Iota Omicron Sigma Alumnae Chapter of Sigma Gamma Rho Sorority, Inc.


Greater Service, Greater Progress

Warm greetings from the Iota Omicron Sigma Alumnae Chapter of Sigma Gamma Rho Sorority, Incorporated!


We sincerely extend a welcoming hand and invite you to explore our website, perhaps as your first introduction to our sorority and chapter. Better yet, connect with us in person and begin the journey to experience all that embodies the indelible spirit of Sigma.


From participating in our national programs and projects to diligently serving within our local community, we enthusiastically work to effect the vision espoused by our illustrious founders through “Greater Service, Greater Progress." Renowned for our love of scholarship, purposeful service, mindfulness and sisterhood, we collaborate to continuously nurture and grow the distinctive, unwavering strength of our chapter and thus our sorority at large.


Please take a few moments and get to know the ladies of Iota Omicron Sigma! We invite you to join us for community events. We also encourage Sorors who may be visiting or residing within the Greater Columbia, South Carolina area to embrace the “IOS experience!” After viewing our site, if you have additional questions or are interested in membership, please contact us at 


In Service,

Wendellyn Ladapo


Interested in Becoming a Member?

Sigma Gamma Rho Sorority, Incorporated accepts new members on undergraduate and graduate levels. Potential members into the graduate level must have a bachelor's degree from an accredited four-year educational institution and demonstrate community involvement, professionalism, leadership ability, and high moral standards. We encourage you to attend one of our informational sessions, join us in a community service event, and/or drop-in to one of our social events to learn more about our chapter.

  • To contact a Membership Representative in our Southeast Region, please view the Southeast Region's webpage to complete a membership form:
  • To contact our undergraduate chapter at Allen University, please send an e-mail to or visit their Facebook page

*Iota Omicron Sigma Alumnae Chapter abides by the sorority's hazing policy. Hazing is not tolerated in any form.* 

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P.O. Box 7736 Columbia, SC 29202 / 2017