Century Seals is an ISO 9001:2015 certified manufacturing company located in Seaford, Delaware. We manufacture and supply high-quality glass to metal hermetically sealed components and housings in a wide range of configurations: kovar, TO packages, relays, headers, feedthroughs, and machined packaging. With over 100 years of combined experience in our management staff, we have the product knowledge and customer service advantage to serve our customers best.
Incorporated in 1999, Century Seals continues to supply its customers with the highest quality products to give them the advantage they need. Century Seals has established a reputation for excellent customer service. Honest pricing, good communication, and respect for all business contacts have made us a preferred source in the microcircuit packaging industry.
Plating finishes are provided by Fin-Tec, a metal finishing company, wholly owned by Century Seals.
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Company News

Happy Thanksgiving!

Wishing all of our friends in the United States a Peaceful, Safe, and Happy Thanksgiving!   In observance of the holiday, Century Seals wil... Read More

Veterans Day 2023

In observance of Veterans Day, Century Seals will be closed on Friday 10 November, 2023. We extend our sincere gratitude to all Veterans ... Read More

Century Seals - Your Trusted Source for Hermetic Packaging

For over twenty years, Century Seals, Inc. has been a trusted manufacturer of glass to metal hermetic components and housings for aerospac... Read More

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Clients & Industries We Serve




Sight Glass

Gas Detection

Energetic & Pyrotechnics

Microwave & RF