#957287 · General Engineering, General Building, Boiler, Hot Water Heating, C10, C16, C20, C34, C36, C46, C60, Hazardous Substance Removal · San Diego

Air Place Masters Construction

#921890 · General Building, Concrete, C12, C34, C36 · Victorville

Airco Mechanical Inc

#311454 · General Engineering, General Building, Insulation & Acoustical, Boiler, Hot Water Heating, C10, C16, C20, C34, C36, C38, C42, C43 · Sacramento

Ajm General Construction

#1035253 · General Engineering, General Building, C10, C34, C51, C60, Hazardous Substance Removal · Santa Rosa

Aleph Underground Pipelines Inc

#1135379 · C34 · San Jose

All Bay Sewer Inc

#1076969 · C34 · Santa Rosa

All Pro Pipeline And Concrete Service Inc

#1066434 · Concrete, C34 · Hilmar

Allen Pipeline Inc

#825139 · C34 · Monrovia

Allied Fire Protection

#251700 · C12, C16, C34, C60 · Oakland

Alpha Trenchless

#1044308 · C34, C36 · Petaluma

Charles C Geyer Dba Alsco Geyer Irrigation

#350604 · General Engineering, C34 · Arbuckle

Alta Pump Company Llc

#1085425 · C34, D21 · Kingsburg

Amador Mechanical Inc

#501343 · General Engineering, C34, C36, C42 · Plymouth

Ambros Construction Inc

#1037467 · General Engineering, General Building, C34, C39 · Norwalk

American Contractors Inc

#309863 · C34, C36, C42 · Orange

American Cpl Inc

#1124230 · C34, C36 · Yorba Linda

American Plumbing Service

#1092023 · C34, C36 · Yorba Linda

American Way Pipeline Inc

#1133122 · C34 · Fullerton

Amj Inc

#1077396 · General Engineering, C34 · Chino

Andreini Brothers Inc

#239322 · General Engineering, Concrete, C12, C21, C34 · Half Moon Bay

Andreski Underground

#849604 · General Engineering, C34 · Riverside

Angels Sewer & Drain Inc

#798432 · C34, C36, C42 · Angels Camp

Aparicio Co

#812833 · C34 · Moreno Valley

Scott Arent Pipeline

#928030 · C34 · Riverside

Arie Plumbing

#721792 · General Building, C20, C34, C36 · Los Angeles

Arizona Pipeline Company

#423545 · General Engineering, C10, C34, C36, Hazardous Substance Removal · Hesperia

Associated Pipe Line Contractors Inc

#399495 · C34 · Houston

Eddie Axner Construction Inc

#575300 · General Engineering, C21, C34, Hazardous Substance Removal · Redding

B

B & B Backflow Service

#958277 · C34 · Ripon

B & L Automatic Fire Protection Co

#738700 · C16, C34 · Lancaster

B & L Automatic Fire Protection Inc

#822807 · C16, C34, D64 · Lancaster

Robert Holcomb Consult Inc Dba B & L Consulting & Development

#948259 · General Building, C12, C34 · Hemet

B L H Construction Company

#801617 · General Engineering, General Building, C10, C16, C34 · Woodland Hills

B M D Construction

#301780 · C34, C42 · Moorpark

B M I - Pacwest Inc

#819679 · Boiler, Hot Water Heating, C20, C34, C36, C43 · Tulare

Baeskens Construction Inc

#481844 · General Building, C34, C36 · Hesperia

S G Banks Inc

#1008231 · General Engineering, ASB, C34, C39, D09, D21, Hazardous Substance Removal · Bakersfield

Baseband Telecom Corporation

#1071824 · General Engineering, C10, C34, C36 · Corona

Benchmark Pipeline

#1141451 · C34 · Bakersfield

George Bender Plumbing Inc

#754787 · C34, C36 · San Pedro

Benicia Plumbing Inc

#329632 · General Engineering, General Building, Boiler, Hot Water Heating, C16, C20, C34, C36, C42 · Benicia

