Helicopter Manufacturers (3721-HM) High-Purity Gas Handling & Equipment (2819-HG) Holster Manufacturers (3199-HS) Home Improvement Stores & Products (3088-HI) Hospitals & Medical Care Facilities (8062-HO) Hotel & Motels (7010-HO) Hot Runners (3559-HR) Household Appliance Manufacturer (3639-HA) HPLC - High Performance Liquid Chromotography (3826-HP)