Are they? I did an interview with one of them a few months ago, passed hiring committee, and have been told everything is frozen. The other one just cancelled my interview.
That is pretty lame unless it is for a very specialized role. But for whatever reason it seems like many companies go through the whole song and dance even if they have no intention of hiring.
It looks good to investors to see a lot of openings, so some companies that are not growing (that is they are in a great market that is small and won't grow) will go through that act of looking for people without hiring anyone. That is they get the job description of existing people, and post ads for that job, collect resumes, (they might do an initial phone screen interview for practice) but never hire anyone.
Careful. Exact same situation, company reached out to me, I went through interviewing and they told me after the third that they have no open spots currently.