Atlassian makes work-collaboration products like HipChat and Trello,which it bought for $US425 million last year. The Sydney-based company saw billings grow 43 per cent in the three months ending December 31,helping its share price jump by a third so far this year. The business,which has more than 100,000 customers,did not have a sales force and preferred to rely on word of mouth to generate sales,Mr Farquhar said in February.