> DIVERSIFIED TECHNOLOGIES AND SOLUTIONS, INC. Minnesota Since: 1988 DIVERSIFIED TECHNOLOGIES AND SOLUTIONS, INC.
> NORTHERN TECHNOLOGIES INTERNATIONAL CORPORATION Minnesota Since: 1997 NORTHERN TECHNOLOGIES INTERNATIONAL CORPORATION
> NORTH METRO ORTHOTICS AND PROSTHETICS, INC. Minnesota Since: 2002 NORTH METRO ORTHOTICS AND PROSTHETICS, INC.
