Who Owns IBM Z?

What does IBM own?
IBM's primary brands include IBM (corporate and enterprise technology), Red Hat (enterprise Linux and OpenShift hybrid cloud platform, acquired in 2019 for $34 billion), watsonx (enterprise AI platform launched in 2023), and IBM Z (mainframe computing systems). The company also operates IBM Consulting, IBM Research, and IBM Cloud. IBM spun off Kyndryl (managed infrastructure services) as an independent company in 2021.

Is IBM publicly traded?
Yes. IBM is listed on the New York Stock Exchange (NYSE: IBM) and has been publicly traded since 1915. The company has a standard single-class share structure with one vote per share. Major institutional shareholders include Vanguard Group (approximately 9-10%), BlackRock (approximately 8-9%), and State Street Corporation (approximately 6-7%). No single shareholder holds a controlling stake.

Who founded IBM?
IBM was founded on June 16, 1911, by Charles Ranlett Flint as the Computing-Tabulating-Recording Company (CTR) through the merger of four companies. Thomas J. Watson Sr. joined in 1914 and transformed the company, renaming it International Business Machines Corporation in 1924. Watson established the corporate culture, sales practices, and focus on tabulating machines that defined IBM for decades.

Where is IBM headquartered?
IBM is headquartered in Armonk, New York, USA, in Westchester County approximately 40 miles north of Manhattan. The company's corporate campus has been in Armonk since 1964. IBM operates major offices and research laboratories worldwide, including locations in Austin, Texas; Raleigh, North Carolina (Red Hat headquarters); San Francisco, California; Zurich, Switzerland; and Bangalore, India.

How many brands does IBM own?
IBM owns 4 major brands: IBM (corporate and enterprise technology), Red Hat (enterprise Linux and OpenShift), watsonx (enterprise AI platform), and IBM Z (mainframe computing). The company also operates IBM Consulting, IBM Research, IBM Cloud, and IBM Power Systems as product lines under the IBM brand. Kyndryl, formerly part of IBM, was spun off as an independent company (NYSE: KD) in 2021.

Who owns IBM?
IBM is publicly traded on the NYSE with no controlling shareholder. Major institutional shareholders include Vanguard Group (approximately 9-10% of shares), BlackRock (approximately 8-9%), State Street Corporation (approximately 6-7%), and various other institutional investors. The company has a standard single-class share structure with one vote per share. Arvind Krishna serves as Chairman and CEO.

What is IBM's revenue?
IBM reported FY2025 revenue of $67.5 billion, up 8% year over year. Software revenue was approximately $28.0 billion (up 11%), Consulting revenue approximately $22.0 billion (up 2%), and Infrastructure revenue approximately $17.5 billion (up 12%). The company's generative AI book of business exceeded $12.5 billion. FY2025 free cash flow was $14.7 billion, up 16% year over year. Q4 2025 revenue was $19.7 billion, up 12% year over year.

What is watsonx?
watsonx is IBM's enterprise AI platform, launched in 2023. It includes watsonx.ai (for building and training AI models), watsonx.data (for data preparation and governance), and watsonx.governance (for AI compliance and oversight). watsonx is differentiated from consumer AI platforms by its focus on enterprise requirements including AI governance, data sovereignty, regulatory compliance, and integration with existing enterprise systems. The watsonx brand replaced the earlier Watson brand, which had been associated with mixed commercial results.