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List of GSK subsidiaries

Verified insights into GSK’s global corporate structure and subsidiaries.

GSK plc is a multinational healthcare company headquartered in Brentford, United Kingdom. Founded in 2000 through a merger, GSK now operates a vast and complex global network with over 722 subsidiaries in multiple countries. This ownership data comes from CompanyData.com’s verified corporate hierarchy database, which covers more than 380 million companies worldwide.

Geographic distribution of GSK’s subsidiaries

GSK has 722 subsidiaries across 62 countries, with 116 in the United Kingdom (16%), 278 in the United States (38.5%), and 20 in Spain (2.8%). These countries are key to GSK’s operations, reflecting its strong presence in pharmaceuticals, vaccines, and consumer healthcare markets worldwide.

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  • Global ownership data

  • Download subsidiary lists

  • Structured hierarchies

  • Contact and email data

Top Subsidiaries and Companies Owned by GSK

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
Glaxosmithkline LLC
USA
Wilmington
925 S Kerr Ave
N/A
New Hanover
28403
N/A
N/A
$0
4
722
N/A
******@*******.***
0165916957
2
Tesaro Securities CORPORATION
USA
Waltham
1000 Winter St
N/A
Middlesex
02451
tesarobio.com
2012
$845,867
652
Corporation
722
461496542
********@*****.***
33*****00
0227952983
3
Glaxosmithkline Services INC.
USA
Durham
5 Moore Dr
N/A
Durham
27709
us.gsk.com
1998
$41,007,303
236
Corporation
722
2962091
********@****.***
91*****00
0946870712
4
Affinivax, INC.
USA
Cambridge
301 Binney St Ste 302
N/A
Middlesex
02142
affinivax.com
2022
$48,237,659
167
Corporation
722
5460125
***********@***.***
61*****65
0190666312
5
Barrier Therapeutics, INC.
USA
Duluth
3095 Satellite Blvd
N/A
Gwinnett
30096
N/A
2008
$1,773,996
130
Corporation
722
223828030
*********@******.***
0223153378
6
Glaxosmithkline LLC
USA
Minneapolis
1650 W 82nd St Ste 1260
N/A
Hennepin
55431
N/A
N/A
$0
75
722
N/A
******@***.***
0729174493
7
Glaxosmithkline LLC
USA
East Durham
3169 Route 145
N/A
Greene
12423
gsk.com
N/A
$0
71
722
N/A
************@********.***
51*****01
0235103170
8
Galvani Bioelectronics INC.
USA
Durham
5 Moore Dr
N/A
Durham
27709
galvani.bio
2016
$707,156
60
Corporation
722
5964447
***********@******.***
91*****92
0192029810
9
Glaxosmithkline LLC
USA
Memphis
2149 Harbor Ave
N/A
Shelby
38113
gsk.com
N/A
$0
52
722
N/A
**********@***.***
90*****72
0189688622
10
Glaxosmithkline LLC
USA
El Paso
1701 Hawkins Blvd
N/A
El Paso
79925
gsk.com
N/A
$0
27
722
N/A
********@***.***
61*****46
0158300287
11
Glaxosmithkline LLC
USA
Brookhaven
3003 Summit Blvd Ste 1400
N/A
Muscogee
30319
N/A
N/A
$0
27
722
N/A
******@****.***
0279668016
12
Glaxosmithkline LLC
USA
Danville
3093 Griffon St E
N/A
Contra Costa
94506
N/A
N/A
$0
26
722
N/A
********@*****.***
0153919362
13
Glaxosmithkline LLC
USA
Farmington Hills
33786 Yorkridge St
N/A
Oakland
48331
gsk.com
N/A
$0
26
722
N/A
**********@******.***
24*****55
0123020945
14
Glaxosmithkline LLC
USA
Monaca
101 Woodmont Dr
N/A
Beaver
15061
gsk.com
N/A
$0
26
722
N/A
*********@*****.***
0137833829
15
Glaxosmithkline LLC
USA
Montgomery Village
20115 Torrey Pond Pl
N/A
Montgomery
20886
N/A
N/A
$0
26
722
N/A
******@*****.***
0172152453
16
Cns, INC.
USA
Syracuse
124 Ormsby Dr
N/A
Onondaga
13219
coloradospeedway.com
N/A
$0
24
722
N/A
********@********.***
31*****76
0917270322
17
Principia Pharmaceutical, CORP
USA
Rockville
9410 Key West Ave
N/A
Montgomery
20850
tevausa.com
2000
$1,432,861
14
Corporation
722
N/A
******@***.***
30*****50
0210766978
18
Glaxosmithkline LLC
USA
Philadelphia
1500 Spring Garden St
N/A
Philadelphia
19130
gsk.com
N/A
$0
10
722
N/A
**********@********.***
21*****00
0244544012
19
Glaxosmithkline LLC
USA
Downers Grove
3510 Hobson Rd
N/A
Dupage
60517
N/A
N/A
$0
9
722
N/A
******@******.***
0258604919
20
Glaxosmithkline LLC
USA
Carmel
205 E Carmel Dr Ste E
N/A
St. Joseph
46032
N/A
N/A
$0
9
722
N/A
********@********.***
0277236228
21
Glaxosmithkline LLC
USA
Mount Vernon
101 W Patterson St
N/A
Lawrence
65712
N/A
N/A
$0
9
722
N/A
***********@***.***
0255182502
22
Glaxosmithkline LLC
USA
Pittsburgh
5547 Bartlett St
N/A
Allegheny
15217
us.gsk.com
N/A
$0
8
722
N/A
************@********.***
41*****00
0138488684
23
Glaxosmithkline LLC
USA
Franklin
5011 Penbrook Dr
N/A
Williamson
37069
us.gsk.com
N/A
$0
6
722
N/A
************@***.***
61*****10
0138981125
24
Glaxosmithkline LLC
USA
Oakdale
290 Whittengale Rd
N/A
Luzerne
15071
N/A
N/A
$0
6
722
N/A
***********@********.***
0134934154
25
Glaxosmithkline LLC
USA
Buffalo
17 Mahogany Dr
N/A
Erie
14221
us.gsk.com
N/A
$0
6
722
N/A
********@****.***
71*****79
0136531065
26
Glaxosmithkline LLC
USA
Germantown
8605 Woodlane Dr
N/A
Cheatham
38138
us.gsk.com
N/A
$0
6
722
N/A
******@******.***
90*****34
0121034035

