Altitude Sports, a Montréal-based web retailer specializing in urban and outdoor high-end clothing, has secured an investment from the growth equity group of BDC Capital. No financial terms were disclosed for the deal, which gave BDC a minority stake. Founded in 1984, Altitude is headed by Co-CEOs Maxime Dubois and Alexandre Guimond, who acquired the business in 2011. Today, it offers a selection of more than 340 brands, sold primarily through an online store, Altitude-sports.com. BDC, which has funded Altitude since 2011, will in the latest deal support the company’s continued growth. BDC last year allocated $250 million to growth equity investing.