Audax Private Equity has invested in BlueCat Networks, a provider of infrastructure software. Upon closing, Audax will own a controlling stake in BlueCat, with Madison Dearborn Partners realizing its investment.

BlueCat’s DNS platform supports digital-transformation initiatives, such as rapid-application development.

“BlueCat is positioned well to capitalize on the growth in network complexity driven by device expansion, cloud adoption and security requirements with its existing customers, and accelerate new customer growth through additional investment in channel partnerships. We are thrilled to have the unique opportunity to work closely with Stephen and the entire BlueCat management team to help take BlueCat to the next level,” said Timothy Mack, managing director at Audax.

William Blair and Nomura Securities International are serving as financial advisors to BlueCat. Ropes & Gray is serving as legal counsel to Audax, and Kirkland & Ellis is acting as legal counsel to BlueCat and MDP.