Public sector revenues increased 16% to offset a 17% drop in sales in its commercial business.
A statement from the firm said: 'There has been an increase in both the public sector order book of 45% on the same period last year and orders to be invoiced by the year end worth£33.1m.
'In addition, we continue to win one out of every two contracts bid for in this sector.'
ITNet has seen an increase of 22% in its forward order book, taking it to£304m and chief executive Bridget Blow expects around£87m of this to fall into next year.
She added: 'The strength of our order book demonstrates the sustainable nature of our business model over the long term.'