Kogan opened her own independent industrial design studio in New York, becoming one of the first women to do so.
In 1929, Belle Kogan established her own independent industrial design consultancy in New York City, making her one of the earliest women — and among the earliest professionals of any gender — to run a solo industrial design practice in the United States. At the time, the field of industrial design was in its infancy, having emerged from the merger of engineering, art, and commerce during the interwar period.
Kogan's studio took on clients across a wide range of industries, from housewares and glassware to plastics and metal goods. Her leadership of an independent firm — rather than working under a male designer's name, as was common for women in design at the time — was a significant barrier-breaking achievement. It allowed her creative vision and business acumen to be recognized directly under her own name.
This early entrepreneurial move set a precedent for future generations of women designers who sought autonomy and recognition in a field otherwise dominated by men such as Raymond Loewy and Henry Dreyfuss. Kogan's studio would go on to produce award-winning designs for companies including Boonton Molding Company, Bakelite Corporation, and Red Wing Potteries, cementing her reputation as a design innovator.