1,017 CSLB C42 license records for California (Page 21 of 21)
Sanitation system contractors for septic and sewage systems.
1,017
Total Contractors
979
Active Licenses
82
Federal Records
Showing contractors 1001-1017 of 1,017
WILLIAM WORTHEY III
ClearLicense #1027856 · LOS ALAMITOS
WILLIAMS JOHN H
ClearLicense #314848 · MISSION HILLS
WILLIAMS PIPELINE CONTRACTORS INC
ClearLicense #353528 · MISSION HILLS
WILLIAMS UNDERGROUND CONSTRUCTION INC
ClearLicense #787857 · OAKLAND
WILLIFORD DONALD A OF CALIFORNIA
ClearLicense #704621 · WISHON
WILLIS KEN CONSTRUCTION INC
ClearLicense #613798 · BIG BEAR CITY
WILNER PLUMBING
ClearLicense #656826 · GRANADA HILLS
WILSON A D INC
ClearLicense #333979 · NORCO
WINTER JACK
ClearLicense #306089 · BAKERSFIELD
WOODWARD DAVID
ClearLicense #505656 · RIDGECREST
WRIGHT SEPTIC
ClearLicense #969430 · SAN JACINTO
WS PLUMBING INC
ClearLicense #912730 · YUCCA VALLEY
WYCKOFF PLUMBING
ClearLicense #199427 · FORTUNA
YATES WASTEWATER SERVICES INC
ClearLicense #878366 · DENAIR
YEARSLEY GERALD EARL
ClearLicense #919390 · BARSTOW
ZIERMAN PLUMBING & HEATING INC
ClearLicense #420848 · SANTA MARIA
ZINICH BACKHOE SERVICE
ClearLicense #660704 · COARSEGOLD
Use this page when you need a California C42 license lookup, a list of licensed sanitation system contractors, or a quick screen before assigning sanitation system work to a sub. Each row links to a contractor profile with CSLB status, workers' comp, bond, federal records, and permit checks.
California has 1,017 CSLB C42 license records for sanitation system contractors. 96% currently hold active licenses and 8.1% have at least one federal compliance record. SiteVetter checks CSLB status, SAM.gov debarment, DOL wage violations, OSHA safety citations, EPA environmental records, and building permits in seconds.
For sanitation system work, 8.1% of licensed contractors have federal records that a standard CSLB license check would not reveal. SiteVetter's 6-source lookup gives GCs a faster way to compare subs before bid award, onboarding, or renewal review.
Data sourced from California Contractors State License Board and federal databases. Updated weekly. For official verification, check directly with CSLB.