Since decades vendors try to sell their IT tool as the sole, unique, complete knowledge system.
And you have a very clear problem statement, resulting in the belief that your problem will be solved by a knowledge system.
But which one?
We define for you the optimal choice for the tool best fit in your organization: based on figures which also include the cost to introduce the tool, and define upfront the best fit change management actions to overcome resistance coupled to the upcoming change.
We ourselves are totally vendor independent. We do not accept 'referral fees'. That makes that sometimes, for certain solutions we come to other tools, best fitting your organization.
We have some nice references on a.o. introducing knowledge environments and content management systems.