Which companies are competitors of IBM?

First, we must point out that IBM has been there for almost a century. Thus the list might become rather lengthy. However, IBM stands out because of its B2B-focused business model.

This approach distinguishes IBM because there is always an alternative for any big businesses’ products; for example, if Android were to be discontinued, there would be iOS, Windows Phone OS, BlackBerry OS, Ubuntu Mobile, and so on.
The same is correct for search engines: if Bing is unavailable, you can use Google or DuckDuckGo instead. However, I do not see a viable alternative if IBM goes down.

IBM’s present concentration, on the other hand, is on the cloud.
As a result, IBM competes with a variety of cloud services, including Amazon Web Services (AWS), Google Cloud Platform, and Microsoft Azure, to name a few.

When it comes to search engines, the same is true: if Bing is unavailable, you can use Google or DuckDuckGo instead. However, if IBM fails, I do not see a viable option. On the other hand, IBM’s current focus is on the cloud.