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SCI Engineering Headquarters in St. Charles, Missouri Office Locations
SCI Engineering serves clients throughout the Midwest from four strategically-located offices surrounding the St. Louis metro area and an office in Rolla, MO.

For driving directions to all the offices, click here.

Contact Information
St. Charles, Missouri
William J. Guerdan, P.E.
Karl E. Ruhmann, P.E., R.G.
130 Point West Blvd.
St. Charles, MO 63301

Phone: 636-949-8200
Fax: 636-949-8269
  O’Fallon, Illinois
Mark A. Harms, P.E.
Scott Harding, CPSS/SC
650 Pierce Boulevard
O’Fallon, IL 62269

Phone: 618-624-6969
Fax: 618-624-7099
Union, Missouri
Anthony J. Kreutz
47 St. Andrews Drive
Union, MO 63084

Phone: 636-584-7991
Fax: 636-584-7966
 

Rolla, Missouri
Matt Jung
Branch Manager
1114 North Bishop
Rolla, MO 65401

Phone:573-426-4901
Fax: 573-426-4853


Geotechnology SCI Engineering, 130 Point West Blvd, St. Charles, MO 63301