execution, management and administration of all mandates; management, administration of all companies, enterprises, assets, movable and immovable property belonging to individuals and legal entities; promotion, organization, purchase and sale in the field of movable and immovable property, commerce, industry or services, in Switzerland or abroad; execution of all fiduciary mandates, all analyses and advice in the field of finance, taxation, insurance, as well as in the field of personal or group coaching, personal development, artistic field in the broad sense, as well as direct exercise of all activities in these fields and exercise of all convergent activities