The Society of Physician Assistants in Rheumatology
- Official organization for physician assistants (PAs) practicing in rheumatology.
- http://www.sparheum.org

Arthritis Foundation
- Not-for-profit organization that supports different types of arthritis and related conditions with advocacy, programs, services and research.
- http://www.arthritis.org/default.asp

Malaysian Society of Rheumatology
- Professional organization of rheumatologists who treat disorders of the joints, muscles and bones. Also provide basic online education on rheumatology. This site is an effort to increase the awareness of Malaysians in these disorders.
- http://www.msr.org.my/html/index.htm

EULAR - European League Against Rheumatism
- Aims to promote, stimulate and support the research, prevention, treatment and rehabilitation of rheumatic diseases.
- http://www.eular.org/

British Society of Rheumatology
- Information for clinicians and patients.
- http://www.rheumatology.org.uk/

Society of Irish and American Rheumatologists
- Facilitates coordination and cooperation of Irish and American rheumatologists.
- http://www.siarnet.org/

International Society of Musculoskeletal & Neuronal Interactions
- Non-profit scientific society whose mission is to enhance the knowledge of the interactions between tissues and organs coordinating in the function of the musculoskeletal system.
- http://www.ismni.org

American College of Rheumatology
- Professional organization of rheumatologists and associated health professionals who cure disorders of the joints, muscles and bones.
- http://www.rheumatology.org/

International League of Associations for Rheumatology
- Information about this worldwide organisation and its activities.
- http://www.ilar.org/

New Zealand Rheumatology Association
- Facilitates communication between members of the NZRA, and improve public understanding of arthritis.
- http://www.rheumatology.org.nz/

Australian Rheumatology Association
- A professional organization of consulting physicians specializing in the assessment and management of musculoskeletal and inflammatory disorders.
- http://www.rheumatology.org.au/