Gresham House's first dedicated sustainable infrastructure strategy fund – BSIF I – is currently delivering a 21 per cent gross internal rate of return (IRR), more than double its target IRR.

BSIF I reached a final close in May 2020 having reached its hard cap of £300 million. 

It is backed by one UK Treasury and six UK local authority pension fund limited partners (LPs).
 
The BSIF strategy focuses on local and regional projects that deliver a positive social or environmental impact.