T M Bennett Plumbing & Drain Inc

#985357 · C34, C36 · Carlsbad

Best Boring And Bursting Inc

#1005228 · C34 · Costa Mesa

J Noble Binns Plumbing Company Inc

#481544 · Boiler, Hot Water Heating, C16, C34, C36, C55 · Bakersfield

Biological Technology Inc

#477941 · General Engineering, C34, C42, Well Drilling · Oakhurst

Black Sheep Plumbing

#1115703 · C34, C36, C42 · Blythe

Blue Sky Pipeline Construction

#1117300 · C34 · Boise

Bmi Mechanical Inc

#332160 · Boiler, Hot Water Heating, C20, C34, C36, C43 · Tulare

Bonafide Ulitiy Pipeline Group

#1149132 · C34 · Gardena

Boncella Excavation

#613727 · General Engineering, C12, C34, C42 · Yreka

Frank Bonetti Plumbing Inc

#251165 · Boiler, Hot Water Heating, C20, C34, C36, C42 · Castro Valley

Bonita Pipeline Inc

#817325 · General Engineering, General Building, C34, C36 · Chula Vista

Boudreau Pipeline Corporation

#791842 · General Engineering, C10, C34, C36 · Corona

Brad's Plumbing Llc

#1100307 · C34, C36 · Aromas

Bradshaw Engineering Corporation

#383330 · C16, C34 · Santee

Brandt Construction Company

#484142 · General Engineering, General Building, C16, C34 · Moorpark

Brice Mechanical Contractors Inc

#990800 · General Building, Boiler, Hot Water Heating, C20, C34, C36, C43 · Orangevale

Broadway Mechanical - Contractors Inc

#584263 · General Engineering, General Building, Boiler, Hot Water Heating, C12, C16, C20, C27, C34, C36, C42, C43, C60 · Oakland

Brotherton Corporation

#1065562 · C34 · Gold Hill

Brown's Backhoe

#922359 · C34, C42 · Phelan

Browning Contractors Inc

#771084 · General Engineering, C34, D06 · Fresno

Buffalo Mechanical

#1137903 · General Building, Insulation & Acoustical, Boiler, Hot Water Heating, C20, C34, C36, C42 · Sacramento

Building 5 Septic Inc

#829093 · C34, C42 · Redlands

Bullseye Boring

#926356 · C34 · Calimesa

Burpees Plumbing & Rooter

#982538 · General Building, Boiler, Hot Water Heating, C34, C36, C42, Hazardous Substance Removal · Simi Valley

Barham Inc Dba Bz Construction

#481523 · General Engineering, General Building, Insulation & Acoustical, Concrete, C12, C34 · Ceres

C

C E M Construction Corporation

#951234 · General Engineering, General Building, Concrete, C12, C16, C21, C27, C34, C36 · Montebello

C P C Inc

#862027 · General Engineering, C34 · Upland

C P Construction Co Inc

#304795 · General Engineering, C12, C34, C42 · Ontario

C-rod Pipeline Inc

#1024299 · General Engineering, C34 · Yucaipa

Caccia Home Services

#379364 · C10, C31, C34, C36 · Burlingame

Cal - West Fire Protection Specialist

#870249 · C16, C34 · Santa Ana

Cal Engineering Inc

#1131555 · General Engineering, C34 · Stockton

Cal West Concrete Inc

#893450 · Concrete, C12, C13, C27, C34, C42, D06, D49 · Woodland

Cal-oso Backflow Services Llc

#1109590 · C34, C36, D64 · Menifee

California Backflow

#1092650 · C34 · Stockton

California Radiant

#784642 · C34, C36 · Santa Cruz

California Utility Company

#1019526 · C34, D09 · Los Gatos

Caraway Construction Inc

#591767 · General Engineering, General Building, C12, C13, C29, C33, C34, C36 · Trona

J M Carden Sprinkler Co Inc

#166282 · C16, C34 · Los Angeles

Gustavo Carrillo

#1038608 · C34 · Perris

R J Carroll & Sons Inc

#209226 · Boiler, Hot Water Heating, C16, C20, C34, C36, C42, C43, D56 · Santa Barbara

