The companies are United Diagnostic International, Noel Agritech and Innovative Print Forms.
It was alleged that the firms did not obtain SCORES authentication within the mandated timeframe and also failed to redress investor grievances pending against them.
"Failure to redress investor grievances by a listed company adversely affects the confidence of investors in the securities market," Sebi's whole-time member Rajeev Kumar Agarwal said in three separate orders.
The companies are barred from buying selling or otherwise dealing in the securities market directly or indirectly till they obtain SCORES authentication and resolve all the investor grievances pending against them, the orders said.
It also helps investors view, track and follow up the action taken on their grievances. The online redressal system has significantly helped in reducing the processing time of complaints.