The company, which employs 245 at its manufacturing and assembly plants in Birmingham, Poland and North America, has now sold nearly £7 million worth of its E-Drive technology.
Matthew Hateley, account manager at Grayson Thermal Systems, explains that its electric fan system replaces conventional hydraulic fans used to cool bus and coach engines.
That's popular, he says, because it enables a reduction in operating costs, weight, vehicle noise and fuel consumption – the claim being up to 10%.
"We have invested a lot of resource, time and money on the constant development of E-Drive and it's fantastic to see continued growth," states Hateley.
"The additional sales [from France, Poland, Netherlands, North America and New Zealand] have contributed significantly to us taking turnover from £24 million to £26 million this year, and 20 new jobs have been directly created as a result."
Hateley says E-Drive can be installed at OE production stage or retrospectively when vehicle operators are looking to replace components.
"We are now being specified by a host of global manufacturers as well as vehicle operators specifically requesting the Grayson system on all new fleet purchases," he says.
"Retrofitting of our system is also available for all major European bus models, with each system bespoke to the chassis and engine to meet the original manufacturer's demands."