Filing status
- Accounts due
- 26 September 2027
- Last accounts
- 31 December 2025
- Conf. stmt due
- 22 December 2026
- Last conf. stmt
- 8 December 2025
Quest Diagnostics Holdings Ltd.
- Incorporated
- 3 December 2014 (11 years)
- Industry
- Activities of other holding companies n.e.c. (64209)
- Directors
- Accounts type
- Full
- Region
- Greater London
- Address
- 1st Floor48 Chancery LaneLondonWC2A 1JF
Officers 3 active
Officer details are public data from the Companies House register.
Mersten, Sean Daniel
Secretary · Appointed 22 May 2023
Director · Appointed 12 November 2020
American
Born April 1965 (61)
Director · Appointed 4 November 2018
American
Born August 1974 (52)
Officer history (8 former)
22 May 2023
Resigned O'Shaughnessy, William Joseph as Secretary
22 May 2023
Appointed Mersten, Sean Daniel as Secretary
12 November 2020
2 November 2020
6 May 2020
6 May 2020
4 November 2018
4 November 2018
28 July 2015
Resigned Hunkler, Jacqueline as Secretary
28 July 2015
Appointed O'Shaughnessy, William Joseph as Secretary
8 July 2015
Resigned Ahwieh, Tina Eseroghene as Director
8 July 2015
Resigned Thurlow, Nicola Patricia as Director
8 July 2015
Resigned Berry, Paul Robert, Dr. as Director
3 December 2014
Appointed Thurlow, Nicola Patricia as Director
3 December 2014
Appointed Hunkler, Jacqueline as Secretary
3 December 2014
3 December 2014
Appointed Berry, Paul Robert, Dr. as Director
3 December 2014
3 December 2014
Appointed Ahwieh, Tina Eseroghene as Director
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Corporate entity · Notified 20 December 2017
Owns 75–100% of shares
Holds 75–100% of voting rights
Right to appoint and remove directors
Limited Company
Reg. no. 11119933
Former controllers (1)
7 September 2018
Ceased Quest Diagnostics Incorporated — Owns 75–100% of shares
Financials
Figures from 2024 accounts. Newer accounts, made up to 31 December 2025, are filed but not read yet. See them on Companies House
- Net Assets
- £34,869,115
- Cash
- £289,343
- Profit Before Tax
- (£12,920,761)
- Debt Ratio
- 0%
- Current Ratio
- 106.9x
- Return on Equity
- -37%
Trend
Net Assets
Balance sheet detail
| 2024 | 2023 | |
|---|---|---|
| Fixed Assets | £31,917,913 | £44,795,467 |
| Current Assets | £2,979,059 | £3,000,354 |
| Cash | £289,343 | £356,294 |
| Creditors (< 1 year) | £27,857 | £16,485 |
| Net Current Assets | £2,951,202 | £2,983,869 |
| Net Assets | £34,869,115 | £47,779,336 |
| Shareholder Funds | £34,869,115 | £47,779,336 |
Filings 66
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 1 October 2026 | Full accounts | 31 December 2025 | ||
| 23 March 2026 | Full accounts | 31 December 2024 | ||
| 29 December 2025 | Current accounting period shortened | |||
| 10 December 2025 | Confirmation statement with no updates | 8 December 2025 | ||
| 10 December 2024 | Confirmation statement with no updates | 8 December 2024 |
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