Pontifical Mission Societies
- Coordinating world missions efforts.
- http://www.worldmissions-catholicchurch.org/

Christian Medical Missions, Inc.
- Nonprofit organization provides medical, dental, and eye care to the needy in Latin America. History, photos, contact information. Seeking sponsors for children's education, and volunteers for short-term mission trips.
- http://www.christianmedical.org/

Catholic Medical Mission Board
- Medical relief agency providing international health care for third world relief. This Catholic charity sends medical donations including emergency medical supplies and pharmaceuticals for emergency aid.
- http://www.cmmb.org

Comboni Lay Missionary Program
- Group which sends Catholic lay men and women to work in mission sites in Africa and Latin America. Includes 5 month mission training, language training, and 3 year commitment.
- http://www.laymission-comboni.org/

SEDOS
- Service of Documentation and Study. An association of Catholic missionary societies (mostly religious orders). Articles on missiology and liberation theology, in English, French, and Spanish.
- http://www.sedos.org/

Holy Spirit Missionary Association
- Evangelization training and outreach. Online materials, seminars. Based in Miami, Florida.
- http://www.hsma.net/

Mission Doctors Association
- Sponsors Catholic physicians and their families in hospitals and mission clinics in Africa.
- http://www.missiondoctors.org/

Catholic Mission
- Official mission aid agency of the Catholic Church in Australia. Umbrella organisation for Society for the Propagation of the Faith, Children's Mission, and Society of St. Peter Apostle.
- http://www.catholicmission.org.au/