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Explore TC Energy subsidiaries worldwide

Inside TC Energy’s global corporate structure

Get a simple overview of how TC Energy is structured around the world. Here, we outline the corporate setup of TC Energy and provide details about its network of 399 subsidiaries across key markets. Originally founded as TransCanada Corporation, TC Energy is a leading North American energy company operating natural gas and oil pipelines, as well as power generation businesses. The information on group ownership comes from CompanyData.com’s verified corporate hierarchy database, which follows over 380 million companies worldwide.

Where TC Energy’s subsidiaries are located

TC Energy has subsidiaries in four countries, with the United States accounting for 310 subsidiaries (77.7%), followed by Canada with 84 subsidiaries (21.1%). Mexico and Luxembourg also host subsidiaries, though in much smaller numbers. This pattern shows TC Energy’s focus on North America, with the majority of its business and assets concentrated in the US and Canada.

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  • Global ownership data

  • Download subsidiary lists

  • Structured hierarchies

  • Contact and email data

Top Subsidiaries and Global Structure of TC Energy

See All Filters
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
Columbia Gas Transmission, LLC
USA
Eagle Rock
15971 Botetourt Rd
N/A
Botetourt
24085
ngts.*****
N/A
$0
7
399
N/A
*****@***.***
0234684671
2
Anr Pipeline Company
USA
Sulphur Springs
6222 N County Rd
N/A
Crawford
47388
N/A
N/A
$0
5
399
N/A
***********@****.***
0979735978
3
Columbia Gas Transmission, LLC
USA
Elyria
627 Walnut Street
N/A
Lorain
44036
N/A
N/A
$0
5
399
N/A
********@*******.***
0734592297
4
Transcanada
USA
Concord
4 Park St Ste 402
N/A
Merrimack
03301
transcanada.*****
N/A
$0
2
399
N/A
*****@*****.***
+1*****28
0120486280
5
Columbia Pipeline Group, INC.
USA
Houston
5151 San Felipe St Ste 2500
N/A
Harris
77056
columbiapipelinegroup.*****
2016
$3,497,432,346
1782
Corporation
399
5592625
*******@********.***
+1*****67
0190893162
6
American Natural Resources Company
USA
Houston
717 Texas St Ste 2400
N/A
Harris
77002
anrpl.*****
2007
$1,074,962,642
1000
Corporation
399
N/A
*****@****.***
+1*****00
0118091126
7
Columbia Gas Transmission, LLC
USA
Claysville
9 Compressor Station Dr
N/A
Washington
15323
tcenergy.*****
N/A
$0
24
399
N/A
*******@******.***
+1*****97
0136394481
8
Columbia Gas Transmission, LLC
USA
Buckhannon
Mortn Ave
N/A
Upshur
26201
N/A
N/A
$0
19
399
N/A
************@********.***
0234632191
9
Columbia Gas Transmission, LLC
USA
Gary
3511 E 15th Ave
N/A
Lake
46403
tcenergy.*****
N/A
$0
17
399
