IRONSOURCE UK LIMITED
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Next accounts due
2026-09-30 (in 4mo)
Last filed for 2024-12-31
Confirmation statement due
2027-03-14 (in 10mo)
Last made up 2026-02-28
Watchouts
None on the register
Cash
£10M
+125.3% vs 2023
Net assets
-£77M
-18.9% lowest in 6 filed years
Employees
0
-100% lowest in 6 filed years
Profit before tax
-£12M
+79.5% vs 2023
Net assets
9-year trend · vs Consumer Discretionary median
Accounts
9-year trend · latest reflected 2024-12-31
| Metric | Trend | 2019-01-01 | 2019-12-31 | 2020-12-31 | 2021-01-01 | 2021-12-31 | 2022-12-31 | 2023-01-01 | 2023-12-31 | 2024-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Turnover | — | £129,216,592 | £137,660,441 | — | £223,372,495 | £306,682,081 | — | £190,790,436 | £118,832,679 | |
| Operating profit | — | £1,069,626 | £1,301,341 | — | -£725,134 | -£34,978,180 | — | £15,183,480 | -£12,111,135 | |
| Profit before tax | — | £1,069,626 | £1,301,341 | — | -£725,134 | -£34,978,180 | — | -£59,065,314 | -£12,111,135 | |
| Net profit | — | £875,519 | £974,204 | — | -£704,870 | -£35,043,367 | — | -£61,270,555 | -£12,230,964 | |
| Cash | £3,162,440 | £6,188,948 | £4,539,584 | — | £11,590,963 | £16,872,261 | £16,872,261 | £4,249,768 | £9,575,792 | |
| Total assets less current liabilities | — | £2,539,766 | £3,582,513 | — | £82,890,322 | £385,687,100 | — | £309,703,872 | £307,863,180 | |
| Net assets | — | £2,538,301 | £3,580,736 | — | £12,600,042 | -£3,821,287 | — | -£64,871,118 | -£77,102,082 | |
| Equity | £1,552,426 | £2,538,301 | £3,580,736 | £3,580,736 | £12,600,042 | -£3,821,287 | -£3,821,287 | -£64,871,118 | -£77,102,082 | |
| Average employees | — | 12 | 10 | — | 7 | 9 | — | 6 | 0 | |
| Wages | — | £1,276,258 | £1,036,869 | — | £1,010,978 | £1,923,987 | — | £894,745 | — | |
| Directors' remuneration | — | — | — | — | — | — | — | — | — |
Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. About these numbers
Year-on-year
FY2023 → FY2024 · period ending 2024-12-31 vs 2023-12-31
-
Turnover
-37.7%
£190,790,436 £118,832,679
lowest in 6 filed years
-
Cash
+125.3%
£4,249,768 £9,575,792
-
Net assets
-18.9%
-£64,871,118 -£77,102,082
lowest in 6 filed years
-
Employees
-100%
6 0
lowest in 6 filed years
-
Operating profit
-179.8%
£15,183,480 -£12,111,135
-
Profit before tax
+79.5%
-£59,065,314 -£12,111,135
Each % is (latest − prior) ÷ |prior| for the line item as filed. The comparison is only shown when the latest and prior accounts cover broadly equal-length periods — short or long stubs (typical around incorporation or a year-end change) are suppressed rather than misrepresented. Lines a company doesn't report are omitted. About these numbers
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2019-01-01 | 2019-12-31 | 2020-12-31 | 2021-01-01 | 2021-12-31 | 2022-12-31 | 2023-01-01 | 2023-12-31 | 2024-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Operating margin | — | 0.8% | 0.9% | — | -0.3% | -11.4% | — | 8.0% | -10.2% | |
| Net margin | — | 0.7% | 0.7% | — | -0.3% | -11.4% | — | -32.1% | -10.3% | |
| Return on capital employed | — | 42.1% | 36.3% | — | -0.9% | -9.1% | — | 4.9% | -3.9% | |
| Gearing (liabilities / total assets) | — | — | — | — | — | — | — | 119.6% | 123.5% | |
| Current ratio | — | — | — | — | — | — | — | 1.47x | 1.42x | |
| Interest cover | — | — | — | — | — | — | — | 1.79x | -1.44x |
Margins divide P&L lines by turnover. Gearing is liabilities over total assets. Current ratio is current assets over creditors falling due within one year. Interest cover is operating profit over absolute finance costs. Sector-distribution context coming next.
