methodology
Our scientifically based rating system is being constantly updated and is setting standards for a dynamically evolving market. Our multi-disciplinary team of analysts uses one of the world's most comprehensive set of criteria and is being supported by an independent advisory board and a worldwide network of environmental and social experts. A specially developed quality standard ensures that our analyses hold a high level of reliability and validity.
oekom research analyses the world's most important companies and countries in their role as securities issuer. Our research universe is continuously extended and updated.
oekom Corporate Rating
oekom Universe (approx. 3,000 companies) - coverage of MSCI World, DJ Stoxx 600, MSCI Emerging Markets - sustainability leaders apart from those indexes - small caps from sustainable industries - important non-listed bond issuers - specific client requests | |
oekom Rating Universe (approx. 1,000 companies) - approx. 700 large caps from traditional industries - approx. 180 small caps from sustainable industries - approx. 140 non-listed bond issuers | |
oekom Prime Universe (approx. 550 companies) - approx. 300 large caps from traditional industries - approx. 200 small caps from sustainable industries - approx. 50 non-listed bond issuers |
oekom Country Rating
52 nations incl. BRIC, EU, OECD and important newly industrialized countries (NICs) |




fund managers
