£622
−81%vs Sept 2024Active15142291Private limited companyLincoln
QUANTUMWAVE SYSTEMS LIMITED
Significant control: Serhii Tsapko (75–100%)
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
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01
Summary
QUANTUMWAVE SYSTEMS LIMITED is an active private limited company (company number 15142291) incorporated on 15 September 2023, registered in Lincoln. Its registered activity is information technology consultancy activities (SIC 62020). Latest micro accounts cover the period ending 30 September 2025, showing net assets of £622, with 1 employee on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets fell 81% on the prior period (£3,215).
Peer position · net assets
By net assets it sits in the lower half of 11,548 comparable companies in Other (median £6,624, upper quartile £41k).
02
Ownership and control
- Mr Serhii Tsapko
- owns 75–100% of shares
- owns 75–100% of shares
- owns 75–100% of shares
- holds 75–100% of voting rights
- holds 75–100% of voting rights
- can appoint or remove directors
- can appoint or remove directors
- can appoint or remove directors
- Mr Simon Thomas Harry Tankel
- owns 75–100% of shares
- holds 75–100% of voting rights
- can appoint or remove directors
Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents. Directors and secretaries: see the officers list at Companies House.
03
Key dates
- Incorporated
- 15 September 20233 yrs ago
- Next accounts due
- 30 June 2027in 250 days
- Confirmation statement due
- 29 September 2027in 341 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 62020
- Information technology consultancy activities
- SIC 63120
- Web portals
- SIC 63990
- Other information service activities n.e.c.
- SIC 85590
- Other education n.e.c.
- Accounts type
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not disclosed
1
No changevs Sept 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 30 September 2025 | £622 | — | — | £32k | — | — | 1 |
| 30 September 2024 | £3,215 | — | — | £4,877 | — | — | 1 |
Current ratio0.98Current assets ÷ creditors within one year
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.
06
Filing and accounts signals
- Net assets above zeroNet assets £622 at 30 September 2025
- Net assets down 25% or more on the prior period-80.7% vs prior period
- Current assets below creditors within one yearCurrent ratio 0.98
- Incorporated two to five years agoIncorporated 15 September 2023
Neutral facts read from the register and filed accounts, each with its evidence. They are not a rating, a prediction or advice, and may be incomplete or out of date. How each signal is derived.
07
Timeline
- Confirmation statement duein 341 days
- Next accounts duein 250 days
- Accounts period endNet assets £622 · micro accounts
- Accounts period endNet assets £3,215 · micro accounts
- Incorporated
08
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All companies incorporated on 15 September 2023 · in Sept 2023.
09
Reminders for QUANTUMWAVE SYSTEMS LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.