Poundland is a British discount store chain that sells products for £1. It was founded in 1990 by Steve Smith and is currently owned by Pepkor Europe, a subsidiary of Steinhoff International Holdings.
The font used for the Poundland wordmark is Mixage Bold, a humanist sans serif designed by Aldo Novarese for ITC in 1985. Mixage is a commercial font, and further information can be found here.