OREPA (Old Royalists Engineering Professionals' Association) is a prominent brand that belongs to the Royal College Union. Established in 2014, it serves as a platform for engineers, architects, quantity surveyors, and other professionals in allied fields who are alumni of the Royal College. OREPA aims to give back to their Alma mater through various initiatives.

These include providing career guidance to students, promoting engineering professions amongst students and school leavers, sharing knowledge and practices in engineering-related fields, offering scholarships and financial assistance for engineering education, and supporting the initiatives of the Royal College Union and its affiliated associations. Furthermore, OREPA is committed to sustainable development and endeavors to uplift various focus areas such as air, water, soil, and biodiversity, energy, manufacturing and production, construction, agriculture and fisheries, transportation, and tourism. The organization acts as a reservoir of knowledge, technical expertise, and material support in engineering and related fields for the benefit of the College and its students.

OREPA also has a Student Chapter which actively engages in projects at the Royal College and in the wider society. With a focus on technology commercialization, transfer, and mentoring, youth activism, sustainable development, democratic citizenry, and fostering self-learning, OREPA strives to make a positive impact on the community at large. Connect with OREPA on Facebook, LinkedIn, and Twitter to stay updated on their endeavors