Real estate agencies; real estate management; real estate appraisal; corporate real estate advisory services; leasing of real estate; estate agency services for sale and rental of buildings; estate agency services for sale and rental of businesses; rental of offices; renting of apartments and flats; rent collection; financial evaluation of real estate; investment advisory services relating to real estate; valuation of real estate; research services relating to real estate acquisition; research services relating to real estate selection; computerised information services relating to real estate; information, advisory and consultancy services, all relating to the aforesaid services