The company claimed the sector is "growing" and will give it more support. Business services will be divided into four other areas: design, print, display and finish.
Managing director Laird Mackay said: "The aim is to give business clients a clearer idea and better understanding of how we can help them."
The move is part of a rebrand, which will involve Prontaprint's blue-and-red identity being replaced with "warm aubergine".
The franchised, on-demand print operation is trialling the new look in seven of its 175 centres nationwide. Full roll-out is expected this summer.
Prontaprint denied that it is turning its back on traditional accounts. A spokesman said: "We are not abandoning smaller customers, but are targeting medium-sized and larger ones. We are overwhelmingly a B2B organisation. A very small percentage of our business comes in off the high street."
Several Prontaprint centres are in business parks rather than town centres, with some franchises turning over more than 1m a year.
Individual centres are unlikely to be investing heavily in new kit for the rebrand, since the network is digitally linked. Larger jobs will be transferred to centres with suitable capacity.
The repositioning has followed a 12-month consultation, which led to the reorganisation of Prontaprint's sales, marketing, IT and training support for franchisees.
Prontaprints rebrand features increased focus on corporates
Prontaprint is to target corporate clients such as British Airways, Next and Dixons in an assault on the direct mail market.