Mario Humberto Castro

#1133026 · C34 · Bakersfield

Ceballos Inc

#741470 · General Building, Concrete, C12, C29, C34 · Minden

Cec Construction Engineering

#1095384 · General Engineering, General Building, C10, C34, C36, C42 · Big Bear City

Celtic Communications Inc

#713288 · Low Voltage Systems, C34 · Simi Valley

Charps Llc

#1040780 · C34 · Clearbrook

Chickasaw Enterprises

#670608 · C34 · Perris

Christian Brothers Lining Co

#933224 · C34 · Fairfield

Cipp Lining Services

#1125813 · C34 · Taylor

Ckm Pipeline Inspection Services

#703025 · General Engineering, C31, C34 · Temecula

Clearwater Pipeline Inc

#505761 · General Engineering, C34 · Perris

Cnf Plumbing

#1114162 · C34, C36 · Bakersfield

Coastal Pipeline Inc

#1119715 · General Engineering, C12, C34, C36 · Monterey

Coastlne Plumbing Inc

#1054113 · C34, C36 · Carpinteria

Coats Plumbing

#899428 · C34, C36 · Pittsburg

Cobra Pipeline Co Inc

#1011587 · C34 · Suisun

Community Construction

#658031 · General Building, C12, C34, C42 · Chico

Competitive Plumbing

#784505 · C34, C36 · Coto De Caza

Consolidated Building & Construction

#677214 · General Building, C34 · Bakersfield

Continental Plumbing Inc

#399073 · Boiler, Hot Water Heating, C16, C34, C36, Hazardous Substance Removal · Mira Loma

Cook Enterprises

#580263 · General Engineering, General Building, C10, C34, C36 · Penn Valley

Sean Douglas Cook

#949737 · C34 · Palmdale

Cor Plumbing

#1133316 · General Engineering, ASB, C34, C36, C42, Hazardous Substance Removal · Santa Paula

Corning Rentals

#268683 · General Building, C12, C21, C34, C42 · Corning

Cratus Inc

#987888 · General Engineering, C34 · San Francisco

Crosby Construction

#994490 · General Engineering, General Building, C34, C36 · Altadena

Crosetti Excavation, Inc

#1150162 · General Engineering, C12, C13, C31, C34, C42, Well Drilling, Hazardous Substance Removal · Ukiah

Cva Plumbing

#1025602 · C34, C36 · Santa Barbara

D

D & B Plumbing Inc

#394975 · General Building, C34, C36 · Clovis

D & S Plumbing Systems Inc

#1112879 · C34, C36 · Yorba Linda

D B Backflow Services

#1105073 · General Building, Residential Remodeling, C16, C34, C36 · Kingman

D Corporation General Contracting And Engineering

#926895 · General Engineering, General Building, C34 · Nuevo

D D L Construction

#688836 · General Engineering, General Building, C34 · Post Falls

D H Underground Pipeline

#964558 · C34 · Albuquerque

D P M Plumbing Co

#776149 · General Engineering, C34, C36 · Santa Ynez

Dvbe Mechanical Inc

#1018933 · General Building, Boiler, Hot Water Heating, C16, C20, C34, C36, C42, D40 · Long Beach

Daart Engineering Company Inc

#372946 · C16, C34 · Wildomar

David Cooke Underground

#1103414 · C34 · Reedley

David's Plumbing Llc

#1024128 · C34, C36 · Raymond

Dc Plumbing

#1087697 · C34, C36 · Santa Barbara

Ddh Apple Valley Construction Inc

#680052 · General Engineering, General Building, C34, C42 · Apple Valley

De La Vega P & C

#945027 · General Engineering, General Building, Concrete, C27, C34, C36, D49 · Burlingame

De Silva Gates Construction - Myers A Joint Venture

#1100766 · General Engineering, General Building, Concrete, C12, C31, C32, C34 · Dublin

