Chairman: Lord Ballyedmond
Pre-tax profit: £17.6m
Based in Newry, the company specialises in the development, licensing, manufacturing and marketing of veterinary pharmaceuticals and active pharmaceutical ingredients.
Along with manufacturing and distribution facilities on three major sites in Newry which continue to be expanded, Norbrook also has manufacturing and distribution facilities in the Republic of Ireland, the US, Central Europe, Australasia, South America and Africa.
Norbrook invests a significant proportion of its revenues in the research and development of new products.
The company recently launched a new medicine for cattle, which became a market leader in the UK and Ireland and is now being launched across Europe.
Norbrook says it has more products in development which it expects to fuel company growth in the coming years.