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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.

Jump to: Company in focus, Offsprings
Parent entities and officers 13
  • 1
    Calamari, Stephen Andrew
    Vice President, Tax born in December 1954
    Individual (6 offsprings)
    Officer
    2014-12-03 ~ 2020-05-06
    OF - Director → CIF 0
  • 2
    O'shaughnessy, William Joseph
    Individual (5 offsprings)
    Officer
    2015-07-28 ~ 2023-05-22
    OF - Secretary → CIF 0
  • 3
    Deppe, Michael Joseph
    Born in April 1965
    Individual (4 offsprings)
    Officer
    2020-11-12 ~ now
    OF - Director → CIF 0
  • 4
    Berry, Paul Robert, Dr.
    Director born in October 1953
    Individual (3 offsprings)
    Officer
    2014-12-03 ~ 2015-07-08
    OF - Director → CIF 0
  • 5
    Hunkler, Jacqueline
    Individual (4 offsprings)
    Officer
    2014-12-03 ~ 2015-07-28
    OF - Secretary → CIF 0
  • 6
    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
  • 7
    Mersten, Sean Daniel
    Individual (2 offsprings)
    Officer
    2023-05-22 ~ now
    OF - Secretary → CIF 0
  • 8
    Patel, Sandip R.
    Born in August 1974
    Individual (4 offsprings)
    Officer
    2018-11-04 ~ now
    OF - Director → CIF 0
  • 9
    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
  • 10
    Thurlow, Nicola Patricia
    Business Executive born in July 1959
    Individual (3 offsprings)
    Officer
    2014-12-03 ~ 2015-07-08
    OF - Director → CIF 0
  • 11
    Ahwieh, Tina Eseroghene
    Manager born in November 1963
    Individual (3 offsprings)
    Officer
    2014-12-03 ~ 2015-07-08
    OF - Director → CIF 0
  • 12
    QUEST DIAGNOSTICS INTERNATIONAL HOLDINGS LIMITED
    11119933
    48, Chancery Lane, C/o Keystone Law, 1st Floor, London, England
    Active Corporate (8 parents, 1 offspring)
    Equity (Company account)
    189,140,770 GBP2023-12-31
    Person with significant control
    2017-12-20 ~ now
    PE - Ownership of shares – 75% or more → CIF 0
    PE - Right to appoint or remove directors → CIF 0
    PE - Ownership of voting rights - 75% or more → CIF 0
  • 13
    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 shares – 75% or more → CIF 0
    PE - Ownership of voting rights - 75% or more → CIF 0
    PE - Right to appoint or remove directors → CIF 0
parent relation
Company in focus

QUEST DIAGNOSTICS HOLDINGS LTD.

Company number: 09339493
Registered name
QUEST DIAGNOSTICS HOLDINGS LTD. - now
Standard Industrial Classification
64209 - Activities Of Other Holding Companies N.e.c.
Brief company account
Average Number of Employees
02023-01-01 ~ 2023-12-31
22022-01-01 ~ 2022-12-31
Administrative Expenses
-28,334 GBP2023-01-01 ~ 2023-12-31
-52,187 GBP2022-01-01 ~ 2022-12-31
Operating Profit/Loss
-28,334 GBP2023-01-01 ~ 2023-12-31
-3,846,090 GBP2022-01-01 ~ 2022-12-31
Other Interest Receivable/Similar Income (Finance Income)
35,115 GBP2023-01-01 ~ 2023-12-31
35,631 GBP2022-01-01 ~ 2022-12-31
Profit/Loss on Ordinary Activities Before Tax
6,781 GBP2023-01-01 ~ 2023-12-31
-3,810,459 GBP2022-01-01 ~ 2022-12-31
Profit/Loss
4,516 GBP2023-01-01 ~ 2023-12-31
-3,799,946 GBP2022-01-01 ~ 2022-12-31
Fixed Assets - Investments
44,795,467 GBP2023-12-31
44,795,467 GBP2022-12-31
Fixed Assets
44,795,467 GBP2023-12-31
44,795,467 GBP2022-12-31
Debtors
Current
2,644,060 GBP2023-12-31
2,605,672 GBP2022-12-31
Cash at bank and in hand
356,294 GBP2023-12-31
375,860 GBP2022-12-31
Current Assets
3,000,354 GBP2023-12-31
2,981,532 GBP2022-12-31
Creditors
Current, Amounts falling due within one year
-2,179 GBP2022-12-31
Net Current Assets/Liabilities
2,983,869 GBP2023-12-31
2,979,353 GBP2022-12-31
Total Assets Less Current Liabilities
47,779,336 GBP2023-12-31
47,774,820 GBP2022-12-31
Net Assets/Liabilities
47,779,336 GBP2023-12-31
47,774,820 GBP2022-12-31
Equity
Called up share capital
1 GBP2023-12-31
1 GBP2022-12-31
1 GBP2022-01-01
Retained earnings (accumulated losses)
47,779,335 GBP2023-12-31
47,774,819 GBP2022-12-31
51,574,765 GBP2022-01-01
Equity
47,779,336 GBP2023-12-31
47,774,820 GBP2022-12-31
51,574,766 GBP2022-01-01
Profit/Loss
Retained earnings (accumulated losses)
4,516 GBP2023-01-01 ~ 2023-12-31
-3,799,946 GBP2022-01-01 ~ 2022-12-31
Comprehensive Income/Expense
Retained earnings (accumulated losses)
4,516 GBP2023-01-01 ~ 2023-12-31
-3,799,946 GBP2022-01-01 ~ 2022-12-31
Comprehensive Income/Expense
4,516 GBP2023-01-01 ~ 2023-12-31
-3,799,946 GBP2022-01-01 ~ 2022-12-31
Tax Expense/Credit at Applicable Tax Rate
1,288 GBP2023-01-01 ~ 2023-12-31
-723,987 GBP2022-01-01 ~ 2022-12-31
Investments in Subsidiaries
44,795,467 GBP2023-12-31
44,795,467 GBP2022-12-31
Amounts Owed by Group Undertakings
Current
2,447,379 GBP2023-12-31
2,447,379 GBP2022-12-31
Other Debtors
Current
24,494 GBP2023-12-31
21,222 GBP2022-12-31
Prepayments/Accrued Income
Current
172,187 GBP2023-12-31
137,071 GBP2022-12-31
Accrued Liabilities/Deferred Income
Current
16,485 GBP2023-12-31
2,179 GBP2022-12-31
Creditors
Current
16,485 GBP2023-12-31
2,179 GBP2022-12-31
Number of Shares Issued (Fully Paid)
Class 1 ordinary share
1 shares2023-12-31
1 shares2022-12-31
Par Value of Share
Class 1 ordinary share
1.002023-01-01 ~ 2023-12-31
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 3 months). The company status is Active.
    The last date of confirmation statement was made at 2024-12-08
    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
    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
    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 - Ownership of shares – 75% or more → OE
    CIF 2 - Ownership of voting rights - 75% or more → OE
    CIF 2 - Right to appoint or remove directors → OE

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Contains public sector information retrieved at 9 February 2026 and licensed under the Open Government Licence v3.0.