Under normal circumstances, news that a relatively obscure UK-based firm had led the latest investment round involving an even more obscure US-based firm called Temperpack Technologies, would not have aroused the interest of thewealthnet.

But when the UK firm happens to be the Wheatsheath Group, one of the three main components of the Duke of Westminster’s Grosvenor Estate, which is chaired by Alex Scott, the founder of London-based private investment office Sandaire, the news becomes much more interesting.

If nothing else it highlights the sustainable and social impact ethos of one of the UK’s wealthiest i...