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Private company

3i Infrastructure

Logo: 3i Infrastructure web, Non-free logo, via Wikipedia4

Investment business headquartered in Jersey

3i Infrastructure plc is an investment trust headquartered in Jersey. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

2007Founded1
  • Industryinvestment1
  • HeadquartersJersey1
  • Websitewww.3i-infrastructure.com
  • Legal formpublic limited company1
  • LEI549300SQ4ZSVSWC6H7503
  • StatusActive3
  • LEI statusIssued and current3
  • Registered addressAZTEC GROUP HOUSE, JE4 0QH St. Helier, Jersey3
  • Registered withJersey Financial Services Commission Companies Registry, 956823

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3i Infrastructure plc is an investment trust headquartered in Jersey. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.2

Corporate structure

3i Infrastructure sits at the top of its group. 3 entities, 3 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • 3i Infrastructure St. Helier, Jersey
    • QUARTIER SANTE Paris, France
    • 3I INFRASTRUCTURE (LUXEMBOURG) HOLDINGS S. À R.L. Subsidiary · Luxembourg, Luxembourg

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0). Each entity in the chart links to its source.

The story

Founded by 3i in 2007.1

The company was launched by way of an initial public offering in 2007. Its early investments included Anglian Water Group and Oiltanking GmbH's terminal facilities in the Netherlands, Malta, and Singapore. Between 2010 and 2020, 3i Infrastructure invested in businesses such as Esvagt, Infinis and Wireless Infrastructure Group, a UK mobile infrastructure provider. Since 2021, the company’s new investments have included SRL Traffic Systems, a UK manufacturer and supplier of temporary traffic equipment, and Global Cloud Xchange.

About 29.2% of the company is owned by 3i Group plc.

From Wikipedia’s article on 3i Infrastructure, shared under CC BY-SA 4.0.5

Subsidiaries and ownership

Also consolidated

Ownership links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); each one cites its LEI record.

Timeline

  1. 2007Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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