The following companies are subsidiares of Quanta Services: (De) Lazy Q Ranch LLC, 1 Diamond LLC, 1Diamond AS, 618232 Alberta Ltd., 8246408 Canada Inc., Advanced Electric Systems, Advanced Electric Systems LLC, Advanced Utility Testing & Maintenance LLC, Alexander Publications LLC, Allteck GP Ltd., Allteck Limited Partnership, Apprenticeship Programs Inc., Arby Construction, Arcanum Chemicals LLC, Arnett & Burgess Oil Field Construction Limited, Arnett & Burgess Pipeliners (Rockies) LLC, Arnett & Burgess Pipeliners Ltd., B&N Clearing and Environmental LLC, Banister Pipelines Constructors Corp., Banister Pipelines Constructors GP Ltd., Banister Pipelines Limited Partnership, Brent Woodward Inc., Brink Constructors Inc., Brink Constructors Inc. A Corporation Of South Dakota, Brown Engineering and Testing, CAT SPEC Ltd., CAT-SPEC Limited Partnership, CAT-SPEC Limited Partnership (Regd Name) CAT SPEC Ltd., CAT-Spec Limited Partnership, Canadian Utility Construction Corp., Cat Spec Limited LP, Cat Spec Ltd, Cat Spec Ltd. L.P., Cat Spec Ltd. LP, Cat Spec. Ltd. LP, Cat-Spec Ltd (A Domestic limited Partnership), Cat-Spec Ltd LP, Cat-Spec Ltd., Cat-Spec Ltd. L.P., Cat-Spec Ltd. LP, Cat-Spec Ltd. Limited Partnership, Catalyst Changers Inc., Chatham Electric, Citadel Industrial Services L.P., Citadel Industrial Services Ltd., Citadel Industrial Services Ltd. L.P., Citadel Industrial Services Ltd. Limited Partnership, Coe Drilling Pty Ltd., Computapole, Conam Construction Co., Consolidated Power Projects Australia Pty Ltd, Conti Communications Inc., Crux Subsurface Canada Ltd., Crux Subsurface Inc., Cutting Technology - 1 Diamond LLC, DB Utilities Inc., DE Lazy Q Ranch LLC, DNR Pressure Welding Ltd., Dacon Corporation, Dashiell (DE) Corporation (Dashiell Corporation), Dashiell Corporation, Dashiell Corporation DBA Dashiell (DE) Corporation, De Mears Group, De Mears Group Inc., Delaware Quanta Technology LLC, Delaware Underground Construction Co., Didado Utility Company Inc., Digco Utility Construction L.P. Digco Utility Construction Limited Partnership, Dorado Specialty Services L.P., Dorado Specialty Services Ltd., Dorado Specialty Services Ltd. L.P., Dorado Specialty Services Ltd. Limited Partnership, Dorado Specialty Services. Ltd. L.P., Driftwood Electrical Contractors, EHV Power ULC, ELITE PIPING & CIVIL L.P., ELITE TURNAROUND SPECIALISTS LTD, Elite Fabrication Ltd. Elite Fabrication LP, Elite Piping & Civil Limited Partnership, Elite Piping & Civil Limited Partnership, Elite Piping & Civil Lp, Elite Piping & Civil Ltd L.P., Elite Piping & Civil Ltd., Elite Piping & Civil Ltd. L.P., Elite Piping & Civil Ltd. Limited Partnership, Elite Piping and Civil L.P., Elite Turnaround Specialists L.p., Elite Turnaround Specialists Limited Lp, Elite Turnaround Specialists Limited Partnership, Elite Turnaround Specialists Limited Partnership, Elite Turnaround Specialists Ltd Lp, Elite Turnaround Specialists Ltd., Elite Turnaround Specialists Ltd. L.P., Elite Turnaround Specialists Ltd. LP, Elite Turnaround Specialists Ltd. Limited Partnership, Energy Consulting Group LLC, Enscope, Enscope Pty Ltd, FIC GP LLC, Field Personnel Services LLC, First Infrastructure Capital Advisors LLC, First Infrastructure Capital GP L.P., Five Points Construction Co., G-Tek, G-Vac, GEM Engineering Co., Grand Electric Inc., Great Lakes Line Builders, Grid Creative Inc., Grid Manufacturing Corporation, Grid Training Corporation, H.L. Chapman Pipeline Construction Inc., Haverfield Aviation, Haverfield Aviation Inc., Haverfield International