Get an alert when IRONSOURCE UK LIMITED files next

Leroy will email you the moment a new filing lands at Companies House — one short note per filing, nothing else.

Free · confirmation link first · unsubscribe in one click

Cash

£9.6M

+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

Watchouts

Facts from the Companies House register and the latest accounts — not a rating

Accounts

6-year trend · Δ = latest vs prior filed period · latest reflected 2024-12-31

Metric Trend 2019-12-312020-12-312021-12-312022-12-312023-12-312024-12-31 Δ vs prior
Turnover £129,216,592£137,660,441£223,372,495£306,682,081£190,790,436£118,832,679 -37.7%
Operating profit £1,069,626£1,301,341-£725,134-£34,978,180£15,183,480-£12,111,135 -179.8%
Profit before tax £1,069,626£1,301,341-£725,134-£34,978,180-£59,065,314-£12,111,135 +79.5%
Net profit £875,519£974,204-£704,870-£35,043,367-£61,270,555-£12,230,964 +80%
Cash £6,188,948£4,539,584£11,590,963£16,872,261£4,249,768£9,575,792 +125.3%
Total assets less current liabilities £2,539,766£3,582,513£82,890,322£385,687,100£309,703,872£307,863,180 -0.6%
Net assets £2,538,301£3,580,736£12,600,042-£3,821,287-£64,871,118-£77,102,082 -18.9%
Equity £2,538,301£3,580,736£12,600,042-£3,821,287-£64,871,118-£77,102,082 -18.9%
Average employees 12107960 -100%
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. The Δ column is the change from the prior filed period as a percentage of |prior|; lines a company doesn't report show . About these numbers

Ratios

Computed from the line items above — sparklines read oldest → newest

Ratio Trend 2019-12-312020-12-312021-12-312022-12-312023-12-312024-12-31
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 1.47x1.42x
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

  1. IRONSOURCE UK LIMITED 2016-04-06 → present
  2. 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

  1. IRONSOURCE UK LIMITED · parent
    1. Luna Labs Limited 100% · United Kingdom · R&D, Sales & IP ownership
    2. ironSource Sonic, Inc 100% · USA · Mobile marketing monetisation services to publishers
    3. Tapjoy Inc 100% · United States · Mobile marketing monetisation services to publishers
    4. Tapjoy Information Technology Co., Ltd 100% · China · Mobile marketing monetisation services to publishers
    5. Tapjoy Wireless Applications Technology (Beijing) Ltd 100% · China · Mobile marketing monetisation services to publishers
    6. Tapjoy Korea Co., Ltd 100% · South Korea · Mobile marketing monetisation services to publishers
    7. Tapjoy Japan K.K 100% · Japan · Mobile marketing monetisation services to publishers
    8. 5Rocks Inc 100% · South Korea · R&D services
    9. Tapjoy Limited 100% · United Kingdom · Mobile marketing monetisation services to publishers
    10. Tapdaq Limited 100% · United Kingdom · R&D services

Significant events

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 PDF
2026-03-07 DISS40 gazette Gazette filings brought up to date
2026-03-05 CS01 confirmation-statement Confirmation statement with no updates PDF
2026-03-03 GAZ1 gazette Gazette notice compulsory
2026-01-09 AP01 officers Appoint person director company with name date PDF
2026-01-09 TM01 officers Termination director company with name termination date PDF
2025-10-24 AP01 officers Appoint person director company with name date PDF
2025-10-24 TM01 officers Termination director company with name termination date PDF
2025-03-04 CS01 confirmation-statement Confirmation statement with no updates PDF
2025-03-03 PSC05 persons-with-significant-control Change to a person with significant control PDF
2025-02-12 AA accounts Accounts with accounts type full
2024-10-14 AP01 officers Appoint person director company with name date PDF
2024-10-11 TM01 officers Termination director company with name termination date PDF
2024-07-17 AD01 address Change registered office address company with date old address new address PDF
2024-04-23 TM01 officers Termination director company with name termination date PDF
2024-04-23 AP01 officers Appoint person director company with name date PDF
2024-04-23 TM01 officers Termination director company with name termination date PDF
2024-04-23 AP01 officers Appoint person director company with name date PDF
2024-03-12 CS01 confirmation-statement Confirmation statement with no updates PDF
2023-12-21 AA accounts Accounts with accounts type full PDF

Public-record activity

Raw counts from Companies House — last 12–24 months

Filings
8

last 12 months

Capital events
0

last 24 months

Officers appointed
1

last 12 months

Officers resigned
2

last 12 months

Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.

Official Companies House page