Peter Mayer

Peter Mayer holds an M.Arch from Yale University and an A.B. Art, Sc.B. in Engineering from Brown University. Peter founded Mayer Jeffers Gillespie Architects (formerly The Image Factory) in 1974 with a partner. He was previously employed at Woolen Associates, Architects in Indianapolis, Indiana, from 1968 to 1973. He is an Association of Licensed Architects member and a registered architect in Illinois and Wisconsin. 

Email: pmayer@mjgarch.com 

Telephone: 773-935-3011 extension 2


Carrie jeffers

Carrie is a former partner of the firm.


doug gillespie

Doug is a former partner of the firm.


Carlos Pina holds a Bachelor's degree from University of Illinois Chicago. He is a partner at the firm and has been with MJG Architects since 1998. He is an Association of Licensed Architects member and a registered architect in Illinois, Wisconsin and Tennessee.

Email: cpina@mjgarch.com

Telephone: 773-935-3011 extension 3

Carlos pina


Katherine holds a Bachelor's and Master's of Architecture from Tulane University. She is a partner at the firm and has been with MJG Architects since 2018. She was employed as an intern architect at Pappageorge Haymes from 2016 to 2018, LRK INC I from 2014 to 2016, Albert Architecture from 2012 to 2014, and AEDS Ammar Elouini in 2011. She is a Association of Licensed Architects member and a registered architect in Illinois. 

Email: kdelacey@mjgarch.com

Telephone: 708-601-8927

Katherine Delacey


Moid holds a B.Arch from the Illinois Institute of Technology. He joined Mayer Jeffers Gillispie Architect in 2023 and is an associate at the firm. 

Email: mali@mjgarch.com

Telephone: 773-857-1433

Moid Ali


Lillian is the operations manager for the firm.

Lillian Pina