Schott
Emerson Fusite
Shinko Electric
Elan Technology
Winchester Tekna
Electrovac
Hermetic Solutions
VAC-TRON
Amphenol Martec
AMETEK
Koto Electric
SGA Technologies
Rosenberger
Dietze Group
Specialty Seal Group
Complete Hermetics (Aegis Technology)
HS-tech Co. Ltd.
CIT Ireland Limited
Hermetic Seal Technology