The phrase "important intermediaries" is correct and usable in written English.
You can use it when you want to talk about people or organizations who have a role in facilitating communication or transactions between two other parties. For example, "Third-party intermediaries, such as banks and brokers, are important intermediaries in financial transactions."
I argue that these communal elites are important intermediaries that help China's authoritarian state control and extract from their groups.
"The housing counselors are important intermediaries," said Ira Rheingold, the executive director of the Boston-based National Association of Consumer Advocates.
The zamindar, as one of the most important intermediaries, collected the revenue from the peasants and paid it to the treasury, keeping a portion to himself against his services and zamindari claim over the land.
As secondary consumers, amphibians are often important intermediaries in higher order food chain interactions as they convert the prey biomass of small arthropods into a form available for larger predators.
C.E). has long been recognized as one of the most important intermediaries between ancient philosophy and the Latin Middle Ages and, through his Consolation of Philosophy, as a talented literary writer, with a gift for making philosophical ideas dramatic and accessible to a wider public.
Ethylene, most often derived from oil or natural gas, is one of the most important intermediaries in numerous chemical derivatives and plastics and is used to make everything from detergent bottles and grocery bags to sewer pipes and sundry other products.
Therefore, it appears that the LP is an important intermediary relay in the ILSCm LA circuit.
Obama Administration officials regard him as a potentially important intermediary with the Taliban, although his credibility with them is unclear.
Fracking could be an important intermediary measure as the energy mix moves to become cleaner, but only if coal is abandoned.
The Foreign Office sees Turkey as the most important intermediary in contacts with Damascus, a role that Ankara has sought to cultivate over recent years.
He became an important intermediary between Mr. Rabin and the Palestinian leader, Yasir Arafat, and was an Israeli negotiator at the Camp David summit meeting with the Palestinians in 2000.
