As of June 2025, 67.88% is owned by Indian Promoters and 32.12% by Public.

Top five Promoters holding highest number of shares of Adtech Systems company are Subramonian M R (27.85 lakhs shares / 23.37%), Krishnan Mavelikalam Ramakrishnan (26.10 lakhs shares / 21.91%), M.R.Narayanan . (22.28 lakhs shares / 18.70%), Karthik Narayanan . (1.93 lakhs shares / 1.62%) and Radha Narayanan (0.66 lakhs shares / 0.55%).