AT
Corporate Ownership
Who owns Atex?
Based on verified corporate hierarchy telemetry for 2026, Atex operates as a subsidiary of Constellation Software.
Parent Company & Controlling Organization
Corporate entities holding a majority stake, operating ownership, or direct subsidiary control.
CO
Constellation Software
Parent Company
Public acquirer and operator of vertical-market software businesses.
Institutional Investors & Major Shareholders
Significant asset management firms, investment funds, and equity stakeholders tracked via regulatory filings.
CO
Constellation Software
Major Shareholder
Public acquirer and operator of vertical-market software businesses.
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Atex
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