"Thanks to Promena, we have the opportunity to finalize our purchasing projects with many participants in a transparent e-Tender environment within 1-2 hours. In general terms, these negotiation processes take weeks.When we consider the financial benefits of an online competition, Promena offering an excellent on-demand e-Auction Service with an experienced …

"We are the office of GfK Turkey and as such we sought to identify business partners who could reinforce our high performance culture in the field of quantitative and qualitative research, data collection and processing. As a result, we chose one Promena e-Sourcing system, who works under Koç Holding - …