Name history
Renamed 1 time since incorporation
- IRONSOURCE UK LIMITED 2016-04-06 → present
- SUPERSONICADS UK LIMITED 2011-03-18 → 2016-04-06
Audit & accounting basis
- Accounting basis
- FRS 102
- Reporting scope
- Standalone (parent only)
- Auditor
- Forvis Mazars LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“The financial statements are prepared on a going concern basis. The company remains assured of the financial support by the parent company, Ironsource Mobile Ltd. The directors have received confirmation that the parent company will continue to support the company and provide it with adequate funds when necessary to enable it to meet its debts as they fall due for at least 12 months after signing these financial statements. On this basis, the directors consider it appropriate to prepare the financial statements on a going concern basis.”
Group structure
- IRONSOURCE UK LIMITED · parent
- Luna Labs Limited 100%
- ironSource Sonic, Inc 100%
- Tapjoy Inc 100%
- Tapjoy Information Technology Co., Ltd 100%
- Tapjoy Wireless Applications Technology (Beijing) Ltd 100%
- Tapjoy Korea Co., Ltd 100%
- Tapjoy Japan K.K 100%
- 5Rocks Inc 100%
- Tapjoy Limited 100%
- Tapdaq Limited 100%
Significant events
- “The company's turnover has decreased this year to £118.8 million (2023: £190.8 million).”
- “During the period year, the employees of the company transferred to Unity software Limited, a parent company.”
- “There have been no significant events affecting the company since the year end.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
2 active · 7 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| DODGE, Amy Lane | Director | 2025-12-23 | May 1976 | American |
| LAYTON, Jasmine De | Director | 2024-09-27 | Jun 1983 | American |
Show 7 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| BAR ZEEV, Tomer | Director | 2016-03-24 | 2024-03-10 |
| BEN AMI, Assaf | Director | 2016-03-24 | 2024-03-10 |
| CZERNIAK, Arik | Director | 2012-10-10 | 2016-01-13 |
| GO, Nora | Director | 2024-03-10 | 2025-07-31 |
| GUPTA, Anirma Rakshpal | Director | 2025-09-01 | 2025-11-14 |
| SHOHAM, Gil | Director | 2011-03-18 | 2016-01-13 |
| VISOSO, Luis | Director | 2024-03-10 | 2024-08-09 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Unity Software Inc. | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2022-11-07 | Active |
| Ironsource Ltd. | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2021-06-29 | Ceased 2022-11-07 |
Filing timeline
Last 20 of 83 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-03-11 | AA | accounts | Accounts with accounts type full | |
| 2026-03-07 | DISS40 | gazette | Gazette filings brought up to date | |
| 2026-03-05 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2026-03-03 | GAZ1 | gazette | Gazette notice compulsory | |
| 2026-01-09 | AP01 | officers | Appoint person director company with name date | |
| 2026-01-09 | TM01 | officers | Termination director company with name termination date | |
| 2025-10-24 | AP01 | officers | Appoint person director company with name date | |
| 2025-10-24 | TM01 | officers | Termination director company with name termination date | |
| 2025-03-04 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-03-03 | PSC05 | persons-with-significant-control | Change to a person with significant control | |
| 2025-02-12 | AA | accounts | Accounts with accounts type full | |
| 2024-10-14 | AP01 | officers | Appoint person director company with name date | |
| 2024-10-11 | TM01 | officers | Termination director company with name termination date | |
| 2024-07-17 | AD01 | address | Change registered office address company with date old address new address | |
| 2024-04-23 | TM01 | officers | Termination director company with name termination date | |
| 2024-04-23 | AP01 | officers | Appoint person director company with name date | |
| 2024-04-23 | TM01 | officers | Termination director company with name termination date | |
| 2024-04-23 | AP01 | officers | Appoint person director company with name date | |
| 2024-03-12 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-12-21 | AA | accounts | Accounts with accounts type full |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 8
- Capital events
- 0
- Officers appointed
- 1
- Officers resigned
- 2
last 12 months
last 24 months
last 12 months
last 12 months
Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.