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HAZ

Hazardous Substance Removal Contractor Verification - Page 24

1,891 hazardous substance removal contractors checked against 6 data sources (Page 24 of 38)

About HAZ License

Hazardous substance removal contractors.

1,891

Total Contractors

1,830

Active Licenses

246

Federal Records

Verify a Hazardous Substance Removal Contractor

Hazardous Substance Removal Contractors

Showing contractors 1151-1200 of 1,891

MADONNA JOHN CONSTRUCTION COMPANY INC

Clear

License #358030 · SAN LUIS OBISPO

Active

MAGDAVE ASSOCIATES

Clear

License #680277 · OAKLAND

Active

MAGISTRALE CONSTRUCTION

Clear

License #737993 · SOUTH PASADENA

Active

MAHAFFEY DON H DRILLING CO

Clear

License #139513 · COMPTON

Active

MAIER INTERNATIONAL INC

Clear

License #888905 · ALHAMBRA

Active

MALABICKY J CORP

Clear

License #501709 · CHINO

Active

MALCOLM/SILVERADO A JOINT VENTURE

Clear

License #1004080 · SAN FRANCISCO

Active

MALDONADO YORDY

Clear

License #827188 · UPLAND

Active

MALONEY ODIN JV

Clear

License #1088980 · NOVATO

Active

MALONEY-ODIN A JOINT VENTURE

Clear

License #1088157 · NOVATO

Active

MANNION JOSEPH F JR

Clear

License #390381 · SAN FRANCISCO

Active

MANOLY GREG ROBERT

Clear

License #647673 · CAMARILLO

Contr Bond Susp

MANSOLF EDWARD G

Clear

License #541690 · RAMONA

Active

MARINA CONSTRUCTION INC

Clear

License #1113964 · LAKE FOREST

Active

MARINSHIP DEVELOPMENT INTEREST LLC

Clear

License #1013885 · SAN FRANCISCO

Active

MARIOTT WELDING INC

Clear

License #803585 · BAKERSFIELD

Active

MARTINEZ EXCAVATING

Clear

License #855861 · SYLMAR

Active

MASHBURN WASTE & ENVIRONMENTAL SERVICES

Clear

License #1112506 · BAKERSFIELD

Active

MASON

Clear

License #1031672 · LAKE ISABELLA

Active

MASTERS CONTRACTING CORPORATION

Clear

License #466409 · GLENDALE

Active

MATEO CONSTRUCTING & ENVIRONMENTAL SERVICES ( M C & E S )

Clear

License #845858 · ELK GROVE

Active

MATHEWS GENERAL ENGINEERING AND CONSTRUCTION

Clear

License #1098276 · MANTECA

Active

MATHEWSON JOSEPH R

Clear

License #1026714 · NEWPORT BEACH

Active

MATRIX GENERAL ENGINEERING CONTRACTOR

Clear

License #1135180 · TEMPLETON

Active

MATT KAEMPF

Clear

License #855790 · SANTA CRUZ

Active

MATTHEWS H D DEMOLITION & EXCAVATION

Clear

License #843549 · FRESNO

Active

MAXIMUM SERVICES COMPANY

Clear

License #738081 · LOS OSOS

Active

MAYFIELD ENVIRONMENTAL ENGINEERING

Clear

License #833333 · LONG BEACH

Active

MC CARRON WALT GENERAL CONTRACTOR

Clear

License #283483 · WOODLAND HILLS

Active

MC COY DON CORPORATION

Clear

License #703480 · TEMECULA

Active

MC CULLOUGH PLUMBING INC

Clear

License #559526 · ESCONDIDO

Active

MC DONAGH JOHN BUILDERS AND ENERGY SYSTEMS

Clear

License #422946 · CASTRO VALLEY

Active

MC DONALD MICHAEL B

Clear

License #359625 · ESCONDIDO

Active

MC EDWARDS GROUP THE

Clear

License #743428 · GRASS VALLEY

Active

MC GUIRE PACIFIC CONSTRUCTOR'S

Clear

License #587099 · AUBURN

Active

MC LAREN ROSS FUEL SYSTEM TESTING AND CONSULTING

Clear

License #836874 · CANYON COUNTRY

Active

MC NULTY BILL PLUMBING

Clear

License #535389 · SAN DIEGO

Active

MCCLUSKEY ENGINEERING INC

Clear

License #1027108 · SANTA ROSA

Active

MCCORMICK DEMCON INC

Clear

License #543830 · SANTA MARIA

Active

MCGUIRE AND HESTER - POWER ENGINEERING CONSTRUCTION COMPANY

Clear

License #1129563 · OAKLAND

Active

MCOEJV

Clear

License #1119247 · NOVATO

Active

MCRAE K M INC

Clear

License #424355 · MT EDEN

Active

MDB GENERAL ENGINEERING INC

Clear

License #1054408 · SAN DIEGO

Active

MEC ENVIRONMENTAL INC

Clear

License #682343 · EDWARDS AFB

Active

MECX INC

Clear

License #990401 · HOUSTON

Active

MERCURY DEMOLITION

Clear

License #953310 · SAN MARINO

Active

MESSER LOGGING INC

Clear

License #758853 · AUBERRY

Active

METROCELL CONSTRUCTION INC

Clear

License #829469 · CHINO

Active

MEYER E J COMPANY INC

Clear

License #218385 · YUCAIPA

Active

MEZA ENVIRONMENTAL INC

Clear

License #1018785 · STOCKTON

Active

How to Verify a Hazardous Substance Removal Contractor (HAZ) in California

California requires all contractors performing hazardous substance removal work valued at $500+ to hold a valid CSLB HAZ license. Of the 1,891 licensed hazardous substance removal contractors in the state, 97% currently hold active licenses and 13.0% have at least one federal compliance record.

Manual vetting takes 45+ minutes per contractor and routinely misses violations in databases most people don't know to check. SiteVetter runs CSLB status, SAM.gov debarment, DOL wage violations, OSHA safety citations, and EPA environmental records in seconds—creating a timestamped compliance artifact.

Verification Checklist for Hazardous Substance Removal Contractors

  • Verify the contractor license is active and in good standing
  • Request proof of insurance and bonding
  • Get at least 3 written quotes before selecting a contractor
  • Check federal databases: SAM.gov, OSHA, DOL, and EPA records
  • Confirm bond: California requires $25,000+ contractor bond (SB 607)

Why Verification Matters for Hazardous Substance Removal Work

Under California's "Controlling Employer" doctrine, general contractors face liability for subcontractor safety violations. For hazardous substance removal work specifically, 13.0% of licensed contractors have federal records that a standard CSLB license check wouldn't reveal. SiteVetter's 5-database check catches what a single-source verification misses.

Data sourced from California Contractors State License Board and federal databases. Updated weekly. For official verification, check directly with CSLB.