Adjumac-Luminaire Ltee
Administration Andre-J. Levesque Inc.
Administration Médicale Infacmed inc.
Administration Micber Inc.
Administration Mirojan Inc.
Administration Roland Francois Gagnon (r.f.g.) Inc.
Administration S.n.p. Ltee
Administrative Sciences Association Of Canada (asac)
Ads Groupe-Conseil Inc.
Ads Informatique Inc.
Ads Participations Inc.
AdVisia
Advitech Inc.
Advitech Solutions Inc.
Aero Quebec Inc.
Aero-Photo 1961 Inc.
Aerobec Ltee.
Aeromerica Inc.
Aéroport de Québec Inc.
Aeterna Zentaris Inc.