| Institute or Society (Pontifical Right) | Members | Priests |  |
| 1 | S.J. | Society of Jesus (Jesuits) | 13,995 | 10,159 | 9+58 |
| 2 | S.D.B. | Salesians of Saint John Bosco (Salesians) | 13,605 | 9,244 | 10+102 |
| 3 | O.F.M. | Order of Friars Minor (Franciscans) | 11,984 | 8,093 | 5+105 |
| 4 | O.F.M. Cap. | Order of Friars Minor Capuchin (Capuchin Franciscans) | 9,794 | 6,647 | 4+69 |
| 5 | O.S.B. | Benedictine Confederation of the Order of Saint Benedict (Benedictines) | 6,382 | 3,176 | 20 |
| 6 | S.V.D. | Society of the Divine Word (Verbites) | 5,754 | 4,045 | 2+43 |
| 7 | O.P. | Order of Preachers (Dominicans) | 5,369 | 4,073 | 3+37 |
| 8 | C.SS.R. | Congregation of the Most Holy Redeemer (Redemptorists) | 4,568 | 3,523 | 2+57 |
| 9 | O.C.D. | Order of Discalced Carmelites (Teresian Carmelites) | 3,887 | 2,875 | 1+20 |
| 10 | O.F.M. Conv. | Order of Friars Minor Conventual (Conventual Franciscans) | 3,879 | 2,727 | 3+22 |
| 11 | O.M.I. | Missionary Oblates of Mary Immaculate (Oblates) | 3,478 | 2,601 | 1+46 |
| 12 | C.M. | Congregation of the Mission (Vincentians, Lazarists) | 3,033 | 2,737 | 3+28 |
| 13 | C.M.F. | Missionary Sons of the Immaculate Heart of Mary (Claretians) | 2,966 | 2,280 | 2+25 |
| 14 | F.S.C. | Brothers of the Christian Schools (Lasalians, De La Salle Brothers) | 2,930 | | |
| 15 | C.S.Sp. | Congregation of the Holy Spirit (Spiritans, Holy Ghost Fathers) | 2,792 | 2,083 | 2+28 |
| 16 | C.M.I. | Carmelites of Mary Immaculate | 2,625 | 2,052 | 10 |
| 17 | F.M.S. | Marist Brothers | 2,496 | | |
| 18 | O.S.A. | Order of Saint Augustine (Augustinians) | 2,340 | 1,805 | 21 |
| 19 | S.A.C. | Society of the Catholic Apostolate (Pallottines) | 2,289 | 1,728 | 11 |
| 20 | S.C.I. | Congregation of the Priests of the Sacred Heart (Dehonians) | 2,182 | 1,559 | 25 |
| 21 | O. Carm. | Order of the Brothers of Our Lady of Mount Carmel (Carmelites) | 1,984 | 1,318 | 13 |
| 22 | C.P. | Congregation of the Passion (Passionists) | 1,795 | 1,368 | 12 |
| 23 | M.S.F.S. | Missionaries of Saint Francis de Sales (Fransalians) | 1,683 | 1,233 | 1 |
| 24 | M.S.C. | Missionaries of the Sacred Heart of Jesus (Sacred Heart Missionaries) | 1,623 | 1,185 | 1+20 |
| 25 | M.C.C.J. | Comboni Missionaries of the Heart of Jesus (Comboni Missionaries) | 1,569 | 1,074 | 23 |
| 26 | O. Cist. | Order of Cistercians (Cistercians) | 1,559 | 639 | 1+3 |
| 27 | O.C.S.O. | Order of Cistercians of the Strict Observance (Trappists) | 1,441 | 522 | 5 |
| 28 | M. Afr. | Missionaries of Africa (White Fathers) | 1,343 | 1,004 | 1+12 |
| 29 | C.S.C. | Congregation of Holy Cross (Holy Cross Fathers) | 1,338 | 725 | 1+12 |
| 30 | Sch. P. | Order of Poor Clerics Regular of the Mother of God of the Pious Schools (Piarists) | 1,331 | 926 | 3 |
| 31 | L.C. | Congregation of the Legionaries of Christ | 1,316 | 1,020 | 1+1 |
| 32 | S.G. | Brothers of Christian Instruction of Saint Gabriel (Gabrielite Brothers) | 1,169 | 17 | |
| 33 | M.I. | Clerics Regular of the Ministers of the Sick (Camillians) | 1,128 | 808 | 1 |
| 34 | S.D.S. | Society of the Divine Saviour (Salvatorians) | 1,108 | 800 | 7 |
| 35 | O. Praem. | Order of the Canons Regular of Prémontré (Norbertines, Premonstratensians) | 1,071 | 807 | 2 |
