In recent months, much in the world of sustainability has revolved around the topic of reporting: discussions about the CSRD, new EU omnibus proposals, and initial practical implementations in companies. It’s no wonder that this means enormous additional effort and, in some cases, a completely new dimension of transparency for many businesses.
However, sustainability is not limited to tables, key figures, and mandatory reports. Even if not all companies are directly affected by the reporting obligation, all face the same challenge: How do we showcase what we are already doing? How do we credibly communicate our efforts to customers, employees, investors, or the public?
This sustainability communication overview is where this comes in. It is the ‘more’ beyond mere reporting – not a must, but an opportunity. An opportunity to tell stories, build trust, engage stakeholders, and make sustainability a tangible part of the corporate identity.
In this article, we therefore do not look at paragraphs and auditing guidelines, but at the question: How can effective sustainability communication be achieved, and what needs to be considered?
Sustainability Reporting: The Mandatory Part
In recent months, the topics of CSRD and ESRS, the current EU omnibus proposals, and discussions surrounding the VSME have dominated the headlines. While large and capital market-oriented companies remain obliged to report, this obligation is to be dropped for small and medium-sized enterprises. However, they too have long become part of the debate: Customers, business partners, and investors are increasingly aligning their expectations with sustainability reporting – regardless of legal obligation.
What is special about sustainability reporting is its clear character: fact-based, structured, and strongly tied to regulatory requirements. It creates transparency on paper – comparable and verifiable.
However, numbers alone rarely create emotional connection or motivation. This creates a communication gap: The report is indeed mandatory (for some companies), but it does not answer the central question of how sustainability is lived in everyday life.
This is exactly where sustainability communication comes in: It turns data into stories, translates facts into messages, and opens dialogue with stakeholders.
Sustainability Communication: The Opportunity
While reporting primarily provides numbers and facts, sustainability communication opens up the space to bring these contents to life. It is not aimed at auditors or authorities, but at the people surrounding the company: customers, employees, investors, partners, and the public.
Unlike mandatory reporting, this is not just about the ‘what,’ but also about the ‘how.’ Sustainability communication tells stories, makes progress visible, highlights challenges, and invites dialogue. It creates closeness, trust, and identification. Things that a sober report alone cannot achieve.
It thus becomes clear: Those who not only document sustainability but actively communicate it, transform obligation into distinction. This sustainability communication overview shows that it is a central building block for credibility and differentiation in the market.
Why Reporting Alone Is Not Enough
A sustainability report according to CSRD or VSME fulfills a clear function: It creates transparency and comparability. But stakeholders expect more today. They don’t just want to read data, but understand what stance a company takes, what values it represents, and what contribution it makes.
Limiting oneself to reporting alone wastes potential:
Customers want to know how sustainability specifically improves their product.
Employees seek orientation and meaning – not just key figures.
Investors are increasingly paying attention to the credibility of the strategy, not just the data situation.
Society & Media react to stories and clear positioning, not to tables.
This is where sustainability communication comes in: It transforms mandatory content into distinction. It answers the ‘why’ questions that a report cannot. And it ensures that sustainability is perceived not just as a regulatory necessity, but as part of the company’s identity and future viability.
Legal Framework Overview in Sustainability Communication
Whoever communicates sustainability assumes responsibility – not only towards stakeholders, but also in a legal sense. Because the line between authentic communication and potential greenwashing is narrow. While Chapter 4 has shown why reporting alone is not enough, the question now arises: What can a company actually say in its sustainability communication – and under what conditions?
This is exactly where we return to the topic of regulation. The EU wants to ensure that consumers do not receive empty promises, but clear, verifiable statements. With the EmpCo Directive and the originally planned Green Claims Directive, there are now binding or planned frameworks that determine how sustainability may be presented in communication.
EmpCo Directive as an Active Regulatory Framework
- In force since March 2024, transposition into national law by 2026, binding from September 2026. The Federal Government’s draft bill is available.
- Goal: clear rules to protect against greenwashing and social washing.
- Prohibition of imprecise terms such as “climate neutral,” “sustainable,” “environmentally friendly,” unless supported by robust evidence.
- Transparency obligations: Statements such as “climate neutral by 2030” are only permissible with genuine interim targets and reduction plans.
- Consequences for violations: significant fines and considerable loss of reputation.
Status of the Green Claims Directive (GCD)
- Planned as a supplement to EmpCo with even stricter proof requirements.
- Trilogue negotiations were ongoing at the beginning of 2025, but the process has been halted since June 2025; a final implementation is currently uncertain.
- Companies should nevertheless keep an eye on developments, as the discussion shapes the market and stricter standards are possible in the long term.
Opportunities and Practical Approaches
Regulation sets clear guardrails – but within these limits, a wide range of possibilities opens up. Sustainability communication is more than avoiding greenwashing: It can become a real opportunity to build trust, differentiate brands, and inspire employees.
Formats and Channels
- Website & Social Media: Showcase current projects, progress, and daily insights.
- Employee Communication: Internal newsletters, workshops, or town halls to embed sustainability in the culture.
- Products & Services: Highlight sustainability aspects transparently on the product itself or in the sales process.
- Dialogue Formats: Stakeholder dialogues, panels, or customer feedback rounds create closeness and resonance.
Storytelling Instead of Columns of Numbers
Stakeholders don’t want mere blocks of facts, but comprehensible stories. Successful sustainability communication means: openly addressing challenges and learning processes – that appears more credible than glossy messages.
Added Value for the Company
- Employer Branding: Sustainability makes employers attractive.
- Brand Reputation: Precise communication strengthens trust.
- Investor Relations: Shows future viability and reduces risks.
- Customer Loyalty: Sustainability as a distinguishing feature in competition.
From Obligation to Opportunity
Sustainability reports – whether mandatory according to CSRD and ESRS or voluntary – create transparency. However, they alone are not enough to truly reach stakeholders. This sustainability communication overview shows how sustainability can become tangible through communication: It translates facts into stories, creates dialogue, and strengthens trust.
The legal frameworks, such as the EmpCo Directive, set clear limits: Only precise, verifiable statements are allowed. But precisely this binding nature also offers an opportunity: Those who carefully review and honestly design their communication gain credibility instead of losing it.
It thus becomes clear: Communication is not just an “opportunity,” but a strategic success factor. It helps to make sustainability visible as part of the corporate identity – and thus differentiate oneself in the market.
