Glassdoor was valued at ~7X revenue [1], and was growing ~30% YoY [2].
This means they were doing ~$170M top-line, up from $130M in the year prior.
[1] https://www.bloomberg.com/news/articles/2018-05-09/japan-s-r...
[2] https://www.bloomberg.com/news/articles/2018-02-26/jobs-webs...