Why ESG Investing?

Why Sustainable Investing?

Sustainable investing has experienced significant growth in recent years, but it has also faced increasing scrutiny, as more investors and companies use sustainability and climate data and tools to support their investment decision making. Sustainable investing at MSCI began in 1988.1 Our first ESG index was launched in 1990.2 We’ve been rating companies based on industry material environmental, social and governance risks since 1999.3

We’re proud to work with over 3,000 clients worldwide including leading pension funds, asset managers, consultants, advisers, banks and insurers. If you’d like to learn more about integrating sustainability and climate considerations into your investment processes and how MSCI can help, please contact us.

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Our clients

We understand that when it comes to sustainable investing one size does not fit all. Our experience with sustainability data, climate data and frameworks as well as our role developing solutions for many of the world’s investors, has helped us identify common use cases by investor type.

Contact us to learn more about how we can help you integrate sustainability and climate insights.

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Our Solutions

Our products

We aim to be your one-stop-shop for sustainability and climate solutions. Our award-winning,5 gold-standard6 ESG ratings and climate data and research are developed in-house and are integrated across our index, analytics and real asset solutions.

ESG Investing - Our Products

  • ESG Ratings

    MSCI ESG Ratings aim to measure a company’s management of financially relevant ESG risks and opportunities.

  • Sustainability and Climate Data and Solutions

    Our team of experts is focused on in-depth research, ratings and analysis of the environmental, social and governance-related business practices of thousands of global companies.

  • ESG Indexes

    MSCI ESG Indexes are designed to represent the performance of the most common ESG investment approaches by including, re-weighting or excluding companies by leveraging ESG criteria.

  • Climate Indexes

    MSCI offers climate indexes for both Equity & Fixed Income that aim to meet the variety of needs of institutional investors who wish to address climate change.

  • Sustainability Reporting Services

    Our Sustainability and Climate reports are designed to manage evolving regulatory requirements and address your growing reporting needs through a scalable reporting framework, giving you a clear vision of the risks and opportunities ahead.

  • Real Estate Climate Solutions

    Real Estate Climate Value-at-Risk (Climate VaR), a forward-looking and return-based valuation assessment for individual assets and portfolios.

ESG Transparency Tools

Transparency Tools

ESG Transparency Tools content part 1

ESG Investing Related Cards

ESG Investing footnotes


MSCI ESG Research LLC. is a Registered Investment Adviser under the Investment Adviser Act of 1940. The most recent SEC Form ADV filing, including Form ADV Part 2A, is available on the U.S. SEC’s website at www.adviserinfo.sec.gov (opens in a new tab).

MIFID2/MIFIR notice: MSCI ESG Research LLC does not distribute or act as an intermediary for financial instruments or structured deposits, nor does it deal on its own account, provide execution services for others or manage client accounts. No MSCI ESG Research product or service supports, promotes or is intended to support or promote any such activity. MSCI ESG Research is an independent provider of ESG data, reports and ratings based on published methodologies and available to clients on a subscription basis. 

ESG ADV 2A (PDF, 355 KB) (opens in a new tab)
ESG ADV 2B (brochure supplement) (PDF, 232 KB) (opens in a new tab)


1Through our legacy companies KLD, Innovest, IRRC, and GMI Ratings. ESG and climate data, research and ratings are produced by MSCI ESG Research LLC and are used as an input to the MSCI ESG indexes, calculated by MSCI, Inc.

2MSCI KLD 400 Index https://www.msci.com/msci-kld-400-social-index

3Origins of MSCI ESG Ratings established in 1999. Produced time series data since 2007.

4MSCI ESG Research LLC clients

5The Extel & SRI Connect Independent Research in Responsible Investment (IRRI) Survey – 2015, 2016, 2017 & 2018/19

6Deep Data Delivery Standard http://www.deepdata.ai/