Welcome to 3i

For US regulatory reasons, US Residents are not to enter this site without the express permission of 3i Group plc, and 3i Group plc is not offering any securities or services in the United States or to US Residents through this site. (The term "US Residents" is defined in the detailed terms and conditions set out in the Terms and conditions page).

I am not a US resident (or I am, but I have 3i Group plc's express permission to use this site) and I accept the terms and conditions.

Terms and conditions

Our funds

Our third-party funds consist of public and private funds and an established co-investment programme.

Hand interacting with financial charts on a screen

Europe

3i Infrastructure plc

  • listed investment company with £4.3bn portfolio value at March 2026
  • 3i Group has a 29% interest

£4.3bn
portfolio value

3i MIA

  • unlisted fund with AUM of £1.9bn at March 2026
  • portfolio of 5 assets

£1.9bn
assets under management

Co-investments

£699m
assets under management1 
(Tampnet £433m, ESVAGT £129m, Future Biogas £42m, Lefdal Mine Datacenter £95m)

1. Proforma to include the signed investment in Lefdal Mine Datacenter, due for completion in Q3 2026.

Contact

Thomas Fodor
Investor Relations Partner
[email protected]
020 7975 3469  

Thomas Fodor Tout Image

North America

3i North American Infrastructure

  • portfolio of 4 assets
  • third-party co-investors

c.$1bn
assets under management

As at 31 March 2026

Latest

Portfolio

Supporting sustainability

Take a look at a year of sustainability achievements in our portfolio, including decarbonising operations, innovating products and investing in people and teams.

Watch video: Supporting sustainability

01 Feb 2026

A guiding hand

  • Infrastructure

01 Dec 2025

Still the land of opportunity?

  • Infrastructure
View all news