
MLS Industry Directory: Organization
RESO
Open standards for real estate data
About RESO
The Real Estate Standards Organization, known as RESO, is an independent nonprofit standards body that develops and promotes open standards for real estate data.
Its work includes the RESO Data Dictionary, Web API, unique identifiers, certification, analytics, and education. RESO member organizations include MLSs, brokerages, REALTOR associations, and technology partners serving more than one million real estate professionals.
RESO is a co-organizer of the International MLS Forum and is represented in the Istanbul 2026 announced speaker roster by CEO Sam DeBord.



