Wyo. Stat. § 40-26-109: Brokerage services.

A person may not deny an individual access to, or membership or participation in, a multiple-listing service, real estate brokers' organization, or other service, organization or facility relating to the business of selling or renting dwellings, or discriminate against an individual in the terms or conditions of access, membership or participation in the organization, service or facility because of race, color, religion, sex, disability, familial status or national origin.