



Shared standards,
transparent approach.
Vireo follows international standards and carries out auditing activities
for organizations with reliability and efficiency, ensuring that compliance
processes are clear, well-structured and internationally recognized.
The GSTC standards that guide
sustainable tourism worldwide.
Hotels, destinations, and tour operators certified with Vireo adopt standards that are recognized and valid at an international level.
International accreditations
We certify according to official standards that are recognised worldwide.
Certifications without delays
Audits and procedures managed with guaranteed timelines, without unnecessary delays.
Guaranteed reliability over time
Clear procedures, transparent results and trust built up over time.
Established Auditor Team
A team of auditors that consistently shares expertise and knowledge.
No hidden costs
Full transparency on fees and services throughout the audit and certification process.
Good Auditing
Direct and transparent reporting, in your preferred language, breaking down bureaucratic complexity.
Rooted in sustainability
We are an organization focused on sustainability, ensuring expertise, precision and reliable results.
+7.300
audits conducted in 15 years of activity
+950
certified companies in Italy and abroad
18
countries in which we are active
90%
of clients renew their certification with us
95%
of audits start within planned timelines
24
hours to initiate the process after the request
Those who have chosen us
certify their sustainability with us.
Frequently
Asked
Questions
To obtain a certification, the company must first contact us and define the most suitable scheme. This is followed by the collection of documents and internal preparation according to the standard's requirements. A Vireo auditor then carries out an on-site (or remote) inspection to assess compliance. If no non-conformities are found, or after they have been resolved, the company receives the official certificate.
Yes. It is possible to integrate different certification schemes into a single audit process, optimizing internal organization and reducing overlaps. A coordinated approach that simplifies procedures and promotes more efficient management.
Our team, made up of qualified auditors and a skilled administrative staff, is always attentive and responsive. We provide constant and timely support, ensuring clear responses tailored to your needs throughout the entire certification process.





