In episode 261 of Semantic Mastery's weekly Hump Day Hangouts, one participant asked about tips on how to push Glassdoor pages down on SERPs.
The exact question was:
When searching for my client's brand name two SERP positions are taken by Glassdoor which review what it's like to work there. Unfortunately, there are a bunch of bad reviews of what it's like to work there from a few bad employees. Any tips on pushing those Glassdoor pages down?