Hudon Paul
Huetter John J. Jr.
Hultgren Kent Goran
Hutarew Georg
Hutchinson Ely C.
Huxley-Reynard Christopher
Huxley-Reynard Christopher Shane
Hydam Technology Limited
Hydra Tidal Energy Technology As
Hydra-Power Systems Inc.
Hydro Green Energy Llc
Hydro West Group Inc.
Hydrocoil Power Inc.
Hydrodynamic Energy Systems Corporation
Hydroring B.v.
Hydroventuri Limited
Hydrovolts Inc.