Incorporated, Heritage Midstream LLC, IM Electric Inc., IUC ILLINOIS LLC, IUC Nebraska LLC, InfraSource Construction LLC, InfraSource Field Services LLC, InfraSource Services LLC, InfraSources Construction LLC, Infraestructura ETP de Mexico S. de R.L. de C.V, Infrasource Engineering Company PC, Infrasource Iowa Underground LLC, Infrasource Of Pa LLC, Integracion Tecnologica del Peru SAC, Intermountain Electric Inc., Intermountain Electric Inc. A Corporation of Colorado, IonEarth LLC, Irby Construction Company, Irby Construction Company Inc., Iron Mountain M.J. Electric LLC, Island Mechanical Corporation, J.C.R. Construction Co. Inc., J.C.R. Utility Construction Co., J.W. Didado Electric Inc., J.W. Didado Electric LLC, J.w. Didado Electric, JBT Electric LLC, Kingston Contracting Inc., Lazy Q Ranch LLC, Lazy Q Training Center LLC The Lazy Q Lineman School, Legend Foundation Services, Lex Engineering Ltd., Lindsey Electric L.P., Logical Link, Longfellow Drilling, M. G. Dyess Inc., M. J. ELECTRIC LLC IRON MOUNTAIN, M. J. Electric LLC, M. J. Electric LLC - Iron Mountain, M. J. Electric LLC DBA M. J. Electric Iron Mountain LLC, M.J. Electric LLC DBA M.J. Electric Iron Mountain, M.J. Electric LLC Iron Mountain, MTS Field Services, MTS Field Services (Richmond Co), MTS Quanta LLC, Manuel Bros. Inc., Marathon Construction Services, Mears Canada Corp., Mears Equipment Services LLC, Mears Group Inc., Mears Group Pty Ltd, Mears Installation LLC, Mearsmex S. de R.L. de C.V., Mejia Personnel Services LLC, Mercer Technical Services, Microline Technology Corporation, Mid America Energy Services Inc., NACAP Niugini Ltd., NC Northstar Energy Services Inc, NGI Construction, NGI Construction Inc., NGI Construction Inc. (FN), NLC CA. Inc., NLC FL. Inc. Northwest Lineman Center, NLC ID. Inc. Northwest Lineman College, NLC TX. Inc., NPC Energy Services LLC, Nacap Australia, Nacap PNG Limited, Network Communication Services, North Houston Pole Line L.P., North Houston Pole Line Limited Partnership, North Sky Communications, NorthStar Energy Services Inc., Northern Powerline Constructors Inc., Northstar Energy Solutions LLC, Northwest Lineman Center, Northwest Lineman College, Northwest Lineman Training Center, Northwest Lineman Training Center Inc., Nova Constructors LLC, Nova Constructors LTD, Nova Equipment Leasing LLC, Nova Group Inc, Nova Group Inc (CA), Nova Group Inc., Nova Group Inc. DBA NGI Construction, Nova NextGen Solutions LLC, O. J. Pipelines Canada Corporation, O. J. Pipelines Canada Limited Partnership, O.J. Industrial Maintenance, O.J. Pipelines Canada, One Call Locators Canada Ltd., P.D.G. Electric, PAR Electrical Contractors Inc., PDG Electric Co., Par Internacional S. de R.L. de C.V., Performance Energy Services Guyana Ltd., Performance Energy Services L.L.C., Phasor Engineering Inc., Phoenix North Constructors Inc., Phoenix Power Group Inc., Potelco Inc., Potelco Incorporated, Power Delivery Program Inc., Price Gregory International Inc., Price Gregory Services LLC, Probst Construction Inc., Probst Electric Inc., QEPC, QEPC Power Solutions LLC, QES GP LLC, QP Energy Services LLC, QPS Engineering LLC, QPS Engineering LTD., QPS Engineering PLLC, QPS Environmental, QPS Flint Construction, QPS Flint Tank Services, QPS Global, QPS Global Services, QPS Global Services (Richmond Ci), QPS Professional Services, QPSE, QS Mats, QSI Engineering Inc., QSI Finance (Australia) Pty Ltd., QSI Finance (Cayman) Pvt. Ltd., QSI Finance Canada ULC, QSI Finance GP (US) LLC, QSI Finance I (Singapore) Pte. Ltd., QSI Finance I (US) LP, QSI Finance II (Australia) Pty Ltd., QSI Finance II (Lux) S.