Where to apply for an airport transit visa?

My place of residence My visa application should be submitted to
provinces of Quebec,
Prince Edward Island,
Manitoba, New Brunswick
Nova Scotia, Ontario,
Newfoundland and Labrador
Nunavut territory as well as
the Bahamas
Consulate General of Switzerland in Montreal                    
provinces of British-Columbia,
Alberta, Saskatchewan as well as the Northwest and the
Yukon territories

Consulate General of Switzerland in Vancouver


 for diplomatic visas only Embassy of Switzerland in Ottawa 

Representation agreement

If a State does not have its proper visa section in a country or region, the delivery of a Schengen visa can be delegated to another Schengen State member with an agreement between both countries concerned.

The agreement allows the appointed representation to represent and handle Schengen visa applications within its own competence without consulting the other represented State.

Country / Region Schengen State represented by Switzerland
Vancouver  Austria, Finland, Germany, Hungary, Slovenia and Spain
Montreal Finland