The Worcestershire-based arboricultural firm has won three large contracts in Wolverhampton, Coventry and Bromsgrove.
Work begins this month on a four-year contract valued at more than £2m to carry out arboricultural works across Coventry City Council's area.
In addition, Acorn Tree Surgery - which won the arboricultural contractor category in the 2007 Horticulture Week Landscape & Amenity Awards - has also been awarded a three-year extension of a contract for Wolverhampton City Council. Managing director Kevin O'Rourke said: "We are over the moon to win these contracts as this takes us up to 2013."
The company has also been put on a framework agreement for similar work for Bromsgrove District Council.