H. Heller & Co. Inc.
H.M. Design Inc.
Haake
Hadlock Plastics Corp.
Haemonetics Corp.
Haitek Solutions
Hale Chrome Service
Hallmark Technologies Inc.
Hamelin Entreprises
Hamilton Avtec Inc.
Hampel Corp.
Hancor Inc.
Hanser Gardner Publications Inc.
Hanson Group Ltd.
HanYang-DMP Co. Ltd.
Harbec Plastics Inc.
Harbor City Plastics Inc.
Harborside Research Group
Hardigg Industries Inc.
Harrel Inc.
Hartco Inc.
Hartford Engineering
Harwick Standard Distribution Corp.
Hasco Internorm Corp. West
Haug North America LP
Hauni Richmond Inc.
Haysiter Reinforced Plastics
HC Technologies
Healthcare Compliance Packaging Council
Heartland Plastics Inc.
Heatlock AB
Hece Máquinas e Acessórios Indústria e Comércio Ltda.
Hedwin Corp.
Heise Industries Inc.
Hellyar Plastics
Hematite
Hendee Enterprises Inc.
Herbst LaZar Bell Inc.
Heritage Bag Co.
Hexcel Composite Materials
Hi-Craft Engineering
Hi-Tech Film Inc.
Hi-Tech Mold & Engineering S.E. Inc.
Hi-Tech Mold & Tool Inc.
High Polymer International Co. Ltd.
High Tech Elastomers Inc.
High-Technology Corp.
Highland Search
Hill-Luhring and Associates
Hirschfeld Consulting
HiTech Manufacturing Solutions Inc.
HiTech Polymers Inc.
Hobson Mould Works Inc.
Hoffer Plastics Corp.
Hoist & Crane Systems Inc.
Holland Colours Group NV
Holmquist Design and Mold Sales
Hommer Tool & Mfg. Inc.
Honeywell - Specialty Chemicals
Honeywell Engineered Applications & Solutions
Hop Industries Corp.
Hope Group Air Systems Division
Hoppmann Corp.
Horizon Plastics Co. Ltd.
Horn Plastics Inc.
Hosokawa Polymer Systems Inc.
HP Plastics Corp.
HPM Corp.
HPM Remanufacturing
HPT Plastics Inc.
HR Inc.
Hudnut Industries Inc.
Hudson Extrusions Inc.
Hudson-Sharp Machine Co.
Hughes Processing Inc.
Hunkar Laboratories Inc.
Hunsinger Plastic Extrusions Inc.
Hunt Machine and Manufacturing Co.Inc.
Hunter Associates Laboratory Inc.
Huntsman Corp.
Husky Injection Molding Systems
Hutcheon Machinery Inc.
HyComp Inc.