Standart Kontrol ve Test Hizmetleri, was established in Istanbul as a fully independent testing center of Turkey, primarily for Military and Civilian Tests.

It has Turkey's largest privately funded test areas in terms of volume and capacity usage. STEST has taken its place among the leading companies in the sector in a very short time and has served many local and foreign companies. provides testing services.

STEST, with the contract signed with TSE, ATP (Insulated Equipment and Device Type Testing).

With the TS EN ISO/IEC 17025 audit carried out by TÜRKAK (Turkish Accreditation Agency), it has become one of the largest test infrastructures of Turkey, built on an area of 6000 m².

In the scope expansion audit carried out by TÜRKAK, a total of 72 test parameters, including 23 test parameters in the field of automotive tests, including EN 10263, EU 2015/208, ECE R10 and many European Union (EU) standards, were included in the scope of accreditation. Today, it provides service and solution partnerships to many domestic and foreign organizations internationally, with over 100 national/international standards.