I don't know... IBM is really really big. Even if 20% of the company is technology-focused, that's still a huge number of people. They supply the finance and defense world with machines, operating systems, and compilers and they also provide support for them. They also have a research division that routinely publishes at all of the top conferences.
There's no question. A company builds some cloudy offerings with a few million and HN calls them a technology company. IBM's internal use alone is almost a billion a year of their technology. Then they sell billions to others. So, yeah, they're a technology company.
And anyone challenging them, their government connections, and patent portfolio better remember that.
