OCA 2020 Trade Show & Symposium. Coming soon! Registration for the 2020 OCA Trade Show & Symposium. February 26 & 27, 2020 @ EY Centre.
Projects. OCA is a strategic pipeline of construction project.
The OCA hosts numerous events throughout the year. Stay.
Contact Information. 9 Antares Drive Ottawa, ON K2E 7V5.
Employment Opportunities. The OCA will post employment.