Birmingham-based private distribution, training and services group, Specialist Computer Holdings Plc, has upped its stake in NMW Computers Plc, the Nantwich, Cheshire-based financial software and services house, by a quarter to 21%. NMW’s share price is steady at 32.5p. NMW has been diversifying and shedding, with its acquisition in May last year of Charterhouse Group Ltd (CI No 1,680), and the surprise sale in December of its UK-wide private X25 packet-switched network to Transpac Network Services Ltd (CI No 1,822). Specialist Computer Holdings made two acquisitions in August last year (CI No 1,745) in the IBM Corp RS/6000 arena. The ten year-old self-financed Specialist Computer Holdings comprises five operations, Specialist Computer Centres, Specialist Computer Services, Enhancement Technologies Corp, Specialist Computer Leasing and Specialist Computer Education. Specialist Computer Holdings declined to comment.