BTR Engineering
​Main Office Phone:    
​312-635-6331
​Office Fax:
​312-635-6332
​Erika L. Bolger:
​312-635-6334
John M. Thomas: ​
​312-635-6339
​Adam T. Rosenthal:
​ 312-635-6333
Employment: ​To apply for employment with BTR Engineering, please contact one of our principals. 
BTR Engineering
​​104 N. Oak Park Ave., Ste. 201
Oak Park, IL 60301
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BTR Engineering, LLC.
104 N. Oak Park Ave., Ste. 201
Oak Park, Il 60301
​Main Office Phone:  312-635-6331
Office Fax:  312-635-6332
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