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List of Quanta Services subsidiaries

Verified insights into Quanta Services’ global corporate structure and subsidiaries.

Quanta Services, Inc. is a leading infrastructure services company headquartered in Houston, United States. Established to meet the growing demand for energy, communication, and utility infrastructure, Quanta operates a wide-reaching corporate structure with a network of 612 subsidiaries worldwide. This ownership information comes from CompanyData.com’s reliable corporate hierarchy database, featuring data on over 380 million companies globally.

Distribution of Quanta Services subsidiaries across regions

Quanta Services has 612 subsidiaries spread throughout 16 countries, with the majority located in the United States (514 subsidiaries, 84%), followed by Canada (61 subsidiaries, 10%), and Australia (19 subsidiaries, 3%). These key regions highlight Quanta’s focus on infrastructure services across energy, telecom, and related sectors worldwide.

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Top Subsidiaries and Companies Owned by Quanta Services

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Company Name Country City Address 1 Address 2 State/Province Postal Code Website Founding Year Yearly Revenue in U.S. Dollars Employees Total Business Legal Type - Description Number of Companies in Group Company Registration Number Email Phone Number UniqueID
1
M.G. Dyess, LLC
USA
Bassfield
7159 Highway 35
N/A
Jefferson Davis
39421
mgdyess.*****
1992
$25,668,698
60
Corporation
639
589047
***********@***.***
+1*****63
0228707003
2
H.L. Chapman Pipeline Construction, INC.
USA
Leander
9250 Fm 2243
N/A
Williamson
78641
hlchapman.*****
1999
$15,733,485
15
Corporation
639
0034509500
******@****.***
+1*****62
0174212089
3
B & N Clearing And Enviromental LLC
USA
Fayetteville
438 E Millsap Rd Ste 102
N/A
Washington
72703
quantaservices.*****
N/A
$0
6
639
N/A
************@****.***
+1*****77
0191934875
4
Par Electrical Contractors, LLC
USA
Kansas City
4770 N Belleview Ave Fl 300
N/A
Jackson
64116
parelectric.*****
N/A
$0
3
639
N/A
***********@*****.***
+1*****40
0190598997
5
Price Gregory Services, LLC
USA
The Woodlands
24 Waterway Ave Ste 850
N/A
Montgomery
77380
quantaservices.*****
2009
$2,545,792
3200
Partnership of unknown type
639
N/A
*********@*******.***
+1*****00
0941480863
6
Consolidated Power Projects Australia PTY LTD
Australia
Adelaide
205 Halifax St
N/A
South Australia
5000
conpower.*****
1996
$128,933,805
1085
Corporation
639
075411219
**********@*****.***
+6*****00
0859724102
7
Coe Drilling PTY LTD
Australia
Brisbane
L 2 22 Cordelia St
N/A
Queensland
4101
N/A
1988
$105,121,310
1085
Corporation
639
007015563
************@******.***
+6*****00
0852338804
8
Enscope PTY LTD
Australia
Perth
U 7 50 Oxford Cl
N/A
Western Australia
6007
enscope.*****
2009
$108,351,355
1085
Corporation
639
136478030
*******@****.***
+6*****00
0868759237
9
Elite Construction Of Ocala, LLC
USA
Kissimmee
3575 Suzette Dr
N/A
Osceola
