Manufacturers (H-I)
- H B IVES
- H K PORTER
- HAGER
- HAMILTON
- HAMMERMILL
- HAMMOND
- HANNAY
- HANOVER WIRE
- HANSON
- HANSON WHITNEY
- HARBOOK CREATIONS
- HARDWARE EXPRESS
- HARLEY DAVIDSON
- HARPER
- HARPER BRUSH
- HARRINGTON
- HARRIS CALORIFIC
- HARRIS WELCO
- HARTLINE
- HASKEL
- HAWKEYE
- HAYWARD GORDON
- HAZ STORE
- HAZ/MAT DQE
- HAZEL
- HBD INDUSTRIES
- HELICOIL
- HENKEL
- HENRY
- HERITAGE CUTLERY
- HERMES
- HERNON MFG
- HERO INDUSTRIES
- HEWLETT-PACKARD
- HILLMAN FASTENER
- HIPWELL
- HIT TOOLS
- HITACHI
- HI-TECH HOSE
- HOBART
- HODELL-NATCO
- HOFFMAN
- HOLLAENDAR
- HOLMES
- HOLOKROME
- HOMAX
- HOME CARE INDUSTRIES
- HOMELITE
- HON
- HONDA
- HONEYWELL
- HOOVER
- HORMEL
- HOSE SOURCE
- HOSPITAL SPECIALTY
- HOT TRAX
- HOUSTON CUTTING TOOL
- HOUT
- HOVAC
- HOWARD LEIGHT
- HUBBELL
- HUISH
- HUNT
- HUSQVARNA
- HYDE
- HYDRO
- HY-KO
- IBM
- ICA ACRYLICS
- ICC INDUSTRIES
- IDEAL INDUSTRIES
- IGLOO
- ILCO
- ILLINOIS GLOVE
- ILSCO
- IMAGE EXCELLENCE
- IMATION
- IMPACT PRODUCTS
- IMPACTO PRODUCTS
- IMPERIAL SCHRADE
- INDUSCO
- INDUSTRIAL SPECIALTIES
- INGERSOLL-RAND
- INLAND
- INNOVEYOR
- INSL-X PRODUCTS
- INTERAPID
- INTERMATIC
- INTERNATIONAL
- INTERTAPE POLYMER
- IOMEGA
- IRWIN INDUSTRIAL
- ISCAR
- ITT FLYGT
- ITT HOFFMAN
- ITT MARLOW
- ITW
- ITW DEVCON
- ITW DYMAN
- ITW RAMSET
- ITW VORTEC
- IVY CLASSIC INDUSTRIES
- IZAR