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RESO Certification Status

With the launch of RESO Analytics in April 2022, there is a new “Passed” layer of certification between being certified and uncertified. This is the state between when an MLS vendor has passed certification for an MLS and when the MLS accepts those results. The certification map reflects this new state as “Passed Current,” because it is actually a step ahead of “Certified Legacy.”

IMPORTANT: The lists below are in the process of being updated to reflect what is on the certification map. As of May 20, 2022, these lists are not current. Please refer to the map. When the lists are current again, a new note will appear here. 

Multiple Listing Services (MLSs)

View MLSs

Technology Companies

View Technology Companies


View Brokerages

Complete List

Download a complete list of organizational certification activity in JSON format

Updated daily.