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Lowell, MA. Quallaby Corporation is a leading provider of telecommunications software that enables service providers to derive maximum revenue from their network infrastructure. PROVISO software from Quallaby sets the standard for network performance monitoring and service assurance. Quallaby was acquired by Micromuse (NASDAQ: MUSE) in June 2005. Micromuse was acquired by IBM in February 2006.
Investment Partners: Matrix Partners, North Bridge Venture Partners