The thirty-nine statues in the niches of the nave, transepts and tribune, depict saints who founded religious orders or institutes. The first statue was added in 1706, the last in 1954.
Moving anti-clockwise around the basilica:
(Right side of nave, lower then upper) St Teresa of Avila, Discalced Carmelites (Statue by Filippo Della Valle, 1754). St Madeleine Sophie Barat, Society of the Sacred Heart (Enrico Quattrini, 1934).
St Vincent de Paul, Lazarists (Pietro Bracci, 1754). St John Eudes, Congregation of Jesus and Mary (Silvio Silva, 1932).
St Philip Neri, Oratorians (Giovanni Battista Maini, 1734). St John Baptist de la Salle, Brothers of the Christian Schools (Cesare Aureli, 1904).
St John Bosco, Salesians (Pietro Canonica, 1936).
(Right transept) St Cajetan, Theatines (Carlo Monaldi, 1738). St Francesca Xavier Cabrini, Missionary Sisters of the Sacred Heart (Enrico Tadolini, 1947).
St Jerome Emiliani, Clerks Regular of Somascha (Pietro Bracci, 1756). St Joan Thouret, Sisters of Charity (Enrico & Carlo Quattrini, 1949).
St Joseph Calasanz, Piarists (Innocenzo Spinazzi, 1755). St Bonfilius Monaldi, Servites (Cesare Aureli, 1906).
St Bruno, Carthusians ( Michelangelo Slodtz, 1744). St Paul of the Cross, Passionists (Ignazio Jacometti, 1876).
(Right side ofTribune) Prophet Elijah, Carmelites (Agostino Cornacchini, 1727). St Francis de Sales, Visitationists (Adamo Tadolini, 1845).
St Dominic, Dominicans (Pierre Le Gros the Younger, 1706). St Francis Caracciolo, Minor Clerks Regular (Alessandro Massimiliano Labourer, 1834).
(Left side of Tribune) St Francis of Assisi, Franciscans (Carlo Monaldi, 1727). St Alphonsus de Liguori, Redemptorists (Pietro Tenerani, 1839).
St Benedict, Benedictines (Antonio Montauti, 1735). St Frances of Rome (Pietro Galli, 1850). [St Frances was not actually the founder of an order, but only of a Roman nunnery of Benedictine oblates.]
(Left Transept) St Juliana Falconieri, Servite nuns (Paolo Campi, 1740). St Angela Merici, Ursulines (Pietro Galli, 1866).
St Norbert, Norbertines (Pietro Bracci, 1767). St William of Vercelli, Williamites (Giuseppe Prinzi, 1878) St Peter Nolasco, Mercedarians (Paolo Campi, 1742). St Louise de Marillac, Daughters of Charity (Antonio Berti, 1954).
St John of God, Brothers Hospitallers (Filippo Della Valle, 1745). St Euphrasia Pelletier, Sisters of the Good Shepherd (Giovanni Niccolini, 1940).
(Left side of Nave) St Francis of Paola, Minim friars (Giovanni Battista Maini, 1732). St Peter Fourier, Congregation of Notre Dame (Louis Noel Nicoli, 1899).
St Ignatius of Loyola, Jesuits (Camillo Rusconi, 1733). St Anthony Zaccaria, Barnabites (Cesare Aureli, 1909).
St Camillus de Lellis, Camillians (Pietro Pacilli, 1753). St Louis de Montfort, Company of Mary (Giacomo Parisini, 1948).
St Peter of Alcántara, Alacantarini (Francesco Vergara y Bartual, 1713). St Lucy Filippini, Maestre Pie Filippini (Silvio Silva, 1949).
St Peter of Alcantara by Francesco Vergara y Bartual