à r.l, QSI Finance II (Singapore) Pte. Ltd., QSI Finance III (Canada) ULC, QSI Finance III (Lux) SARL, QSI Finance IV (Canada) ULC, QSI Finance IX (Canada) Limited Partnership, QSI Finance V (US) L.P., QSI Finance VI (Canada) ULC, QSI Finance VII (Canada) Limited Partnership, QSI Finance VIII (Canada) ULC, QSI Finance X (Canada) ULC, QSI Inc., QSN Lux Holdings I SCSp, QSN Lux Holdings II SCSp, QSN Lux Holdings III SCSp, QSN Lux Holdings IV SCSp, QTSL LLC, QUANTA FOUNDATION SERVICES, Quanta APL GP II Ltd., Quanta Asset Management LLC, Quanta Associates L.P., Quanta Aviation Services LLC, Quanta Canada GP ULC, Quanta Canada Holdings III Limited Partnership, Quanta Canada Holdings LP, Quanta Canada III GP Ltd., Quanta Capital GP LLC, Quanta Capital LP L.P., Quanta Capital Solutions Inc., Quanta Cares, Quanta EPC Services, Quanta Electric Power Construction LLC, Quanta Electric Power Construction Management Inc., Quanta Electric Power Services LLC, Quanta Electric Power Services West LLC, Quanta Energized Innovations Ltd., Quanta Energized Services U.S. LLC, Quanta Energized Services of Canada Ltd., Quanta Energy Services LLC, Quanta Environmental Solutions, Quanta Equipment Company LLC, Quanta Government Solutions Inc., Quanta Holdings I (Netherlands) B.V., Quanta Holdings II (Netherlands) B.V., Quanta Infraestructura de Chile SpA, Quanta Infrastructure Services LLC, Quanta Infrastructure Services S. de R.L. de C.V., Quanta Inline Devices LLC, Quanta Inspection Services, Quanta Insurance Company Inc., Quanta International Holdings (US) LLC, Quanta International Holdings II Ltd., Quanta International Holdings Ltd., Quanta International Limited, Quanta Kingsvale LP Ltd., Quanta Lines Pty Ltd., Quanta Maine Services LLC, Quanta Middle East LLC, Quanta Pipeline Services Inc., Quanta Power Australia Pty Ltd, Quanta Power Generation Inc., Quanta Power Inc., Quanta Power Solutions India Private Limited, Quanta Resource Development, Quanta Services Africa (PTY) Ltd., Quanta Services Australia Pty Ltd., Quanta Services Chile SpA, Quanta Services Colombia S.A.S., Quanta Services Costa Rica Ltda., Quanta Services Guatemala Ltda., Quanta Services International Holdings II LP, Quanta Services International Holdings LP, Quanta Services Management Partnership L.P., Quanta Services Netherlands B.V., Quanta Services Panama S. de R.L., Quanta Services Peru S.A.C., Quanta Services Puerto Rico LLC, Quanta Services of Canada Ltd., Quanta Subsurface Canada Ltd., Quanta Subsurface LLC, Quanta Tank Services, Quanta Technology Canada ULC, Quanta Technology LLC, Quanta Technology UK Ltd., Quanta Tecnología do Brasil Ltda., Quanta Telecom, Quanta Telecom Services, Quanta Telecommunication Services, Quanta Telecommunication Services LLC, Quanta Telecommunications Services LLC, Quanta Underground Services, Quanta Underground Services (Culpeper Co), Quanta Underground Services (Spotsylvania Co), Quanta Underground Services Inc., Quanta Utility Engineering Services Inc., Quanta Utility Installation Company Inc., Quanta Utility Operation LLC, Quanta West LLC, Quantecua Cia. Ltda., R. R. Cassidy Inc., RMS Holdings LLC, RMS Holdings LLC (Delaware), RMS Welding Systems, RMS Welding Systems LLC, Ranger Directional, Realtime Engineers Inc., Realtime Utility Engineers Inc., Redes Andinas de Comunicaciones S.R.L., Riggin & Diggin Line Construction, Rms Welding LLC, Rms Welding Systems LLC, Road Bore Corporation, Ryan Company Inc. The, Ryan Company Inc. of Massachusetts, Ryan Company Inc.