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Madeline Costelli Pettry, P.E.
President
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Maddie@Simpkins-Costelli.com
Michael R. Costelli, P.E.
Vice President
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Michael@Simpkins-Costelli.com
Anthony Imhoff
Project Engineer
Anthony@Simpkins-Costelli.com
Hunter Frierson
Construction Administrator
Hunter@Simpkins-Costelli.com
CADD Operators
Taylor Jakins
CADD Operator
TaylorJ@Simpkins-Costelli.com
Lainey Aschenbach
CADD Operator
Lainey@simpkins-costelli.com
Administrative Staff
Sheila McLaughlin
Office Administrator
SheilaM@Simpkins-Costelli.com