Success Story: Sustainability Reporting at Munich Re

Success Story: Sustainability Reporting at Munich Re - Central ESG Data Platform for Efficient Processes and Quality-Assured Data

About Munich Re

Munich Re is one of the world’s leading providers of reinsurance, primary insurance and insurance-related risk solutions. The Group consists of the reinsurance and ERGO business segments, as well as the asset manager MEAG. Munich Re is globally active and operates in all lines of the insurance business. Since it was founded in 1880, Munich Re has been known for its unrivalled risk-related expertise and its sound financial position. The company provides its clients with financial protection even in the event of extraordinarily large losses — from the 1906 San Francisco earthquake to Hurricane Ida in 2021. Munich Re is highly innovative and able to insure exceptional risks such as rocket launches, renewable energy projects, and cyber risks. The company plays a leading role in driving digital transformation within the insurance industry, expanding both its risk analytics capabilities and its service offering. Tailored solutions and close client relationships make Munich Re a trusted risk partner for companies, institutions, and private individuals worldwide.

The Challenge:

Complex Requirements Meet Fragmented Structures

As ESG regulatory requirements continued to increase — particularly through CSRD, the EU Taxonomy, and SFDR — the complexity of reporting requirements grew significantly.
The ESG data foundation was shaped by a heterogeneous system and data landscape: multiple sources covering all asset classes across the entire investment universe, different formats, distributed responsibilities, and at the same time, high demands for consistency, traceability, and auditability. Ongoing changes from the EU and legislators also required a solution that could be flexibly expanded and scaled to accommodate new requirements.

As part of the Group-wide sustainability reporting program, the project aimed to establish an audit-ready data and reporting foundation for investment-related ESG metrics — embedded in the IFRS Group balance sheet logic and suitable for consistent disclosure as well as internal management.

The Solution:

ESG Data Service as the Central Foundation

Together with BIG.Cube, Munich Re built a central ESG Data Service. To achieve this, various internal and external ESG data providers were connected and integrated with existing portfolio data sources within a consistent logic.
The data is harmonized, consolidated, and made available for further calculations and reporting. This enables a wide range of requirements to be served reliably — from local usage to Group reporting.

To support the growing number of stakeholders and use cases in a structured way, the ESG Data Service was designed modularly and expanded in scalable implementation blocks. Data is provided through multiple channels based on demand.

It is consumed by Group reporting, Client Investment Reporting, and the sustainability and risk departments.

The ESG Data Service provides the foundation for:

Consistent sustainability reporting across the Munich Re Group
GHG attribution and further data processing
Integration into existing management and reporting processes

The Result:

ESG Reporting Based on Consolidated and Quality-Assured Data

Operational sustainability reporting is performed locally through various access options and is available on a monthly basis for analysis and reporting.
A particular focus is placed on ensuring data quality. Using BIG.Cube’s Q-THOR tool, automated data quality checks were implemented that can be continuously updated by the business department, including transparent validation logic and auditability.

The ESG data is provided in alignment with the Group balance sheet logic. This enables clean integration into existing finance and management mechanisms and supports consistent steering over time.

Implementation took place in agile workstreams through an interdisciplinary team of ESG, data, and SAP experts working closely with the responsible business departments. By the end of March 2026, the program had run over multiple years and included several development iterations.

During this period, a large number of ESG data points were connected. Applied to portfolio data, these data points are used to derive ESG KPIs and flags that support the sustainability report, serve as input for external reporting, and help derive strategic ESG investment targets, such as decarbonization.

The Value:

Sustainability as an Integrated Management Dimension

With the implemented solution, Munich Re now has a scalable and auditable ESG data and reporting architecture that meets regulatory requirements while providing a robust foundation for further developing ESG steering and tracking the Group-wide climate ambition.

Sustainability reporting is no longer viewed in isolation. Instead, it is embedded as an integral part of corporate management.

BIG.Cube quickly understood our requirements and implemented them together with us in a consistent data and reporting solution. What I particularly appreciated was the pragmatic way of working, the transparency throughout the process, and the combination of ESG and SAP/data expertise — with the result that Munich Re can now provide ESG data in an audit-ready and management-relevant way.

Claus-Michael Müller, Munich Re IT, Head of ESG & Client Investment ReportingMunich Re

Download the Success Story

Learn how Munich Re worked with BIG.Cube to build a central ESG Data Service — enabling Munich Re to provide ESG data in an audit-ready and management-relevant way. Download the full Success Story now and discover more about the solution, implementation, and business value.