Three units at Glossop’s Brookfield Industrial Estate were targeted by burglars at the weekend.
Between 6.30pm on Saturday and 3.30pm on Sunday, thieves broke into NSPP Vocational Training, on Peakdale Road, stealing a cash box and some car keys.
Offenders forced open the main entrance door by pulling off the shutters and smashing the glass.
In the same time period, offenders kicked the window to enter the Northern School of Plastering but nothing was stolen.
There was also an attempted break in at Quinlan Vehicle Repairs when thieves gained entry to the premises by forcing open the shutters. No items were taken.
Any witnesses should call Derbyshire Police on 101.