Executive Leadership

Carmel Cooke is the chief financial officer of Ray Graham Association. Since 2004, she has fostered the financial integrity and fiscal health of the organization. With over 30 years of accounting and audit experience in public and private industries, she oversees and directs all finance and business planning activities at Ray Graham Association, including the annual budget and operating and capital planning.

Mark Langan is the chief development officer for Ray Graham Association. Since 2018, he has provided leadership for all fundraising strategies and activities that enable the organization to support more people in more ways. With over 30 years of experience in for-profit and non-profit business, Mark is responsible for gift planning, major gifts, fundraising events, corporate sponsorship, and marketing efforts aimed at raising over $1.7 million annually. 

Caren Musembi is the chief services officer for Ray Graham Association. She began working at Ray Graham Association in 1998, providing direct support to people with disabilities as well as leadership throughout the organization. Since 2016, she has been responsible for all operations, including improving the quality of and range of services offered. A recognized leader in the community, she serves on the Human Services Advisory Committee at College of DuPage and the board of West Suburban Jobs Council.