Who are Quanta Services, Inc.'s major customers?

Quanta Services, Inc. (PWR) key customers include: National Grid plc, PG&E Corporation, The Southern Company, TC Energy Corporation, CENTERPOINT-ENERGY-INC and 25 more. View the full customer network at chainsifter.com/chain/PWR.

What sector is Quanta Services, Inc. in?

Quanta Services, Inc. (PWR) operates in the general sector. ChainSifter tracks its verified supply chain relationships including suppliers, customers, and strategic partners.

Quanta Services, Inc. Supply Chain Data (PWR): 32 Verified Relationships

0Suppliers

30Customers

2Debt Items

20Related Chains

Source-Backed Evidence Depth

Quanta Services, Inc. (PWR) is shown with relationship data already present in ChainSifter's database. Counts below come from stored supply-chain records and filing/source URLs where available; missing source URLs are not filled in or estimated.

47Total relationships

3Distinct source URLs

23High confidence

0.797Average confidence

2026-10-28Latest database update

ChainSifter does not infer unreported suppliers, customers, ownership, acquisitions, debt exposure, revenue dependency, or future supply-chain events on this public page.

Quanta Services, Inc. Suppliers

No suppliers on recordQuanta Services, Inc. does not appear to disclose named supplier relationships in its verified regulatory filings, or upstream suppliers have not yet been identified. Our system processes new filings continuously.

Quanta Services, Inc. Customers

Ticker	Name	Confidence	Evidence
NGGTF	National Grid plc	92%	Reciprocal relationship from NGGTF graph: Reciprocal relationship from PWR graph: Reciprocal relationship from NGGTF graph: Reciprocal relationship from PWR graph: Reciprocal relationship from NGGTF …
PCG	PG&E Corporation	92%	Reciprocal relationship from PCG graph: Reciprocal relationship from PWR graph: Reciprocal relationship from PCG graph: Reciprocal relationship from PWR graph: Reciprocal relationship from PCG graph:…
SO	The Southern Company	92%	Reciprocal relationship from SO graph: Reciprocal relationship from PWR graph: Reciprocal relationship from SO graph: Reciprocal relationship from PWR graph: Reciprocal relationship from SO graph: Re…
TRP	TC Energy Corporation	92%	Reciprocal relationship from TRP graph: Reciprocal relationship from PWR graph: Reciprocal relationship from TRP graph: Reciprocal relationship from PWR graph: s LLC l Sempra Energy l Entergy Corpora…
CENTERPOINT-ENERGY-INC	CENTERPOINT-ENERGY-INC	90%	Representative customers include: l CenterPoint Energy, Inc.
CLEARWAY-RENEW-LLC	CLEARWAY-RENEW-LLC	90%	Representative customers include: l Clearway Renew LLC
DUKE-ENERGY-CORPORATION	DUKE-ENERGY-CORPORATION	90%	Representative customers include: l Duke Energy Corporation
EDF-RENEWABLES	EDF-RENEWABLES	90%	Representative customers include: l EDF Renewables
ENGIE-IR-HOLDINGS-LLC	ENGIE-IR-HOLDINGS-LLC	90%	Representative customers include: l Engie IR Holdings LLC
FIRSTENERGY-CORP	FIRSTENERGY-CORP	90%	Representative customers include: l FirstEnergy Corp.
LOWER-COLORADO-RIVER-AUTHORITY	LOWER-COLORADO-RIVER-AUTHORITY	90%	Representative customers include: l Lower Colorado River Authority
NGGTF	National Grid plc	90%	Representative customers include: l National Grid plc
PATTERN-ENERGY	PATTERN-ENERGY	90%	Representative customers include: l Pattern Energy
PCG	PG&E Corporation	90%	Energy l Engie IR Holdings LLC l PG&E Corporation l Entergy Corporation l Puget Sound Energy, Inc. l Exelon Corporation l RWE AG l FirstEnergy Corp. l Santos Limited l Hydro One Incorporated l Sempra…
PUGET-SOUND-ENERGY-INC	PUGET-SOUND-ENERGY-INC	90%	Representative customers include: l Puget Sound Energy, Inc.
RWE-AG	RWE-AG	90%	Representative customers include: l RWE AG
SANTOS-LIMITED	SANTOS-LIMITED	90%	Representative customers include: l Santos Limited
SEMPRA-ENERGY	SEMPRA-ENERGY	90%	Representative customers include: l Sempra Energy
TC-ENERGY-CORPORATION	TC-ENERGY-CORPORATION	90%	Representative customers include: l TC Energy Corporation
VESPER-ENERGY-DEVELOPMENT-LLC	VESPER-ENERGY-DEVELOPMENT-LLC	90%	Representative customers include: l Vesper Energy Development LLC
AEP	American Electric Power Company, Inc.	72%	largest customer accounted for 8% of our consolidated revenues and our ten largest customers accounted for 30% of our consolidated revenues. Representative customers include: l American Electric Powe…
AEP	American Electric Power Company, Inc.	72%	Reciprocal relationship from AEP graph: Reciprocal relationship from PWR graph: Reciprocal relationship from AEP graph: Reciprocal relationship from PWR graph: Reciprocal relationship from AEP graph:…
CNP	CenterPoint Energy, Inc.	72%	largest customer accounted for 8% of our consolidated revenues and our ten largest customers accounted for 30% of our consolidated revenues. Representative customers include: l American Electric Powe…
CNP	CenterPoint Energy, Inc.	72%	Reciprocal relationship from CNP graph: Reciprocal relationship from PWR graph: Reciprocal relationship from CNP graph: Reciprocal relationship from PWR graph: Reciprocal relationship from CNP graph:…
DUK-PA	Duke Energy Corporation	72%	Reciprocal relationship from DUK-PA graph: Reciprocal relationship from PWR graph: nergy, Inc. l NextEra Energy, Inc. l Comcast Corporation l NiSource, Inc. l Duke Energy Corporation l Pattern Energy…
DUK-PA	Duke Energy Corporation	72%	nergy, Inc. l NextEra Energy, Inc. l Comcast Corporation l NiSource, Inc. l Duke Energy Corporation l Pattern Energy l Engie IR Holdings LLC l PG&E Corporation l Entergy Corporation l Puget Sound Ene…
FE	FirstEnergy Corp.	72%	on Corporation l RWE AG l FirstEnergy Corp. l Santos Limited l Hydro One Incorporated l Sempra Energy l Iberdrola Group l The Southern Company l Idaho Power Company l The Williams Companies, Inc. l I…
FE	FirstEnergy Corp.	72%	Reciprocal relationship from FE graph: Reciprocal relationship from PWR graph: on Corporation l RWE AG l FirstEnergy Corp. l Santos Limited l Hydro One Incorporated l Sempra Energy l Iberdrola Group …
NEE	NextEra Energy, Inc.	72%	nergy, Inc. l NextEra Energy, Inc. l Comcast Corporation l NiSource, Inc. l Duke Energy Corporation l Pattern Energy l Engie IR Holdings LLC l PG&E Corporation l Entergy Corporation l Puget Sound Ene…
NEE	NextEra Energy, Inc.	72%	Reciprocal relationship from NEE graph: Reciprocal relationship from PWR graph: Reciprocal relationship from NEE graph: Reciprocal relationship from PWR graph: nergy, Inc. l NextEra Energy, Inc. l Co…

