The following companies deal with Proofing Inks:



All Printing Resources Inc.
ChemInstruments Inc.
Dansen Prepress Corp.
DuPont Imaging Technologies
E.L. Harley Inc.
Eastman Kodak Company
Edward Graphic Supplies Limited
Harper Corporation of America
Harper Scientific
IGT Testing Systems Inc.
JM Heaford Ltd.
Latran Technologies
Pitman Company
Quality Discount Press Parts & Equipment Inc.