since 1976 ...Duzen Health Group

Duzen Laboratories Group, now Duzen Health Group, founded by Prof. Dr. Yahya Laleli in 1976, has earned a reputation as a national reference diagnostic center that operates in human, food, animal, and environmental diagnosis fields, as well as in agriculture and agricultural biotechnology with its four leading companies:

  • Duzen Laboratories
  • Duzen Polyclinic
  • Duzen-Norwest Environment & Food Laboratories
  • Laleli Olive & Olive Oil Establishment

Duzen Laboratories

A pioneer institution in Turkey in the clinical laboratory area since its foundation in 1976.

A comprehensive suite of diagnostic services through its Clinical Laboratory (biochemistry, hematology, immunology, endocrinology, protein, and specialized chemistry, microbiology, molecular biology, and medical genetics) and Imaging Divisions (radiology, nuclear medicine, cardiology and EMG sections).

A significant focus on clinical research services in its health operations.

Serves over 1,000,000 patients/year and performs around 5 million tests that are mostly esoteric with its specialized doctors and laboratory staff.

The first EN ISO/IEC 17025 accredited company in its field in Turkey and also holds an EN ISO 15189 accreditation.
For more information please visit our web page at

Duzen-Norwest Environment & Food Laboratories

Provides services in food, environment, food microbiology, and environmental microbiology fields since 1998.

EN ISO/IEC 17025: 2005 accreditation since 2005.

Provide customers from various sectors with a range of analysis services from food/feed to wastewater.
For more information please visit our web page at

Duzen Health Center

Serves as a multi-speciality clinic in Çayyolu region since 2014.

Provides onsite services – Medical Laboratory, Radiology, Family Medicine, Cardiology.

A comprehensive clinical test list is available through Duzen Laboratories.

Laleli Olive & Olive Oil Establishment

A family-run farm focused on organic farming and production of high-value extra virgin olive oil rich in antioxidants.

Located around Edremit Bay in the northern part of Aegean See on the west coast of Anatolia, the establishment produces over 700 hectolitres of extra virgin olive oil from 55,000 olive trees yearly.

The establishment’s flagship product, “The Extra Virgin Selection” has received several gold medals in international competitions in recent years.
For more information please visit our web page at