The company, which was established in 1976 and is due to celebrate five years in its factory in Wigan, was awarded the esteemed title last week at an event organised by the Greater Manchester Chamber of Commerce.
Hazeldene operations manager Ken McLoughlin said: "Its such an achievement for us but not without years of hard work and determination to get to where we are today. Our move to Wigan has been very successful and our aim to be the preferred choice of ready to eat fresh salad and speciality products is within reach."
NORFOLK HOUSE FARM
In 1998, Norfolk House Farm established one of the largest areas of reed bed on the east coast when it took a 10ha field out of production and opened up 2.8ha of water, which soon grew reeds. In the first year of its establishment, avocets nested on the site and marsh harriers are now also regular visitors.
In addition, more than eight miles of hedgerow have been established across the farm, while grass margins and field corner options are utilised by grey partridges and barn owls. The margins also provide buffer zones for hedges and dykes from the commercial production.
Yellow hammers and tree sparrows have increased in numbers and large number of greenshank and black tailed godwit use the farm for summer roosting. The common spotted orchid has returned to two sites on the estate.
Future plans for the farm include a monitoring period to see what the latest environment developments have achieved. Norfolk House Farm is also taking part in the Campaign for the Farmed Environment - a voluntary initiative that seeks to retain the environmental benefits previously provided by set aside.