A procurement and supplier solutions platform, Promena was founded in 2001 with the partnership of Koç Holding and The Carlyle Group to provide companies with the top-flight of efficiency, active control, cost, time & labor savings in their procurement processes, integrating global and regional market knowledge with hi-tech. It has been operating under KocZer a wholly-owned subsidiary of Koç Holding since 2013.

Promena is internationally strengthening its global position thanks to its business partners and customers each passing day.

The very first brand of Türkiye in its industry - Promena, still holds the market leadership as a pioneer in strategic procurement & supplier solutions through its innovative solutions such as e-auction and e-procurement.