ESG Communications Strategy: A Practical Guide for 2026
An ESG communications strategy is a plan for telling the people who matter to your organisation, in a consistent and verifiable way, what you are doing on environmental, social and governance issues, how you are performing and what you intend to do next. It starts with stakeholders and evidence, not with slogans. The channels, tone and calendar come last. This guide walks through how to build one, from mapping audiences to avoiding greenwashing and measuring results.
Key takeaways
ESG communication is a strategic process of conveying initiatives, goals and performance to stakeholders, and its purpose is trust, not publicity.
Start with stakeholder mapping, including internal teams, before you write a single message. Silos between legal, sustainability and communications are a common failure point.
Every claim needs evidence you can show: recognised standards, transparent data and, where appropriate, external assurance.
Consistency across reports, website, social media and direct engagement matters more than any single campaign.
Treat measurement as two-way: listen to stakeholders and adjust, rather than only broadcasting.
What an ESG communications strategy is, and what it is not
ESG stands for environmental, social and governance criteria, the lenses used to judge a company’s sustainability and ethical responsibility. ESG communication is the strategic process by which an organisation transparently conveys its initiatives, activities, goals and performance to stakeholders through a range of channels, according to a 2025 study from the University of Zurich’s financial communication research centre.
That definition rules out two common habits. The first is treating ESG as a branding exercise, where a campaign runs ahead of the underlying work. The second is treating it as a once-a-year report, where numbers are published and then nobody speaks about them until the next cycle.
It also helps to separate ESG communication from wider sustainability communication. The Sustainability Management Wiki describes corporate sustainability communication as bringing environmental, social and economic topics into corporate communication to inform, motivate and align stakeholders, using channels that include intranets and briefings. In practice, ESG messaging tends to be more data-led and investor-facing, while sustainability communication often has a broader, more motivational remit. A good strategy covers both, and knows which audience needs which.
If you are still defining the underlying ESG approach, our guide to understanding ESG and ESG strategy development is the place to begin. Communication can only be as strong as the strategy it describes.
Why the purpose is trust
The Zurich study frames the purpose of ESG communication as building trust, showing genuine commitment to sustainability values and supporting long-term resilience by aligning business practice with what stakeholders expect. That framing is useful because it gives you a test for every message: does this help someone trust us more, on the basis of something they can check?
A few practical consequences follow.
Silence is not neutral. Stakeholders who cannot find your ESG information will draw their own conclusions.
Overstatement is costly. A claim that cannot be backed up damages credibility far beyond the claim itself.
Tone follows evidence. When the data is modest, say so plainly and show the direction of travel.
Step 1: Map your stakeholders, inside and out
The same study asked organisations which stakeholders they address most in ESG communication. The answers were employees (77.27%), regulators and supervisors (75.47%), the board of directors (73.64%) and customers (72.48%), as the CRIFC research reports. Investors, suppliers, NGOs and the media follow. The sample comes from Germany and Switzerland, so treat the percentages as an indication of priorities rather than a universal benchmark. The ordering is still instructive: employees come first, which many communications plans overlook.
Start inside the organisation
The C2ES strategic communications playbook describes stakeholder mapping as a foundational step and recommends identifying internal stakeholders such as sustainability, legal and communications teams before approaching investors, customers and regulators. It also notes that internal silos are a major barrier, because legal and sustainability teams often speak different languages.
In practice, this means a short working group before any drafting begins:
Sustainability or ESG lead, who owns the data.
Legal or compliance, who tests every claim.
Communications or marketing, who shapes the narrative.
Finance, where ESG metrics link to financial reporting.
HR, because employees are both an audience and your most credible voice.
Then map the outside audiences
For each external group, write down three things: what they need to know, what decisions they make with it, and how they prefer to receive it. A simple grid does the job.
Audience | What they usually need | Typical format |
Investors and lenders | Decision-useful, comparable metrics, climate risk, governance | Annual report, sustainability report, investor briefings |
Regulators | Compliance with disclosure rules, traceable data | Statutory filings, formal disclosures |
Customers | Credible product and service claims, plain language | Website, product information, packaging |
Employees | Purpose, progress, how they can contribute | Intranet, briefings, team meetings |
Suppliers | Expectations, data requests, support | Direct engagement, supplier portals |
Communities, NGOs and media | Local impact, honesty about problems | Events, press, open dialogue |
Government and regulatory audiences differ by country. In Nigeria, for example, the Financial Reporting Council’s adoption roadmap for IFRS sustainability disclosure standards names professional bodies, regulators, policymakers, academia and the media as critical stakeholders for adopting sustainability reporting standards. If you operate across Europe and Africa, build a separate stakeholder list for each market rather than copying one map across.
