Conversely to the United States, lobbying consulting in France is a relatively recent activity and is perceived negatively by a majority of the population. Influencing public decision making is certainly a sensitive occupation at both managerial and societal levels. This is why ethics applied to business can play a central role while establishing the practice of lobbying in France. This paper examines the issues and the practices of ethics in lobbying consulting. The field for this exploratory study is a lobbying consultancy firm based in France. Our research is developed through a three month participant observation and complemented with secondary data on the lobbying profession in France.