Haymarket Exhibitions hired the Newcastle-based voice and audio production company to provide work that will feature at the events, all of which take place on the same weekend starting 12 June.
Celebrities including chefs James Martin, the Hairy Bikers and Ainsley Harriott, gardeners Toby Buckland and Monty Don, former England and Watford football manager Graham Taylor, and former Arsenal star Paul Merson will all appear at the NEC shows.
"There is still a lot of demand for our services; in a recession people often look at radio advertising to save costs," said Get Carter Productions managing director Paul Carter. "Our work will be used on stands and outside events to attract people."
"The fact that we are consistently winning business for these hugely successful shows says a lot about how effective our audio has been in generating interest, which of course translates into thousands of ticket sales."
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