KOS (formerly HSS) is the company at the head of a prime Italian healthcare group operating in the care-home sector. The mission of the group is to offer healthcare and long-term care in a professional, welcoming and humane way, valuing talent and promoting the contribution of individuals. The facilities managed by KOS place patients at the centre of their activity and give top priority to their needs and requirements. Established by CIR in 2002, the comapny is active in three business areas: 

• Nursing homes (RSAs):  KOS is the top private Italian provider in terms of number ofnumber of beds under management in care homes for the non-self sufficient elderly, where it operates under the brand  Anni Azzurri.
• Rehabilitation: KOS is the fourth private Italian operator in terms of beds under management in functional psychiatric rehabilitation units, where it operates under the brands  Santo Stefano (functional rehabilitation) and Redancia (psychiatric rehabilitation).
• Hospital facilities: providing advanced and complex hi-tech medical services (diagnostic imagining, nuclear medicine and radio therapy) as an external service provider for the Naional Health Service, under the Medipass brand. In this business area, the group also manages the  Fratelli Montecchi Hospital in Suzzara (Mantua).

KOS manages 59 facilities in central and northern Italy, for a total of over 5,500 beds, plus approximately 400 under construction. In 2009, KOS posted  consolidated revenues of 273.4 million euro, EBITDA pf approximately 33.0 million euro and a net result close to breakeven (-0.4 million euro). The breakdown in percentage terms of 2009 revenues by business area is as follows: RSAs 43%, Rehabilitation 41%, Hospitals faacilities 16%. The CEO of KOS is Giuseppe Vailati Venturi.