Inland Steel
J.I. Case
Sportsman’s Park
Burlington Northern Railroad
Mercury Marine
Helene Curtis
Mansville Corporation
Phillips 66 Pipeline
Rockwell International
Brunswick Corporation
MacLean Fogg
Wicks Organ Company
Midstates Wire
Allen Bradley
US Steel
Andrews Corporation
G.D. Searle
Stokely USA
Nalco Chemical
Bee Chemical
Mazer Chemicals
Akzo Chemical
Stauffer Chemicals
Amoco Pipeline
Quaker Oats
Rhone Poulenc
McDonald’s Corporation
LTV Steel
General Electric Railcar
Acme Steel
American Cyanamid
Vulcan Material
Westshore Pipeline
Manson Metals
Benz Metal Products
Pit Pro Corporation
IEC Industrial Coatings
Perr Truck Body
Chase products
Schaumburg Nissan
Fel Pro
Perry Spencer Telephone
Mulberry Telephone
Gridley Telephone

Pizza Hut
Durkee/Van Denberg Foods
Twin Disc
Wrigley Company
Culligan International
Waukesha Castings
Badger State Tanning
A.E. Staley
General Foam
Illinois Armored Car
Landis Plastics
Wells Manufacturing
Van Guard
Con Air
Sheffield Steel
Fullerton Metals
Roho Inc.
Handling Systems
International Air Filter
Central Soya
McCormick Flavors
Ideal Industries
Air Products and Chemicals
Horsehead Resources
Fast Heat
Tempel Steel
Pan Am Seed
Systems Inc.
Olsen Roofing
Basic Chemical
Cruik Shanks
Liquid Controls Corporation
Thelen Sand & Gravel
Moebius Printing
Egyptian Lacquer
Gibson Electric
Beck Carton
Manufactured Structures
Whitehall Telephone
Harrisonville Telephone
Chapin Telephone


Silver Cross Hospital
Michiana Hospital
Oak Forest Hospital
Jay County Hospital
St. Mary’s Medical Center
Holy Family Nursing Home
North Rockford Convanescent Center

Chicago Lakeshore Hospital
St. Joseph Hospital
Edwards Hospital
Carle Medical Center
Fairbury Hospital
Bartholomew County Hospital
American International Hospital


University of Chicago
University of Illinois
Lincoln College
Millikin University
Morraine Valley College
Indiana University Purdue at Ft. Wayne
Indiana Institute of Technology
Goshen College
Augustana College
Kendall College
University of Wisconsin – Milwaukee
Marquette University
Michigan State University
DeVry Institute
College of Lake County

Morton College
Elmhurst College
Olivet College
Principia College
Lockport School District
Conant High School
Hindsdale School District
Agro School District
Providence High School
St. Bernadettes Church & School
Fenton High School
Mt. Prospect School District
Chicago public Schools
Homer Township School District
Schaumberg High School
Fremd High School


McCormick Place
3rd District Courthouse
Navy Pier
Hoosier Dome
Fermi Labs
Matra Transit
Village of Hoffman Estates
City of Naperville 911
O’Hare Airport
Midway Airport
Chicago Public Library

Chicago Public Library
U.S. Navy
Cook County
State of Illinois
Commonwealth Edison
City of Chicago
General Services Administration
Southern Indiana Gas and Electric
Boone County Jail
Martin County Jail
O’Hare Airport Transit System (OATS)

High Rise Buildings

One South Wacker
333 W. Wacker
Harold Rider Realty
Westminster Management
Blue Cross Blue Shield
Stein and Company
L.J. Sheridan
William Kritt & Company
Arthur Rogers & Company
Klaff Realty
Intercapital Realty
H.M. Walker Realty
Bennett & Kahnweiler
LaSalle Property
LaSalle Partners
Horwitz Matthews Realty
Wirtz Realty
American Mutual Life Insurance
Lake Point Towers
One East Scott Condominium
Heitman Properties

JMB Properties
Revel Development
American Hospital Assoc.
QST Industries
Woodview Trace Realty
MGIC Plaza
First of America Bank
Merchants Bank Plaza
State Life Insurance
American States Life Insurance
1800 Clybourn
First Source Bank
Carson Pirie Scott & Co.
Zayre Corporation
Chicago Marriott
Embassy Suites Indianapolis
Ambassador West Hotel
Talbott Hotel
McCrone Research Lab
Allerton Hotel
Embassy Suites O’Hare
John Buck Company