What is "bundesimmobiliengesellschaft"

Bundesimmobiliengesellschaft m.b.H or BIG is a quasi-governmental company in Austria, which manages Austrian publicly owned real estate. BIG is the central provider of space for several public sector functions such as schools, universities, prisons, courts and police stations. It rents out buildings to the government entities using them, carries out renovations and new investments, and handles sales of buildings and land no longer in use by the public sector.