De Soto Pipeline Construction

#854953 · C34 · Moreno Valley

Dellatorri General Engineering Llc

#1098525 · General Engineering, General Building, C34 · San Jacinto

Diamond House Plumbing

#830356 · C34, C36, C42 · Riverside

Dig Co Pipeline

#1144778 · C34 · Yucca Valley

Directional Technologies Inc

#966722 · C34, Well Drilling · Wallingford

Doncam American Inc Dba Discount Plumbing, Heating & Air

#940426 · General Building, C20, C34, C36 · Manteca

Doheny Plumbing Inc

#736531 · C34, C36 · San Clemente

Double Diamond Pipeline

#1001327 · C34 · Carson City

Double R Construction

#589105 · C34 · Pomona

Dowling Pipeline

#993497 · C34 · Foresthill

Draves Pipeline Incorporated

#376472 · General Engineering, C34, C42 · Bonsall

Dvd Construction

#1029241 · General Engineering, General Building, C34 · Santa Ana

E

E & R Construction Inc

#449476 · General Engineering, C34, C42 · Baldwin Park

Easy Flow Llc

#960845 · General Engineering, C34 · Poway

Eco-flow Plumbing Inc

#930878 · C34, C36 · Santa Cruz

El-co Contractors Inc

#317093 · General Engineering, C12, C34, C42, D35 · San Bernardino

Elite Plumbing

#498065 · C34, C36 · Fullerton

Ellingson Drainage Inc

#1016551 · C34, Well Drilling, D09 · West Concord

L G Ellis Plumbing Inc

#375658 · General Engineering, Boiler, Hot Water Heating, C16, C20, C34, C36, C42 · Sacramento

Empyrean Plumbing Inc

#879157 · General Building, Insulation & Acoustical, C34, C36 · Riverside

Engel & Gray Inc

#244842 · General Engineering, C21, C34, Hazardous Substance Removal · Santa Maria

Robert B Enns Construction Inc

#587666 · General Engineering, General Building, C34 · Cayucos

Environmental Management

#471704 · General Engineering, General Building, C12, C21, C34 · Novato

Environmental Waste Minimization Inc

#978096 · General Engineering, C12, C21, C34, Hazardous Substance Removal · Northampton

Evaluation & Remediation Services

#807968 · General Engineering, General Building, Insulation & Acoustical, Boiler, Hot Water Heating, C21, C34, C36, C42, C55 · Lancaster

Evenson Pipeline Contractor

#836293 · C12, C34 · San Luis Obispo

Larry S Everett Dba Everett Enterprises

#608465 · General Building, C34, C36 · Nipomo

Express - Rooter Inc

#735657 · C34, C36 · Carpinteria

F

Frank Salazar Dba F S Plumbing

#612036 · C34, C36 · Martinez

Falcon Fire Protection Inc

#958968 · C16, C34, C36 · La Crescenta

J M Farnan Co Inc

#298016 · General Building, C16, C34, C36 · La Verne

Fibertel Communications

#912497 · Low Voltage Systems, C34 · Sherwood Forest

Field View Construction Co Inc

#1062979 · General Engineering, C10, C27, C34, C42, D31 · Riverside

Fire Co Sprinkler

#1080808 · C16, C34, D62 · Brea

Flying C Pipeline Construction Inc

#797646 · C13, C34 · Exeter

Fmpipeline Co

#1050657 · C34 · San Bernardino

Foothill Fire Protection Inc

#783132 · General Building, C10, C16, C34 · Loomis

Fpc Industrial Plumbing

#747675 · C34, C36, C42 · Canyon Country

Fuel Oil Systems

#793536 · General Engineering, C10, C34, C36, Hazardous Substance Removal · Lathrop

G

G G Garcia Plumbing Pumping & Rooter Inc

#961596 · General Engineering, General Building, C34, C36, C42 · Orange

G J M Engineering Inc

#920805 · General Engineering, General Building, C34, C36 · Los Alamitos

G T R Industries Inc

#928117 · C16, C34 · Orange

G F Garcia & Sons Inc

#736277 · General Engineering, Concrete, C12, C21, C34 · Cayucos

G G Garcia Plumbing Pumping & Rooter

#656539 · General Engineering, General Building, C20, C34, C36, C42 · Orange

General Underground Fire Protection Inc

#485748 · C16, C34 · Orange

Geo H Wilson Mechanical Contractors

#950443 · General Building, Boiler, Hot Water Heating, C10, C16, C20, C34, C36, C38, C42, C43 · Pasadena

