Martin Doyle, DQ Global chief executive officer, said that extra work has meant that the teams will need to be expanded, although he did not specify details.
Recent client wins for DQ Global include Bolton Wanderers Football Club, which used the firm to clean their databases before the launch of the Premiership season last month.
Others to use its data cleaning services recently include Helpful Holidays and Vauxhall Motors.
Doyle said: "We set an ambitious sales target for 2006. Coupled with increased focus on marketing activity including e-marketing and intensive web marketing, I'm delighted to say that sales in the first half of the year indicate that our efforts are paying off."
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