The agency has also forecast a year-on-year increase of 25% in gross profit for the same period, having moved its financial year-end from January to December.
TBT managing director Pete Saunders said: "The majority of business was in the IT sector. It is down to strong relationships, and word of mouth."
The agency increased its headcount to a total of 48 staff in 2012, and is currently recruiting for two marketing roles, he added.
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