<p>A little-known Austrian software company is looking to snatch business from established players HP Enterprise (HPE) and IBM in the market for software testing tools, after raising $165 million from a U.S. private equity firm.</p> <p>Tricentis, founded in Vienna in 2009 and now headquartered in the Silicon Valley town of Los Altos, has emerged as a leader in automating how big businesses test and deploy software, despite having raised little outside funding previously.</p>