Koc Holding logo Posted on June 26, 2015 by admin Koc Holding logo Sign - Symbol - Watermark - Trademark - Company logo. The below image is of the Koc Holding logo showing the sign by itself or the logo including the brand name of the relevant organization. Koc Holding logo Tags: koc holding, koc holding brand, koc holding logo, koc holding logos, koc holding sign, koc holding symbol, koc holding trademark