The Office of the General Assembly (OGA) is the ecclesiastical arm of the PC(USA). The Stated Clerk leads the OGA and, with his or her staff, works to ensure that the Church maintains itself as a church. The OGA carries out all constitutional and most ecumenical functions at the General Assembly.
The Investment & Loan Program Inc. (ILP) provides low-cost loans to congregations, governing bodies, and PC(USA)-related entities for the construction or purchase of buildings, renovations, and the refinancing of existing debt. ILP also provides investment opportunities that support the church mission.
The Presbyterian Foundation provides stewardship, investment, and related financial services to congregations, mid councils, and PC(USA) ministries. The Foundation also offers a variety of giving and investment options to help individual Presbyterians realize their philanthropic goals.
The Presbyterian Mission Agency (PMA) is the PC(USA) ministry arm. Its goal is to inspire, equip, and connect the Church in three main areas: evangelism and discipleship, servant leader formation, and justice and reconciliation. PMA partners with congregations, mid councils, worshiping communities, mission networks, and other groups to support Christ's disciples.
The Presbyterian Publishing Corporation (PPC) is the denominational publisher for the PC(USA). Its Geneva Press imprint is for a specifically Presbyterian audience. PPC issues materials that cover the spectrum of modern religious thought under its Westminster John Knox Press imprint. Four times a year, PPC produces a devotional magazine, These Days. It also maintains an online ecumenical resource center, The Thoughtful Christian.