Model N, a revenue management enterprise software provider, went public on March 20, 2013. The company raised over $100 million in its initial public offering (IPO). I first met the founder Zack Rinat thirteen years ago. When he rang the bell on the New York Stock Exchange, I raised a glass for a toast. He did it. There have been too few public offerings in the world of enterprise applications. I applaud Zack for taking his third company through a successful public offering.