34746
eliteofocala.*****
N/A
$0
163
639
N/A
************@******.***
+1*****00
0121801365
10
Crux Subsurface, INC.
USA
Spokane Valley
4308 N Barker Rd
N/A
Spokane
99027
cruxsub.*****
2012
$21,762,822
100
Corporation
639
2010092400367
************@******.***
+1*****09
0127018883
11
Gem Mobile Treatment Services, INC.
USA
Signal Hill
2525 Cherry Ave Ste 105
N/A
Los Angeles
90755
gem.*****
2024
$6,329,402
60
Corporation
639
N/A
******@******.***
+1*****75
0135027029
12
Quanta Services Management Partnership, L.P.
USA
Houston
1360 Post Oak Blvd
N/A
Harris
77056
quantaservices.*****
1998
$27,650,284
52
Partnership of unknown type
639
0011011610
******@*****.***
+1*****00
0912295432
13
Quanta Telecommunication Solutions LLC
USA
Jacksonville
2083 Nickerson Ln
N/A
Duval
32207
N/A
N/A
$0
51
639
N/A
************@*****.***
+1*****79
0216971960
14
Par Electrical Contractors, INC.
USA
Wichita
4605b Southwest Blvd
N/A
Sedgwick
67215
N/A
N/A
$0
45
639
N/A
************@******.***
01039357374
15
Digco Utility Construction, L.P.
USA
Houston
8706 E Hardy Rd
N/A
Harris
77093
nhplc.*****
N/A
$0
25
639
N/A
*******@***.***
+1*****00
0903145224
16
Island Mechanical CORPORATION
USA
Kapolei
91-2461 Coral Sea Rd
N/A
Honolulu
96707
islandmechanical.*****
1993
$8,896,015
20
Corporation
639
89578 D1
*******@******.***
+1*****63
0911173254
17
Intellect Systems PTY LTD
Australia
Perth
L 21 Amp Building 140 St Georges Tce
N/A
Western Australia
6000
intellectsystems.*****
2005
$5,997,341
16
Corporation
639
115885348
*******@*******.***
+6*****00
0865103584
18
Quanta Infrastructure Services, LLC
USA
Houston
2800 Post Oak Blvd Ste 2600
N/A
Harris
77056
quantaservices.*****
2016
$9,462,648
13
Corporation
639
6116763
*******@****.***
+1*****00
0192428046
19
North Sky Engineering, INC.
USA
Sumner
14103 Stewart Rd
N/A
Pierce
98390
northskyeng.*****
2009
$342,178
10
Corporation
639
N/A
**********@***.***
+1*****28
0191591417
20
Nlc TX., INC.
USA
Meridian
7600 S Meridian Rd
N/A
Ada
83642
lineman.*****
2018
$640,478
6
Corporation
639
00562464
********@***.***
+1*****17
0192360240
21
Underground Construction CO., INC.
USA
Houston
2800 Post Oak Blvd Ste 2600
N/A
Harris
77056
N/A
2019
$2,161,969
6
639
N/A
******@*****.***
0228429115
22
Argut Holdings PTY. LTD.
Australia
Canberra
G65b Woden Plaza
N/A
Australian Capital Territory
2606
N/A
1985
$67,720
6
Corporation
639
008609569
*******@******.***
+6*****88
0866271169
23
Qtsl, LLC
USA
Houston
2800 Post Oak Blvd Ste 2600
N/A
Harris
77056
N/A
N/A
$975,453
5
639
N/A
********@*******.***
0229476013
24
Quanta Services, INC.
USA
La Grange
4160 Fm 153
N/A
Fayette
78945
N/A
N/A
$0
5
639
N/A
******@********.***
+1*****24
0192348709
25
Par Electrical Contractors, LLC
USA
Kansas City
4770 N Belleview Ave Fl 300
N/A
Jackson
64116
parelectric.*****
N/A
$0
4
639
N/A
******@*******.***
+1*****40
0150455200
26
Tom Allen Construction Company
USA
Houston
1360 Post Oak Blvd Ste Null
N/A
Harris
77056
trinityconsultants.*****
2009
$355,638
4
Corporation
639
760589277
*******@***.***
+1*****60
0137604861

