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QSI America – A Tentamus Company
Global service. Same quality

At QSI America, we specialize in all aspects of honey and agave adulteration, identification, and purity. Our wide-ranging honey testing capabilities encompass all of the following testing and much more: H-NMR Honey Profiling, Honey moisture content, Sugar Profiling (Fructose/Glucose ratio) Pollen analysis for geographical origin, Pesticides (Perizin, Apivar, and Glyphosate), Antibiotics, Labelling review, and more.

In 1954, Dr. Herwarth Duisberg founded the Institute for Honey Research. He was the first in Germany to define parameters for the quality control of honey, which were laid down in various publications.

In 1976, Dr. Bela Talpay took over the management of the institute. In his publication “Specifications for Trachthonige (DLR 5,1985)” he defined the most important honey varieties that were imported to Germany at the time.

In 1989 Dr. Cord Lüllmann took over the management of the institute. In addition to analyzing honey from all over the world, he has expanded the company’s portfolio to include other food and pharmaceutical products. This broad spectrum of analyses was now also reflected in the new company name: QSI – Quality Services International GmbH.

Today, QSI is also involved in EU-funded projects worldwide aimed at improving the quality of end-consumer products.

By joining the constantly growing Tentamus Group of laboratories in 2013, QSI was able to further increase its analytical services and can cover an ever-increasing portfolio of products and analyses within the group.

In 2018 we took all this knowledge and experience and moved it to Corona California to serve our customers in North America through QSI America. We share our location with Adamson Analytical Laboratories Inc. (AAL) , a Tentamus Group Lab, which was founded in 1995 and is an independent analytical service company providing analytical and research service in chemical and Microbiological testing. AAL is located in Corona, California, USA (ISO17025 and FDA Registered / FDA inspected). Equipped with state-of-the-art instrumentation, AAL also has an experienced and knowledgeable staff of well-trained analytical professionals to provide services and supports to food, dietary, nutritional, pharmaceuticals, cosmetics, and personal care industries.

By combining many years of experience and commitment, we ensure the two foundations of our quality policy: maintaining the resilience of our laboratory results in the context of daily routine examinations and our passion for analytical innovations. This is ensured not least by our motivated employees, who are qualified through internal and external training courses.

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