Why Swiss SMEs need to care about ESG

ESG reporting — Environmental, Social and Governance — is no longer reserved for large listed companies. In Switzerland, banks, industrial customers, public authorities and supply chains are increasingly requesting environmental, social and governance data from SMEs with just a handful of employees. This is not a marketing trend: it is a concrete requirement for securing financing, participating in public tenders or maintaining contracts with customers who must in turn report on the sustainability of their supply chain.

For most SMEs, however, there is no legal obligation to publish a full ESG report. The non-financial reporting obligation in Switzerland applies to public-interest entities that, together with controlled companies, exceed for two consecutive financial years at least 500 full-time equivalent positions and one of the thresholds of CHF 20 million in total assets or CHF 40 million in revenue (Art. 964a et seq. CO). SMEs largely fall outside this scope, but remain exposed to market demands: bank questionnaires, contractual clauses, customer ESG due diligence and, indirectly, European regulations such as the CSRD that affect Swiss suppliers to EU groups.

This guide explains which ESG metrics are truly essential for an SME, what Swiss banks specifically ask for, and how to integrate this data into ordinary corporate reporting — without duplicating the accounting work already done with tools such as Accountex.

The three ESG pillars: what to measure in practice

An effective ESG report for an SME does not need to cover everything: it must answer the most relevant questions for your sector and stakeholders. Here is an operational map of the three pillars:

Environmental (E)

Energy consumption and mix (electricity, gas, fuels)
CO₂ emissions (Scope 1, 2 and, if possible, 3)
Waste management and recycling
Water and materials consumption
Production resource efficiency

Social (S)

Number of employees, turnover, absenteeism
Training and continuing education hours
Occupational health and safety (accidents, lost days)
Pay equity and diversity
Conditions in the supply chain

Governance (G)

Organisational structure and separation of roles
Compliance and risk management
Anti-corruption and whistleblowing policies
Data protection (nFADP) and cybersecurity
Transparency towards shareholders and creditors

Essential ESG metrics for Swiss SMEs

You do not need a report hundreds of pages long. For an SME, a targeted set of indicators is enough to answer the most frequent requests from banks and customers. The table below summarises the metrics with the best effort-to-value ratio:

Indicator	Pillar	Data source	Frequency
CO₂ emissions (tCO₂e)	Environmental	Energy invoices, company vehicle data, GHG Protocol calculator	Annual
Energy consumption (kWh)	Environmental	Electricity/gas bills, meters	Annual
Renewable energy share (%)	Environmental	Energy supplier contract, GO certificates	Annual
Workplace accident rate	Social	Accident register, SUVA/insurer	Annual
Staff turnover (%)	Social	Payroll register, HR management	Annual
Training hours per employee	Social	Training register, payslips	Annual
Gender pay equity	Social	Internal pay analysis (Art. 13a EqA)	Every 4 years if not met (≥100 employees)
Documented compliance policies	Governance	Code of ethics, internal regulations	On update
nFADP compliance and data protection	Governance	Processing register, internal audit	Ongoing

The guiding principle is materiality: focus on indicators that reflect the real risks and opportunities of your business. An IT services company will have a different ESG profile from an industrial manufacturer or a construction firm.

What Swiss banks ask for

Swiss banks are increasingly integrating ESG criteria into creditworthiness assessments. The SNB and FINMA have strengthened expectations regarding climate and sustainability risks for financial institutions, with knock-on effects for borrowers — including SMEs applying for investment loans, credit lines or leasing.

In practice, recurring requests include:

ESG questionnairesStandardised forms (often based on international frameworks) to be completed when applying for financing or at the annual credit renewal.
Emissions dataEnergy consumption of premises and company vehicles, with a preference for verifiable data (invoices, certificates).
High-impact sectorsFor activities classified as high climate risk (e.g. construction, transport, manufacturing), banks may require transition plans or investments in energy efficiency.
Sustainability-linked loansSustainability-linked loans (SLL) with interest rates tied to achieving agreed ESG KPIs (CO₂ reduction, training, diversity).
Green financeFor specific investments (solar panels, electric vehicles, building upgrades), documentation proving the use of funds and the expected environmental impact.

Practical tip

Prepare a «light» ESG dossier to update annually: 2–3 pages with key KPIs, data sources and any certifications (ISO 14001, Energie Schweiz, etc.). Having these figures ready speeds up credit applications and demonstrates professionalism to your bank relationship manager.

