JSON UNDEFINED LTD
Company number 15908519 · Active · London SE9 1JS
JSON UNDEFINED LTD is an active private limited company (company number 15908519) incorporated on 20 August 2024, registered in London. Its registered activity is business and domestic software development (SIC 62012). Latest micro accounts cover the period ending 31 August 2025, showing net assets of £22k, with 1 employee on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public.
By net assets it sits in the upper half of 15,170 comparable companies in London (median £702, upper quartile £27k).
Key dates
- Incorporated
- 20 August 2024
- Next accounts due
- 31 May 2027 — in 223 days
- Confirmation statement due
- 3 September 2027 — in 318 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
Activity
- SIC 62012
- Business and domestic software development
- Accounts type
- Micro Entity
- Size band
- Micro (Companies Act thresholds)
Financials — 1 period on record, latest ending 31 August 2025
| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 August 2025 | £22k | — | — | — | — | — | 1 |
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: 64/100 (grade C)
- +10 Positive net assets — Net assets £21,695 at 2025-08-31
- +4 Past first filings — Incorporated 2024-08-20
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 Jason Viet Dung Ngo — owns 75–100% of shares; holds 75–100% of voting rights; can appoint or remove directors · since 20 August 2024
Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents.
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Reminders for JSON UNDEFINED LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.