Society of apostolic life in the context of "Society of St. Joseph of the Sacred Heart (Josephites)"

Consecrated life (also known as religious life) is a state of life in liturgical branches of Christianity (particularly Catholicism, Evangelical Lutheranism, and Anglicanism) lived by those faithful who are called to follow Jesus Christ in a more exacting way. Consecrated life includes those in religious orders, those residing in monasteries or convents, as well as those living as hermits or consecrated virgins; in the Catholic Church, consecrated life may include those in institutes of consecrated life (religious and secular), societies of apostolic life.

The Priestly Fraternity of Saint Peter (Latin: Fraternitas Sacerdotalis Sancti Petri; FSSP) is a traditionalist Catholic society of apostolic life for priests and seminarians. It is in communion with the Holy See. It was founded in 1988 by 12 former members of the Society of Saint Pius X (SSPX) who left following the Écône consecrations, which resulted in the SSPX bishops being excommunicated by the Holy See.

Headquartered in Switzerland, the society maintains two international seminaries: the International Seminary of St. Peter in Wigratzbad-Opfenbach, Bavaria, Germany, and Our Lady of Guadalupe Seminary in Denton, Nebraska, United States. The society is officially recognized by the Holy See and has 368 priests who celebrate the Tridentine Mass in locations in 147 worldwide dioceses.

The Society of Priests of Saint-Sulpice (French: Compagnie des Prêtres de Saint-Sulpice; PSS), also known as the Sulpicians, is a society of apostolic life of Pontifical Right for men, named after the Church of Saint-Sulpice, Paris, where it was founded. The members of the Society add the nominal letters PSS after their names to indicate membership in the Congregation. Typically, priests become members of the Society of the Priests of St. Sulpice only after ordination and some years of pastoral work. The purpose of the society is mainly the education of priests and to some extent parish work. As their main role is the education of those preparing to become priests, Sulpicians place great emphasis on the academic and spiritual formation of their own members, who commit themselves to undergoing lifelong development in these areas. The Society is divided into three provinces, operating in various countries: the Province of France, Canada, and the United States.

The Company of the Daughters of Charity of Saint Vincent de Paul (Latin: Societas Filiarum Caritatis a Sancto Vincentio de Paulo; abbreviated DC), commonly called the Daughters of Charity or Sisters of Charity of Saint Vincent de Paul, is a society of apostolic life for women within the Catholic Church. Its members make annual vows throughout their life, which leaves them always free to leave, without the need of ecclesiastical permission. They were founded in 1633 by Vincent de Paul and state that they are devoted to serving the poor through the corporal and spiritual works of mercy.

They have been popularly known in France as "the Grey Sisters" from the color of their traditional religious habit, which was originally grey, then bluish grey. The 1996 publication The Vincentian Family Tree presents an overview of related communities from a genealogical perspective. Members use the initials DC after their names.