MACTAC
MATCO Tools
Massillon Community Hospital
McDonald's Corporation
Matrix Essentials Incorporated
McGraw Edison Company
McLane Grocery Company
Medical Mutual of Cleveland
Merck & Co., Inc.
Midland-Ross Corporation
The Miller Brewing Company
MK Architectural Metal, Inc.
Mobil Chemical
Monsanto Chemical Company

Molded Fiber Glass Companies
Mt. Sinai Health Institute
Namco Controls, Incorporated
National City Bank of Cleveland
NCR Corporation
Norandex Building Products
North Coast Distributing Inc.
North Coast Latex
Norton Company
Ohio Bell Company
Ohio Edison Company
Ohio Power Company
Olsher Metals Processing Corp.