1918
1918
Established as George Datema & Sons
1925
1925
George Datema & Sons builds first commercial building on Plainfield Ave in Grand Rapids.
1934
1934
George Datema & Sons builds first Meijer Grocery in Greenville, MI
1946
1946
George Datema & Sons Builders is incorporated
1957
1957
George Datema & Sons completes Central Reformed Church on College & Fulton
1963
1963
Triangle Associates is incorporated
1969
1969
George Datema & Sons builds Sears and Roebuck building
1975
1975
Triangle builds Fish Ladder. Designed to allow migrating fish a means of circumventing the powerful water flow at the man-made rapids in the Grand River.
1982
1982
Triangle builds Charlie’s Crab
1987
1987
Triangle restores the historic Ledyard Building in downtown Grand Rapids
1993
1993
Craig Datema becomes President of Triangle Associates
1994
1994
Spectrum Health Musculoskeletal Center is completed
2001
2001
Triangle completes it’s first LEED Certified project—The Herman Miller C-1 Building and MarketPlace
2002
2002
Goodwillie Environmental School is completed. Triangle Associates moves to its current office at Three Mile Road NW.
2004
2004
Forest Hills Fine Arts Center is completed, and among the first facilities of its type to be LEED certified by the United States Green Building Council
2005
2005
Saint Mary’s Lacks Cancer Center is completed as Michigan’s first LEED Certified hospital
2007
2007
Triangle starts working with Wal-Mart Stores
2007
2007
The first American Cancer Society Hope Lodge is completed in Michigan
2010
2010
Urban Institute for Contemporary Arts is completed. UICA was one of the nations first LEED certified facilities that unites non-profit, government, retail and residential components
2015
2015
Fox Ford Chicago is completed. The facility is LEED certified and serves as the largest Ford/Lincoln dealership in the United States.
2016
2016
A 1923 city landmark, The Rowe, is restored.
2018
2018
Triangle Associates turns 100 YEARS STRONG