Sustainability indices

Sustainability indices


Snam has been confirmed among globally recognised companies included in the "A- List" from CDP (formerly the Carbon Disclosure Project). This index selects companies that stand out globally for their commitment and transparency in combating climate change.


On December 2022 Snam has been reconfirmed in the FTSE4Good Index Series, where the Company has been listed since 2002

Sustainability indices

In the Dow Jones Sustainability World Index, the most prestigious global stock exchange index for Corporate Social Responsibility, Snam obtained an overall score of 87 points

The Snam stock is included in the main international SRI (Sustainable and Responsible Investment) stock market indices, an acknowledgement that provides investors with greater transparency in market communications and greater comparability with the Group's peers, as well as making the Company more visible to investors and to the financial market as a whole.


Investors classified as ESGs within Snam's shareholders base represent 39.9% of total institutional shares and 17% of total shareholders (Nasdaq analysis).

Dow Jones Sustainability Indexes

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In November 2021, Snam stock has been included for the thirteenth time in the Dow Jones Sustainability World Index of S&P Global, the most important global stock exchange index for assessing corporate social responsibility. The result, equal to 87 points (in line vs 2021), places the company in third place in its subsector, after the best performer (91 points).

Summary of the scores obtained by Snam in the 2022 Assessment compared to those obtained in 2021 (between brackets)

Total points 87 (87)
Economic Dimension 84 (84)
Environmental Dimension 91 (91)
Social Dimension 86 (86)



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Following the December 2022 Index Review, FTSE International has informed that Snam has been independently assessed according to the FTSE Environmental, Social, Governance (ESG) methodology and it has been reconfirmed with a score of 3.8 out of 5 in the FTSE4Good Index Series, where the company has been listed since 2002.
FTSE4Good was created by the FTSE Group to facilitate investments in companies that meet globally recognised corporate responsibility standards and constitutes an important reference point for the establishment of benchmarks and ethical portfolios. Companies in the FTSE4Good Index have met stringent environmental, social and governance criteria, and are therefore potentially better positioned to capitalise on the benefits of responsible business practice.

Summary of the scores obtained by Snam, according to the FTSE ESG Ratings Methodology  

Total points 3.8
Governance 4.8
Environment 3.3
Social 3.7


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In October 2022 the Snam stock was confirmed in the two MSCI World ESG and MSCI ACWI ESG indices with the score AA (vs A in 2021).
MSCI is a leading provider of investment decision support tools to investor globally, including asset managers, banks, hedge funds and pension funds. MSCI Global Sustainability Indexes include companies with high ESG ratings relative to their sector peers (disclaimer).


Risultati immagini per cdp disclosure

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Snam has been confirmed among globally recognised companies included in the "A- List" from CDP (formerly the Carbon Disclosure Project). This index selects companies that stand out globally for their commitment and transparency in combating climate change.
This result witnesses Snam's efforts to reduce greenhouse emissions and manage climate risk. After committing, as one of the first in its industry, to achieving the objective of net zero Scope 1 and 2 CO₂ equivalent emissions by 2040, Snam has set targets for 2030 on indirect Scope 3 emissions, becoming the first energy infrastructure company in the EU to set emission reduction targets for its suppliers and subsidiaries. Snam's commitment is in line with the target of limiting global warming to 1.5° C.


CDP (formerly the “Carbon Disclosure Project”) is one of the world’s leading not-for-profit climate change organizations, assessing transparency in the disclosure of information on climate change and greenhouse gas emissions, as well as in the management of water resources. Snam’s collaboration with CDP dates back to 2007, when the company started taking part in the assessments carried out by this organization.

ET Index Research

CDP driving sustainable economies


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ET Index Research, an independent research body, which ranks the world’s largest companies according to greenhouse gas emissions and disclosure, released its annual ET Carbon Rankings on 5th December and named SNAM as an Industry Carbon Leader for 2016. SNAM wins the award for ranking top of the SICS (Sustainability Industry Classification System) Oil and Gas (Midstream) Industry. The Engaged Tracking (ET) Carbon Rankings are compiled from publicly available emissions data taken from company sustainability reports, annual reports and websites. An ET Industry Carbon Leader is defined as the most carbon efficient company within its SICS Industry publishing complete Scope 1 & 2 data, as defined by the ET Carbon Ranking methodology.

United Nations Global Compact 100

UN Global Compact

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Snam has been selected for inclusion in the United Nations Global Compact 100 (“GC 100”), a global stock index developed and released by the UN Global Compact in partnership with the research firm Sustainalytics. The index lists the 100 companies which globally outstand for executive leadership commitment and consistent baseline profitability, as well as their adherence to the Global Compact’s ten principles, on human rights, labour, environment and anti-corruption issues. 


