• Ishikawajima-Harima Heavy Industries, a Japanese company which produces ships, aero-engines, and other transport-related machinery
• Information Holdings Inc.
  Information Holdings Inc.
  Information Holdings Inc. was a company listed on the NYSE until its merger with The Thomson Corporation in November 2004. Its 2003 revenues were approximately $81 million....
  
  , part of The Thomson Corporation since 2004
• Institute for Healthcare Improvement

See also

• Ihi
  Ihi
  Ihi, Ehee or Bel Marriage is a ceremony in the Newar community in Nepal in which pre-adolescent girls are 'married' to the bel fruit , which is a symbol of the god Vishnu, ensuring that the girl becomes and remains fertile...
  
  (Bel marriage), Newar girls' mock-marriage to the bel fruit in Nepal