The Grand Chapter is the administrative, executive and judicial head of the Fraternity. This governing board is made up of eight alumnus members of the fraternity.

As put in its mission statement: "The Grand Chapter of Theta Chi Fraternity by setting policy; providing planning, evaluation and leadership; and enhancing the image, solvency and future of the fraternity."

Members of the Grand Chapter are elected for a term of four years, with four members being elected or reelected at each biennial Convention. In order to be nominated, an alumnus member must have graduated at least six years prior to the year in which the Convention is held. A member of the Grand Chapter may be elected for two consecutive four year terms, after which he must step down. No one may serve more than eight years in a period of twelve years.

The Grand Chapter may establish committees to assist in the operation of the Fraternity and to address specific issues, concerns or needs. The committees also provide opportunities for alumnus members to become involved in the Fraternity and to share time and expertise on behalf of Theta Chi.

The Grand Chapter currently has 21 different committees. The committees and their responsibilities range from the Alter Award, Alumni, Convention Credentials and Financial Management to Historical Archives, Leadership Education, Legal Affairs, Regional Plan, Standards, Insurance, Ritual and Scholarship. The National Advisory Committee is made up of all past national presidents and plays a key role in honoring alumni.

Grand Chapter officers are volunteers, and receive no remuneration for their work. As with other volunteers in Theta Chi, they are reimbursed for expenses incurred in their work for the Fraternity, such as costs associated with travel on behalf of Theta Chi.

The following brothers have been elected and appointed as officers at the 152nd Anniversary Convention to serve as officers on the Grand Chapter of Theta Chi Fraternity.