Assessment object
Company and environmental performance
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Company rating method
GreenStars shows a company's level of environmental responsibility from open evidence. It turns seven metrics into one score, publishes the weights, and leaves a clear audit trail.
Assessment object
Company and environmental performance
Scale
0-20 points and five GreenStars tiers
Verification
Public sources and reproducible scoring
01
Companies disclose data across different reports and rules. GreenStars converts this data onto a single scale so that registry participants are compared not by the volume of data provided, but by real changes in their environmental footprint.
02
The base version uses indicators that are most strongly tied to environmental and operating impact.
03
Each indicator receives a score from 0 to 20. The score is then multiplied by an open value and checked using averaging mechanisms that prevent one strong indicator from hiding weak ones.
04
The final score maps to five tiers: Initial, Emerging, Competent, Dignified, and Exemplary. Thresholds are fixed and are not curved to match market averages.
05
GreenStars relies on public reports, sector disclosures, and checkable sources. If a metric cannot be confirmed by at least two sources, it should not lift the score.
Other methods
Voluntary product and service certification
GreenList Product is a voluntary certification system for products and services. A unique model for assessing environmental responsibility, supply-chain transparency, and the maturity of environmental-impact management. The method evaluates not only the properties of a product or service, but also its path from raw materials to disposal.
OpenESG and innovation adoption assessment
ESG+ extends classic ESG assessment. Beyond risk, governance, and disclosure, it checks whether a company changes production through innovation and whether that change has measurable environmental effect.
Open