George The Rooterman

#906336 · C34, C36 · Santa Barbara

Gary Ghilotti Engineering Contractor

#395047 · General Engineering, General Building, Concrete, C12, C21, C32, C34, C42 · San Rafael

Gls Construction

#941558 · General Building, C27, C34, C36 · Santa Barbara

Gmz Engineering Inc

#967627 · General Engineering, General Building, Concrete, C10, C12, C31, C34, C36, C42 · Westlake Village

Good Land Plumbing & Construction Inc

#868972 · General Building, C34, C36 · Goleta

Green Plumbing

#936170 · C34, C36 · Santa Paula

Herschel Griggs Plumbing Inc Dba Buddy Griggs Plumbing

#936447 · C34, C36 · Santa Cruz

Grp Contractors Inc

#997678 · General Engineering, C34 · Buena Park

Gsm Pipeline Construction & Repair

#1019191 · C34 · Oxnard

Guess Plumbing & Supply Inc

#1050944 · C16, C34, C36 · Susanville

H

H C C - Hanson Company Corporation

#949794 · C10, C34 · Laguna Niguel

H P L Mechanical Inc

#308208 · General Building, Boiler, Hot Water Heating, C16, C20, C29, C34, C36, C42, Hazardous Substance Removal · Santa Ana

Habanero Plumbing

#916861 · C34, C36 · Ventura

Hacienda Pipeline Company Inc

#818685 · C34, C42 · Yorba Linda

Hanging H Companies Llc

#1054650 · C34 · Sedro Woolley

Hardiman Construction

#791039 · C34 · South San Francisco

The Hazmat Team Inc

#1083251 · General Engineering, C34 · Fontana

Heard Plumbing Inc

#493927 · C12, C34, C36, C42, Well Drilling, D21 · Alturas

Henry's Plumbing

#1055363 · General Building, C34, C36 · Watsonville

Herk's Plumbing

#988077 · C34, C36 · Modesto

Hickman & Son Mechanical Llc

#451069 · General Engineering, ASB, General Building, Boiler, Hot Water Heating, C16, C20, C34, C36, C38, C42, C60, Hazardous Substance Removal · Azusa

Art Hickman

#250585 · General Building, C34, C36, C42 · Lone Pine

C R Hickman & Co

#433084 · General Engineering, ASB, General Building, Boiler, Hot Water Heating, C16, C20, C34, C36, C38, C42, C60, Hazardous Substance Removal · Azusa

Hickman Construction

#614485 · General Engineering, General Building, C34, C36, C42 · Lone Pine

Hicks Mechanical

#454151 · C16, C34, C36 · Huntington Beach

Hidalgo Plumbing Inc

#986267 · C34, C36 · Moreno Valley

High Desert Underground Inc

#444032 · General Engineering, C34 · Apple Valley

High Performance Pipelines Hydrovac Inc

#1093309 · C34 · Antioch

Bob Holcomb Masonry

#234792 · General Building, C12, C29, C34, Hazardous Substance Removal · Hemet

Brian Holland Construction

#739901 · General Engineering, General Building, C10, C16, C34 · Malibu

Wayne R Holman Construction

#327464 · General Engineering, General Building, C34 · Aromas

Hood Pacific Contractors Inc

#939862 · General Building, C12, C16, C20, C34, C36, C42, C43 · Tustin

Lee Howard Construction Company

#280777 · General Engineering, C12, C13, C31, C34, C42, Well Drilling, Hazardous Substance Removal · Ukiah

Hps Plumbing Services

#793014 · General Engineering, General Building, Insulation & Acoustical, Boiler, Hot Water Heating, C10, C16, C20, C34, C36, C42, C43, C46 · Bakersfield