Business Brief: Welcome to the US$100-million club

Good morning. I'm Sean Silcoff. I write about technology and life sciences, and this weekend we published my months-long deep dive into a new wave of scaled-up tech companies. Unlike Canadian tech names of the past, these players have options to run as stand-alone companies. In fact, many of them seem likely to head toward a splashy initial public offering. More on those successes below, but first: In the news Retailers and their clients expressed mixed feelings about the GST holiday tax break as the policy entered into force Saturday. Mail will begin moving again across Canada on Tuesday after…