1. Focolare Movement 3-3 Junction, Onitsha {Women}
  2. Miles Jesu Nimo{Women}
  3. St. Scholastica Benedictine Abbey. PO Box 301, Umuoji, Anambra State, Nigeria
  4. Holy Family Sisters of the Needy Congregation. HFSN Convent, SS John & Paul’s Parish, Awada
  5. Daughters of St. Joseph Congregation. DSJ Convent, SS John & Paul’s Parish, Awada.Phone: 046-214087 Fax: 090-501199
  6. Missionaries of Charity {Mother Teresa Sisters}. MC   Convent, Immaculate Heart Parish, Onitsha
  7. Little Sisters of Jesus Congregation. LSJ Convent, St. Charles Lwanga’s Parish, New Haven
  8. Dominican Sisters of St. Catherine of Siena .Dominican Sisters’ Convent, Most Holy Name of Mary’s, Abatete
  9. Holy Rosary Sisters, Basilica of the Most Holy Trinity, Onitsha. Community at No. 9, Magazine Avenue, GRA Onitsha
  10. Missionary Sisters of Divine Mercy
    • Community at No. 6 Park Road, G.R.A.,Onitsha
    • Actus Dei International School, Akpaka G.R.A, Phase II, Onitsha
    • St. Gabriel’s Parish, Umunnachi
    • St. Patrick’s Catholic Parish, Odekpe, Ogbaru L.G.A
    • St. Edward’s Parish, Eziowelle
  11. Daughters of Mary Mother of Mercy Congregation
    • DMMM, St. Jude’s Fegge Onitsha
    • DMMM Convent Umuoji
    • DMMM Community, Nsugbe
  12. Secular Institute of St. Raphael the Archangel. {Daughters of God}
    • Headquarters, Most Holy Name of Mary’s, Abatete
    • Community at No. 6, New Nkisi Road , GRA, Onitsha
    • Community at No. 3, Ekwulobia Street , Onitsha
  13. Clarissan Missionary Sisters Congregation
    • Clarissan Missionary Sisters Regional House, Obosi. Phone: 046-485885, 08033366997
    • Clarissan Missionary Sisters, Holy Trinity Cathedral, Onitsha . Phone: 046-485241
    • Clarissan Missionary Sisters Convent, St. Peter the Apostle’s Parish, Ugwuagba-Obosi. Phone: 046-489655
    • Clarissan Missionary Sisters, SS John & Paul’s Parish, Awada. Phone: 046-488709
    • Clarissan Missionary Sisters Novitiate House, Obosi
    • Clarissan Missionary Sisters, Umuota Obosi
  14. Daughters of Divine Love Congregation
    • DDL Convent, St. Michael’s Parish, Onitsha
    • DDL Convent, St. Joseph’s Parish, Oraukwu
    • DDL Convent, BORACC, Nkpor
    • DDL Convent, Awkuzu
    • DDL Convent, St. Anthony’s Parish, Nkpor. Phone: 046-253300
    • DDL Convent, Oba
    • DDL Regional House, Inland Town, Onitsha
    • DDL Good Shepherd Community, Onitsha
  15. Handmaids of the Holy Child Jesus Congregation
    • HHCJ Central Eastern Provincialate, Immaculate Heart Parish. PO Box 2687, Onitsha. Phone: 046-413121
    • HHCJ Convent, Omagba-Onitsha
    • HHCJ Convent, Alor
    • HHCJ Convent, Iyiowa-Odekpe
  16. Sisters of Immaculate Heart of Mary Congregation. a). IHM Generalate, Onitsha . PO Box 1551 , Onitsha , Nigeria .Phone: 046-463727, 410765
    • IHM Convent, Waterside, Onitsha . Phone: 046-411092
    • IHM Residence, QRC, Onitsha
    • IHM Convent, Inland Town , Onitsha
    • IHM Convent, Ogboli Community, Inland Town, Onitsha
    • IHM Convent, Oguta Road , Onitsha
    • IHM Postulate, Oguta Road , Onitsha
    • IHM Convent, Nkpor
    • IHM Novitiate, Nkpor
    • IHM Convent, Madonna Renewal Centre, Nkpor
    • IHM Convent, Awka Etiti
    • IHM Convent, Aguleri
    • IHM Convent, Umudioka-Dunukofia
    • IHM Convent, Mmiata-Anam
    • IHM Convent, Nnokwa
    • IHM Convent, Iyiowa-Odekpe
    • IHM Convent, Ideani

Masses @ The Basilica of Most Holy Trinity

Sunday Masses (Main Church): 5:15am, 7:00am, 8:30am, 10:30am & 6:15pm. Other Masses outside the Basilica Church (Old Church Bulding): 5:30am, 6:00am, 7:15am & 8:45am (Children). Basilica Square: 7:00am. Stella Maris GRA Outstation: 6.00am, 9.00am & 9:00am (Children). Saturday Evening: 5:30pm (Mass with Vespers 1 of Sunday) Weekday Masses (Main Church): 5:15am, 6:00am & 6:15pm. Stella Maris GRA Outstation (Monday-Saturday): 6:00am. Thursday: Adoration of the Blessed Sacrament, 6:00pm.