Golden Arrow is offering a reward of R200 000 for information about the torching of its busses.
The money will be paid if the information leads to the arrest and conviction of a perpetrator.
Two busses were set alight on Monday in Phillipi.
Last week Friday, three others were also destroyed near Delft.
The company is especially looking for videos showing perpetrators torching buses.
Golden Arrow’s Bronwyn Dyke-Beyer hopes the reward will stop the attacks