Supplier ESG data
What ESG data do customers ask suppliers for?
A practical overview of the ESG information customers often request from manufacturing suppliers.
Quick answer
Start with the request, not the spreadsheet.
There is no universal ESG data list that applies to every supplier. The exact request depends on the customer, industry, product, geography, site scope and platform.
Still, many requests cluster around the same categories: company and site data, energy, greenhouse gas emissions, environmental information, workforce topics, health and safety, human rights, policies, ethics, supply chain and supporting evidence.
Not every category applies.
Use the categories as orientation, not as a universal checklist for every supplier.
Data and evidence differ.
A number answers one question. A source document or calculation trail supports how that number was prepared.
Scope changes the answer.
A site figure, entity figure and group figure are not interchangeable.
Policies are not implementation.
A policy can document a formal commitment. It does not automatically prove that all measures are operating.
The common categories in supplier ESG requests.
Customers usually ask for information that helps them understand the supplier's sustainability, compliance and operational risk profile. The request may be a short spreadsheet, a detailed ESG questionnaire, a procurement portal or a supplier assessment platform.
The categories below are common, but they are not mandatory in every case. A small component supplier, a multi-site manufacturer and a service provider will not always receive the same request.
Company and site information
Legal entity, address, sites, countries of operation, headcount, activities, reporting period and scope of the data.
Environmental data
Energy, emissions, water, waste, recycling, chemicals, incidents, permits and environmental management systems where relevant.
People and safety
Headcount, FTE, training, working conditions, health and safety processes, incidents and relevant HR policies.
Governance and supply chain
Ethics, anti-corruption, grievance channels, supplier requirements, procurement controls and compliance responsibilities.
Energy and greenhouse gas emissions.
Energy and emissions are among the most frequent quantitative requests. Customers may ask for electricity consumption, fuels, purchased heat, renewable energy share, Scope 1, Scope 2 and, where relevant, selected Scope 3 information.
For emissions, the final CO2e number is not enough. The calculation should keep the boundary, activity data, emission factors, methodology, source documents and assumptions traceable.
- Electricity consumption in kWh
- Natural gas, heating oil, diesel or other fuels
- Company vehicles and fuel cards
- Purchased heat, steam or cooling
- Refrigerants where relevant
- Scope 1 and Scope 2 emissions
- Emission factors and calculation method
- Reporting year and site or entity scope
Carbon logic
Boundary - activity data - emission factor - CO2e - method.
Workforce, health and safety, and human rights.
Customers often ask for social data because suppliers are part of their wider value chain. The request may be simple, such as headcount, or more detailed, such as accident indicators, training, complaints channels or human rights policies.
Definitions matter. Headcount, average headcount and FTE are not the same thing. A safety incident rate may require a specific formula and reporting period.
- Number of employees, headcount or FTE
- Employment types and workforce composition
- Training records
- Occupational health and safety processes
- Accidents, lost days and safety indicators where requested
- Human rights, non-discrimination and grievance mechanisms
- Relevant policies and internal responsibilities
Policies, targets and measures are separate concepts.
Many ESG requests ask whether the company has a policy, a target or a measure. These should not be collapsed into one answer.
An approved policy shows a formal company position. A target states an intended outcome. A procedure or measure describes how something is managed. Evidence should match the exact claim being made.
- Environmental Policy
- Health & Safety Policy
- Human Rights Policy
- Code of Conduct
- Anti-Corruption Policy
- Supplier Code of Conduct
- Sustainable Procurement Policy
- Targets, measures and management review records where applicable
Policy is not the same as implementation, and implementation is not the same as evidence.
Customers may also ask for supporting evidence.
A customer may ask for documents that support the answers. Typical examples include policies, certificates, invoices, calculation files, audit reports, training records, procedures and KPI reports.
A document only helps if it supports the specific answer, belongs to the right company or site, covers the relevant period and is current enough for the request.
Use the customer request to decide what to collect.
Do not build a complete ESG data system before you know what the customer actually needs. Start with the request, map the required data, identify data owners, find the source documents, prepare the answer and then review it internally.
The same underlying information can often be reused for later questionnaires, but it should be rechecked against the new context each time.
- Read the exact customer request.
- Confirm scope and reporting period.
- Map each field to a data owner.
- Collect source documents and supporting evidence.
- Prepare calculations where required.
- Record data gaps and evidence gaps.
- Get internal confirmation before submission.
Customer request received
Need to turn the data request into answers?
Send us the customer questionnaire or data list. We can structure the request, identify required data owners and prepare a response package for internal review.
FAQ
Frequently asked questions
Do all customers ask for the same ESG data?
No. Many requests use similar categories, but the exact fields depend on the customer, platform, industry, company scope and supplier relationship.
Do suppliers always need Scope 3 data?
No. Scope 3 may be requested in some situations, but many supplier requests focus first on company information, energy, Scope 1, Scope 2, policies and evidence.
Is a sustainability report enough to answer customer requests?
It may help if it contains relevant and current information, but it does not automatically answer every customer field. Each request still needs to be checked against scope, period and evidence.