Frank Quattrone is back as a banker — Quattrone and associates are starting a new boutique investment banking firm, called Qatalyst Group. During the (last) bubble in the ’90s, Quattrone was a top deal-maker, helping many promising (and unpromising) startups of the era go public. Some of his more illustrious clients included Amazon, Cisco Systems, and Netscape. After that bubble burst, he spent years fighting legal charges that he had somehow misled consumers about his clients’ viability in public markets. The charges ultimately didn’t stick. Now, Qatalyst is hoping to help modern-day startups to take advantage of their explosive success over the past few years. Rivals like Allen & Co., Montgomery & Co. as well as larger banks, have already been doing that — and now there’s a downturn in the economy, which will make both late-staging funding and liquidity events less likely. Then again, Quattrone has impressive connections and experience. Here’s what Google chief executive Eric Schmidt told Dow Jones about the news: “The launch of Qatalyst is an important development for the technology industry. Frank and his team bring unparalleled industry knowledge, a unique 25-year market perspective and candid, insightful judgment that CEOs greatly value on important strategic initiatives.” The New York Times has more (and was the source of Quattrone’s photo, to the left).