Artificial intelligence data services company Appen is kicking up its spending on sales and marketing to accelerate its expansion into new markets, as part of a move to become a more tech-driven business.

The company, which enjoyed a 6.7 per cent jump in share price on Tuesday to $25.44 at 2:15pm AEDT on the back of its full-year results, also left the door open to change its dividend policy in the future to accelerate growth via acquisitions or re-investment.