From Longman Business Dictionary
structurestruc·ture /ˈstrʌktʃə-ər/ noun [countableC, uncountableU] the way an organization, system, market etc is organized or put togetherMr. Reed has set a course that ultimately will dismantle much of the bank’s huge bureaucratic structure.
a complex structure of affiliated companies
→ capital structure → corporate structure → cost structure → highly leveraged capital structure → matrix structure