In its day OMC made Johnson, Evinrude, Gale, Buccaneer and some OMC branded outboards. They also made a lot of store brand (Sea King, Wizard, etc.) outboards in the Gale division.
When OMC went under Bombardier bought only the assets associated with the outboard brands Johnson and Evinrude. All other OMC products either went out of existence or were bought up by other companies.
BRP (Bombardier Recreational Products) was spun off of the rest of the Bombardier line for financial reasons.
At least that is the way I understand it.