Our People

Lindsay Weis-Smith is the President and majority-owner of Weis Design Group (WDG), a civil engineering design firm that focuses on the improvement of municipalities throughout Missouri and Illinois. Mrs. Weis-Smith directs and oversees all business operations, including strategic planning, project management, and financial oversight. She has 16 years of experience working in the engineering industry. Mrs. Weis-Smith worked for the family company in her youth. She assisted with proposals, conferences, and client interaction. She is a member of the St. Charles County Municipal League, St. Louis County Municipal League, and Missouri Parks & Recreation Association.

Tom Weis, P.E. (E-22960 MO, 062-045044 IL) is the Vice-President and co-owner of Weis Design Group (WDG), a civil engineering design firm that focuses on the improvement of municipalities throughout Missouri and Illinois. Mr. Weis directs and oversees all design functions within the firm. He has over 35 years of experience in designing roads, sewers, parks and recreation facilities throughout the Bi-State area. Throughout his youth, Mr. Weis worked for the family company as a civil engineer/surveyor. Mr. Weis is a member of the St. Louis County Municipal League and St. Charles County Municipal League.

Michael J. Shillito, P.E. is Chief Engineer and directs and oversees all civil design and project management functions within the firm. He has over 30 years of experience in designing roads, sewers, bridges, municipal facilities, parks and recreation facilities throughout the Bi-State area. Mr. Shillito is currently managing over $30M in grant preparation, project design and construction inspection for the company. Throughout his career, Mr. Shillito has worked as a land surveyor, materials testing agent, design engineer and project manager. Mr. Shillito is a member of the American Society of Civil Engineers and the National Society of Professional Engineers.

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