Mr. Clapp has been an active volunteer for various charitable and civic organizations, including Big Brothers, the United Way, and the Cathedral Arts Midsummer Festival Committee. Mr. Clapp currently serves on the Board of Directors and as President of Lutheran Disability Ministries. Mr. Clapp also volunteers with Christ the Savior Lutheran Church, where he has served as Treasurer, Stewardship Co-chair, President, and a member of the Mission and Vision Team. He currently serves as counsel to the church. In his service for Christ the Savior Lutheran Church, Mr. Clapp prepared requests for and arranged financing for the church's $4 million new building project, prepared and negotiated the construction and architect contracts, and helped administer the project. Mr. Clapp has also played an integral role in restructuring the church's governing structure.