Tuvana Büyükçınar Demir, who stepped into the sector in 1999, opened her first store, A46, on Abdi İpekçi Street with her partner and husband Selim Demir and started working in the field of fashion.

Deciding to continue her fashion work in her own workshop, Tuvana Büyükçınar Demir opened her first workshop in Nişantaşı in 2002.

In 2003, he founded the A46 Organization company together with Selim Demir.

In 2005, he achieved one of his biggest dreams by launching the Tuvanam brand. Tuvana Büyükçınar Demir participated in fashion fairs in Paris, New York and Milan, which are considered the fashion capitals, and helped the Tuvanam brand gain an international reputation.

Today, thanks to successful and stable export steps, Tuvanam has become an international brand with 25 sales points in 10 countries.

Tuvana Büyükçınar Demir created special sewing designs for babies under the name "Tuvanam Baby Couture" in 2010. He started to prepare.

In 2014, she founded the brand "3 Moms" with her business partners Emine Kütük and Alara Koçibey, with the principle of adding another dimension and creative vision to children's rooms. In 2016, the 3 Moms brand, which made successful progress thanks to the experience of 3 mothers, grew and launched 3 Homes, which produces architectural interior and furniture designs.

Today, Tuvana Büyükçınar Demir is involved in 4 different sectors and continues her design career successfully.