Started in 1910 and incorporated in 1916, American Casting & Mfg. Corp. manufactures tamper-evident security seals and related products from its Plainview, New York facility. Now in its fourth generation of family ownership, the company combines more than a century of seal-making experience with custom printing and barcoding for applications ranging from cargo protection to utility meters. Its manufacturing system meets ISO 9001 requirements, and its plastic security seals are made in the USA.
ISO 9001:2015
ISO 17712 High Security
C-TPAT Compliant
Compliance program
United Security Seals, IncWith roots in United Seal Company, founded in 1900, and Porter Safety Seal, founded in 1905, United Security Seals has more than 110 years of security-seal manufacturing history. Based in Columbus, Ohio, the company makes tamper-evident seals for public and private-sector customers and is identified as North America’s largest manufacturer of lead and wire seals.COLUMBUS, OH
Cambridge Security SealsCambridge Security Seals is a privately owned American manufacturer headquartered in Pomona, New York, known for producing security seals in the United States. Its work centers on helping organizations protect goods and maintain accountability, with quality management supported by ISO 9001:2015 certification.POMONA, NY
Alert Security ProductsFrom its Bolivar, Ohio plant, Alert Security Products manufactures tamper-evident security bags for organizations moving sensitive materials through a chain of custody. A specialized division of Primary Packaging Inc., the company controls production from polyethylene film extrusion through printing and bag conversion, and makes its products in the USA. Primary Packaging was founded in 1990, while the Bolivar facility opened in 1996 and doubled its manufacturing capacity in 2018; Alert is also ISO 9001:2015 certified.EASTON, PA
Sealing DevicesSealing Devices grew from Terry Galanis Sr.’s $157 home-based venture in Alden, New York, into a third-generation family-owned company serving critical applications. Founded in 1963, the Lancaster-based manufacturer supports customers with custom sealing work and related engineering guidance, while maintaining a 225,000-plus-square-foot manufacturing footprint and serving all 50 states and more than 20 countries. Its quality systems have been certified to ISO 9001:2015 and AS9100D.LANCASTER, NY