Business

Capital Infusion: Advantage Schools Inc., a Boston-based operator of charter schools in seven states, has secured a new round of $25 million in private venture capital designed to allow it to open 25 new schools in the next 18 months.

Advantage opened its first schools in Rocky Mount, N.C., and Phoenix in 1997. Last fall, it opened charter schools in Chicago; Worcester and Malden, Mass.; San Antonio; Jersey City, N.J.; and Kalamazoo, Mich.

The new financing, announced last month, comes from Chase Capital Partners of New York City, the venture capital arm of Chase Manhattan Corp., and Nassau Capital LLC of Princeton, N.J., which invests in new businesses and real estate on behalf...