- ACCP Antithrombotic Guidelines
- American College of Chest Physicians (ACCP)
- American Society of Hematology (ASH)
- American Venous Forum
- AntiCoagulation Europe
- Anticoagulation Forum
- ClotCare Online Resource
- National Alliance for Thrombosis and Thrombophilia (NATT)
- National Certification Board for Anticoagulation Providers
- North American Thrombosis Forum
- Society for Vascular Surgery
- The Thrombosis Interest Group of Canada

