Audax Private Equity, a private equity firm, agreed to acquire a minority stake in BlueCat Networks, a provider of mission-critical, infrastructure software. Financial terms were not disclosed. "Audax has a lengthy and reputable track record of successfully partnering and working collaboratively with software and technology companies in infrastructure and security, in particular by deploying its Buy & Build strategy to expand offerings and move into adjacent markets, and we look forward to benefiting from the firm’s value-add resources,” Stephen Devito, BlueCat Networks CEO.