The seven-year-old company hopes to raise $108 million for working capital, poerating expenses, and to pay off debt Netezza, a maker of data warehousing appliances, hopes to raise $108 million in an IPO of stock, the company said Thursday.Netezza filed a prospectus with the U.S. Securities and Exchange Commission (SEC) of its plans to offer 9 million shares of its stock at $12 each starting on Tuesday.The company, based in Framingham, Massachusetts, and founded in 2000, sells the Netezza Performance Server (NPS) line, a data warehousing appliance that integrates database, server, and storage functions in order to analyze data for business purposes. Netezza, which raised $98.6 million in four rounds of venture capital funding, reported a net loss of $13.9 million, or $1.09 a share, on revenue of $79.6 million in fiscal year 2007, which ended Jan. 31. It has never been profitable, the company acknowledged in its SEC filing.The company plans to use the $98.2 million net proceeds from the IPO for working capital; general corporate expenses, including product development and marketing; and to pay off a $5.9 million debt.Among other risk factors, Netezza notes that it sells only one product line, which makes it vulnerable to fluctuations in the data warehousing market and to competition for its NPS family of data warehousing appliances. The IPO is being underwritten by Credit Suisse Group, Morgan Stanley & Co., Needham & Company, and Thomas Weisel Partners. The stock will trade on the New York Stock Exchange’s Arca online-only stock and options trading system under the ticker symbol NZ. Technology Industry