Ottawa Construction Association

Founded in 1889, the Ottawa Construction Association is one of the largest regional construction associations in Canada with more than 1,100 firms active in all sectors of the region's $5-billion construction market. The OCA serves its members in four major ways –Construction Project Information, Education, Networking and Advocacy.

Learn more about the OCA

OCA Construction Comment Magazine - November 2023 issue

Construction Comment is the official publication of the Ottawa Construction Association that is digitally distributed to key decision makers and purchasers in eastern Ontario’s construction industry.

Read the November 2023 issue

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Publish your Certificates with OCA!

Construction purchasers, owners’ representatives and prime contractors can publish Ontario legal notices on Link2Build.ca including; Certificates of Substantial Performance, Notices of Non-Payment of Holdback, Notices of Termination, Certificates of Completion of Subcontract, Notices of Intention to Register a Condominium Link2Build charges a flat fee of just $199 per notice.

Publish your Certificates

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Need to schedule Commissioner of Oath services?

This is a free service for OCA Members. Contact one of the commissioners by email during business hours (8:00am - 4:00pm) stephanie@oca.ca, kaitlyn@oca.ca alex@oca.ca or mjroy@oca.ca Please call ahead for in person service.
Non-members would need to purchase Virtual Witnessing at $17.70 + HST for each document witnessed.

Schedule a Virtual Witness

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Looking for a location to host your next meeting?

Meeting room rentals are for sessions which do not involve an admission or training fee. If you would like to rent a room to conduct training or any type of event for which a fee will be charged, please contact the Ottawa Construction Association directly at: oca@oca.ca and provide us with the details of the event.

Meeting Room Rentals

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OCA Membership

Membership in OCA is your investment to growing your business! Explore our website to learn more about accessing thousands of bid opportunities, marketing your firm’s services or products, growing your business network, professional development opportunities in OCA’s Education program or the numerous cost saving OCA Affinity programs.

Discover Member Services

Membership Pricing

Become a Member

Member Affinity Program

Highlighted Project

Name: Collège Boréal – REnovation at Pavillon Laframboise Hall

Address: 233 Main Street, Ottawa ON K1S 1C4

Closing Date: Monday, December 4th 2023, 2:00 PM EST

See all project opportunities

Latest News/Press releasesSee all news/press Releases

March 30, 2023

OCA Elects Paul Mayer 2023 Chair

The Ottawa Construction Association is pleased to announce that the members of its Board of Directors have elected Tim Vizena, Vice-President of Tomlinson Infrastructure as its 2022 Chair.

March 24, 2023

Congratulations Coffrages Synergy Formwork Recipient of the CCA 2023 Excellence in Innovation Award

The CCA Excellence in Innovation Award recognizes outstanding CCA member firms who have implemented innovative construction practices within the past two years. These practices must have been a “first-time” use or adoption for use in Canada, but may have been previously applied or used elsewhere. The recipient is awarded with the Hugh R. Montgomery Memorial Trophy, which commemorates the life and work of Hugh R. Montgomery, a past president of CCA who gave generously of his time and experience for the general well-being of the industry.

See all upcoming courses

Learn more about OCA's Advocacy Services

Every year thousands of construction projects representing several billion dollars is put out for bid featuring strict tendering and contract conditions. The OCA has traditionally played a key advocacy role to BUYERS of construction shaping those tendering and contract requirements to ensure fairness and transparency. Learn more about the issues that OCA engages Buyers in discussion with and the role of the OCA Standard Practices Committee.

Advocacy