Launched in 2015 by Josh Turner, Stand4 Socks is an eCommerce platform on a mission to change the world one pair of socks at a time.

It has already donated over 4,500 pairs of specially made socks to homeless people in the UK and has also vaccinated thousands of kids against measles in Bangladesh and planted 3,000 trees – all through selling socks online.

See more of our 51 Tech for Good Stars here.