Tripwire, Inc. is a software company based in Portland, Oregon that develops, markets and sells information technology (IT) solutions that provide security and compliance automation. year later, the company announced its sale to the private equity firm Thoma Bravo LLC, ending its $86 million IPO plans. CEO Jim Johnson cited the firm's failure to reach the $100 million revenue milestone in 2010 as well as changing IPO market expectations as reasons for not going through with the IPO.