It is typical enterprise sales. If the prices aren't listed, it usually means you're charged based on what they estimate you can afford for the value-add. It may be $12k/yr for a big company and $1.2k/yr for a small one.
or vice versa - I remember that O'Reilly Safari was almost 10 times cheaper per person when I worked in 100k+ people company, compared to only couple of thousands people...
And that still makes the solution cost prohibitive for the large company because there's likely only 10 people who have access to the software and ever use it out of the 100 000 employees.
A small company buying a software might actually have a bunch of employees using it.
