(ShareCast News) - Digital marketing firm Digital Globe Services was brimming with confidence on Thursday, posting an impressive set of interim numbers, including its strongest ever first half revenue.The AIM-traded company saw revenue increase 29% to $23.7m in the six months to 31 December, with gross profit up 38% to $7.7m. Adjusted EBITDA improved by 467% to $2.5m, with an adjusted EBITDA margin of 11%.Basic earnings per share were four cents, up from a loss of three cents in 2014.On 31 December, Digital Globe had cash of hand of $0.6m, with $0.07m drawn down under its $3m credit facility.The company's board recommended an interim dividend of 2.6 cents per share. There was no interim dividend in 2014."We are pleased to confirm that the strong trading momentum from the second half of fiscal 2015 accelerated into the first half of the current financial year, with this period marking our strongest first half performance to date," said chief executive officer Jeff Cox."The company has experienced record growth over the twelve-month period, driven by expansion within our existing core customers, the launch of new business offerings and growth into new industry verticals," he added.Cox said Digital Globe's strong balance sheet and healthy profit had the board confident in continued profitable revenue growth.