High School Teen Idol Canada Corporation
High Tech Genesis Inc.
High-Quality Paint Finishing H.q.p.f. Inc.
High-Rise Communications, Inc.
Higher Informatics Inc.
Highland Communication Systems Ltd.
Highland Excellence Inc.
HighRoads Canada, Inc.
Hiiraan Development Agency
Hiiraan Online Inc.
Hilary Arsenault Flooring Inc.
Hildid.ig Communications Inc.
Hill and Knowlton Canada
Hill Record Systems Limited
Hill-Boose Incorporated
Hillel Foundation Of Canada
Hillel Lodge Long-Term Care Foundation (ottawa)
Hills Of Erin Cancer Prevention Foundation
Hilltop Hospitality Consultants Ltd.
Hillwatch Inc.