Hydro Cut Corporation
Hydro Extraction Inc.
Hydro Power Engineering (proprietary) Limited
Hydro-Purge Inc.
Hydroacoustics
Hydrofoam Mining Inc.
Hydronautics Incorporated
Hydrosol
Hydrotech-Hughes Inc.
Hydryl Company Lp
Hyland Craig R.
Hyman Michael D.
Hynd Irvin W.
Hynd John G.s.
Hynd Nicholas A.
Hyne James B.
Hytken Kent B.
Hyvonen Pentti