As of June 2025, 69.70% is owned by Indian Promoters and 30.30% by Public.

Top five Promoters holding highest number of shares of Diffusion Engineers company are Prashant Garg (104.45 lakhs shares / 27.91%), Nitin Garg (74.03 lakhs shares / 19.78%), Chitra Garg (61.31 lakhs shares / 16.38%), N K Garg Huf (20.85 lakhs shares / 5.57%) and Neelu Prashant Garg (22400 shares / 0.06%).