Quanta Services, Inc. Debt Obligations

Instrument	Description	Confidence	Evidence
PWR-DEBT	Debt stack $2.5B	90%	Market cache reports total debt of $2.5B.
PWR-DEBT-7337	Xbrl Convertible	90%	xbrl convertible detail from xbrl 2008-12-31.

Quanta Services, Inc. Acquisitions

No acquisitions on recordNo completed or pending acquisitions found in our database for Quanta Services, Inc..

Quanta Services, Inc. Ownership

Holder	Name	Confidence	Evidence
PWR-OWNER-DZ-BANK-AG-DEUTSCHE-ZENTRAL-GENO	DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	90%	13F overlay lists DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main as top holder; 1742 tracked holders.

Quanta Services, Inc. Extended Supply Chain Network

Ticker	Name	Chain Index	Hops	Relationship Types
NGGTF	National Grid plc	100.00	1	['customer']
SHEL	Shell plc	100.00	2
TGEN	Tecogen Inc.	100.00	2
NEE	NextEra Energy, Inc.	100.00	1	['customer']
PCG	PG&E Corporation	100.00	1	['customer']
SIM	Grupo Simec, S.A.B. de C.V.	100.00	2
FE	FirstEnergy Corp.	100.00	1	['customer']
JKS	JinkoSolar Holding Co., Ltd.	100.00	2
ED	Consolidated Edison, Inc.	100.00	2
COP	ConocoPhillips	100.00	2
GPJA	Georgia Power Company 5% JR SUB NT 77	100.00	2
EVRG	Evergy, Inc.	100.00	2
CNP	CenterPoint Energy, Inc.	100.00	1	['customer']
D	Dominion Energy, Inc.	100.00	2
AEP	American Electric Power Company, Inc.	100.00	1	['customer']
EIX	Edison International	100.00	2
DUK-PA	Duke Energy Corporation	100.00	1	['customer']
DTM	DT Midstream, Inc.	100.00	2
SRE	Sempra	100.00	1	['customer']
SO	The Southern Company	100.00	1	['customer']

Quanta Services, Inc. Supply Chain