The statements in this Sustainability Report generally relate to the whole Group. However, the scope is naturally more limited for some of the reported topics. If data or statements relate only to individual divisions or countries, this is explicitly mentioned in the text and charts.
GRI 102-54, GRI 102-56
This report has been prepared in accordance with the GRI Standards: Core option. It is currently still under review by GRI. The report takes into account of the sector-specific requirements set out in the “GRI Construction and Real Estate Sector Disclosures”. The content has been compiled with the greatest possible care, but has not been externally audited.
GRI 102-52, 102-51
Implenia has continuously reported on sustainability topics on this web platform since 2018. Metrics and information about new projects and initiatives are continually updated. The company makes a thorough revision of all content every two years. Readers thus always have an up-to-date picture of the Group’s sustainability efforts. For environmental reasons we do not produce a printed version.
Determining the main topics
Implenia’s Sustainability Department is responsible for the company’s global sustainability reporting. Working closely with the Sustainability Committee, relevant central departments and divisions, it defines the main content of the strategy and the reporting in accordance with the Group’s five sustainability priorities. The choice of subjects to include was also determined by a materiality analysis based on the Sustainable Development Goals, and by an event involving Implenia’s internal and external stakeholders. The Global Reporting Initiative’s qualitative reporting principles informed the editing of the text, and all content was subject to final review and approval by the Group’s Sustainability Committee.
Principles of greenhouse gas reporting
Reporting of greenhouse gas emissions accords with the internationally established Greenhouse Gas Protocol Standard. In 2019 Implenia extended its collection of CO2 data from Switzerland to Germany, Austria/Romania, France Norway and Sweden. All home markets are therefore covered.
Around 60% of the data is based on verified figures from the Group’s SAP invoice workflow. Half of the rest comes from our own additional collection of data from production facilities, and the other half from reporting by partner companies such as leasing partners.
Implenia calculates greenhouse gas emissions using the “operational control” approach. Emissions from all operations managed by Implenia are entirely attributed to the company regardless of its financial participation. Emissions from all leased and rented assets (properties, vehicles, machinery, etc.) are also treated as Scope 1 and 2 emissions accordingly.
Significant sustainability-related memberships and partnerships
Type of support
Öbu – Netzwerk für nachhaltiges Wirtschaften
Corporate membership and specialist partner
NNBS, Netzwerk Nachhaltiges Bauen Schweiz
Founding and funding member
WWF SEED - Next Generation Living
ETH Partnership Council
Industrial partner for creation of an assistant professorship for innovative and industrialised construction
Compliance with external guidelines
Implenia generally focuses its activities on the following national and international guidelines, norms and standards:
European Convention on Human Rights (ECHR)
United Nations Sustainable Development Goals
Core conventions of the International Labour Organization (ILO)
ISO standards 9001, 14001, 27001
GRI standards (option: Core)
SIA norms in Switzerland
GRI Content Index
For the Materiality Disclosures Service, GRI Services reviewed that the GRI content index is clearly presented and the references for Disclosures 102-40 to 102-49 align with appropriate sections in the body of the report.
Reference(s) and/or direct answers
GRI 101: Foundation 2016
The reporting principles have been applied to define the report content and quality