Swiss regulatory framework: obligations and indirect pressures

In Switzerland, the non-financial reporting obligation (Art. 964a–964c CO and related ordinance) applies to public-interest entities (in particular listed companies, banks and insurance companies) that, together with controlled companies, have at least 500 full-time equivalent positions on average for two consecutive financial years and exceed one of the thresholds of CHF 20 million in total assets or CHF 40 million in revenue. SMEs below these thresholds are not required to publish a sustainability report. A revision project launched in 2024 provides for an expansion of the obligation (two out of three criteria: 250 FTE, CHF 25 million in assets, CHF 50 million in revenue); as of the reference date of 2026, this amendment has not yet entered into force.

Other regulatory references remain relevant, however:

Climate and Innovation Act (ClimA, from 1 January 2025) — goal of climate neutrality by 2050; SMEs can access cantonal and federal incentives for green investments.
Federal Act on Gender Equality (EqA, Art. 13a) — mandatory pay analysis for companies with ≥100 employees; relevant social data for ESG reporting.
New Federal Act on Data Protection (nFADP) — documented governance requirement, often requested in ESG questionnaires.
EU CSRD (indirect effects) — EU customers and partners may request Scope 3 data on the Swiss supply chain.
Art. 964j et seq. CO and Due Diligence Ordinance (DDTrO) — due diligence and reporting obligations on conflict minerals and child labour; relevant for Swiss companies and suppliers in affected sectors.

For SMEs, the most effective strategy is to voluntarily adopt a recognised standard (GRI Standards, VSME or simplified ESRS, Swiss Climate Scores for financial products) in proportion to their size.

Integrating ESG into corporate reporting

ESG reporting should not be treated as a document separate from accounting. Much of the required data already exists in management systems and can be linked to ordinary reporting:

Data already in accounting

Energy and fuel costs → account 6200/6300
Green investments → fixed assets and depreciation
Personnel costs → account 5000–5999
Training → account 6200 or dedicated HR costs
Insurance and social contributions → social data
Travel expenses → basis for Scope 3 emissions calculation

Where to publish ESG data

Management report (Art. 961 CO) — dedicated section
Voluntary sustainability report on the website
Appendix to the financial statements for internal stakeholders
Bank questionnaires and ESG platforms (Ecovadis, CDP)
Commercial contracts and tender specifications

With accounting software such as Accountex, you can structure the chart of accounts with analytical categories that facilitate ESG data extraction: for example, sub-accounts for renewable vs. fossil energy, or cost centres for training and safety. At year-end, a targeted export feeds the ESG report without reworking the figures from scratch.

Implementation in 5 steps for an SME

1

Identify stakeholders and requirements

Map who requests ESG data: bank, key customers, insurers, public authorities. Prioritise the most frequently requested metrics.

2

Define material indicators

Select 8–12 KPIs covering the three pillars. Avoid overload: a few reliable data points are better than many estimates.

3

Organise data collection

Assign internal responsibilities (HR for social, facility manager for energy, CFO for governance). Link sources to accounting and operational registers.

4

Document methodology and limitations

State how you calculate emissions, which Scopes you include, and any estimates. Methodological transparency increases credibility with banks and auditors.

5

Integrate into the closing cycle

Update the ESG report together with the annual financial statements. Compare indicators year on year and communicate progress — even modest progress — to stakeholders.

Costs, resources and return for SMEs

A «light» ESG report for SMEs does not require expensive consultants or enterprise platforms. Here is a realistic cost estimate in Switzerland:

Item	Indicative cost	Notes
Internal setup (first year)	CHF 2'000–8'000	Internal time for data collection and drafting; varies by sector
Emissions calculation (online tool)	CHF 0–1'500	Free tools (FOEN, myclimate) or specialist consultancy
Ecovadis certification	CHF 500–2'000/year	Requested by international industrial customers
External ESG consultancy	CHF 5'000–15'000	Optional; useful for regulated sectors or public tenders
Annual maintenance	CHF 1'000–3'000	KPI updates and bank questionnaires

The return manifests itself in more favourable credit terms, access to tenders and contracts, reduced reputational risk and greater appeal to talent — factors that are increasingly decisive in the Swiss labour market.

Conclusion: ESG proportionate to company size

For a Swiss SME, ESG reporting is neither a luxury optional extra nor an impossible bureaucratic obligation: it is a management tool that connects sustainability, finance and compliance. Starting with a few verifiable metrics, integrating them into existing accounting and updating them at each year-end is the most sustainable approach — in the literal sense of the word.

Accountex supports this journey by allowing you to organise accounting data so that it naturally feeds the ESG report: energy costs, investments, personnel and documented governance coexist in the same management ecosystem. So when the bank or an important customer asks for your ESG data, the answer is ready — based on real figures, not last-minute estimates.