QSI is; The first organization authorized by the Turkish Ministry of Environment regarding the National MRV System, The first organization accredited by TURKAK (Turkish Accreditation Agency) on ISO 14065 & ISO 17029, The first organization in Turkey accredited on ISO 14064-1:2018. Turkey’s & EU's largest verification body in terms of Verified Annual Emission Amount and Number of Customers. Accredited on ICAO Corsia program from TURKAK. The first accredited Turkish VVB with the widest ISO 14064-2 scope by the German Accreditation Organization DAKKS. Turkey's largest VVB in terms of Full-Time Lead Verifier and Number of Verifiers The Verification Body that verifies the most airports in the world with ACA accreditation.