N/A
**********@****.***
+1*****52
0245503983
10
Columbia Gas Transmission, LLC
USA
Greensboro
Davistown Rd
N/A
Greene
15338
tcenergy.*****
N/A
$0
13
399
N/A
**********@*******.***
+1*****02
0905908489
11
Columbia Gas Transmission, LLC
USA
Wayne
State Rt 152
N/A
Wayne
25570
N/A
N/A
$0
8
399
N/A
*****@******.***
0234752059
12
Columbia Gas Transmission, LLC
USA
Mount Olivet
Us Hwy 62
N/A
Robertson
41064
N/A
N/A
$0
7
399
N/A
************@****.***
0738887416
13
Anr Pipeline Company
USA
Bonduel
N4956 Oakcrest Dr
N/A
Shawano
54107
anrpl.*****
N/A
$0
6
399
N/A
*********@******.***
+1*****31
0734302404
14
Transcanada Iroquois LTD
USA
Shelton
1 Corporate Dr Ste 600
N/A
Fairfield
06484
iroquois.*****
1986
$9,789,815
5
Corporation
399
0780753
**********@********.***
+1*****00
0898814713
15
Columbia Gas Transmission, LLC
USA
Shenandoah
Rr 1 Box 260-A
N/A
Prince William
22849
N/A
N/A
$0
5
399
N/A
*********@*******.***
0232405481
16
Anr Pipeline Company
USA
Suring
11345 State Highway 64
N/A
Oconto
54174
anrpl.*****
N/A
$0
5
399
N/A
******@********.***
+1*****05
01068637266
17
Anr Pipeline Company
USA
New Windsor
296 N 600th Ave
N/A
Il
61465
anrpl.*****
N/A
$0
5
399
N/A
***********@***.***
+1*****58
0197141982
18
Tcp Intermediate Gp, LLC
USA
Houston
700 Louisiana St Ste 700 # 700
N/A
Harris
77002
N/A
2019
$1,372,558
1
399
N/A
******@********.***
0228397657
19
Tc Pipelines Intermediate LIMITED Partnership
USA
Houston
700 Louisiana St Ste 700
N/A
Harris
77002
transcanada.*****
1998
$3,080,960
1
Partnership of unknown type
399
2980511
*****@******.***
+1*****00
0191244604
20
Bison Pipeline LLC
USA
Houston
700 Louisiana St
N/A
Harris
77002
transcanada.*****
2013
$2,600,892
1
Partnership of unknown type
399
N/A
********@********.***
+1*****00
01072888340
21
Columbia Gas Transmission, LLC
USA
Glady
Rt 1 Glady Rd
N/A
Randolph
26268
N/A
N/A
$0
5
399
N/A
************@***.***
+1*****00
0734594014
22
Anr Pipeline Company
USA
Hamilton
4193 134th Ave
N/A
Allegan
49419
anrpl.*****
N/A
$0
5
399
N/A
*********@*****.***
+1*****26
0199980684
23
Columbia Gas Transmission, LLC
USA
Mansfield
2385 Cotter Rd
N/A
Richland
44903
tcenergy.*****
N/A
$0
4
399
N/A
********@********.***
+1*****30
0236595562
24
Anr Pipeline Company
USA
Houston
700 Louisiana St Ste 700
N/A
Harris
77002
transcanada.*****
1945
$1,063,722,464
1000
Corporation
399
0394921
*********@*******.***
+1*****00
0118069692
25
Columbia Gulf Transmission, LLC
USA
Rayne
5799 Church Point Hwy
N/A
Acadia
70578
nisource.*****
N/A
$0
98
399
N/A
************@********.***
+1*****51
0180647518
26
Great Lakes Gas Transmission LIMITED Partnership
USA
Lake George
3400 Hickory Rd
N/A
Clare
48633
N/A
N/A
$0
48
399
N/A
********@***.***
+1*****41
0132143226

