Crown's turnover grew from £4.2m in 2009 to £5.2m for the year ending 31 December 2010, while gross profit rose from £2.9m to £3.2m in the same period.
Crown was unavailable for comment at the time of writing. Its clients include Renault, HSBC and Sony.
Last month the company won new business from Bank of America Merrill Lynch and London 2012.
In August, Crown aquired events and communications agency Acclaim.
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