ESG taxonomy
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Our ESG taxonomy is a comprehensive, standardized framework for assessing and categorizing environmental, social, and governance (ESG) factors in the investment process. It is designed to provide a common language for investors, companies, and other stakeholders to understand and assess the impact of ESG factors on the financial performance of companies and investments.

Permutable strives to provide the best in ESG taxonomy to allow for full extraction of datapoints from global public data-sources.  We use over 1000+ markers to label ESG data. Below are a sample of markers we use on our datasets.  


Clean Water

Supply Chain


Tax Transparency



Staff Health-Care


Data Security

Green Energy

Life on Land

Social Equality

Business Ethics



Pollution / Waste

Health and Safety


Class Action

Natural Disasters


Human Rights



Our methodology for assessing sentiment towards Environmental, Social, and Governance (ESG) factors is both comprehensive and meticulous. It starts with a rigorous daily scan of over 500,000 global articles, utilising advanced AI algorithms and data analytics. Here’s a step-by-step breakdown of our process:

Entity identification –  initially, our machine learning models identify unique entities such as organisations within the text.

Ontology definition –  we then define ontologies, which include specific keywords and phrases related to each ESG topic and subtopic, and apply these to the text to contextualise the data.

Sentiment analysis –  the text, along with recognised entities and subtopics, is submitted to our sentiment model. This model classifies the sentiment as either positive or negative.

Pattern recognition – we monitor sentiment signals over time, identifying both recurrent and rare patterns, such as surges in negative sentiment. These patterns are recognised using historical data to ensure accuracy.

Confidence scoring – confidence scores are then assigned to these signals based on the strength and consistency of identified patterns.

Weighted averaging – the sentiment signals undergo a weighted averaging process across various information sources for each company. This averaging is performed periodically over the last two years to maintain current relevance.

Scoring transformation –  finally, sentiment scores are calibrated on a scale from 0 to 100, where 0 indicates extreme negativity and 100 reflects extreme positivity.