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The company was founded in 1969 by McCulla's late father David, a cattle farmer and businessman. It prospered by transporting meat from Northern Ireland to England, Scotland and Wales, including Smithfield Market in London. By the mid-80s it was operating more than 20 trucks, and decided to build its own coldstore in 1985.
The business was badly hit by the BSE crisis in the mid-90s and even stopped running trucks to Britain for a short period.
McCulla says: "In the mid-90s, 90% of our work was transporting beef, so when the crisis happened we were wiped out. However, we worked our way out of it and in 1997 decided to extend and develop the coldstore."
The haulage side of the business had shrunk to the point where it had only five trucks and nine trailers, but in 2000 the company decided to grow its transport operation again. The company is now owned by McCulla and his sister, finance director Carol Thompson.