−£77.10m
vs Dec 2023Active07569857Private limited companyLondon
IRONSOURCE UK LIMITED
Significant control: Unity Software Inc. (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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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What does Ironsource UK Limited sell?
Registered activity: Other publishing activities (SIC 58190). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
IRONSOURCE UK LIMITED is an active private limited company (company number 07569857) incorporated on 18 March 2011, registered in London. Its registered activity is other publishing activities (SIC 58190). Latest full accounts cover the period ending 31 December 2024, showing net assets of −£77.10m and cash of £9.58m, with 0 employees on average. Turnover was £118.83m and profit for the year −£12.23m. Net assets fell 19% on the prior period (−£64.87m).
Peer position · net assets
By net assets it sits in the bottom quarter of 2,566 comparable companies in London (median £333, upper quartile £17k).
02
Ownership and control
- Unity Software Inc.
- owns 75–100% of shares
- holds 75–100% of voting rights
- can appoint or remove directors
- Ironsource Ltd.
- 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
- 18 March 201115 yrs ago
- Next accounts due
- 30 September 202623 days overdue
- Confirmation statement due
- 1 April 2027in 160 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 58190
- Other publishing activities
- Accounts type
- Full
- Size band
- MicroCompanies Act thresholds
05
Financials
£9.58m
+125%vs Dec 2023£118.83m
−38%vs Dec 20230
−100%vs Dec 2023| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 December 2024 | −£77.10m | £9.58m | — | £20.07m | £118.83m | −£12.23m | 0 |
| 31 December 2023 | −£64.87m | £4.25m | — | £21.68m | £190.79m | −£61.27m | 6 |
| 1 January 2023 | — | — | — | — | — | — | — |
Current ratio1.42Current assets ÷ creditors within one year
Net margin-10.3%Profit for the year ÷ turnover
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
06
Filing and accounts signals
- Net assets below zeroNet assets £-77,102,082 at 31 December 2024
- Cash at bank of £50,000 or moreCash £9,575,792
- Three or more accounting periods on record3 periods on record
- Incorporated five or more years agoIncorporated 18 March 2011
- Accounts past their due dateDue 30 September 2026
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 160 days
- Next accounts due23 days overdue
- Accounts period endNet liabilities £77.10m · full accounts
- Accounts period endNet liabilities £64.87m · full accounts
- Accounts period end
- Incorporated
08
Similar companies in London
- AEGIS PRODUCTIONS LTDLondon · inc. Mar 2011
- GL ENTERTAINMENT LIMITEDLondon · inc. Mar 2011
- SCIENCE MEDIA CENTRELondon · inc. Mar 2011
- DIGITAL SCORE LTDLondon · inc. Mar 2011
- JULIET BLANK LIMITEDLondon · inc. Mar 2011
- PRANKS MEDIA LIMITEDLondon · inc. Apr 2011
All companies incorporated on 18 March 2011 · in Mar 2011.
09
Reminders for IRONSOURCE UK LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.