Environmental technology group, Porvair, said it had made a good start to its 2012 financial year, with pre-tax profits ahead of its expectations.
In the four months to the end of March, revenues were 12% ahead of the same period in the prior year.
The firm added that during the period order books had strengthened and the outlook for the coming months was encouraging.
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In its Metals Filtration division sales revenue was 15% higher than the same period in the prior year and margins continued to improve, Porvair said.
Its Microfiltration division saw sales revenues rise 10%, while revenue from aerospace grew by 22%.
The news cheered investors who pushed the shares up 3% in early trading on Wednesday.
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