Roger Siboni, Ceo, E.Piphany

For Roger S. Siboni, running Internet software maker E.piphany is like riding a bucking bronco -- at least when it comes to the share price. With a high of $324 and a low of $16 since the company went public last September, it has been one of the most volatile stocks on Wall Street. Luckily for E.piphany's loyal investors, this is also one of the most promising small companies in e-business. On Apr. 17, it announced that quarterly revenues had risen 661%, to $14.4 million, and excluding special charges, the loss was just $4.5 million. The good news drove the stock up 36%, to $66.50.

This looks like the dawn of a more stable era for E.piphany. Since joining the company from KPMG two years ago, Siboni has built or acquired a broad array of products. With the pending acquisition of Octane Software, E.piphany now provides customers with tools for everything from culling and analyzing information about customers to reaching out to them via e-mail and the Web to handle sales, service, and support. All the information is kept in one place. "The biggest failing we've seen among our brick-and-mortar customers is they think they need a separate Web presence," he says. "Our experience convinces us that these pieces have to be woven together if you're going to win in the new customer economy."