The following is a partial list of IBM precursors, acquisitions and spinoffs. IBM has undergone a large number of mergers and acquisitions during a corporate history lasting over a century; the company has also produced a number of spinoffs during that time.
The acquisition date listed is the date of the agreement between IBM and the subject of the acquisition. The value of each acquisition is listed in US$ because IBM is based in the United States. If the value of an acquisition is not listed, then it is undisclosed.
This is all I've known. a way to be
True to all, all that inspires
A torch in a black sea, our stones still stand
To remind us of loss, a loss mirrored on our souls
A watchfire brings strength, breathe in the heat