S. Green Dispute Resolutions - Services including mediation, arbitration, and group facilitation. Credentials, services, contacts. - http://www.sgreenadr.com/
Heyman Mediation and Facilitation - Mediation and facilitation services to organizations and individuals. Information on services, contacts. - http://www.mediate-facilitate.com/
Center for Dispute Settlement - Offering alternative dispute resolution services including mediation, facilitation, the design of systems for resolving disputes, and training. - http://www.cdsusa.org/