Where is National Grid headquartered?
National Grid is headquartered in London, United Kingdom.
List of National Grid subsidiaries
National Grid plc is a multinational energy company headquartered in United Kingdom. Established in its current form in 1990, National Grid manages an extensive corporate network with 574 subsidiaries globally. This ownership data is part of CompanyData.com’s verified corporate hierarchy database, covering millions of companies across various industries worldwide.
National Grid holds 574 subsidiaries in 6 countries, with 152 subsidiaries in the United Kingdom (26.5%), 415 in the United States (72.3%), and a small presence of 1 company in the Luxembourg. This distribution highlights its strong positioning in the North American and UK energy markets, covering both transmission and distribution of electricity and gas.
Global ownership data
Download subsidiary lists
Structured hierarchies
Contact and email data
| 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 | Phone Number | UniqueID | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |
National Grid USA Service Company, INC.
|
USA
|
Northport
|
301 Eatons Neck Rd
|
N/A
|
Suffolk
|
11768
|
nationalgridus.com
|
N/A
|
$0
|
563
|
575
|
N/A
|
*******@***.***
|
63*****00
|
0246713106
|
|
| 2 |
National Grid Services, INC
|
USA
|
Brooklyn
|
119 Green St
|
N/A
|
Kings
|
11222
|
nationalgridus.com
|
N/A
|
$0
|
1
|
575
|
N/A
|
******@********.***
|
71*****04
|
0942429273
|
|
| 3 |
National Grid Engineering & Survey INC.
|
USA
|
Albany
|
80 State St
|
N/A
|
Albany
|
12207
|
N/A
|
N/A
|
$104,179,001
|
0
|
Corporation
|
575
|
41043
|
*****@******.***
|
0230004495
|
|
| 4 |
Regal Solar 2, LLC
|
USA
|
Wilmington Manor
|
1209 N Orange St
|
N/A
|
New Castle
|
19801
|
N/A
|
2020
|
$0
|
0
|
Corporation
|
575
|
N/A
|
************@****.***
|
0230007626
|
|
| 5 |
National Grid USA
|
USA
|
Waltham
|
40 Sylvan Rd
|
N/A
|
Middlesex
|
02451
|
nationalgridus.com
|
1999
|
$13,441,056,584
|
18100
|
Corporation
|
575
|
0190691
|
***********@****.***
|
78*****00
|
0941049076
|
| 6 |
National Grid Insurance Company
|
USA
|
Northborough
|
55 Bearfoot Rd
|
N/A
|
Worcester
|
01532
|
nationalgridus.com
|
2009
|
$2,164,113
|
2196
|
575
|
N/A
|
***********@***.***
|
50*****00
|
0941553645
|
|
| 7 |
The Brooklyn Union Gas Company
|
USA
|
Brooklyn
|
1 Metrotech Ctr Fl 1
|
N/A
|
Kings
|
11201
|
nationalgrid.com
|
2001
|
$1,465,860,000
|
500
|
Corporation
|
575
|
26532
|
********@******.***
|
71*****00
|
0118089906
|
| 8 |
Burley Solar, LLC
|
USA
|
Bloomington
|
8414 Normandale Lake Blvd Ste 1200
|
N/A
|
Hennepin
|
55437
|
N/A
|
2024
|
$4,060,438
|
250
|
Corporation
|
575
|
5053689
|
*****@******.***
|
65*****19
|
0230484798
|
| 9 |
National Grid USA Service Company, INC.
|
USA
|
Jamaica
|
8967 162nd St
|
N/A
|
Queens
|
11432
|
nationalgridus.com
|
N/A
|
$0
|
225
|
575
|
N/A
|
**********@****.***
|
80*****23
|
0196201256
|
|
| 10 |
Niagara Mohawk Power CORPORATION
|
USA
|
Liverpool
|
7437 Henry Clay Blvd
|
N/A
|
Onondaga
|
13088
|
N/A
|
N/A
|
$0
|
188
|
575
|
N/A
|
******@*****.***
|
0246742681
|
||
| 11 |
Boston Gas Company
|
USA
|
Boston
|
N/A
|
N/A
|
Suffolk
|
02205
|
N/A
|
N/A
|
$0
|
157
|
575
|
N/A
|
*******@******.***
|
0918907192
|
||
| 12 |
National Grid USA Service Company, INC.
|
USA
|
Riverhead
|
117 Doctors Path
|
N/A
|
Suffolk
|
11901
|
nationalgridus.com
|
N/A
|
$0
|
150
|
575
|
N/A
|
*****@*******.***
|
63*****02
|
0263594657
|
|
| 13 |
National Grid USA Service Company, INC.
|
USA
|
Brooklyn
|
1 Metrotech Ctr
|
N/A
|
Kings
|
11201
|
nationalgridus.com
|
N/A
|
$0
|
150
|
575
|
N/A
|
********@*******.***
|
71*****00
|
01074912090
|
|
| 14 |
National Grid Renewables, LLC
|
USA
|
Minneapolis
|
8400 Normandale Lake Blvd Ste 1200
|
N/A
|
Hennepin
|
55437
|
geronimoenergy.com
|
2019
|
$75,572,996
|
135
|
Corporation
|
575
|
7120622
|
*********@*****.***
|
95*****00
|
0228195379
|
| 15 |
Essex Gas Company
|
USA
|
Waltham
|
40 Sylvan Rd
|
N/A
|
Middlesex
|
02451
|
keyspanenergydelivery.com
|
2006
|
$11,696,208
|
124
|
Corporation
|
575
|
041427020
|
***********@*****.***
|
78*****00
|
0118065667
|
| 16 |
National Grid USA Service Company, INC.
