear
Addax Electric INC
El Cajon, CA · CSLB #295999 · as of October 6, 2026
Active · clear
Addis Construction CO
Sonora, CA · CSLB #482521 · as of October 6, 2026
Active · clear
Addison Construction CO
Cheyenne, CA · CSLB #519122 · as of October 6, 2026
Active · clear
David L Addison INC DBA Addison Equipment Rental
Fontana, CA · CSLB #431813 · as of October 6, 2026
Active · clear
Addison - Miller INC
Orange, CA · CSLB #1001142 · as of October 6, 2026
Active · clear
Adelphi Construction LLC
Overland Park, CA · CSLB #1052378 · as of October 6, 2026
Active · clear
Adept Construction Solutions INC
San Francisco, CA · CSLB #1011699 · as of October 6, 2026
Active · clear
Adg Development & Investments INC
Orinda, CA · CSLB #662234 · as of October 6, 2026
Active · clear
A D I Engineering
Murrieta, CA · CSLB #1022275 · as of October 6, 2026
Active · clear
A D Improvements INC
Downey, CA · CSLB #704437 · as of October 6, 2026
Active · clear
Ami Adini Environmental Services INC
Los Angeles, CA · CSLB #1009513 · as of October 6, 2026
Active · clear
Adl Engineering LLC
Salinas, CA · CSLB #1142576 · as of October 6, 2026
Active · clear
A D Melchner General Engineering
Hayward, CA · CSLB #1077314 · as of October 6, 2026
Active · clear
Adobe Construction Company
Penngrove, CA · CSLB #1104098 · as of October 6, 2026
Active · clear
Adobe General Contractors
San Diego, CA · CSLB #926831 · as of October 6, 2026
Active · clear
Adobe Soil & Structures Engineering Contractors INC
Oakland, CA · CSLB #687732 · as of October 6, 2026
Active · clear
Adrenaline Construction
Shingle Springs, CA · CSLB #954673 · as of October 6, 2026
Active · clear
A D S Corp
Huntsville, CA · CSLB #911453 · as of October 6, 2026
Active · clear
Adu Concepts
Tarzana, CA · CSLB #1018294 · as of October 6, 2026
Active · clear
Advance Concrete INC
Novato, CA · CSLB #987936 · as of October 6, 2026
Active · clear
Advanced Alternative Energy Solutions INC
Petaluma, CA · CSLB #1107943 · as of October 6, 2026
Active · clear
Advanced American Construction INC
Portland, CA · CSLB #885366 · as of October 6, 2026
Active · clear
Advanced Asphalt
Truckee, CA · CSLB #721719 · as of October 6, 2026
Active · clear
Advanced Attic Solutions
Chatsworth, CA · CSLB #1046819 · as of October 6, 2026
Active · clear
Advanced Builders And Contractors
Reseda, CA · CSLB #900281 · as of October 6, 2026
Active · clear
Advanced Building And Construction INC
San Diego, CA · CSLB #1034670 · as of October 6, 2026
Active · clear
Advanced Cable Technologies
Alpharetta, CA · CSLB #900587 · as of October 6, 2026
Active · clear
Advanced Chemical Transport LLC
San Jose, CA · CSLB #1132910 · as of October 6, 2026
Active · clear
Advanced Cleanup Technologies INC
Lomita, CA · CSLB #668636 · as of October 6, 2026
Active · clear
Advanced Construction Experts
Brawley, CA · CSLB #907110 · as of October 6, 2026
Active · clear
Advanced Construction Tech LLC
Irvine, CA · CSLB #1091923 · as of October 6, 2026
Active · clear
Advanced Construction Technologies LLC
Irvine, CA · CSLB #797379 · as of October 6, 2026
Active · clear
Advanced Constructors Corp
Huntington Beach, CA · CSLB #643603 · as of October 6, 2026
Active · clear
Advanced Contracted Engineering
Valley Springs, CA · CSLB #823997 · as of October 6, 2026
Active · clear
Advanced Earthworks
Cloverdale, CA · CSLB #846195 · as of October 6, 2026
Active · clear
Advanced Engineering USA
Porterville, CA · CSLB #1132635 · as of October 6, 2026
Active · clear
Advanced Environmental Concepts INC
Bakersfield, CA · CSLB #720492 · as of October 6, 2026
Active · clear
Advancedgeo INC
Stockton, CA · CSLB #1063765 · as of October 6, 2026
Active · clear
Advanced Geosolutions INC
Lake Forest, CA · CSLB #852459 · as of October 6, 2026
Active · clear
Advanced Geotechniques INC
Rocklin, CA · CSLB #956847 · as of October 6, 2026
Active · clear
Advanced Grading, Paving And Underground Utilities INC
Hollister, CA · CSLB #1059588 · as of October 6, 2026
Active · clear
Advanced Industrial Services INC
Los Alamitos, CA · CSLB #631053 · as of October 6, 2026
Active · clear
Advanced Land Design
Fresno, CA · CSLB #1009558 · as of October 6, 2026
Active · clear
Advanced Leak Detection Services INC
Sheridan, CA · CSLB #1086036 · as of October 6, 2026
Active · clear
Advanced Pipeline Services
Oakley, CA · CSLB #578789 · as of October 6, 2026
Active · clear
Advanced Septic Solutions
San Luis Obispo, CA · CSLB #1078516 · as of October 6, 2026
Active · clear
Advanced Septic Systems LLC
La Mesa, CA · CSLB #1152708 · as of October 6, 2026
Active · clear
Advanced Soil Technology And Engineering
Bakersfield, CA · CSLB #1121184 · as of October 6, 2026
Active · clear
Advanced Sprinkler And Drainage Repair
San Diego, CA · CSLB #539158 · as of October 6, 2026
Active · clear
Advanced Stormwater Protection INC
Santa Rosa, CA · CSLB #1042181 · as of October 6, 2026
Active · clear
Advanced Telecommunications Company
Plain City, CA · CSLB #803509 · as of October 6, 2026
Active · clear
Advanced Trenchless INC
Martinez, CA · CSLB #971074 · as of October 6, 2026
Active · clear
Advanced Underground Systems
Riverside, CA · CSLB #879314 · as of October 6, 2026
Active · clear
Advanced Utilities INC
Sacramento, CA · CSLB #973245 · as of October 6, 2026
Active · clear
Advanced Water Well Drilling & Pump Services
Danville, CA · CSLB #1022423 · as of October 6, 2026
Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of October 6, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.