C3 Charity Initiative
C3 is the charitable division of Prefix Corporation. The C3 Initiative represents Compassion, Caring, and Community, and every year we select a cause to support through fundraising and awareness events. Our efforts include numerous volunteer hours and special activities, such as our 5K Run & Car Show and the annual Kim A. Zeile Charity Golf Outing. The entire Prefix team is deeply committed to giving back to our community.

In 2025, we are proud to support HAVEN, the only comprehensive program in Oakland County, Michigan, dedicated to helping victims of domestic violence and sexual assault. HAVEN serves nearly 30,000 individuals annually, offering shelter, counseling, advocacy, and educational programs.
We invite you to join us in supporting this crucial work. For more information, visit: www.haven-oakland.org
Would you like support for your charity?
We created the C3 Initiative to support a different charitable organization each year by raising both funds and awareness for their cause. Prefix partners with one charity annually, providing them with focused support. If you would like your charity to be considered for next year’s partnership, please submit a detailed information packet to Prefix during the month of November. We will notify you if your charity is selected.
Attn: C3 Initiative
1400 S Livernois Road
Rochester Hills, MI 48307