Q. How do I find ratings/research on sustainable companies?

For rankings see:

• Good Company Index rankings 
• Corporate Social Responsibility Index ranking 
  Boston College Center for Corporate Citizenship and Reputation Institute; 50 companies.
• Global 100 Most Sustainable Corporations in the World 
• Corporate Responsibility magazine 
  100 Best Corporate Citizens + the "Black List"
• EthiSphere World's Most Ethical Companies
• Transparency International Index
  Includes: Corruption Perceptions Index, Global Corruption Barometer, Bribe Payers Index, Promoting Revenue Transparency, Transparency in Reporting on Anti-Corruption, & other regional and national surveys and indices.
• Fortune's Best Companies to Work For
• Forbes Magazine "100 Most Sustainable Companies of 2020"
• Dow Jones Sustainability Indexes
• FTSE4GOOD Index Series
• Board Shareholder Confidence Index
  UToronto Rotman School of Management; ranks Boards of Directors of S&P/TSX companies

For research, search for news articles on sustainability or on the name of a company you're interested in learning more about. See databases:

• Business Source Complete
• ABI Inform

Additionally, consider looking at the company's annual report in Mergent.