3M Company - Converter Markets
3 Sigma Corporation

Curbell Plastics
Demak America, Inc.
IPG Photonics
Kiwo, Inc.
Lawrence & Frederick, Inc.
Lumitex, Inc.
MacDermid Autotype, Inc.
Marabu North America, LP
Mathias Die Company
Memcon North America
My Press Needs, LLC

Nazdar Inks & Coatings
NBC Meshtec Americas Inc
Necal Corporation

Piedmont Plastics
Polymershapes, LLC
Regal Graphics
SAATI Americas Corp.
SABIC Functional Forms
Sakurai USA
Sign-Tronic AG
Tekra, LLC
Thieme Corporation
Yupo Corporation America
Zund America

GPI has a long and rich history, with the following companies elected to original membership in 1951.

Adams, S.G.
American Name Plate
Anderson & Sons
Chicago Name Plate
Chicago Thrift Etching
Detroit Name Plate
E.V. Yeuell, Inc.
Electro-Chemical Engraving Company
Etched Products
General Etching
George J. Mayer
Hanson, C.H.
K & B Name Plate
Kennedy Name Plate
Master Etching
Metal Decorating
Metal Etching Company, Inc.
Miller Dial & Name Plate
Northern Engraving Corporation
Premier Metal Etching
Texas Nameplate Company, Inc.
Twin City Stamp & Stencil
Ward’s Name Plate