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Successor to:
Kelly & Gruzen
Predecessor to:
Gruzen Samton
IBI Group
{+}History + + timeline + + information+ (http://aiad8.prod.acquia-sites.com/sites/default/files/2018-09/History%20of%20IBI%20Group%20–%20Gruzen%20Samton%20–%20IBI%20Group.pdf) captured from company web sites http://www.gruzensamton.com/history and https://ibigroup.com/about-ibi-group in May 2018.
American Architects Directories:
Listing in 1970 American Architects Directory
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