In recent years, the sustainability reporting landscape has been transformed. Companies are no longer judged solely on financial performance; supervisors and stakeholders are now demanding transparency, accountability and measurable progress on environmental, social and governance (ESG) commitments. The proliferation of sustainability reporting standards has enabled organisations to communicate their targets and achievements in a more structured way. However, as regulatory requirements tighten and supervisory expectations rise, the challenge is not just to ‘talk the talk’, but to truly ‘walk the talk’—delivering on ESG promises with accuracy, consistency and resilience. How prepared is your organisation?
Historically, sustainability reporting was largely voluntary. Companies chose to disclose information to enhance their reputation and respond to stakeholder expectations. Voluntary frameworks provide principles on what to report, enabling organisations to craft sustainability narratives and set ambitious targets. Yet the voluntary nature of these disclosures often led to inconsistencies in scope, methodologies and data quality.
Today, the regulatory environment is shifting rapidly. Frameworks continue to evolve, and companies are required to provide investor grade, reliable ESG data for their operations and supply chains. The shift from voluntary to mandatory reporting introduces new complexities and risks, including non compliance (such as inaccurate reporting or greenwashing), data quality and integrity issues, and operational and resource strain.
The transition from voluntary to mandatory reporting is creating reporting fatigue. This shift demands more than compliance; it requires a strategic approach to sustainability reporting. Frameworks offer guidance on materiality, transparency, and accountability, helping organisations navigate overlapping standards and optmize reporting efficiency. Undestanding the interoperability between standards and frameworks is crucial to comply with sustainability regulations.
At the heart of effective ESG reporting lies data—data that must be accurate, coherent, consistent and compliant across the organisation. Collecting, managing and controlling this data is a formidable challenge, especially for global companies with decentralised operations. ESG data is inherently diverse, originating from multiple departments (manufacturing, operations, human resources, supply chain), multiple regions and external partners. Each data point—whether it relates to emissions, water use or social impact—may be measured using different metrics, systems and methodologies.
Moreover, as data flows from local operations to regional clusters and then to central reporting functions, it undergoes multiple layers of aggregation and consolidation. Without structured data governance, clear processes and robust controls—underpinned by regulatory requirements—the risk of errors, inconsistencies and inaccuracies increases, undermining the credibility of the final sustainability report.
To address these risks, companies must move beyond ad hoc data collection and compliance exercises. The foundation of a resilient ESG strategy is a comprehensive, compliant data framework—one that defines data requirements, maps sources and establishes clear processes for data extraction, generation, adjustment, transfer, review, consolidation and reporting.
At each stage of the data journey, robust controls are essential. This includes compliant review processes (such as the four eyes principle), spot checks and both manual and automated validation mechanisms. Integrating ESG legal requirements into the internal controls' framework—mirroring the rigour of financial reporting—helps ensure that sustainability data is accurate, compliant and defensible.
Technology plays a critical role. By leveraging automation, analytics and modern information systems, companies can streamline data collection, reduce manual effort and improve the speed and accuracy of reporting. Realtime data visualisation and analytics help teams identify trends, flag anomalies and make informed decisions—turning ESG data from a compliance burden into a strategic asset.
Realtime data visualisation and analytics help teams identify trends, flag anomalies and make informed decisions—turning ESG data from a compliance burden into a strategic asset.
The regulatory environment for sustainability reporting is increasingly intricate and dynamic. Organisations must comply with existing rules and prepare for what is coming next. This demands a forward-looking approach: understanding what ESG data will be required, how it will be measured and how industry peers are adapting to new legislation.
All sustainability claims must be substantiated by reliable data and transparent methodologies. Both over disclosure (providing excessive or irrelevant information) and under disclosure (omitting material ESG information) can expose organisations to regulatory penalties, legal liability and reputational harm. Maintaining stakeholder trust requires a balanced, accurate and well governed approach to ESG reporting, underpinned by robust data management and continuous monitoring of the regulatory horizon.
To build regulatory resilience in ESG strategy and governance, companies should adopt a structured, phased approach that fully integrates the regulatory dimension, including evolving reporting standards, anti-greenwashing requirements, due diligence obligations and regulations affecting products, services and consumer protection.
At PwC, we have supported many organisations in building regulatory resilience in their ESG strategy and governance. Our approach is grounded in deep regulatory knowledge, practical experience and a commitment to helping clients deliver on their sustainability promises. We work with companies to:
By partnering with PwC, companies can move beyond compliance to build trust with investors, customers, employees and society at large. Reliable, transparent and resilient ESG reporting is not just a regulatory requirement—it is a strategic imperative that underpins long-term business success.
The journey to robust ESG regulatory reporting is complex, especially as supervisory expectations continue to rise. Companies that ‘walk the talk’ by delivering accurate, consistent and transparent sustainability data—while meeting evolving reporting standards, anti-greenwashing rules, due diligence obligations and consumer protection requirements—will not only satisfy regulators but also build lasting trust with stakeholders, enhance their reputation and position themselves for success in a rapidly changing world. Building resilience is not a onetime exercise; it is an ongoing commitment to excellence, integrity and sustainable value creation.
Partner, Sustainable Capital and Sustainability & Strategic Regulatory Leader, PwC Switzerland
+41 58 792 45 23
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Monica Cohen-Dumani
International Tax Services, EMEA ITS Leader, PwC Switzerland
Patricia Costa
Director, Sustainability & Strategic Regulatory, PwC Switzerland
+41 58 792 44 00
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