As of March 2025, 39.71% is owned by Indian Promoters and 60.29% by Public.

Top four Promoters holding highest number of shares of Billwin Industries L company are Smita Subrata Dey (15.45 lakhs shares / 36.95%), Subrata Dey (0.90 lakhs shares / 2.15%), Pritish Subrata Dey (22200 shares / 0.53%) and Ritweikaa Subrata Dey (3002 shares / 0.07%).