Our article on stakeholders and business sustainability goes deeper on identifying and prioritising these groups, and the key audiences of an ESG report shows how their needs differ.
Step 2: Set goals and an integrated narrative
Research published in 2025 in the journal Communication Research and Practice-adjacent literature on ESG as strategic public communication recommends aligning sustainability and marketing teams so the narrative is consistent and integrated, matching business priorities with stakeholder expectations, then setting clear communication goals and choosing channels that allow both dissemination and dialogue. The same research finds that institutions vary in how prepared they are, which supports the case for organisation-wide ESG strategies rather than isolated campaigns.
Turn that into goals you can actually manage. Good ones are specific to an audience and an outcome:
Employees can describe our three ESG priorities and one thing their team does about them.
Our largest customers can find product-level sustainability information without contacting us.
Lenders and investors receive the same figures in our report, our website and our briefings.
Every public environmental claim has a named owner and an evidence file.
Weak goals, by contrast, sound like “raise awareness” or “improve our ESG image”. They give you nothing to measure and invite exaggeration.
Choose three or four material themes
You cannot talk credibly about everything. Pick the themes where your impacts are largest and where stakeholders are asking questions: emissions and energy, supply chain labour standards, diversity and pay, board oversight, or waste and resource use. Then give each theme a baseline, a target and a status. If you have not done a materiality assessment, do that first, because it is the evidence that tells you what to say.
Step 3: Decide what to say, and prove it
What goes into your messages depends on who is reading, but the substance should come from recognised frameworks rather than invented metrics. The ISSB’s IFRS S1 and S2 standards, released in 2023, are structured around the four pillars of the Task Force on Climate-related Financial Disclosures: governance, strategy, risk management, and metrics and targets, and they focus on information relevant to investors, according to Kirkland & Ellis. Those four pillars make a sensible skeleton for investor-facing content even where the standards are not mandatory for you.
Local rules vary. Qatar’s Financial Markets Authority, for instance, says Main Market companies should apply IFRS S1 and S2 as a reporting baseline, and that sustainability reporting requires external assurance by the auditor under international standards, specifically citing ISSA 5000. That is one jurisdiction’s rule, not a global one. Check what your own regulator and stock exchange require, and let your communications reflect it.
For wider reporting, the GRI and SASB joint practical guide shows how the two frameworks can be used together to serve both impact-focused and investor-focused readers. If you report against GRI, our GRI Reporting course covers the mechanics, and the ESG Disclosure course helps teams understand what to publish and why.
A simple evidence rule
Before a number or claim leaves the building, check it against four questions:
What is the source and who owns the data?
What period and boundary does it cover (whole group, one site, one product)?
Which standard or method was used to calculate it?
Has anyone independent reviewed it?
If you cannot answer all four, soften the claim or hold it back.
Step 4: Pick channels and keep the message consistent
The GRI and SASB guide lists the usual channels: corporate websites, sustainability reports, integrated reports, financial reports and social media, plus direct engagement such as workshops and conferences. The academic literature adds a point that matters more than the list. Excellent ESG communication, as the strategic public communication study puts it, requires consistency across every channel, backed by transparent data and sources to limit greenwashing risk.
A workable channel plan assigns each audience a primary and a secondary channel:
Annual or sustainability report: the full, assured record. Everything else points back to it.
Website ESG hub: current data, policies, targets and downloadable datasets, updated on a set schedule.
Investor and lender briefings: the same numbers, framed around risk and strategy.
Internal channels: intranet, team briefings and manager toolkits so staff hear it from you first.
Social media: short, specific updates that link to evidence, not slogans.
Direct dialogue: supplier workshops, community meetings, roundtables.
Social media deserves a note. A 2025 case study of an Italian environmental agency, published by Sant’Anna School researchers, found stakeholders expect clarity and accountability, and want social media used to improve awareness and satisfaction rather than only for announcements. That points to replying, explaining and answering questions, not posting and moving on.
Watch your vocabulary
The C2ES playbook argues that a strong strategy rests on credibility, authenticity and preparedness, and that the term ESG has become politicised in some contexts, so it suggests avoiding it. Whether that applies to you depends on your market and audience. In many European and African reporting contexts, ESG remains the language of regulators, lenders and auditors. A practical middle path: use ESG where your reader expects it (reports, investor material) and plain descriptions elsewhere (“how we cut energy use”, “how we treat suppliers”).
Step 5: Avoid greenwashing
The Zurich study lists the strategies practitioners use to avoid greenwashing: internal training, stakeholder dialogue, ESG benchmarking, transparent communication and external audits. It also names greenhushing, the practice of saying less about ESG to avoid scrutiny. Greenhushing is understandable, but it leaves a vacuum. The better answer is to say what you can prove and be open about what is unfinished.
