Multiple press reports have estimated that 75 workers, about 70% of the staff, have exited.
One in Toronto that is operated by different organizers is expected to proceed as scheduled in September.
Shifts in the media business also played a part in the bankruptcy filing.
The media industry landscape has radically changed over the past few years, the JPR statement noted.
Consolidation and reduced budgets at the networks and streaming platforms have made television production more challenging.
