Southborough, Mass.-based data center services provider GlassHouse Technologies, poised to go public just a few years ago, has filed for chapter 7 bankruptcy, the Boston Globe reported today. The filing comes two months after GlassHouse sold its consulting division to Phoenix-based Signature Technology Group. In court documents, the company listed debts between $50 million and $100 million, owed to nearly 100 parties, and assets of less than $1 million. In the United Kingdom, a GlassHouse subsidiary owes money to that country’s customs and tax agency, according to British news reports.