• Armenian Catholic Clergy Institute
  Bzommar, Lebanon
• Bibliothèque Orientale at the Université Saint-Joseph
  Beirut, Lebanon
• Our Lady of Balamand Monastery and University
  Tripoli, Lebanon
• Armenian Apostolic Catholicosate of the Great House of Cilicia
  Antelias, Lebanon
• Deir Mar Yuhanna al-Shuwayr (“Monastery of Saint John the Baptist at Shweir”)
  Khonchara, Lebanon
• Monastery of Saint George at Deir-esh-Shir
  Jounieh, Lebanon
• Université du Saint-Esprit
  Kaslik, Lebanon
• Deir el-Kreim, Lebanese Maronite Missionary Order
  Jounieh, Lebanon

• Priory of Rome
• National Archives of Malta

• Melkite Greek-Catholic Archdiocese of Aleppo
  Aleppo, Syria
• Syriac Orthodox Archdiocese of Aleppo
  Aleppo, Syria
• Syriac Catholic Archdiocese of Aleppo
  Aleppo, Syria
• Syriac Orthodox Archdiocese of Homs
  Homs, Syria

• The Stefanyk Library of the National Academy of Sciences of Ukraine
  L’viv, Ukraine
• L’viv Historical Museum
  L’viv, Ukraine

• Saint Thomas Christian Manuscript Collections
  Kerala, India

• Austria/Germany/Switzerland
• British Isles
• Iberia
• Italy
• Malta
• South Africa
• Sweden
• Ethiopia

The Malta Study Center of the HMML began microfilming private and ecclesiastical archival collections on the island of Malta in 1974. The Center currently maintains a microfilm collection of more than 16,000 documents covering the history of Malta and the Knights (today known as the Sovereign Military Order of St. John of Jerusalem, Rhodes, and Malta) dating between the twelfth and the 20th centuries. Today, this collection represents the largest accumulation of Maltese and Sovereign Military Order of Malta archival materials under one roof.

Sovereign Military Order of Malta
Priory of Rome, Italy
The Knights have had a priory in Rome since 1214. The Priory of Rome has housed the headquarters of the Order since their departure from Malta in 1789. In 2005, HMML formed a partnership with the Grand Magistry of the Order to digitize all materials in the Priory archives that pre-date 1904. These include materials that shed light on the activities of the Priory itself and on the Order as a whole since its relocation.

National Archives of Malta, Banca Giuratale
Mdina, Malta
After successful completion of a National Endowment for the Humanities (NEH) challenge grant endowing the Center and its work, the Center signed an agreement with the National Archives of Malta to digitize the Acta of Magna Curia Castellanae (MCC) in 2007. The MCC was the law court of the Knights in Malta, which heard civil and criminal cases. These court records, which date between 1545 and 1899 AD, are housed at the Banca Giuratale in Mdina on the island of Malta.

SMOM Cabreo 36, Cabreo della venerabile commenda di Ponte Corvo, Fondi e Gaudea fatto rinovare dall’illustrissimo Signore Commandatore F. D. Franconi Patrizio Napolitano. 18Th-century illustrated land survey of the Commendary of San Giovanni a Gaudo di Ponte Corvo, Fondi e Gaeta. Sovereign Military Order of Malta, Rome.