Statistics Canada
portal for statistics on Indigenous Peoples:
https://www.statcan.gc.ca/en/subjects-start/indigenous_peoples

 recent reports:
Identifying Indigenous Business Owners and Indigenous-Owned Businesses
Characteristics of Indigenous-owned businesses

Conference Board of Canada 
Indigenous & Northern Communities
reports and data on Indigenous business issues and developments

First Nations Major Projects Coalition (resources)

NACCA  National Aboriginal Capital Corporations Association
a network of over 50 Aboriginal Financial Institutions (AFIs) dedicated to stimulating economic growth for all Indigenous people in Canada