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Companies House/London/Company profile

IRONSOURCE UK LIMITED

Active
07569857·incorporated 2011-03-18

IRONSOURCE UK LIMITED is an active UK private limited company, incorporated on 18 March 2011 at Companies House (number 07569857; OpenRegistry canonical ID GB-07569857-ironsource-uk-limited). Sophymarine's OpenRegistry classifies it under SIC 58190 (Other publishing activities), one of 13,028 active UK entities in that code and one of 1,093,852 active companies registered in London (postcode EC4M). Programmatic access via MCP at https://openregistry.sophymarine.com/mcp.

Status
Active
Type
Private Limited Company
Incorporated
2011-03-18
Registered Address
30 OLD BAILEY, LONDON, EC4M 7AU, UNITED KINGDOM
SIC
58190 — Other publishing activities
Country of origin
United Kingdom

Directors

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Shareholders

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Financials

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Filings

Check filing history of IRONSOURCE UK LIMITED

Accounts

Last filed accounts made up to 2024-12-31. Next accounts due 2026-09-30. Financial year-end: 31/12. Filing class: FULL.

Confirmation statement

Last confirmation statement made up to 2026-02-28. Next confirmation statement due 2027-03-14.

Mortgages and charges

5 charges recorded against the company at Companies House: 0 outstanding, 5 satisfied, 0 partially satisfied.

Persons with significant control

IRONSOURCE UK LIMITED has 1 person with significant control on file:

  • Unity Software Inc. (United States reg. 4692585). Notified 2022-11-07.
    • Owns 75% or more of shares
    • Holds 75% or more of voting rights
    • Has the right to appoint and remove directors
  • No individual or entity with significant control has been identified.

2 historical PSC records have ceased:

  • Ironsource Ltd. (Israel reg. 514643626). Notified 2021-06-29. Ceased 2022-11-07.
    • Owns 75% or more of shares
    • Holds 75% or more of voting rights
    • Has the right to appoint and remove directors
  • (unnamed). Notified 2017-03-16. Ceased 2021-06-29.

Previous names

IRONSOURCE UK LIMITED has previously traded as:

  • SUPERSONICADS UK LIMITED (until 2016-04-06)

Similar UK companies

Other companies registered under SIC 58190 (Other publishing activities):

Other companies registered in London:

Need real-time profile, officers, shareholders, financials or filing? Open the live profile at /company/gb/07569857.

Source: Companies House Free Company Data, refreshed 2026-05-01. Official record: find-and-update.company-information.service.gov.uk.