Chartered March, 1947

Geographic Region
Includes the counties of Lincoln, Warren, St. Charles, St. Louis, Franklin and Jefferson. Major cities/towns include St. Louis, Clayton, Warrenton, Wentzville, Union, Washington, Festus, and Hillsboro.

St. Louis Chapter Officers 2025-2026
President - Mark Kollitz, P.E.

President-Elect - Lisa Douglas, P.E.
Treasurer - James MacAdam, P.E.
Secretary - Tyler Wuestling, E.I.

Past President - Sean Martin, P.E.

State Director to MSPE - Jeff Hoevelmann, P.E.

Board Members

Tim Quinn, P.E.

Lisa Cheng, P.E. 

Erin Jearls, P.E.

Chapter Directors
Diane Grossenheidner, P.E.

Ehrin Sleet, P.E.

Erin Jearls, P.E.

Lisa Cheng, P.E.

Ron Black, P.E.

Shelby Sample, E.I.

Awards/Membership Chair

Diane Grossenheidner, P.E.

MATHCOUNTS Chair

Tyler Wuestling, E.I. 

Newsletter/Web Contact

Ehrin Sleet, P.E.

Mailing Address

MSPE St. Louis Chapter

Mark Kollitz
434 Alice Avenue
Kirkwood, MO  63122

St. Louis Chapter Letterhead

St. Louis Chapter By-laws

St. Louis Chapter Foundation By-laws

St. Louis Chapter History

St. Louis Chapter Leadership Manual