Harrison is the Founder & Principal at Social Impact Advisory Group.   He is a certified fund raising executive (CFRE) and  has over fourteen years of experience in the nonprofit sector, with a focus on philanthropy, communications, and community engagement.

He is passionate about building relationships and communities that drive positive social impact. He has deep expertise in constituent engagement, individual and digital fundraising, and relationship management. He has worked with boards and donors at all levels, from annual fund to seven-figure gifts. He has also led infrastructure projects, such as the implementation of a new marketing automation tool and an enterprise-wide CRM upgrade. He is an agile team leader who can manage staff, contractors, and cross-functional teams. He has also been responsible for budgets and revenues up to $4 million.

Harrison is also the author of Amplifying Impact: Unlocking Innovation, Equity and Capacity in Nonprofits, a book that explores the challenges and opportunities facing the nonprofit sector in the 21st century. The book was published in May 2022 and debuted as a #1 New Release on Amazon. Harrison's mission is to share his insights and best practices with other nonprofit leaders and professionals who want to make a difference in the world.