In 2001 Valter co-founded an avant-garde, high-end fashion brand Oktober. Their first women’s collection for Spring-Summer 2005 was internationally presented in Paris during Paris Fashion Week in 2004 and started to attract worldwide attention and first buyers in Japan. In 2006 Oktober opened their first showroom in Milano and after two years moved to Paris and New York. After several women’s collections Oktober added their first men’s collection for Fall-Winter 2007. Oktober sold in more than 50 shops in 26 countries in high-end fashion retailers such as Loveless Tokyo, Galleries Lafayette Paris, Selfridges London, Lotte Seul, Bon Marche Paris, as well as smaller retailers in New York, Los Angeles, Tokyo, Paris, Hong Kong, Milan, Riad, Seul, St Petersburg, Cobenhaven, Bruxelles, Toronto, Athens. Valter sold his share of the company in 2009.