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The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers are those entities, including individual and legal persons, have significant controls over the company in focus. The offspring entities and appointments are those entities that the company in focus can influence on.

Clicking the links on parent entities or officers, and offspring entities or managed companies will put them in focus and show upstream or downstream connections. In general, ascendant entities can be found by moving toward upstream, and descendant entities are by toward downstream. In this way, progenitor entities such as grandparent companies (parents of parent), sibling companies (children of parent), partner companies (parents of child), and progeny entities such as grandchild companies (children of child) can be found easily.

Parent entities and officers 13
  • 1
    Thomas, Lara Ann Leffler
    Vice President, Tax born in July 1970
    Individual (4 offsprings)
    Officer
    2020-05-06 ~ 2020-11-02
    OF - Director → CIF 0
  • 2
    De Leon Cinco, Teresa
    Vice President And Treasurer born in January 1970
    Individual (6 offsprings)
    Officer
    2014-12-03 ~ 2018-11-04
    OF - Director → CIF 0
  • 3
    Ahwieh, Tina Eseroghene
    Manager born in November 1963
    Individual (3 offsprings)
    Officer
    2014-12-03 ~ 2015-07-08
    OF - Director → CIF 0
  • 4
    Thurlow, Nicola Patricia
    Business Executive born in July 1959
    Individual (3 offsprings)
    Officer
    2014-12-03 ~ 2015-07-08
    OF - Director → CIF 0
  • 5
    Patel, Sandip R.
    Born in August 1974
    Individual (4 offsprings)
    Officer
    2018-11-04 ~ now
    OF - Director → CIF 0
  • 6
    Hunkler, Jacqueline
    Individual (4 offsprings)
    Officer
    2014-12-03 ~ 2015-07-28
    OF - Secretary → CIF 0
  • 7
    O'shaughnessy, William Joseph
    Individual (5 offsprings)
    Officer
    2015-07-28 ~ 2023-05-22
    OF - Secretary → CIF 0
  • 8
    Mersten, Sean Daniel
    Individual (2 offsprings)
    Officer
    2023-05-22 ~ now
    OF - Secretary → CIF 0
  • 9
    Deppe, Michael Joseph
    Born in April 1965
    Individual (4 offsprings)
    Officer
    2020-11-12 ~ now
    OF - Director → CIF 0
  • 10
    Berry, Paul Robert, Dr.
    Director born in October 1953
    Individual (3 offsprings)
    Officer
    2014-12-03 ~ 2015-07-08
    OF - Director → CIF 0
  • 11
    Calamari, Stephen Andrew
    Vice President, Tax born in December 1954
    Individual (6 offsprings)
    Officer
    2014-12-03 ~ 2020-05-06
    OF - Director → CIF 0
  • 12
    3, Nj 07940, Giralda Farms, Madison, Nj, United States
    Corporate (2 offsprings)
    Person with significant control
    2016-04-06 ~ 2018-09-07
    PE - Ownership of voting rights - 75% or moreCIF 0
    PE - Right to appoint or remove directorsCIF 0
    PE - Ownership of shares – 75% or moreCIF 0
  • 13
    QUEST DIAGNOSTICS INTERNATIONAL HOLDINGS LIMITED
    11119933
    48, Chancery Lane, C/o Keystone Law, 1st Floor, London, England
    Active Corporate (8 parents, 1 offspring)
    Person with significant control
    2017-12-20 ~ now
    PE - Right to appoint or remove directorsCIF 0
    PE - Ownership of voting rights - 75% or moreCIF 0
    PE - Ownership of shares – 75% or moreCIF 0
parent relation
Company in focus

QUEST DIAGNOSTICS HOLDINGS LTD.

