Visio, the business and technical drawing software company which employs over 120 people at its international headquarters in Dublin, has reported a 41 per cent increase in fourth quarter revenues to $44.2 million (£29.5 million) from $31.4 million last year. Net income for the year, excluding pre-tax acquisition related charges of $9.3 million, was $35 million compared to net income of $21.3 million for fiscal 1997, excluding pre-tax acquisition related charges of $10.3 million.