List of National Grid subsidiaries

Verified insights into National Grid’s global corporate structure and subsidiaries.

Q: What is the price of this company data from National Grid?

The price of our National Grid company data varies based on your chosen details and delivery method. Whether you need a list of subsidiaries or a full dataset via API or bulk files, we offer flexible pricing to suit your needs. You can request a free quote and record count within 24 hours — our team will provide transparent pricing and a free sample of 10 company contacts. At CompanyData.com, you only pay for the verified global data you need.

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At CompanyData.com, we offer secure and flexible payment options for purchasing company data, including credit cards, bank transfer, and PayPal. All payments are processed safely, and invoices are provided. For larger or ongoing access, we also support subscription billing and custom invoicing. Need a special arrangement? Contact our sales team — we’re happy to help.

Q: What information is available about National Grid?

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.

Q: Where does your company data come from?

At CompanyData.com, our data comes from verified global business sources to ensure accuracy and full coverage. We combine official registers, financial filings, LEI records, trusted partners, and verified company websites. All data is cross-checked and validated by our experts, ensuring it’s accurate, up-to-date, and GDPR-compliant.

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.

Location spread of National Grid’s subsidiaries

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.

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Top Subsidiaries and Companies Owned by National Grid

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	Company Name	Country	City	Address 1	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
1	National Grid USA Service Company, INC.	USA	Jamaica	8967 162nd St	Queens	11432	nationalgridus.*****	N/A	$0	249	N/A	N/A	N/A
2	National Grid USA Service Company, INC.	USA	Holtsville	180a Morris Ave	Suffolk	11742	nationalgridus.*****	N/A	$0	207	N/A	N/A	N/A
3	Goldenrod Wind Farm, LLC	USA	Wilmington Manor	1209 N Orange St	New Castle	19801	N/A	2020	$0	0	N/A	N/A	N/A
4	Mustang Ridge Wind Farm, LLC	USA	Wilmington Manor	1209 N Orange St	New Castle	19801	N/A	N/A	$0	0	N/A	N/A	7176182
5	Blaze Solar, LLC	USA	Wilmington Manor	1209 N Orange St	New Castle	19801	N/A	N/A	$0	0	N/A	N/A	7357290
6	Knox Solar, LLC	USA	Bloomington	8400 Normandale Lake Blvd Ste 1200	Hennepin	55437	N/A	2020	$0	0	N/A	N/A	N/A
7	National Grid Development Holdings CORP.	USA	Brooklyn	1 Metrotech Ctr	Kings	11201	nationalgrid.*****	2009	$11,890,004	300	N/A	N/A	N/A
8	National Grid USA Service Company, INC.	USA	Syracuse	7496 Round Pond Rd	Onondaga	13212	nationalgridus.*****	N/A	$0	290	N/A	N/A	N/A
9	National Grid USA Service Company, INC.	USA	Hicksville	100 E Old Country Rd	Nassau	11801	N/A	N/A	$0	166	N/A	N/A	N/A
10	Niagara Mohawk Power CORPORATION	USA	Malone	139 Finney Blvd	Franklin	12953	N/A	N/A	$0	103	N/A	N/A	N/A
11	National Grid	USA	Brooklyn	370 Vandervoort Ave	Kings	11211	N/A	N/A	$0	22	N/A	N/A	N/A
12	National Grid Electric Services LLC	USA	Brooklyn	1 Metrotech Ctr	Kings	11201	nationalgrid.*****	2009	$4,078,147	20	N/A	N/A	2257282
13	Nantucket Electric Company	USA	Hopedale	245 S Main St	Worcester	01747	N/A	N/A	$0	7	N/A	N/A	N/A
14	Boston Gas Company	USA	Salem	20 Pierce Ave	Essex	01970	N/A	N/A	$0	6	N/A	N/A	N/A
15	Coneflower Solar, LLC	USA	Philadelphia	12 W Willow Grove Ave	Philadelphia	19118	N/A	2020	$315,337	5	N/A	N/A	4180322
16	Fayette Solar, LLC	USA	Minneapolis	8400 Normandale Lake Blvd Ste 1200	Hennepin	55437	N/A	2018	$1,499,917	5	N/A	N/A	1702876
17	National Grid Port Jefferson Energy Centre LLC	USA	Port Jefferson	North End Beach St	Suffolk	11777	N/A	2002	$1,010,843	5	N/A	N/A	N/A
18	Sherco Solar 2, LLC	USA	Minneapolis	8400 Normandale Lake Blvd Ste 1200	Hennepin	55437	N/A	2020	$259,227	5	N/A	N/A	1164353800021
19	Autauga Solar, LLC	USA	Minneapolis	8400 Normandale Lake Blvd Ste 12	Hennepin	55437	N/A	2020	$342,182	4	N/A	N/A	7921215
20	Fort Solar, LLC	USA	Bloomington	8400 Normandale Lake Blvd Ste 1200	Hennepin	55437	N/A	2024	$1,033,098	1	N/A	N/A	7921231
21	Pasture Peaks Wind Farm, LLC	USA	Bloomington	8408 Normandale Lake Blvd Ste 1200	Hennepin	55437	N/A	2024	$1,052,830	1	N/A	N/A	N/A
22	National Grid Partners INC.	USA	Brooklyn	119 Green St	Kings	11222	nationalgridus.*****	N/A	$0	1	N/A	N/A	N/A
23	Hale County Solar, LLC	USA	Wilmington Manor	1209 N Orange St	New Castle	19801	N/A	N/A	$0	0	N/A	N/A	3714918
24	Hill River Solar, LLC	USA	Wilmington Manor	1209 N Orange St	New Castle	19801	N/A	2020	$0	0	N/A	N/A	N/A
25	Jack Rabbit Wind, LLC	USA	Wilmington Manor	1209 N Orange St	New Castle	19801	N/A	2016	$0	0	N/A	N/A	6223208
26	Maverick Wind Farm, LLC	USA	Wilmington Manor	1209 N Orange St	New Castle	19801	N/A	2018	$0	0	N/A	N/A	7176191

