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