A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z

• H&A Seeds - Azizian, Haik

Australia

• Henderson Seed Group - Doublier, Jack
• Henderson Seed Group - Smith, Gary
• Heritage Seeds Pty. Ltd. - Coad, Joe
• Heritage Seeds Pty. Ltd. - Greenway, Grant
• Heritage Seeds Pty. Ltd. - Hay, John
• Heritage Seeds Pty. Ltd. - Poulton, Phil
• Hylan Seed Company - Coe, Rodney

Belgium

• HybriTech Europe / Monsanto Europe S.A. - Boin, Pierre-Francois

China

• Hubei Provincial Seed Group Company - Yuan, Guobao

Germany

• Hybro Saatzucht GmbH & Co. KG - Iken, Marcus

Israel

• Hazera Genetics Ltd. - Amit, Zvi

New Zealand

• Hybrid Seed Company NZ Ltd. - Johnson, Mark

Peru

• Hortach Seeds - Chavez Wendorff, Raul

Poland

• Hortnas Sp. z.o.o. - Rutkowski, Zbigniew

Slovakia

• Hordeum s.r.o. - Sleziak, Ludovit

South Africa

• Hygrotech Seed - Roode, Habe

Switzerland

• Otto Hauenstein Seeds - Müller, Meinrad
• Otto Hauenstein Seeds - Schmid, Tobias

Thailand

• Hortigenetics Research (S.E. Asia) Ltd. - Burns, Thomas

Uganda

• Harvest Farm Seeds Ltd. - Okot, Josephine

United Arab Emirates

• Hadi Hamad Trading Est. - Hamad, Hadi

United Kingdom

• Horticulture Research International - Roberts, Steven

USA

• H.W. Martin & Son Co. - Martin, Jeff
• HeinzSeed - Groenewegen, Kees
• Hollar Seeds - Hollar, Andy
• Hollar Seeds - Hollar, Larry

Zimbabwe

• Hivu Nursery - Ellert, Anthon