Realtor associations and MLSs are collectively referred to as organized real estate. The three serve as the infrastructure for the residential real estate brokerage industry. Associations, which exist at the national, state and local level set industry professionalism, advocate for policies that support their members’ business and often run MLSs, which enable collaboration among competing brokers and agents to facilitate fast transactions.
The ORE 200 ranks all of the nation’s state Realtor associations, local Realtor associations and MLSs by their membership counts in three separate rankings.