This is the 10308th most frequent Russian word.
брокерских
The Russian word "брокерских" means "brokerage" or "broker's" (adjective form).
The word 'брокерских' is an adjective describing 'услугах', indicating services related to brokers.
У меня есть вопрос о брокерских услугах.
I have a question about brokerage services.
Here, 'брокерских' is used as an adjective to describe 'компаний', referring to companies associated with brokerage activities.
Клиент изучил список брокерских компаний.
The client studied the list of brokerage companies.
'Брокерских' qualifies 'делах', and the phrase indicates topics or matters related to brokerage.