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Private limited company registered in London, classed under “Business and domestic software development”.
Headline figures
FY to Apr 2025 · Company only
Turnover
For subscribers
Profit after tax
−£1.4k
Net assets
For subscribers
Cash
For subscribers
Employees
For subscribers
Retained reserves
For subscribers
What the numbers say
4 findings from the figures, in plain English
Written by rules from the figures on this page. Not a forecast or a credit opinion.
History
| £ | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Profit after tax | −£1.4k | ||||
| Turnover | |||||
| Net assets | |||||
| Cash | |||||
| Employees | |||||
| Retained reserves | |||||
| Dividends paid |
Every figure for all 5 years
“—” means we did not find the figure in a source; it is never filled with an estimate.
Balance sheet and ratios
From the filed balance sheets · £
| Balance sheet | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| Fixed assets | ||||
| Current assets | ||||
| of which debtors | ||||
| of which cash | ||||
| Creditors due within a year | ||||
| Net current assets | ||||
| Net assets | ||||
| Ratios | ||||
| Dividends to profitDividends paid as a share of profit after tax, in a year with a profit | ||||
| Current ratioCurrent assets for every £1 owed within a year | ||||
| Cash ratioCash for every £1 owed within a year | ||||
| Creditors to assetsEverything owed to creditors as a share of fixed plus current assets | ||||
7 balance-sheet lines and 4 ratios, every year
A ratio appears only for years where every line it needs was filed. Lines are as tagged in the accounts; nothing is added up or estimated.
Timeline
Checked 2026-10-22
- DirectorsTermination of appointment of Louise Blackman as a director on 11 May 2026
- AccountsTotal exemption full accounts made up to 30 April 2025
- AccountsTotal exemption full accounts made up to 30 April 2024
- AccountsTotal exemption full accounts made up to 30 April 2023
- AccountsTotal exemption full accounts made up to 30 April 2022
- AccountsTotal exemption full accounts made up to 30 April 2021
- AccountsTotal exemption full accounts made up to 30 April 2020
- AccountsMicro company accounts made up to 30 April 2019
- IncorporationIncorporation
From the Companies House filing history. Routine confirmation statements are left out, and a run of the same filing is shown once.
Questions people ask
›What does Onyx Black do?
Private limited company registered in London, classed under “Business and domestic software development”.
›How much turnover does Onyx Black make?
Answered in the full report
›Is Onyx Black profitable?
No: it made a loss after tax of £1.4k in the year to 30 April 2025, its latest filed accounts.
›How many people work at Onyx Black?
Answered in the full report
›Who runs and owns Onyx Black?
Its directors are Louise Blackman, Colin Michael Blackman. Its owners are shown to subscribers.
›Where is Onyx Black based?
Its registered office is 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ, in London.
›When was Onyx Black founded?
Onyx Black Limited was incorporated on 23 April 2018.
›Is Onyx Black still trading?
The register lists Onyx Black Limited as active.