Period: 2014-12-03 ~ now
Company number: 09339493 10491383... (more)
Registered name
QUEST DIAGNOSTICS HOLDINGS LTD. - now 10491383... (more)
Standard Industrial Classification
64209 - Activities Of Other Holding Companies N.e.c.
Brief company account
Average Number of Employees
02024-01-01 ~ 2024-12-31
02023-01-01 ~ 2023-12-31
Administrative Expenses
-78,323 GBP2024-01-01 ~ 2024-12-31
-28,334 GBP2023-01-01 ~ 2023-12-31
Operating Profit/Loss
-12,955,877 GBP2024-01-01 ~ 2024-12-31
-28,334 GBP2023-01-01 ~ 2023-12-31
Other Interest Receivable/Similar Income (Finance Income)
35,116 GBP2024-01-01 ~ 2024-12-31
35,115 GBP2023-01-01 ~ 2023-12-31
Profit/Loss on Ordinary Activities Before Tax
-12,920,761 GBP2024-01-01 ~ 2024-12-31
6,781 GBP2023-01-01 ~ 2023-12-31
Profit/Loss
-12,910,221 GBP2024-01-01 ~ 2024-12-31
4,516 GBP2023-01-01 ~ 2023-12-31
Fixed Assets - Investments
31,917,913 GBP2024-12-31
44,795,467 GBP2023-12-31
Fixed Assets
31,917,913 GBP2024-12-31
44,795,467 GBP2023-12-31
Debtors
Current
2,689,716 GBP2024-12-31
2,644,060 GBP2023-12-31
Cash at bank and in hand
289,343 GBP2024-12-31
356,294 GBP2023-12-31
Current Assets
2,979,059 GBP2024-12-31
3,000,354 GBP2023-12-31
Net Current Assets/Liabilities
2,951,202 GBP2024-12-31
2,983,869 GBP2023-12-31
Total Assets Less Current Liabilities
34,869,115 GBP2024-12-31
47,779,336 GBP2023-12-31
Net Assets/Liabilities
34,869,115 GBP2024-12-31
47,779,336 GBP2023-12-31
Equity
Called up share capital
1 GBP2024-12-31
1 GBP2023-12-31
1 GBP2023-01-01
Retained earnings (accumulated losses)
34,869,114 GBP2024-12-31
47,779,335 GBP2023-12-31
47,774,819 GBP2023-01-01
Equity
34,869,115 GBP2024-12-31
47,779,336 GBP2023-12-31
47,774,820 GBP2023-01-01
Profit/Loss
Retained earnings (accumulated losses)
-12,910,221 GBP2024-01-01 ~ 2024-12-31
4,516 GBP2023-01-01 ~ 2023-12-31
Comprehensive Income/Expense
Retained earnings (accumulated losses)
-12,910,221 GBP2024-01-01 ~ 2024-12-31
4,516 GBP2023-01-01 ~ 2023-12-31
Comprehensive Income/Expense
-12,910,221 GBP2024-01-01 ~ 2024-12-31
4,516 GBP2023-01-01 ~ 2023-12-31
Deferred Tax Expense/Credit Relating to Origination/Reversal Timing Differences
-10,801 GBP2024-01-01 ~ 2024-12-31
Tax Expense/Credit at Applicable Tax Rate
-3,230,190 GBP2024-01-01 ~ 2024-12-31
1,288 GBP2023-01-01 ~ 2023-12-31
Investments in Subsidiaries
31,917,913 GBP2024-12-31
44,795,467 GBP2023-12-31
Amounts Owed by Group Undertakings
Current
2,447,379 GBP2024-12-31
2,447,379 GBP2023-12-31
Other Debtors
Current
24,233 GBP2024-12-31
24,494 GBP2023-12-31
Prepayments/Accrued Income
Current
207,303 GBP2024-12-31
172,187 GBP2023-12-31
Debtors - Deferred Tax Asset
Current
10,801 GBP2024-12-31
Accrued Liabilities/Deferred Income
Current
27,857 GBP2024-12-31
16,485 GBP2023-12-31
Creditors
Current
27,857 GBP2024-12-31
16,485 GBP2023-12-31
Number of Shares Issued (Fully Paid)
Class 1 ordinary share
1 shares2024-12-31
1 shares2023-12-31
Par Value of Share
Class 1 ordinary share
1.002024-01-01 ~ 2024-12-31

Related profiles found in government register
  • QUEST DIAGNOSTICS HOLDINGS LTD.
    Info
    Registered number 09339493
    1st Floor 48 Chancery Lane, London WC2A 1JF
    PRIVATE LIMITED COMPANY incorporated on 2014-12-03 (11 years 5 months). The status of the company number is Active.
    The last date of confirmation statement was made at 2025-12-08
    CIF 0
  • QUEST DIAGNOSTICS HOLDINGS LTD.
    S
    Registered number 09339493
    Keystone Law, 1st Floor, London, England
    Private Company Limited By Shares in Companies House, England And Wales
    CIF 1
  • QUEST DIAGNOSTICS HOLDINGS LIMITED
    S
    Registered number 09339493
    C/o Keystone Law, 48 Chancery Lane, London, England, WC2A 1JF
    Private Limited Company in Uk Companies House, England
    CIF 2
child relation
Offspring entities and appointments 2
  • 1
    QUEST DIAGNOSTICS BRASIL HOLDINGS LTD.
    10491383 09339493... (more)
    Keystone Law 1st Floor, 48 Chancery Lane, London, England
    Dissolved Corporate (7 parents)
    Person with significant control
    2016-11-22 ~ dissolved
    CIF 1 - Ownership of voting rights - 75% or more OE
    CIF 1 - Right to appoint or remove directors OE
    CIF 1 - Ownership of shares – 75% or more OE
  • 2
    QUEST DIAGNOSTICS SUBSIDIARY HOLDINGS LTD.
    09561965 10491383... (more)
    Keystone Law, 1st Floor 48 Chancery Lane, London, England
    Dissolved Corporate (11 parents, 2 offsprings)
    Person with significant control
    2016-04-06 ~ dissolved
    CIF 2 - Right to appoint or remove directors OE
    CIF 2 - Ownership of shares – 75% or more OE
    CIF 2 - Ownership of voting rights - 75% or more OE

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Contains public sector information retrieved at 5 April 2026 and licensed under the Open Government Licence v3.0.