In North America, the better-known ones were I. P. Sharp Associates, Scientific Time Sharing Corporation (STSC), Time Sharing Resources (TSR), and The Computer Company (TCC).
באמריקה הצפונית, הספקיות הידועות היו I. P. Sharp Associates (IPSA), Scientific Time Sharing Corporation (STSC), Time Sharing Resources (TSR), ו־ The Computer Company (TCC).