Answer: gatekeepers
Explanation: Gatekeeper refers to a member of a judgment-making system or social circle acting to suppress or deter purchasing by restricting the flow of details and information exposure to the purchasing center's members.
A parent who does not permit her children in the store to choose from a sweetened cereal serves as just a gatekeeper. In a company, the gatekeeper is almost the same as the picture that the term brought to mind — anyone sitting right at an access point to avoid undesired traffic.
This is the individual tasked with keeping a judgment-maker from being distracted by what they or he find insignificant and distracting guests and interviewees to be.