Companies by Employee Size

1-490
5-941
10-1932
20-4928
50-9924
100-19944
200-49930
500-99911
1.000-4.9999
5.000-9.9991
0 or Unknown263

Companies by Revenue Size (in USD)

0 or Unknown410
1 to 100.0001
100.001 to 499.99935
500.000 to 999.99914
1.000.000.000 or more12
1.000.000 to 4.999.99955
5.000.000 to 9.999.99911
10.000.000 to 49.999.99912
50.000.000 to 99.999.9997
100.000.000 to 499.999.99911
500.000.000 to 999.999.9995

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Discover National Grid's Global Corporate Structure

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.

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National Grid Company Facts

Where is National Grid headquartered?

National Grid is headquartered in London, United Kingdom.

How many subsidiaries does National Grid have?

National Grid owns 574 subsidiaries across 6 countries.

Who owns National Grid?

National Grid plc is publicly traded with no single majority shareholder.

Is National Grid a UK company?

Yes, National Grid plc is incorporated in the UK (company no. 0331397083).

How many people work for National Grid?

National Grid employs approximately 20,000 people worldwide.

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Why Ownership Structure Data Matters

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.

How We Map Global, National, and Local Headquarters

At CompanyData.com, every company profile – like National Grid – is mapped using our three-tier hierarchy system: Global, National, and Local headquarters. This method shows how each entity fits into its broader corporate group.

Our Three Levels Explained

Global Headquarters — National Grid plc acts as the global headquarters for the National Grid group, with its main office based in London, United Kingdom. It oversees all other companies in the group.
National Headquarters — Country-level entities manage business operations locally and report to the global parent. Examples include National Grid USA, National Grid UK, and National Grid [Country] subsidiaries.
Local Headquarters — Regional branches handle operational sites, customer services, and regulatory compliance within their specific markets.

Each entity has a unique ID, allowing you to link subsidiaries to parent firms, trace ownership, and integrate data into your systems.

How Ownership and Control Are Shown

Control is based on ownership percentage. When a company owns more than 50% of another, we classify it as a controlled subsidiary. Our data focuses on these majority-owned relationships to clearly map corporate hierarchies. This system gives a transparent view of complex ownership networks like National Grid’s and can be applied to any global group.

Why This Is Important

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.

How We Map Global, National, and Local Headquarters

Who This Solution Is For

CompanyData.com supports global businesses that need accurate details on corporate ownership and subsidiary structures, for uses like CRM enrichment, compliance checks, market research, and business analytics. We offer free sample data; larger samples (for example, up to 1,000 companies) are available for qualified companies with a clear use case and an active website. If you mainly want contact or lead lists, please visit our Company Data Platform.

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National Grid ownership & subsidiary data – FAQs

You can access National Grid 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 from any organization or industry, CompanyData.com provides complete global coverage. You’ll get accurate, verified business information across every country and sector. Simply tell us what you’re looking for, and our experts will prepare a custom dataset that fits your goals. Within 24 hours, you’ll receive a free quote, record count, and sample data. Once approved, we deliver your data fast — via Excel, API, bulk file, or directly in the Bold Platform.

The price of our National Grid company data varies based on your chosen details and delivery method. Whether you need a list of subsidiaries or a full dataset via API or bulk files, we offer flexible pricing to suit your needs. You can request a free quote and record count within 24 hours — our team will provide transparent pricing and a free sample of 10 company contacts. At CompanyData.com, you only pay for the verified global data you need.

At CompanyData.com, we offer secure and flexible payment options for purchasing company data, including credit cards, bank transfer, and PayPal. All payments are processed safely, and invoices are provided. For larger or ongoing access, we also support subscription billing and custom invoicing. Need a special arrangement? Contact our sales team — we’re happy to help.

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.

At CompanyData.com, our data comes from verified global business sources to ensure accuracy and full coverage. We combine official registers, financial filings, LEI records, trusted partners, and verified company websites. All data is cross-checked and validated by our experts, ensuring it’s accurate, up-to-date, and GDPR-compliant.

Get a Free Quote and Sample

Tell us your target group, and we’ll send you a free quote and a tailored company ownership dataset — sample included. Call +31 20 705 236 or email sales@companydata.com. Ready to order? Simply reply to the quote, and CompanyData.com delivers your dataset in CSV or Excel within 24 hours.

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