Robert Haßler has been working since 1993 in the fields of Sustainability Rating. He is Chief Executive Officer and co-founder of oekom research AG, a Munich-based Sustainability Rating agency providing research to a wide range of institutional investors and asset managers. He graduated in business administration at the Ludwig-Maximilian University in Munich after a two year vocational training in an auditing company. After a six months engagement in the department of Environmental Economics at the IFO Institute, one of the most prominent economic research institutes in Germany, he joined oekom publishing house as co-founder and head of environmental research in 1992. One year later he started oekom's rating activities by winning an international tender. He was managing director of oekom publishing house from 1997 to 2000. In 1999 the sustainability research division of oekom publishing house was transferred into the newly founded oekom research AG. Mr. Haßler is also co-founder of several associations, such as the Corporate Responsibilty Interface Centre (CRIC e.V.) and Forum Nachhaltige Geldanlagen e.V. (German Social Investment Forum) of which he has been member of the executive board since 2001.