QUANTUM SYSTEMES LTD
Company number NI685508 · Active · Carrickfergus BT38 7PR
QUANTUM SYSTEMES LTD is an active private limited company (company number NI685508) incorporated on 4 February 2022, registered in Carrickfergus. Its registered activity is bookkeeping activities (SIC 69202). Latest micro accounts cover the period ending 28 February 2026, showing net assets of £40k, with 0 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets rose 225% on the prior period (−£32k). Across the last 3 periods on record the net-asset trend is volatile.
By net assets it sits in the top quarter of 81 comparable companies in Belfast (median £4,748, upper quartile £23k).
Key dates
- Incorporated
- 4 February 2022
- Next accounts due
- 28 November 2027 — in 406 days
- Confirmation statement due
- 18 February 2027 — in 123 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
Activity
- SIC 69202
- Bookkeeping activities
- SIC 80300
- Investigation activities
- Accounts type
- Micro Entity
- Size band
- Micro (Companies Act thresholds)
Financials — 3 periods on record, latest ending 28 February 2026
| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 28 February 2026 | £40k | — | — | £750 | — | — | 0 |
| 28 February 2025 | −£32k | — | — | £734 | — | — | 0 |
| 29 February 2024 | −£22k | — | — | £600 | — | — | — |
- Current ratio
- 0.71 — current liabilities exceed current assets
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing; micro-entity accounts contain no profit and loss account.
Firmoscan score: 69/100 (grade B)
- +10 Positive net assets — Net assets £40,397 at 2026-02-28
- +8 Net assets growing — +225.1% vs prior period
- -8 Current liabilities exceed current assets — Current ratio 0.71
- +5 Multi-year filing history — 3 periods on record
- +4 Past first filings — Incorporated 2022-02-04
A transparent, rules-based score from filed data only: every point lists its evidence. It is not a credit rating or advice.
Ownership and control
- Mr Declan Mcguinness — owns 75–100% of shares · since 8 August 2026
- Mr Keith Jamieson — owns 75–100% of shares · since 4 February 2022 · ceased 8 August 2026
Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents.
Similar companies in Belfast
Same activity (bookkeeping activities), closest in incorporation date.
- HYDRII SOLUTIONS LIMITED — Belfast, inc. Nov 2021
- PARTRIDGE BUSINESS SOLUTIONS LTD — Craigavon, inc. Oct 2021
- KEEP BOOKS LIMITED — Dungannon, inc. Sept 2021
- 15 NORTH MANAGEMENT LIMITED — Belfast, inc. Jun 2022
- DBO ACCOUNTS LIMITED — Newtownards, inc. Aug 2021
- SPITTAL HILL ESTATE LIMITED — Coleraine, inc. Jul 2021
Reminders for QUANTUM SYSTEMES LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.