Companies by Employee Size

  • 0 or Unknown 182
  • 1 to 100 433
  • 101 to 499 53
  • 500 to 999 26
  • 1.000 to 4.999 25
  • 5.000 to 9.999 3

Companies by Revenue Size (in USD)

  • 0 or Unknown 402
  • 1 to 100.000 3
  • 100.001 to 499.999 28
  • 500.000 to 999.999 28
  • 1.000.000 to 4.999.999 62
  • 5.000.000 to 9.999.999 36
  • 10.000.000 to 49.999.999 57
  • 50.000.000 to 99.999.999 30
  • 100.000.000 to 499.999.999 39
  • 500.000.000 to 999.999.999 12
  • 1.000.000.000 or more 25
Download Data

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Explore GSK's Global Corporate Structure

GSK’s global parent-subsidiary network is part of over 41 million corporate hierarchies tracked in our company ownership database. It details how GSK is organized worldwide, showing verified information on parent companies and subsidiaries across over 70 countries. Learn how our data helps you understand GSK’s reach and request a tailored data sample.

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GSK Company Facts

Where is GSK headquartered?

GSK is headquartered in London, United Kingdom.

How many subsidiaries does GSK own?

GSK owns about 722 companies worldwide in more than 60 countries.

Is GSK a public company?

Yes, GSK plc is publicly listed on the London Stock Exchange.

How many employees work for GSK?

GSK employs tens of thousands of people globally.

Which countries have most GSK subsidiaries?

The United States (278), United Kingdom (116), China (14), and India (9) have the highest numbers of GSK subsidiaries.

Corporate family tree

Why Ownership Structure Data Is Important

Knowing who owns a company is essential to understanding how businesses link and function worldwide. Our corporate hierarchy data allows you to follow connections between parent companies, subsidiaries, and shareholders, revealing control, organization, and potential risks within any global corporate group. Whether you are investigating GSK or another multinational, these insights aid compliance, market research, and better CRM management. With verified ownership records covering over 380 million companies around the globe, CompanyData.com gives you a clear view of corporate ownership across industries and countries.

How We Define Global, National, and Local Headquarters

At CompanyData.com, every company profile such as GSK is organized using our three-tier hierarchy model: Global, National, and Local headquarters. This structure clarifies how each entity fits inside the larger corporate group.

The three levels explained

  • Global Headquarter — GSK plc acts as the global headquarter for the GSK Group, based in London, United Kingdom. It holds the highest level in the group hierarchy.
  • National Headquarters — Country-level companies manage local business and report directly to the global parent. For example, GSK USA Inc., GSK Canada Ltd., and GSK India Ltd.
  • Local Headquarters — Regional subsidiaries handle operations like sales, marketing, manufacturing, and regulatory compliance within their own markets.

Each company gets a unique ID, enabling you to connect subsidiaries to their parent companies, trace ownership paths, and merge data into your systems.

How we show control

Control is based on ownership stakes. When a company holds more than 50% of another, we mark it as a controlled subsidiary. Our data highlights these majority-owned relationships to clearly represent corporate structures. This method gives a transparent view of complex groups like GSK’s and can be applied to any multinational business.

Why this is useful

This hierarchy helps identify who truly controls the GSK Group, simplifies compliance checks, and supports mergers, acquisitions, and risk management. By mapping each entity with verified ownership data, CompanyData.com lets you explore GSK’s corporate setup with confidence. With over 41 million companies linked in 200 countries and regions, our platform offers clarity for teams working with multinational groups.

 

GSK

Who This Solution Is For

CompanyData.com supports global organizations that need verified insights into corporate ownership structures, from CRM enrichment and compliance workflows to market intelligence and analytics. We provide free evaluation samples; larger data samples (for example, up to 1,000 companies) are available to qualified corporate buyers with a defined use case and an active company website. If your primary need is contact or lead lists, please visit our Company Data Platform instead.

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GSK ownership & subsidiary data – FAQs

You can access GSK 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 GSK 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, you can access detailed, verified data on GSK plc and all its subsidiaries, updated daily. This includes company names, registration details, locations, industry classifications, financial indicators, and key contacts. 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.

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