Charles Buck is President and Chief Executive Officer of United Church Funds (UCF), which provides sustainable and responsible investing solutions for faith-based non-profit organizations. Charles is an ordained minister of the United Church of Christ, and prior to UCF he served as the conference minister (judicatory executive) of Hawai`i and New Hampshire, and was a minister of local churches in Northern California and Hawai`i.

Charles has served on the boards of numerous non-profit organizations including ecumenical, health, education, publishing and civic organizations.

Born in San Francisco, he graduated from the University of California at Berkeley, earned his Masters of Divinity from San Francisco Theological Seminary, and holds a Ph.D. in historical musicology from Stanford University. He is married to Susan, and they have two adult children.