• Cardiothoracic Surgery Network
  CTSNet is a collaborative effort of the major cardiothoracic organizations around the world to provide a comprehensive, web-based repository of information for surgeons. More than 40 organizations participate in CTSNet and have formed a unique electronic community of cardiothoracic surgeons. Every day, thousands of surgeons access this information resource from computers in their offices and homes to research cases, communicate with colleagues, explore the field's journals, investigate devices, find out about meetings, engage in lively discussions, and conduct private electronic meetings.
   
• Society of Thoracic Surgeons
  The Society is directly involved in issues of concern to all thoracic surgeons, including Professional Affairs, STS National Database, Nomenclature and Coding, and Standards and Ethics.
   
• American Board of Thoracic Surgery
  This web site is published by the American Board of Thoracic Surgery for prospective candidates for examination, and others who are interested, to outline the rules and regulations established by the Board in conformity with its policies.
   
• Congenital Heart Surgeons' Society Data Center
  The Congenital Heart Surgeons’ Society (CHSS) is a group of 70 pediatric heart surgeons who meet once a year to discuss problems of mutual interest in patient management.
   
• General Thoracic Surgery Club
   
• Society for Heart Valve Disease 
  The objects of the Society are to undertake, promote, support and encourage research, and the education of the public, in the causes of heart valve disease, the prevention of, and the treatment of heart valve disease or any related cardiac disease, illness or condition.
   
• Southern Thoracic Surgical Association
  Disseminate knowledge, encourage research and report at the annual meeting, scientific session and postgraduate course on the advancements within the field of thoracic and cardiovascular surgery.

• Thoracic Surgery Directors Association
  The objectives of the TSDA are to -

1. provide a forum for the interchange of ideas and information relating to the education of thoracic surgery residents;

2. assist in the identification and solution of educational and administrative problems that may arise in the conduct of thoracic surgery residency programs; and,

3. serve as the advocate of resident education in the various professional agencies, boards, councils and committees that influence the specialty of Thoracic Surgery.

4. represent the Directors of residencies in Thoracic Surgery that have been approved by the Accreditation Council on Graduate Medical Education (ACGME). These individuals shall hereinafter be referred to as the Directors.

• Thoracic Surgery Foundation for Research and Education
  Established by the thoracic surgeons of today to enhance the education and capabilities of the thoracic surgeons of tomorrow.
   
• Western Thoracic Surgical Association
  To associate persons residing in the western United States and Canada who desire to advance the quality and practice of thoracic and cardiovascular functions and disorders so as to increase knowledge and improve treatment.

To hold scientific meetings for the presentation and discussion of topics of interest to thoracic and cardiovascular surgeons and to encourage publication of these proceedings.

• American College of Surgeons
  The American College of Surgeons is a scientific and educational association of surgeons that was founded in 1913 to improve the quality of care for the surgical patient by setting high standards for surgical education and practice.
   
• Society of University Surgeons
  The object of the Society shall be the advancement of the art and science of surgery by: (1) the encouragement of its members to pursue original investigations both in the clinic and in the laboratory; (2) the development of methods of graduate teaching of surgery with particular reference to the resident system; (3) free and informal interchange of ideas pertaining to the above subjects.
   
• Association for Academic Surgery
  The Association For Academic Surgery is widely recognized as an inclusive surgical organization. The impetus of the membership remains research-based academic surgery, and to promote the shared vision of research and academic pursuits through the exchange of ideas between senior surgical residents, junior faculty and established academic surgical professors.
   
• American Heart Association
  Our mission is to reduce disability and death from cardiovascular diseases and stroke.
   
• American College of Cardiology
  Committed to provide optimal cardiovascular care.
   
• American College of Chest Physicians
  To promote the prevention and treatment of diseases of the chest through leadership, education, research, and communication.

• European Association for Cardiothoracic Surgery
  The main objects of the Association are to advance education in the field of cardio-thoracic surgery and to promote for the public benefit research in thoracic physiology, pathology and therapy and to correlate and disseminate the useful results thereof. Within the EACTS there are 15 committees working on various issues in order to improve cardio-thoracic surgery.
   
• Canadian Association of Thoracic Surgeons
  The Canadian Association of Thoracic Surgeons represents thoracic surgeons in Canada.
   
• International Society for Minimally Invasive Cardiac Surgery
  The International Society for Minimally Invasive Cardiac Surgery was formed to organize and centralize the various surgical centers concerned with patient outcomes, techniques, and progressive development of less invasive forms of heart surgery.