Material Testing & Analysis

CTL Group
Michael Morrison
5400 Old Orchard Road
Skokie IL 60077
w. 847-965-7500 800-522-2285
f. 847-965-6541
ctlgroup.com
mmorrison@ctlgroup.com

David Arbogast, Architectural Conservator
David Arbogast
1803 Pineacre Avenue
Davenport IA 52803
w. 563-355-1553
paintanalysis.com
arbogast5@msn.com

Forest Products Laboratory
One Gifford Pinchot Drive
Madison WI 53726
w. 608-231-9200
f. 608-231-9592
fpl.fs.fed.us
mailroom_forest_products_laboratory@fs.fed.us

Historic Surfaces LLC
Anthony Kartsonas
4121 N Troy Street, Coach House
Chicago IL 60618
w. 773-539-1938
f. 773-539-1938
historicsurfaces.com
anthony@historicsurfaces.com

U.S. Heritage Group, Inc.
John Speweik
3516 N Kostner
Chicago IL 60641
w. 773-286-2100
f. 773-286-1852
usheritage.com
speweik@usheritage.com

Universal Construction Testing, Ltd.
Dr. Boris Dragunsky
1528 Old Skokie Road
Highland Park IL 60035
w. 847-831-5343
f. 847-831-4912
uctgroup.com
boris@uctgroup.com

Wiss Janney Elstner Associates, Inc.
Joshua Freedland
10 S LaSalle Street, #2600
Chicago IL 60603
w. 312-372-0555
f. 312-372-0873
www.wje.com
jfreedland@wje.com

WJE is a firm of structural engineers, architects and materials scientists dedicated to providing practical, innovative and technically sound solutions to problems in landmark buildings.

Wollenberg Building Conservation LLC
Peter Wollenberg
2320 Hampton Avenue
St. Louis MO 63139
w. 314-645-4949
f. 314-645-4990
WBConservation@sbcglobal.net

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