LT - 001 OKTA Crude oil refinery Shareholding Company - Skopje
OKTA Laboratory
LT - 003 University "Ss. Cyril and Methodus"
Faculty of Pharmacy - Skopje
Center for drug quality control
LT - 004 MAKKONTROL doo - Skopje
LT - 005 Institute for Public Health – Skopje
LT - 008 Tehnolab Ltd., Skopje,
Company for technological and laboratory testing, project development and services
LT - 009 Center for public health Tetovo
LT - 010 Center for public health Kocani
LT - 011 Public Institute For Health Protection Kumanovo
LT - 014 Civil Engineering Institute "Macedonia"Skopje
Laboratory for Testing of Construction Materials