Thomas Sonni

Founder & President

Mr. Sonni founded Greater Mission in 2006 so that he might expand his life’s work, assisting the Church to plan and fund the greatest mission ever conceived: To know Jesus Christ and make Him known. Tom brings thirty-three years of experience in serving Catholic dioceses, parishes, schools, and agencies. He has been a thought leader in the Church on matters of discipleship, stewardship, and development, serving on the Board of the International Catholic Stewardship Council.

Mr. Sonni built a school planning model in the Diocese of Harrisburg and has been a part of numerous parish and school planning and funding efforts. He has guided efforts that have raised over $400 million for the Church. Before founding Greater Mission, Tom served as the executive leader of diocesan-wide development and stewardship programming in the Diocese of Harrisburg and the Archdiocese of Baltimore. In addition to contributing articles to professional journals, Tom has frequently spoken at national and regional conferences. He also served on the board of Christlife, an international Catholic evangelization ministry.

Tom and his wife Sharon have been married for more than 40 years and live in central Pennsylvania. Tom collaborated with Cardinal William H. Keeler in writing a book entitled Real People Real Presence, founded an ecumenical prayer ministry, brought the Cornerstone parish retreat program to the Archdiocese of Baltimore, and actively leads a parish men’s group. Prior to committing to full-time work in the Church, Tom led The Business Support Group and served as the co-publisher of the Central Penn Business Journal.

Greater Mission has developed into a leading stewardship and development firm that exclusively serves the Church and faith-based organizations throughout the country.

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