Ontario Secondary School Teachers' Federation
The Ontario Secondary School Teachers’ Federation (OSSTF/FEESO) is a trade union representing almost 60,000 members.
The union works to protect its diverse membership which is represented in 140 bargaining units across the province.
OSSTF/FEESO bargaining units represent both English and French members in elementary and secondary school workplaces, private schools, consortia offering support services to school boards and universities.