On environmental claims, two documents give clear principles. The International Chamber of Commerce’s 2025 Environmental Framework says environmental claims must be consistent with applicable law in the relevant region and supported by appropriate substantiating data, including reliable scientific evidence. It also says its general ethical-advertising principles apply to environmental and sustainability claims even where specific terms are not mentioned. The Global Guidance on Environmental Claims sets out six principles for non-misleading claims, including that marketers hold robust evidence for all objective claims capable of substantiation.
If you operate in the UK, your claims are also subject to consumer protection law and advertising rules, so have the Competition and Markets Authority’s green claims guidance and the Advertising Standards Authority’s rules open when your legal team reviews copy. Rules differ across the EU member states and African markets, which is another reason to give legal a seat in the working group from the start.
A pre-publication checklist
Is the claim specific (what, how much, compared with what)?
Does it cover the whole product or business, or only part, and does the wording say which?
Is the evidence on file and recent?
Would a sceptical journalist read it the way we intend?
Do our targets have dates, baselines and interim milestones?
Have we mentioned the difficult numbers as well as the good ones?
Step 6: Measure and improve
Measurement is the weakest part of most ESG communication plans. Reach and impressions are easy to count, but they say little about trust. Better indicators include:
Stakeholder feedback: survey scores or interview findings from employees, customers and suppliers on whether they find your ESG information clear and credible.
Quality of enquiries: investor and lender questions that become more specific, or fewer repeat questions.
Internal alignment: the share of managers who can explain your ESG priorities.
Consistency audits: periodic checks that figures match across the report, website and presentations.
Ratings and assurance outcomes: changes in feedback from raters or assurance providers.
The research supports a two-way approach. A 2025 study in Sustainability found minimal correlation between the sentiment of corporate videos and audience perception on YouTube, which suggests organisations need proactive, two-way engagement to address scepticism, not merely broadcast. Another 2025 paper from Vietnam, in Sustainability as well, found that digital marketing activity improved stakeholder engagement, which in turn drove adoption of environmental management accounting and better environmental performance among listed businesses. Its authors argue digital marketing should be seen as a strategic driver of sustainability performance when it enables two-way engagement, not just promotion. These are single studies from particular contexts, so use them as prompts for your own testing, not guarantees.
Review the plan at least twice a year: once after your main report is published, and once midway through the cycle to adjust.
A 90-day starting plan
If you are beginning from scratch, this sequence is realistic for a mid-sized organisation.
Period | Focus | Output |
Days 1 to 30 | Working group, stakeholder map, audit of existing claims | Stakeholder grid, claims register, list of gaps |
Days 31 to 60 | Material themes, goals, evidence rules, narrative | One-page narrative, approved metrics, review process |
Days 61 to 90 | Channel plan, internal briefings, first updates, feedback loop | ESG web page, manager toolkit, feedback survey |
The claims register in the first month is the most valuable single document. List every sustainability statement your organisation has made publicly, check the evidence behind each, and correct or withdraw what does not hold. It is uncomfortable, and it is the fastest way to reduce risk.
How Exereco can help
Strategy is easier when your team shares a common understanding of ESG. Our Introduction to ESG and ESG Principles courses give communications, legal and sustainability colleagues the same foundations, while ESG Disclosure focuses on what to report. For the wider picture, read about an integrated ESG strategy. To see everything we offer for organisations in Europe and Africa, from news and analysis to advisory, software and events, visit Exereco.
FAQ
What are the main steps of an ESG communications strategy?
Map your internal and external stakeholders, set specific communication goals, choose material themes, gather evidence for each claim, select channels that allow dialogue, and review results regularly. The order matters: evidence and audiences come before messages and channels.
Who should own ESG communications?
No single department should. Sustainability owns the data, legal tests the claims and communications shapes the story, with finance and HR involved. Research on institutional preparedness points to the need for organisation-wide strategies, so name one accountable lead and a cross-functional group.
How do you stop ESG communications becoming greenwashing?
Substantiate every objective claim with robust evidence, benchmark against recognised standards, be transparent about gaps, train staff and consider external audit or assurance. The ICC framework and the Global Guidance on Environmental Claims both expect reliable evidence behind environmental claims.
What is the difference between ESG communication and sustainability communication?
ESG communication usually centres on measurable environmental, social and governance performance for investors, lenders and regulators. Sustainability communication is broader, aiming to inform and motivate a wider set of stakeholders, including employees and communities. Most organisations need both, built on the same facts.
Do small businesses need an ESG communications strategy?
Smaller organisations rarely need a large programme, but they do need a clear, honest account of what they do, because customers, lenders and larger buyers increasingly ask. A short stakeholder map, three or four themes and a claims register is a sensible proportionate start.
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