IT services company FDM said it expected its performance in the year through December to be ahead of its previous expectations.
The group closed the year with 3,170 employees placed on client sites, up 17% on 2016.
Revenue, meanwhile, increased by 23% to £233m.
"2017 saw the group deliver a strong performance whilst continuing its strategy of investing for long term growth," chief executive Rod Flavell said.
"We exited 2017 with positive demand in all of our markets, including encouraging growth in new market verticals."
"2018 will see the group continue to invest to deliver long term, sustainable growth, increasing capacity in existing territories whilst also building its presence in some of its more nascent territories."
At 2:09pm: (LON:FDM) FDM Group Holdings Plc share price was -3p at 974p