UAE OBA was formed in 2005 to ensure old Trinitians in UAE meet fellow Trinitians and actively participate in various events.

TCKAA will conduct its operations to enhance the scholastic excellence and educational outcomes for students at Trinity College Kandy.

OTSC was form to give an opportunity to the present boys to take part in sports at a higher level and gain experience and help those who do not have a chance to represent at club level.

Achieving excellence in rugby at Trinity College through progressive development, coaching consistency, and meaningful competition