National Institute for Advanced Conflict Resolution
- Mediator training and certification programs, with articles and resources.
- http://www.niacr.org/

The Association for Conflict Resolution
- U.S. membership organization for professional and volunteer neutrals, providing training through annual conferences, section meetings and tapes (formerly AFM, CRENet and SPIDR).
- http://www.acrnet.org/

CMA (Conflict Management Australasia)
- Melbourne-based firm providing training in negotiation, mediation and conflict management. Also offers mediation and consulting services, and conference rooms suitable for ADR, training and general purposes.
- http://www.cmaservices.com.au

Mediation Inc
- A North Carolina firm of certified mediators that conducts training courses in mediation and negotiation skills.
- http://www.mediationincnc.com/

Partners for Democratic Change
- Partners works in several countries to strengthen communities' ability to manage change, maximize the benefits of diversity, and prevent and resolve conflicts.
- http://www.partnersglobal.org

Heyman Mediation and Facilitation
- Offers training and consulting services in mediation, facilitation, conflict resolution and change management in the Washington, DC area.
- http://www.mediate-facilitate.com

North American Institute for Conflict Resolution
- Edmonton, Alberta based organisation that provides advanced training in conflict management, focused on building the inner resources of neutrals and participants in conflict situations.
- http://www.crtraining.org

Austin Dispute Resolution Center
- An independent, nonprofit organization that provides and promotes mediation training and dispute resolution services in Travis County, Texas and surrounding areas.
- http://www.austindrc.org

Mediation Training Group Inc
- Florida-based mediation and conflict resolution training programs, including three day certification programs and on-site organisational training.
- http://www.mediationtraininggroup.com/

CDR Associates
- Offers a wide variety of training in conflict resolution skills, from basic to advanced and targeted to specific types of dispute scenarios. Based in Boulder, Colorado.
- http://www.mediate.org/

Vantage Partners
- Boston-based firm providing negotiation training and other related consulting services.
- http://vantagepartners.com

LEADR (Lawyers Engaged in ADR)
- Australian organisation providing introductory and advanced mediation training, and mediation services.
- http://www.leadr.com.au

Mediation in Law
- The Center for Mediation provides training in mediation and mediative approaches to the practice of law in the United States and Europe.
- http://www.mediationinlaw.org/