(The), Seaward, Seaward Corp, Seaward Corporation, Service EC (DE) Inc., Service Electric Company (DE), Service Electric Company Inc., Service Electric Company of Delaware, Servicios Par Electric S. de R.L. de C.V., Servicios de Infraestructura del Peru S.A.C., Southwest Trenching Company Inc., Specialty Tank Services L.P., Specialty Tank Services LP, Specialty Tank Services Limited Partnership, Specialty Tank Services Limited Partnership, Specialty Tank Services Ltd., Specialty Tank Services Ltd. (LP), Specialty Tank Services Ltd. L.P., Specialty Tank Services Ltd. LP, Specialty Tank Services Ltd. LP, Specialty Tank Services Ltd. Limited Partnership, Stronghold General LLC, Stronghold Holdings (BVI) Limited, Stronghold Inspection L.P., Stronghold Inspection Limited Partnership, Stronghold Inspection Limited Partnership, Stronghold Inspection Lp, Stronghold Inspection Ltd L.P., Stronghold Inspection Ltd., Stronghold Inspection Ltd. L.P., Stronghold Inspection Ltd. Limited Partnership, Stronghold Limited Partnership, Stronghold Ltd., Stronghold Ltd. Limited Partnership, Stronghold Management Holdings LP, Stronghold Specialty General LLC, Stronghold Specialty Ltd., Stronghold Specialty Ltd., Stronghold Specialty Ltd. Limited Partnership, Stronghold Tower Group LP, Stronghold Tower Group Ltd LP, Stronghold Tower Group Ltd., Stronghold Tower Group Ltd. LP, Stronghold VI LLC, Subterra Damage Prevention Specialists Ltd., Summit Line Construction, Sumter Utilities Inc., T. G. Mercer Consulting Services Inc., TA Construction, TC Infrastructure Services Ltd., Taylor Built, Texas Specialty Tank Services Ltd. LP, The Aspen Utility Company LLC, The ComTran Group Inc., The Hallen Construction Co. Inc., The Massachusetts Ryan Company Inc., The Ryan Company Inc Of Massachusetts, The Ryan Company Inc., The Ryan Company Inc. (Massachusetts), The Ryan Company Inc. of Massachusetts, The Ryan Company Incorporated of Massachusetts, The Ryan Company Of Massachusetts Inc., The Ryan Company of Massachusetts, The Ryan Company of Massachusetts (FN), Tom Allen Construction Company Inc., Tom Allen Construction Company of Delaware, Trans Tech Electric, TurnKey Automation Limited Partnership, TurnKey Automation Limited Partnership, TurnKey Automation Ltd., TurnKey Automation Ltd. Limited Partnership, TurnKey Automation Ltd. Limited Partnership, TurnKey I&E Ltd., Turnkey Automation Ltd. L.P., Turnkey Automation Ltd. LP., UCC Underground Construction Co. Inc., Ucc - Underground Construction Co., Underground Construction Co. Inc., Underground Construction Co. Inc. (Delaware), Underground Electric Construction Company LLC, Utilco Inc., Utility Fleet Services, Utility Line Management Services Inc., Utility Testing & Maintenance LLC, Utility Training Services Corporation, VALARD Polska sp. Z o.o., Valard, Valard, Valard Construction (Ontario) Ltd., Valard Construction (Quebec) Inc., Valard Construction 2008 Ltd., Valard Construction Australia Pty Ltd, Valard Construction LLC, Valard Equipment (AB) Ltd., Valard Equipment GP Ltd., Valard Equipment Limited Partnership, Valard Geomatics (Ontario) Ltd., Valard Geomatics BC Ltd., Valard Geomatics Ltd., Valard Mechanical Ltd., Valard Norway AS, Valard Sweden AB, Valard Zagreb d. o. o., Wade D. Taylor Inc., West Coast Communications, Winco Helicopters, Winco Inc., Winco Inc. an Oregon Based Corporation, Winco Powerline Services, Winco Powerline Services Inc., Winco Powerline Services Inc., Winco Services Inc., World Fiber Inc., and mmit Line Construction Inc..
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