As at 31 March 2024, the Company has a portfolio of 12 economic infrastructure businesses, valued at £3.8bn.

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Long-term track record

Since its launch in 2007, 3i Infrastructure has built a portfolio that has provided significant income and consistent capital growth.

Track record

Past portfolio

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Key portfolio facts (as at 30 September 2023)

£ 3.9 bn

Value of portfolio




Number of investments

Latest portfolio news

Press release 08 May 2024

Results for the year to 31 March 2024

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Press release 28 Mar 2024

3i Infrastructure plc – Pre-close update

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Press release 26 Jan 2024

3i Infrastructure plc – Q3 Performance update

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Attero Wijster 23 Large

Track record: Attero

During our five-year investment, the leading waste treatment business Attero doubled its earnings and opened a new electricity turbine capable of powering over 200,000 households. 3i’s Aaron Church and Attero CEO Paul Ganzeboom discuss the partnership.

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