Companies by Employee Size

  • 0 or Unknown 20
  • 1-4 209
  • 5-9 111
  • 10-19 71
  • 20-49 89
  • 50-99 64
  • 100-199 38
  • 200-499 24
  • 500-999 4
  • 1.000-4.999 9

Companies by Revenue Size (in USD)

  • 0 or Unknown 341
  • 1 to 100.000 8
  • 100.001 to 499.999 33
  • 500.000 to 999.999 42
  • 1.000.000 to 4.999.999 101
  • 5.000.000 to 9.999.999 27
  • 10.000.000 to 49.999.999 48
  • 50.000.000 to 99.999.999 14
  • 100.000.000 to 499.999.999 19
  • 500.000.000 to 999.999.999 5
  • 1.000.000.000 or more 1
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Explore Global Corporate Structures in Detail

Quanta Services’ ownership network is part of more than 41 million corporate hierarchies mapped in our company ownership database. It reveals how companies are structured and connected, showing parent entities and subsidiaries with verified data from groups across 200 countries and jurisdictions. Discover how our dataset works — and request a custom sample to see the details.

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Quanta Services Company Facts

Where is Quanta Services headquartered?

In Houston, Texas, United States.

How many subsidiaries does Quanta Services have?

About 612 across multiple countries.

Who owns Quanta Services?

Quanta Services is publicly traded; no single majority shareholder.

Is Quanta Services a US company?

Yes. Quanta Services Inc. is incorporated in the United States.

How many employees work for Quanta Services?

Quanta employs approximately 37,000 people worldwide.

Corporate family tree

Why Understanding Quanta Services Ownership is Important

Knowing who owns what helps you understand how companies operate and connect. Our corporate hierarchy data lets you follow the links between parent companies, subsidiaries, and shareholders, showing control, structure, and risks within any global group. Whether you’re reviewing Quanta Services or another multinational, this insight supports compliance reviews, business research, and better data management. With verified ownership details on over 380 million companies worldwide, CompanyData.com provides a clear view of ownership across industries and borders.

How We Define Global, National, and Local Headquarters for Quanta Services

At CompanyData.com, we map company structures like that of Quanta Services using a three-level hierarchy: Global, National, and Local headquarters. This system helps reveal the role of each part within the company family.

Our three levels explained

  • Global Headquarter — The global headquarter oversees the whole group. For Quanta Services, this is the international corporate office in Houston, USA, at the top of the ownership chain.
  • National Headquarters — These are country-level entities that manage local operations and report to the global parent. For example, Quanta Canada Ltd. handles Canadian operations, while other units cover Australia and other countries.
  • Local Headquarters — Regional or city-level subsidiaries manage day-to-day business, project execution, and local compliance within their markets.

Each company is given a unique ID so you can connect subsidiaries to parents, trace ownership lines, and easily use the data in your systems.

How control is determined

We define control mainly by ownership share. When a company owns over 50% of another, it’s treated as a controlled subsidiary. Our focus on majority control relationships helps paint a clear picture of corporate hierarchies. This approach accurately maps complex ownership like Quanta Services’ and can be used for any multinational.

Why this matters for your business

Understanding this structure helps identify decision-makers within the Quanta Services Group, eases compliance checks, and supports mergers, acquisitions, or risk assessments. Using verified ownership data from CompanyData.com, users get transparent insight into how Quanta Services and similar global companies are organized. With data covering more than 612 companies linked in 12 countries including the USA [US], Canada [CA], Australia [AU], and others, our database offers clarity and confidence when working with international corporate networks.

 

Quanta Services

Quanta Services Global Corporate Structure

CompanyData.com provides trusted data for companies seeking clear insights into the global ownership and subsidiary structures of major corporations like Quanta Services. Our data supports compliance, market research, and strategic planning with accurate and up-to-date company details. You can request free data samples or larger tailored datasets crafted for your business needs. For contact or lead generation lists, please see our Company Data Platform.

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Quanta Services ownership & subsidiary data – FAQs

You can access Quanta Services company data through API, bulk files, or the Bold Platform. We create custom datasets based on your target countries, industries, and company profiles. After you share your criteria, our experts prepare a tailored dataset and send a free quote with record counts and sample data within 24 hours. Once approved, we deliver your data quickly in your preferred format — via Excel, API, bulk file, or directly in the Bold Platform.

If you need company data beyond Quanta Services or from different industries, CompanyData.com offers full global coverage. You’ll receive accurate, verified business information across every country and sector. Simply tell us your needs, and our experts will prepare a custom dataset tailored to your goals. Within 24 hours, you’ll get a free quote, record count, and sample data. Once approved, we deliver your data fast — via Excel, API, bulk file, or on the Bold Platform.

The price for our Quanta Services company data depends on the details and delivery method you choose. Whether you want a list of subsidiaries or a full dataset via API or bulk files, we offer flexible pricing to meet your needs. You can request a free quote and record count within 24 hours. Our team provides transparent pricing and a free sample of 10 company contacts. At CompanyData.com, you only pay for verified global data you require.

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At CompanyData.com, you can find detailed, verified data on Quanta Services, Inc. and all its subsidiaries, updated daily. This data includes company names, registration details, locations, industry classifications, financial metrics, and key contacts. Access and download the data via the Bold Platform, API, or bulk file delivery. Our database offers 100% worldwide company coverage ensuring complete and accurate insights.

CompanyData.com collects data from verified global business sources to ensure accuracy and comprehensive coverage. Our sources include official business registers, financial filings, LEI records, trusted partners, and verified company websites. Data is cross-checked and validated by specialists to guarantee it is accurate, current, and GDPR-compliant.

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