Since 2000 the firm has expanded through mergers and acquisitions of consulting firms in multiple locations. Some have been folded into the IBI Group brand and others have maintained a distinct identity.[9] The major acquisitions below are listed in chronological order.
Cumming Cockburn
In 2004, IBI Group acquired the Ontario architecture and consulting firm Cumming Cockburn, as well as its subsidiaries CCL Consultants and Marshall Cumming & Associates.[14]
Vancouver office
The Vancouver office expanded through the 2005 merger of Hancock Bruckner, Eng + Wright; Lawrence Doyle Architects; and Young + Wright Architects.[9][15]
Grey-Noble & Grey-Noble
In 2005 the Newmarket, Ontario-based architectural firm of Grey-Noble & Grey-Noble was acquired.[16]
Thomas Blurock Architects
In 2006 the Costa Mesa, California-based educational project-focused firm of Thomas Blurock Architects was acquired and incorporated.[17][18]
Page+Steele
In 2008 the Toronto-based firm of Page+Steele, Architects was acquired and operates as Page+Steele/IBI Group.
Gruzen Samton Architects
In 2009 the New York City based firm of Gruzen Samton Architects, Planners & Interior Designers was acquired. The firm was founded in 1936 as Kelly & Gruzen and operates as IBI Group.[19][20]
Group Architects
In 2009 the small Toronto-based firm of Group Architects was acquired. IBI relocated and redistributed its team to a new location and the company and presence dissolved entirely through the following years.
BFGC Architects Planners
In 2009, BFGC Architects Planners, with offices in Bakersfield, San Luis Obispo and San Jose, California, was acquired.
Nightingale Architects
In 2010, Nightingale Architects, with four offices in the United Kingdom, including in London and Cardiff, was acquired for £13.1 million.[21][22]
Dull Olson Weekes Architects
In 2010, IBI acquired the Portland, Oregon-based firm of Dull Olson Weekes Architects, a regional specialist in the design of educational facilities with offices in Portland and Seattle, Washington. It has received multiple awards for its work, including the CEFPI/A4LE James D. MacConnell Award for excellence in design and planning, in 2009 for the Rosa Parks School and Community Campus at New Columbia, in 2014 for Trillium Creek Primary School, and in 2020 as a finalist for Mary Lyon Elementary School.[23][24][25] The firm operates as IBI Group Architects.
Cardinal Hardy Architectes
In 2011, the Quebec-based firm of Cardinal Hardy merged with Beinhaker Architecte (within the IBI Group), and became known as Cardinal Hardy Beinhaker Architecte. Groupe Cardinal Hardy merged into the IBI Group. Three years later, in late 2014, it was sold to Montreal-based architecture group Lemay.[26]
Carol R. Johnson Associates
In 2011 the Boston based landscape architecture firm Carol R. Johnson Associates was acquired.[27]
Bay Architects
In 2011 the Houston, Texas-based firm of Bay Architects was acquired.[28]
Taylor Young
In 2012, Taylor Young, a United Kingdom-based architectural and master-planning practice headquartered in Cheshire and with offices in Liverpool and London, was acquired.[29]
M-E Companies
In 2012, M-E Companies, an Ohio-based engineering firm with offices in Westerville, Cincinnati and Canton was acquired.[30]
Aspyr
IBI acquired the British Columbia-based Aspyr Engineering on September 3, 2019.[31]
Cole Engineering Group
IBI acquired the Cole Engineering Group on December 1, 2020.[32]
