Licensed Electrical (C-10) contractors in California

The California Contractors State License Board (CSLB) lists 20,715 California contractors classified C-10 (Electrical (C-10)). Each entry below links to a full dossier with license status, insurance, bond, and enforcement — as of October 18, 2026.

Showing 16,381–16,440 of 20,715 contractors

Sidco Electric
Los Angeles, CA · CSLB #502140 · as of October 18, 2026
Active · clear
Sidewinder Solar
Ridgecrest, CA · CSLB #1098325 · as of October 18, 2026
Active · clear
Sid's Electric INC
Northridge, CA · CSLB #959452 · as of October 18, 2026
Active · clear
Siebert Electric
Apple Valley, CA · CSLB #581955 · as of October 18, 2026
Active · clear
Sieco Electric
Downey, CA · CSLB #988132 · as of October 18, 2026
Active · clear
Siegel Electrical Service
Sherman Oaks, CA · CSLB #642314 · as of October 18, 2026
Active · clear
Siemens Industry INC
Buffalo Grove, CA · CSLB #758796 · as of October 18, 2026
Active · clear
Winston Siemens Electric
Encino, CA · CSLB #628719 · as of October 18, 2026
Active · clear
Siepker Electric INC
Canyon Lake, CA · CSLB #899603 · as of October 18, 2026
Active · clear
Sierra Central Electric INC
Le Grand, CA · CSLB #855390 · as of October 18, 2026
Active · clear
Sierra Coast Electric LLC
Chino, CA · CSLB #1092736 · as of October 18, 2026
Active · clear
Sierra Comm
Auburn, CA · CSLB #1090628 · as of October 18, 2026
Active · clear
Sierra Commercial Lighting INC
Sonora, CA · CSLB #1027041 · as of October 18, 2026
Active · clear
Sierra Electric
San Jose, CA · CSLB #878058 · as of October 18, 2026
Active · clear
Joe Wheeler DBA Sierra Electric
Jamestown, CA · CSLB #1005083 · as of October 18, 2026
Active · clear
Sierra Electric And Sound Systems
Ridgecrest, CA · CSLB #754603 · as of October 18, 2026
Active · clear
Sierra Electric Solutions INC
San Bernardino, CA · CSLB #1101591 · as of October 18, 2026
Active · clear
Sierra Energy & Electric INC
El Dorado Hills, CA · CSLB #944130 · as of October 18, 2026
Active · clear
Sierra Energy Savers
Shingle Springs, CA · CSLB #852492 · as of October 18, 2026
Active · clear
Sierra Nevada Electric INC
Auburn, CA · CSLB #869021 · as of October 18, 2026
Active · clear
Sierra Pacific Electrical Services INC
Sacramento, CA · CSLB #1044417 · as of October 18, 2026
Active · clear
Sierra Peaks Electric
South Lake Tahoe, CA · CSLB #1123058 · as of October 18, 2026
Active · clear
Sierra Precision Electric
Truckee, CA · CSLB #1141473 · as of October 18, 2026
Active · clear
Sierra Security & Fire
Pollock Pines, CA · CSLB #801506 · as of October 18, 2026
Active · clear
Sierra Valley Electric INC
South Lake Tahoe, CA · CSLB #391090 · as of October 18, 2026
Active · clear
Sierra West Electric
Lake Elsinore, CA · CSLB #588512 · as of October 18, 2026
Active · clear
Sierra West Electrical INC
Pismo Beach, CA · CSLB #592878 · as of October 18, 2026
Active · clear
Sierra West Electrical LLC
Auburn, CA · CSLB #1050570 · as of October 18, 2026
Active · clear
Sierra Wiring
Reno, CA · CSLB #771705 · as of October 18, 2026
Active · clear
Gary L Sifers
Modesto, CA · CSLB #590435 · as of October 18, 2026
Active · clear
Sigal Utility Services INC
Windsor, CA · CSLB #1053349 · as of October 18, 2026
Active · clear
Sigma C & S Electric LLC
Los Angeles, CA · CSLB #1085988 · as of October 18, 2026
Active · clear
Sigma Electrical Group
Rancho Cucamonga, CA · CSLB #1146031 · as of October 18, 2026
Active · clear
Sigma Electric INC
Woodland Hills, CA · CSLB #1058098 · as of October 18, 2026
Active · clear
Sigma Ihs INC
San Jose, CA · CSLB #1111782 · as of October 18, 2026
Active · clear
Signal Alarm CO INC
Monrovia, CA · CSLB #961668 · as of October 18, 2026
Active · clear
Signal Alarms & Electric CO
Los Angeles, CA · CSLB #538175 · as of October 18, 2026
Active · clear
Signal System Solutions LLC
Kingwood, CA · CSLB #1109972 · as of October 18, 2026
Active · clear
Signature Life-safety Services INC
Clovis, CA · CSLB #933910 · as of October 18, 2026
Active · clear
Signawest Systems INC
Newark, CA · CSLB #646074 · as of October 18, 2026
Active · clear
Sign Of Light INC
Loomis, CA · CSLB #906191 · as of October 18, 2026
Active · clear
Sign Solutions
Yuba City, CA · CSLB #916050 · as of October 18, 2026
Active · clear
Sig Solar, S.i.g.
Oakdale, CA · CSLB #997639 · as of October 18, 2026
Active · clear
Silent Guard Building Safety Solutions INC
Rolling Hills Estates, CA · CSLB #983617 · as of October 18, 2026
Active · clear
Silent J Electric
Sunland, CA · CSLB #1154339 · as of October 18, 2026
Active · clear
Silicon Valley Electric
Gilroy, CA · CSLB #1120041 · as of October 18, 2026
Active · clear
Silicon Valley Electricians LLC
San Jose, CA · CSLB #1092657 · as of October 18, 2026
Active · clear
Agustin Vasquez Silva
Pacoima, CA · CSLB #618937 · as of October 18, 2026
Active · clear
Alejandro Silva
Coachella, CA · CSLB #989133 · as of October 18, 2026
Active · clear
Silva Electric
Visalia, CA · CSLB #514479 · as of October 18, 2026
Active · clear
Silva Electric INC
Los Angeles, CA · CSLB #469587 · as of October 18, 2026
Active · clear
Eugene Manuel Silva
Corona, CA · CSLB #647091 · as of October 18, 2026
Active · clear
M Silva Electric INC
Windsor, CA · CSLB #778567 · as of October 18, 2026
Active · clear
Silva's Electric
Wilton, CA · CSLB #1155369 · as of October 18, 2026
Active · clear
Silverado Electric
Montclair, CA · CSLB #505268 · as of October 18, 2026
Active · clear
Silverado Electric LLC
Napa, CA · CSLB #509527 · as of October 18, 2026
Active · clear
Silverado Valley Electric
Clayton, CA · CSLB #665725 · as of October 18, 2026
Active · clear
Silverback Electric
Perris, CA · CSLB #1149807 · as of October 18, 2026
Active · clear
Silverback Electric
Santa Fe Springs, CA · CSLB #1143786 · as of October 18, 2026
Active · clear
Silver Core Electric LLC
King City, CA · CSLB #1150843 · as of October 18, 2026
Active · clear

Data sourced from the California Contractors State License Board (CSLB), current as of October 18, 2026. IsItLicensed is not affiliated with or endorsed by the CSLB or the State of California. Always verify against the official record.