|
USA
|
Buffalo
|
93 Dewey Ave
|
N/A
|
Erie
|
14214
|
nationalgridus.com
|
N/A
|
$0
|
113
|
575
|
N/A
|
***********@*******.***
|
80*****72
|
0153230840
|
|
| 17 |
National Grid USA Service Company, INC.
|
USA
|
Woburn
|
N/A
|
N/A
|
Middlesex
|
01888
|
N/A
|
N/A
|
$0
|
113
|
575
|
N/A
|
***********@*****.***
|
0907058323
|
||
| 18 |
National Grid USA Service Company, INC.
|
USA
|
Ocean Beach
|
Ocean Breeze Walk
|
N/A
|
Suffolk
|
11770
|
N/A
|
N/A
|
$0
|
113
|
575
|
N/A
|
*****@*****.***
|
0298320353
|
||
| 19 |
National Grid USA Service Company, INC.
|
USA
|
Houston
|
1500 Old Spanish Trl
|
N/A
|
Harris
|
77054
|
nationalgrid.com
|
N/A
|
$0
|
113
|
575
|
N/A
|
**********@********.***
|
71*****15
|
0171536231
|
|
| 20 |
National Grid North East Ventures, INC.
|
USA
|
Brooklyn
|
1 Metrotech Ctr
|
N/A
|
Kings
|
11201
|
nationalgrid.com
|
2009
|
$782,089
|
100
|
575
|
N/A
|
********@*******.***
|
71*****00
|
0941520719
|
|
| 21 |
Niagara Mohawk Power CORPORATION
|
USA
|
Warrensburg
|
3690 Main St
|
N/A
|
Warren
|
12885
|
us.ngrid.com
|
N/A
|
$0
|
96
|
575
|
N/A
|
*****@*******.***
|
01069024078
|
||
| 22 |
National Grid Igts CORP.
|
USA
|
Hicksville
|
175 E Old Country Rd
|
N/A
|
Nassau
|
11801
|
nationalgridus.com
|
1981
|
$7,286,210
|
89
|
Corporation
|
575
|
707941
|
********@*****.***
|
63*****00
|
0920494114
|
| 23 |
Massachusetts Electric Company
|
USA
|
La Verne
|
1925 Wright Ave Ste C
|
N/A
|
Los Angeles
|
91750
|
kiewit.com
|
N/A
|
$0
|
59
|
575
|
N/A
|
********@********.***
|
90*****01
|
0948517354
|
|
| 24 |
Ngem Energy LLC
|
USA
|
Queens Village
|
9530 225th St
|
N/A
|
Queens
|
11429
|
N/A
|
1981
|
$13,600,814
|
45
|
Corporation
|
575
|
910561
|
*******@*******.***
|
71*****87
|
0942813320
|
| 25 |
Gridamerica Holdings INC.
|
USA
|
Cleveland
|
127 Public Sq Ste 5000
|
N/A
|
Cuyahoga
|
44114
|
gridamericallc.com
|
2009
|
$737,192
|
35
|
575
|
N/A
|
*********@*******.***
|
21*****00
|
0941521230
|
|
| 26 |
Niagara Mohawk Power CORPORATION
|
USA
|
Baldwinsville
|
500 Henchdale
|
N/A
|
Onondaga
|
13027
|
N/A
|
N/A
|
$0
|
23
|
575
|
N/A
|
**********@****.***
|
31*****63
|
0150035493
|
Get 574 subsidiaries free
National Grid’s ownership map is part of our extensive company ownership database, which includes detailed corporate hierarchies across 200 countries and jurisdictions. This shows how the parent company connects to its subsidiaries and affiliates with verified data on global business groups. See how our dataset functions and request a personalized sample.
National Grid is headquartered in London, United Kingdom.
National Grid owns 574 subsidiaries across 6 countries.
National Grid plc is publicly traded with no single majority shareholder.
Yes, National Grid plc is incorporated in the UK (company no. 0331397083).
National Grid employs approximately 20,000 people worldwide.
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Understanding ownership is important to see how companies connect and function. Our corporate hierarchy data helps you follow relationships between parent companies, subsidiaries, and shareholders, showing control, structure, and risks within any global group. Whether you’re reviewing National Grid or another multinational, this insight supports compliance verification, market studies, and better CRM data organization. With verified ownership records of over 380 million companies worldwide, CompanyData.com offers a clear picture of who controls whom across industries and countries.
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This model helps identify actual decision-makers in the National Grid group, simplifies compliance checks, and supports mergers and acquisitions or risk assessments. By mapping each company with confirmed ownership data, CompanyData.com lets you explore National Grid’s corporate structure easily and understand how global companies organize themselves. With over 41 million companies linked across 200 countries and jurisdictions, our database delivers clarity and transparency to teams working with global corporate networks.
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At CompanyData.com, you can access detailed, verified data on National Grid plc and all its subsidiaries, updated daily. This includes company names, registration details, locations, industry classifications, financial indicators, and key contacts. National Grid has a revenue of $20.77 billion and a global corporate structure including subsidiaries mainly in the United Kingdom, the United States, the Cayman Islands, Luxemburg, and Malta. You can download the data via the Bold Platform, API, or bulk file delivery. Our database offers 100% worldwide company coverage, ensuring complete and accurate insights.
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