
Mystery Audits
Discreet evaluations of the complete guest journey, from the first reservation enquiry to departure, measured against your brand standards and the expectations of discerning guests.
Learn more about Mystery AuditsExcellence in hotel audit services

The guest journey, assessed discreetly
Touchpoints covered by a GDI mystery audit
At GDI, we are dedicated to helping hotels around the world achieve the highest standards of quality and guest satisfaction. With a global presence and a deep understanding of the hospitality industry, we specialize in providing comprehensive Hotel Quality Assurance services that ensure your property not only meets but exceeds the expectations of today’s discerning travellers.
Our services cover every aspect of hotel operations, from Brand Standards Audits to Mystery Shopper Services for Hotels , and everything in between. Our tailored solutions are designed to elevate your guest experience and ensure compliance with the highest standards of excellence.

Discreet evaluations of the complete guest journey, from the first reservation enquiry to departure, measured against your brand standards and the expectations of discerning guests.
Learn more about Mystery Audits
Written, pictorial and video standards crafted around your brand identity, so that every team member understands precisely what excellence looks like.
Learn more about Brand Standards & SOP Development
Hospitality-specific learning, delivered through our Training LMS and on-property programmes, aligned with the service gaps that your audits reveal.
Learn more about Training
Thorough reviews of the areas guests never see, from kitchens and engineering to security and statutory records, verified against specifications, documents and invoices.
Learn more about Back of the House & Announced Brand Standards Audits
One proprietary platform for standards, SOPs, audits, licences and pre-opening checklists, with real-time dashboards that give leadership complete visibility.
Learn more about Software ServicesWe are proud to partner with some of the world’s most prestigious hotel brands. Here are just a few of the logos representing our valued clients.












Eleven reasons hotels and hospitality groups choose to work with GDI.
With operations in more than 100 countries, GDI offers a truly global perspective on hotel quality assurance. Our Inspectors are well-versed in local regulations, cultural nuances, and industry standards, ensuring that our assessments are both globally informed and locally relevant.
Our team of over 400 seasoned inspectors brings extensive experience from across the hospitality industry. With more than 100 years of combined experience spent in luxury hotels, our inspectors provide thorough, unbiased evaluations, offering insights that help enhance your operations and guest experiences.
We believe that no two hotels are the same, which is why our consultants take a personalized approach to every assessment. They work closely with your team to understand your specific goals and challenges, delivering customized solutions that enhance your guest experience and drive operational excellence.
With the ability to speak 37 languages, our consultants can communicate effectively with your team, ensuring that nothing gets lost in translation. This multilingual capability allows us to bridge communication gaps and provide clear, actionable recommendations that are easy for your staff to understand and implement.
Every hotel is unique, and we believe your audits should be too. We tailor our services—whether it's Mystery Shopper Services for Hotels, Brand Standards Audits, or Hotel Operational Audits and Evaluations—to meet the specific needs of your property. Our customized approach ensures that you receive the most relevant and actionable insights.
From Mystery Guest Audits in Hotels and Back of the House Audits to Brand Standards & SOP Development and Training Services, GDI covers every aspect of hotel operations. Our comprehensive suite of services ensures that all elements of your hotel’s operations are consistently aligned with the highest standards.
Our software solutions go beyond basic audit tools. We offer a digital platform that manages, tracks, and updates SOPs and brand standards, conducts and analyzes audits, and manages licenses. By linking audit results with automatic training modules, our technology ensures continuous improvement and alignment with the latest standards and best practices.
We understand the dynamic nature of the hospitality industry, which is why we offer our services on an ad hoc basis, without requiring long-term contracts. Whether you need a one-time audit or ongoing evaluations, GDI provides the flexibility to access expert services whenever you need them.
GDI’s audits are designed to ensure full compliance with both local government regulations and international standards. From Hotel Calidad and Tourism Classification Audits to Hotel Classification Audits and sustainability certifications, we help your property meet all necessary criteria to maintain its competitive edge.
GDI is not just another audit company. We differentiate ourselves by offering tailored solutions that reflect your brand's identity and operational goals. We stand out among Hotel Brand Standards Audit Companies by delivering customized, innovative solutions that drive real improvement in your operations.
At GDI, we don’t just conduct audits; we partner with you to drive continuous improvement. As a Leading Quality Assurance provider, our detailed reports provide actionable insights and recommendations that help you maintain the highest levels of quality and guest satisfaction. We are the Alternative to LQA that hotels trust for rigorous, insightful assessments.
Join the ranks of leading hotels that trust GDI to help them maintain excellence in every aspect of their operations. Explore our services and see how we can make a difference in your guest experience.