Companies by Employee Size

  • 0 or Unknown 4
  • 1-4 120
  • 5-9 120
  • 10-19 84
  • 20-49 45
  • 50-99 18
  • 100-199 4
  • 200-499 2
  • 1.000-4.999 2

Companies by Revenue Size (in USD)

  • 0 or Unknown 328
  • 100.001 to 499.999 6
  • 500.000 to 999.999 3
  • 1.000.000 to 4.999.999 20
  • 5.000.000 to 9.999.999 13
  • 10.000.000 to 49.999.999 12
  • 50.000.000 to 99.999.999 4
  • 100.000.000 to 499.999.999 4
  • 500.000.000 to 999.999.999 1
  • 1.000.000.000 or more 8
Download Data

Get 1,000 subsidiaries free

Explore TC Energy's Global Corporate Structure

TC Energy’s ownership network is included in over 41 million corporate hierarchies mapped in our company ownership database. It details how TC Energy is structured, providing verified information about its parent company and subsidiaries in multiple countries. Learn about TC Energy’s global reach and request a free sample from our comprehensive dataset.

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TC Energy Company Facts

Where is TC Energy headquartered?

TC Energy is headquartered in Calgary, Alberta, Canada.

How many subsidiaries does TC Energy have?

TC Energy operates around 399 companies in 4 countries.

Who owns TC Energy?

TC Energy is a publicly traded company, with shares listed and broadly owned by institutional and retail investors.

Is TC Energy a Canadian company?

Yes, TC Energy is incorporated in Canada (company no. 0312288168).

How many employees work at TC Energy?

TC Energy has about 7,000 employees across North America.

Corporate family tree

Why a Clear View of TC Energy’s Corporate Structure Matters

Understanding who owns and manages a company gives insights into how it works and its operational scale. Our corporate hierarchy data makes it possible to track the connections between parent companies, subsidiaries, and stakeholders, showing group ownership, structure, and any risks across the global network. Whether you’re researching TC Energy or other international groups, this kind of information supports compliance, market research, and strong CRM management. CompanyData.com supplies trusted corporate ownership data from millions of companies worldwide, letting you see company networks across regions and industries.

How TC Energy’s Global and Regional Structure Works

CompanyData.com shows company profiles like TC Energy’s within a clear, three-level structure: Global, National, and Local headquarters. This makes it easy to see how each business unit sits within the group and the overall TC Energy family.

The three main levels

  • Global Headquarters — TC Energy Corporation acts as the global headquarters, with its main office in Canada. It is responsible for all subsidiaries and activities around the world.
  • National Headquarters — These entities manage activities in individual countries and report to the global headquarters. For instance, TC Energy has national headquarters and subsidiaries in Canada, United States, Mexico, and Luxembourg.
  • Local Headquarters — These are subsidiaries and operating units responsible for running specific projects, pipelines, and assets in their markets, ensuring local compliance and service delivery.

Each company/entity has its own unique identifier. This lets you connect subsidiaries to the parent, follow ownership chains, and use this information in your business systems.

How control is determined

In our data, control is based on ownership. If a company owns over 50% of another entity, that second business is a controlled subsidiary. This approach makes complex structures like TC Energy’s easier to understand and is standard for large groups.

Benefits of this data

This setup lets you see who has authority over TC Energy’s operations worldwide—helping with compliance, risk management, and mergers or acquisitions. With trusted, mapped ownership data, CompanyData.com gives you confidence to navigate TC Energy’s company network. Our system links over 41 million companies across 200 countries, valuable for anyone managing complex international groups.

 

TC Energy

Global Corporate Structure and Subsidiaries of TC Energy

CompanyData.com delivers verified international business information on company ownership structures and subsidiaries, tailored for CRM enrichment, compliance checks, market research, and business intelligence. Free sample data is available, and customized datasets (with up to 1,000 companies) can be delivered to approved corporate clients with an active business website. For targeted contact lists, visit our Company Data Platform.

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TC Energy ownership & subsidiary data – FAQs

You can access TC Energy company data through API, bulk files, or the Bold Platform. We build custom datasets based on your target countries, industries, and company characteristics. Once you share your requirements, our team prepares a tailored dataset and sends a free quote with record counts and example data within 24 hours. After you approve, we deliver your data fast in your preferred format — via Excel, API, bulk file, or directly in the Bold Platform.

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The price of our TC Energy data depends on your selected details and delivery method. Whether you are interested in the entire subsidiary structure or a focused dataset via API or bulk files, we offer flexible pricing. You can request a free quote and record count within 24 hours — our team provides clear pricing and a free sample of 10 company contacts. At CompanyData.com, you only pay for the quality global data you need.

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At CompanyData.com, you can view up-to-date, verified data on TC Energy and all its subsidiaries, refreshed daily. This includes legal names, company registrations, locations, industry codes, key financial metrics such as TC Energy’s revenue of $10.48 billion, and leading contacts. You can get the data via the Bold Platform, API, or bulk file. Our database covers 100% of global companies, giving you complete business insights.

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