Commercial Mask Production

Here is the contact information for some commercial mask makers:

USA
HTA Photomask San Jose, CA
Martin Photomask Escondido, CA
Advance Reproductions Corp. North Andover, MA
Photomask Portal

International
JD Photo-Tools Ltd Oldham, Lancaster, UK

Other University Photomask Producers
Purdue University West Laffaette, IL