SMETA for Service Providers: a clearer, more scalable approach to auditing distributed workforces
Letizia La Sorte
Solutions Expert
20 May 2026
About 5 mins
Auditing service providers has long been one of the most complex challenges in responsible sourcing and supply chain due diligence. Unlike traditional supply chains, service operations often span dozens, or hundreds, of client locations, with workers moving between sites or operating in mobile environments every day.
For procurement and sourcing teams, this complexity has made it difficult to commission audits that are both practical and reliable. Conventional assessment models can fail to reflect real working conditions across dispersed operations.
The updated SMETA for Service Providers methodology is designed to address this reality. It provides a clearer, more consistent approach to auditing businesses with distributed workforces, giving clients the confidence that audits are proportionate, comparable and meaningful, while remaining workable for service providers and relevant for workers.
Why service provider audits need a different approach
SMETA has been widely used to assess labour standards and management systems in goods supply chains. However, service delivery operates differently.
Instead of one fixed site, service providers may work across multiple client locations, small teams, or mobile environments such as transport routes. Workers may have limited contact with a central office, making traditional audit planning and execution more complex.
Previously, this often led to:
- Uncertainty around how sites and workers were selected for review
- Higher audit costs driven by multiple visits and travel
- Rigid audit structures that did not reflect service delivery models
- Limited transparency on audit scope, making results harder to interpret or reuse
For clients, this created friction in audit planning and reduced confidence in how far audit findings could support due‑diligence and sourcing decisions.
A clearer framework for more confident audit planning
The updated methodology introduces one clear framework for client‑site service providers, replacing fragmented approaches with a more predictable and transparent model.
For procurement and sourcing managers, this means:
- Greater certainty when commissioning audits
- Clearer expectations on what an audit will cover
- More consistent outcomes that are easier to compare across suppliers
A formal exception also allows single‑site visits for single‑client audits, where agreed by all parties. This reduces unnecessary complexity while maintaining assurance, particularly for smaller or more focused service contracts.
A more flexible audit model that reflects real service operations
The default model for service provider audits involves the auditor visiting both the head office of the service provider, and locations where the work is carried out. However, the methodology now includes clearly defined, criteria‑based flexibilities that reflect how service work is delivered in practice.
These include:
- Office visits that can be conducted remotely or omitted in defined scenarios
- Office and site visits taking place in parallel where appropriate
- Limited use of off‑site or remote worker interviews where this improves access and where confidentiality can be assured.
These flexibilities reduce travel burdens while preserving robustness, transparency and audit quality – making audits easier to plan without weakening assurance.
Formal recognition of remote audit elements
For distributed and mobile workforces, remote audit techniques are often necessary. The methodology now formally allows remote elements to be used under defined circumstances, such as document review, management interviews and selected worker interviews.
Clear expectations and safeguards are in place to ensure:
- Audit quality is maintained
- Worker confidentiality is protected
- Remote activities are used proportionately and transparently
For clients and service providers, this pragmatic approach enables audits that are more practical and scalable, while maintaining their robustness.
Clearer and more transparent audit scope
To support more informed sourcing decisions, audit scoping is now explicit and consistently documented.
The methodology defines two clear scoping models:
- Multi‑client audits, recommended where feasible
- Single‑client audits, permitted under defined conditions
Audit scope must be agreed at the scheduling stage and is clearly recorded in audit reports. New reporting fields improve transparency, enabling buyers to assess whether an audit meets their due‑diligence requirements and whether findings are suitable for reuse.
Stronger guidance and governance to protect audit quality
The updated approach is supported by strengthened guidance and oversight.
Key improvements include:
- A fully restructured Auditor Supplement, now a standalone operational guide
- Expanded guidance on how auditors should handle client‑ or third-party controlled factors, supporting more consistent auditor judgement
- Refined reporting templates that reduce duplication and improve data relevance
- Enhanced guidance for road transport audits, reflecting mobile workplaces and non‑standard pay structures
Recognising that audits for service providers require different skills and planning, Sedex has also introduced a mandatory approval process for audit firms delivering SMETA audits for distributed service workforces. Approved firms are subject to ongoing oversight, calibration and reporting.
What this means for procurement and sourcing teams
The updated SMETA for Service Providers methodology provides a more practical and reliable foundation for assessing service suppliers operating across complex, multi‑site or mobile environments.
For buyers, it delivers:
- Greater confidence that audits reflect real service delivery models
- More consistent and comparable insights across suppliers
- Clearer scoping and reporting to support due‑diligence and risk management
- Reduced friction in audit planning and commissioning
By aligning audit delivery more closely with how service work actually happens, SMETA for Service Providers now better supports responsible sourcing decisions across global service supply chains.
Learn more
If you are a buyer and want to understand how this approach can support your sourcing decisions, download Assessing ESG Performance for your Service Providers, SMETA for Service Providers Brochure or contact us for further guidance on preparing for a SMETA audit.
