Ibru established an architectural firm, Roye Ibru Associates, which, in 1971, went into partnership with
Alan Vaughan-Richards and Associates to establish the firm of Ibru Vaughan-Richards and Associates (Planning Partnership). As one of the two principal partners of the firm, Chief Ibru was involved in the design and supervision of more than 40 projects across the country. They include:
University of Lagos Sports Centre, Oguta Lake Resort, The Diette-Spiff Civic Centre,
Port Harcourt, Office extension for Elf Nig. Ltd.
Victoria Island,
Lagos University master plan, New Layout Market,
Port Harcourt, Mile 3
Diobu Market,
Port Harcourt,
Sheraton Lagos Hotel & Towers, Ikeja,
University of Benin sports centre,
University of Benin Master plan, Faculty of Science buildings, University of Benin & Ogun State and the
Ogun State Polytechnic Master plan. As consultant to Ibru Prefabs Limited, he was responsible for the design and supervision of several geodesic domes of various dimensions in many parts of the country. In 1971, under the auspices of the
United Nations, he was invited to
Tokyo, Japan, as a member of a panel on foreign investment. In 1974, he delivered a lecture at the
Harvard Business School, in the
United States on Multinationals. It was titled "Emerging Role Of The African Entrepreneur In The Economy And Its Relationship With Multinational Corporations: Competition, Partnership, Cooperation and Absorption". ==Political career==