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Snam is included in five of the most important ECPI Ethical indexes. Since the 2008, Snam has been included in the following ECPI Ethical Indexes:
  1. ECPI Global Developed ESG Best in class Equity
  2. ECPI EMU Ethical Equity
  3. ECPI Euro Ethical Equity
  4. ECPI Euro ESG Equity
  5. ECPI World ESG Equity

The certification was carried out by ECPI (now part of Mittel S.p.a., a company listed on the Milan stock exchange), a leading provider of sustainability research, ratings and indices since 1997. ECPI’s methodology consists of screening based on over 100 ESG indicators (environmental, social, governance, etc.) grouped into different macro categories (environmental strategy and management, products and production processes, stakeholder relations, Corporate Governance and compliance with international standards) to monitor more than 4,000 issuers.

 > Download the Ethical Index Constituent Certificate (54 kb)


Oekom research

Snam has been confirmed in 2021 at the "PRIME" level by ISS ESG, with a rating upgrade from B- to B. The assessment takes place every two years, the next one will be held in 2023. ISS ESG purchased the Oekom Research service , a leading international rating agency for socially responsible investments, which operates on behalf of institutional investors and financial services companies.


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Snam shares have been reconfirmed in the  STOXX Global ESG Leaders Indices (where the Company has been listed since 2011), a group of indices based on a fully transparent selection process of the performance, in terms of sustainability, of 1,800 companies worldwide.

The ratings are calculated for three sub-areas – environmental, social and governance – and are then combined to form the overall index. The indices are managed by STOXX, the owner of some of the most important international stock indices, such as the STOXX50. 





Vigeo-Eiris, a leading european expert in the assessment of the  Companies  in the Corporate Social Responsibility (CSR) management, on july 2020 reconfirmed  Snam in the following indices, which select the most advanced companies  in the performance on environmental, social and governance issues:


  • Euronext Vigeo Eiris Europe 120: the 120 most advanced companies in Europe 
  • Euronext Vigeo Eiris Eurozone 120: the 120 most advanced companies in Eurozone region 



Ethibel Europe

Ethibel global

Ethibel Europe



On september 2019 Snam  has been reconfirmed as a constituent of the Ethibel Sustainability Index (ESI) Excellence Europe  and the Ethibel Sustainability Index (ESI) Excellence Global. Snam has been also reconfirmed for inclusion in the Ethibel PIONEER and Ethibel EXCELLENCE Investment Registers since 01/02/2017: this selection by Forum ETHIBEL ( indicates that the company can be qualified as a sector leader in terms of Corporate Social Responsibility (CSR).




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On February 2023, Sustainalytics confirmed Snam in its ratings with a risk rating of 14.1 (15.9 in February 2022) and a ranking of first position out of 94 companies in the gas utility sector (2nd out of 93 in 2022). Sustainalytics is a global leader in ESG and Corporate Governance research and ratings and supports hundreds of the world’s foremost investors who incorporate ESG and corporate governance insights into their investment processes.

Standard Ethics

standardethics Go to:


Standard Ethics (brand active since 2004) is a "Self-Regulated Sustainability Rating Agency" that issues non-financial sustainability ratings. Since the beginning of its activities, Standard Ethics has offered its services exclusively to corporate clients requesting the rating (Applicant-Pay Model) and no advice is provided to investors. For benchmarking purposes, the Agency issues unsolicited ratings.
The Standard Ethics rating is an opinion on the distance between issuers and the international sustainability standards promoted by the European Union, the OECD and the United Nations.
Snam's current Corporate Rating is "EE-"Outlook Positive. The company is a component of the Standard Ethics Italian Index and the Standard Ethics European Utilities Index.
The “ESG Euro commercial paper programme” is currently rated "EE".



In 2021, for the first time, Snam has been included and awarded with an A rating in the GLIO/GRESB ESG public disclosure quality, an index that recognizes the transparency and the quality of the information provided by companies in the ESG area.

For further information: GLIO/GRESB ESG Index


Bloomberg Gender Equality Index (GEI)


For the fourth consecutive year, Snam has been confirmed in the Bloomberg Gender Equality Index (GEI), which measures the performance of companies with respect to issues of gender balance, inclusion and disclosure transparency.
An award given to 418 companies from 45 countries and 11 different sectors, from finance to technology and utilities.
Compared to 2022, the positioning improved by about two percentage points totaling 79.07% (GEI score) and growing above all in the policy sections to combat harassment at work (+20.0%), equal pay (+5.88 %) and pro-women brand (+5.36%).

performance of the indexes

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Investor Relations

Find out more about the financial issues in the Investor Relations section

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Find out more about the Snam Sustainability issue addressed specifically to Snam’s shareholders

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21 February 2023 - 18:05 CET