About Us
Join CBS4A
CBS4A is open to all Columbia Business School alumni of African descent — students, graduates, and allies committed to Black business excellence.
Membership
There is a Place For You
Current Students
Columbia Business School students of African descent are automatically part of the BBSA community. Join club activities, leadership programs, and connect with alumni mentors.
Get Involved →Recent Alumni
Graduated in the last five years? CBS4A offers accelerated networking, mentorship pairing, and access to the career development programs designed for early-career members.
Connect Now →Senior Alumni
For alumni further along in their careers — join the Coach Shortlist, participate in the mentorship program, sponsor events, or contribute to the scholarship fund.
Get Involved →What Membership Unlocks
CBS4A membership connects you to a 60-year network of Black business professionals — with real tools for career advancement and community engagement.