Filing status
- Accounts due
- 30 September 2027
- Last accounts
- 31 December 2025
- Conf. stmt due
- 26 June 2027
- Last conf. stmt
- 12 June 2026
QLM Technology Ltd
- Incorporated
- 15 March 2017 (9 years)
- Industry
- Other professional, scientific and technical activities n.e.c. (74909)
- Directors
- Debashis Gupta
- Owned by
- Accounts type
- Small
- Region
- Wales
- Address
- Quest HouseSt Mellons Business ParkCardiffCF3 0EY
Charges
- Total
- 4
- Outstanding
- 1
- Part satisfied
- 0
- Satisfied
- 3
Officers 4 active
Officer details are public data from the Companies House register.
Director · Appointed 5 December 2024
British
Born February 1984 (42)
Gupta, Debashis
Director · Appointed 3 August 2022
Indian
Born February 1969 (57)
Director · Appointed 1 June 2021
British,American
Born March 1942 (84)
Mccallion, John
Director · Appointed 1 June 2021
British
Born November 1957
Officer history (7 former)
9 October 2026
10 January 2026
10 January 2026
Resigned Reed, Murray Keith, Dr as Director
5 December 2024
5 December 2024
Resigned Ai, Xiao as Director
3 August 2022
Appointed Gupta, Debashis as Director
3 August 2022
3 August 2022
Resigned Nitin, Saurabh as Director
1 July 2021
Appointed Nitin, Saurabh as Director
1 June 2021
Resigned Andersson, Yuri as Director
1 June 2021
Appointed Mccallion, John as Director
1 June 2021
1 June 2021
Resigned Rarity, John, Professor as Director
26 May 2020
Appointed Reed, Murray Keith, Dr as Director
17 October 2018
24 August 2017
Appointed Rarity, John, Professor as Director
24 August 2017
Appointed Andersson, Yuri as Director
15 March 2017
Appointed Ai, Xiao as Director
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Corporate entity · Notified 3 August 2022
Owns 25–50% of shares
Holds 25–50% of voting rights
Private Company Limited By Shares
Reg. no. 04157867
Former controllers (1)
1 June 2021
Ceased Xiao Ai — Owns 75–100% of shares
Group structure 18 shown
Ownership group derived from the Companies House PSC register
SLB UK II Limited Owns 75–100% of shares
Schlumberger Common Investment Fund Limited Owns 75–100% of shares
Schlumberger Oilfield UK Limited Owns 75–100% of shares
Bisn Holdings Limited Owns 25–50% of shares
Cameron Petroleum (UK) Limited Owns 75–100% of shares
Champion Technologies Limited Owns 75–100% of shares
Onesubsea Investments UK Limited Owns 50–75% of shares
QLM Technology Ltd This company Owns 25–50% of shares
Resman Technology UK Ltd Owns 75–100% of shares
Rmspumptools Limited Owns 75–100% of shares
Schlumberger Cambridge Research Limited Owns 75–100% of shares
Sensia UK Ltd. Owns 75–100% of shares
Westerngeco Limited Owns 75–100% of shares
Schlumberger Trust Company Limited Owns 75–100% of shares
Schlumberger UK Holdings Limited Owns 75–100% of shares
Financials
Figures from 2021 accounts. Newer accounts, made up to 31 December 2025, are filed but not read yet. See them on Companies House
- Net Assets
- £2,120,840
- up £1,847,457 (676%)
- Cash
- £1,798,785
- up £1,750,867 (3654%)
- Employees
- 7
- up 4 (133%)
- Debt Ratio
- 6%
- Current Ratio
- 49.6x
Trend
Net Assets
Balance sheet detail
| 2021 | 2020 | |
|---|---|---|
| Fixed Assets | £232,681 | £231,124 |
| Current Assets | £2,022,474 | £100,841 |
| Debtors | £223,689 | £52,923 |
| Cash | £1,798,785 | £47,918 |
| Creditors (< 1 year) | £40,748 | £26,082 |
| Creditors (> 1 year) | £93,567 | £32,500 |
| Net Current Assets | £1,981,726 | £74,759 |
| Net Assets | £2,120,840 | £273,383 |
| Shareholder Funds | £2,120,840 | £273,383 |
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 27 August 2026 | Accounts for a small company | 31 December 2025 |
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