The joint venture will see more than 50 events hosted jointly each year, including flagship events like OBJ's CEO of the Year Awards and the Chamber's Ottawa Business Achievement Awards.
The announcement was made at the Eggs n' Icons breakfast Wednesday morning at the Sheraton Ottawa Hotel.
"Our annual awards show will literally double in size, instantly increasing the prestige of the awards for the winners who are competing in what is now the largest event of its kind in the city," said Michael Curran, OBJ's publisher.
"This venture has shown that by co-operating, rather than competing, our organizations can deliver the high-impact events our community is looking for."
Both organizations are working on the 2012 events lineup, which will benefit from bringing the business community "under one roof," added Erin Kelly, the Chamber's executive director.
"It will facilitate better cross-city networking, and allow us to integrate our resources to offer game-changing networking events in terms of technology, brand, style and the calibre of speakers we attract. There is no question this will be the go-to events for the business community in our city."