Business Unit

A division, sometimes called a business sector or business unit (segment), is one of the parts into which a business, organization or company is divided. https://en.wikipedia.org/wiki/Division_(business)

A strategic business unit (SBU) in business strategic management, is a profit center which focuses on product offering and market segment. SBUs typically have a discrete marketing plan, analysis of competition, and marketing campaign, even though they may be part of a larger business entity. An SBU may be a business unit within a larger corporation, or it may be a business into itself or a branch. Corporations may be composed of multiple SBUs, each of which is responsible for its own profitability. Companies today often use the word segmentation or division when referring to SBUs or an aggregation of SBUs that share such commonalities. https://en.wikipedia.org/wiki/Strategic_business_unit