Accredited professionals and organisations offer expert water stewardship advice and services.

We strongly recommend that AWS Standard implementers work with AWS Accredited Service Providers or AWS Credentialed Professionals.

AWS Accredited Service Providers and AWS Credentialed Professionals are organisations and individuals that demonstrate expertise in water stewardship and provide relevant water stewardship services. These services may include conformity assessment, training and consulting.

Accredited and credentialed third-party service providers are required to complete the AWS Standard Systems training and must comply with ongoing requirements set by AWS.

To become certified, we recommend that sites engage an AWS Credentialed Professional or AWS Accredited Service Provider. Audit and certification services may only be provided by an AWS Accredited Conformity Assessment Body (CAB).

Conformity Assessment Bodies

Conformity Assessment Bodies (CABs) are regional or multinational organisations providing ISO and other ISEAL member certification schemes. CABs are independently accredited to relevant ISO requirements and have skilled auditors with knowledge of water stewardship and experience of auditing other social and environmental standards.

Lead auditors of CABs must successfully complete AWS Specialist Training. Other members of the audit team must complete at least AWS Advanced Training. All members of the audit team must also attain AWS Professional Credentialing.


Professional trainers have significant expertise and experience in the implementation and application of the AWS Standard systems. They may also specialise in other social and environmental certification audits and systems.


Consultants provide expert advise on sustainability and water-related matters. They are specialists in environmental management systems, corporate social responsibility, sustainability programs, sustainability disclosure, and social and environmental standards systems.

Engage a Service Provider or Credentialed Professional

A current directory is available on the AWS International website.

Directory of AWS Accredited Service Providers ››

Directory of AWS Credentialed Professionals ››

Get Accredited

Service Providers (Organisations)

If you are a Service Provider wishing to become AWS accredited, visit the links below.

Learn more about accreditation ››

Contact the AWS Accreditation & Training Manager ››

Professionals (Individuals)

If you are a professional trainer or consultant wishing to attain AWS Professional Credentials, visit the links below.

Learn more about professional credentialing ››

Sign up for AWS training ››

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