Partners Group Holding AG operates as an investment management company, which specializes in investments in private markets with growth and development potential. It operates through the following segments: Private Equity, Private Debt, Private Real Estate, and Private Infrastructure. The Private Equity segment includes direct investments in private companies and investments in the private equity secondary market. The Private Debt segment offers tailored financing solutions for businesses seeking non-bank funding, which includes senior loans and mezzanine financing solutions. The Private Real Estate segment involves investment in private real estate assets in the retail, office, industrial, hotel, and residential property markets. The Private Infrastructure segment encompasses investments in private infrastructure assets in the transportation, communication, renewable power, energy infrastructure, water, and waste management sectors. The company was founded by Alfred Gantner, Marcel Erni, and Urs Wietlisbach in 1996 and is headquartered in Baar, Switzerland.