About us


Founded in 2001, Aviation Quality Services (AQS) is a full-service provider of safety and quality management solutions in the aviation industry. Besides various audit programs, AQS offers training and services worldwide to provide a long-term effect on operational efficiency and performance. 

Our experience

We were the world’s first IOSA Audit Organization (AO) accredited by IATA in 2003 to audit international airlines according to the IOSA standard. As one of the only two IATA Endorsed Training Organizations (ETO) accredited to conduct the IOSA Auditor Training, AQS is able to train new IOSA auditors on behalf of IATA. AQS is economically fully independent; however, as a 100% subsidiary of Lufthansa Aviation Training, we benefit from the financial backing of Europe’s largest airline group.

AQS in numbers bild AQS in numbers bild

Your benefits

  • Full Service

    From various training courses to the conduct of audits and the implementation of an effective Safety Management System, we are a full-service provider for all your quality and safety needs.

  • Partnership

    We encourage a cooperation based on partnership. Our mutual goal is to develop a long-term strategy for the optimization of your processes while keeping in mind your requirements.

  • Proximity

    Our multilingual and multicultural qualified experts are located all over the world. All of our training courses can be conducted at your premises.

  • Knowledge

    Our experts have an excellent understanding of the aviation industry’s needs and challenges. As one of the biggest AOs in terms of IOSA market share, our auditors remain highly busy and proficient.

  • Flexibility

    We develop training solutions that are tailored exactly to your needs and requirements – with flexible scheduling and customized support.


Quality is teamwork

AQS' team of experts hail from all six continents and each has an extraordinary range of intercultural experience. Our passion for aviation keeps us motivated to strive for continuous improvement.

Home bases

The Aviation Quality Services’ headquarters are located at the Main Airport Center. You can easily reach our office from Frankfurt International Airport. The headquarters usually serve as a venue for our public training courses in Frankfurt.

Our experts are allocated from our headquarters in Frankfurt and home bases in Hong Kong, Dubai, Johannesburg, Miami and Moscow.

Please tap your nearest home base for contact details.


Hand in hand with IATA

AQS was the world's first IOSA Audit Organization (AO) accredited by IATA under the IOSA program. We are also one of the only two Endorsed Training Organizations (ETOs) to conduct the IOSA Auditor Training on behalf of IATA.

Accreditation Certificate
IOSA Audit Organization


Accreditation Certificate
IOSA Endorsed Training Organization


IATA Strategic Partnership Certificate
2015 - 2022


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