“Green Controlling”: Buzzword or key to successful CSRD implementation?
Anyone who truly wants to embed sustainability in their company must also make it controllable. And this is where controlling comes in: It provides the data, methods, and systems to turn ESG goals into concrete control parameters.
For many ESG managers, this means: The path to an effective sustainability report is not just about content, but also about figures, processes, and IT systems. Controllers are not adversaries, but strategic allies if involved early.
What exactly is "Green Controlling"?
The term ‘Green Controlling’ describes the systematic integration of ecological and social goals into traditional corporate management. It’s not just about environmental costs or CO₂ balances, but about the holistic linkage of sustainability and economic control logic.
The concept was already coined years ago by the Green Controlling Expert Group of the International Controller Association (ICV) coined. However, due to the Corporate Sustainability Reporting Directive (CSRD) and the European Sustainability Reporting Standards (ESRS), it gains entirely new relevance. While sustainability and finance were often considered separately in the past, the CSRD now demands the exact opposite: an interlinked management and reporting world.
Specifically, Green Controlling means:
- Making sustainability goals measurable,
- Integrating non-financial key figures (ESG KPIs) into planning, forecasts, and investment calculations,
- and considering ESG risks and opportunities in risk management.
In other words: Controlling provides the figures and structures so that sustainability is not just a communication tool that looks good on the website, but can be strategically managed and also withstands a CSRD audit by third parties.
What is the role of controllers in the CSRD context?
For many controllers, the CSRD means an expansion of their previous role. Their classic tasks, such as analyzing plan deviations, controlling budgets, and evaluating investments, are now supplemented by new questions:
- Which ESG key figures do we need to collect to meet ESRS requirements?
- How can financial and non-financial goals be managed jointly?
- How do we assess sustainability risks from a financial perspective (outside-in)?
- How do we measure our impact on the environment and society (inside-out)?
What are the new Green Controlling tasks?
What are the challenges for controllers in implementing the CSRD?
- Data Availability & Data Quality: Missing or incomplete ESG data and heterogeneous data sources
- Quantification of ESG Aspects: Difficulty translating non-financial metrics (e.g., human rights, biodiversity, climate risks) into economic impacts
- Integration into Existing Control Logic: Challenges in linking ESG data with traditional financially focused planning, control, and reporting systems.
- Competence and Role Clarification: Unclear responsibilities between controlling, sustainability management, and risk management, as well as a lack of know-how
- Time Horizons & Perspectives: Sustainability topics require long-term planning horizons – but traditional management is geared towards annual or quarterly targets, leading to target conflict dilemmas
- Regulatory Complexity & Dynamics: Constant evolution of regulatory requirements
- Systemic & Technical Requirements: Missing IT systems for automated ESG data collection and processing, as well as a high degree of manual effort and Excel-based interim solutions
- Auditability & Assurance: Challenge of ensuring reliable documentation and traceability of data and methods.
What does this mean for sustainability managers?
For sustainability officers, Green Controlling primarily means one thing: Another important stakeholder should be involved in the work.
Sustainability management has been a cross-functional management task not just since the CSRD. However, due to reporting obligations, sustainability managers can no longer reach their goals safely without the controlling team.
Because: Controllers in many companies are gatekeepers for planning, budget, key figures, and systems. If you want to put your sustainability goals into practice, you need to ensure they are compatible with their logic. This means:
- Sustainability goals need a financial-logical translation to be integrated into control processes,
- ESG key figures must be prepared in such a way that they fit into existing reporting and planning systems.
- Risks and opportunities from the Materiality Assessment must be integrated into financial risk assessment, and this only works through close collaboration.
In short: You need controllers as allies, not as “data service providers” or retrospective auditors.
What should ESG officers do now?
Here are five practical steps you, as a sustainability manager, can take immediately to actively shape Green Controlling:
- Clarify Roles & Create Interfaces: Who in the company is responsible for which ESG data? Who calculates them? Who “owns” them in the report? Which data interfaces already exist and where are they missing?
- Involve Controlling in the DMA: Controllers can evaluate IROs (financial opportunities, risks, and scenarios) and set up the process in an auditable and robust manner. Therefore, they should be involved early, especially in the double Materiality Assessment.
- Develop a Common KPI Logic: Target systems and time horizons (e.g., embedding climate goals in 5-year plans) should be aligned with controlling. Defining a common set of ESG KPIs that are both auditable and controllable is advisable.
- Establish a Common Understanding of Goals: Not ESG vs. return, but thinking of sustainability as an integral part of financial management.
- Institutionalize Collaboration: Regular exchange (e.g., a quarterly ESG steering committee with controlling, sustainability, risk) provides a platform for regular communication.
Interested in a Green Controlling Presentation?
Our CEO Alexander Spahn conducted a workshop at the International Controller Association (ICV) in September 2025 on the ‘Role of Controllers in Sustainability Reporting’. Would you like to receive the presentation?
Then comment ‘Green Controlling’ on his LinkedIn post and he will send you the presentation for free.
Conclusion: Green Controlling Makes Sustainability Controllable
The CSRD demands not only more transparency but also greater controllability. This is precisely where the interface between sustainability and controlling emerges, and this is precisely where Green Controlling originates.
For sustainability managers, this means:
- Those who involve controllers early,
- interlink ESG goals with corporate planning, and
- develop a common KPI logic,
have significantly better chances for effective and robust sustainability reporting.
Controlling is not the “number tamer of yesterday,” but the enabler of sustainable transformation. Because many corporate leaders also have the expectation: ESG must be a business case. And the Chief Sustainability Officer is the one who initiates and actively shapes this collaboration.
