DORT-A TIP MALZ SAN ITH IHR TIC LTD STI

Propper Manufacturing Company, Inc. is a family-owned medical device manufacturer established between 1935–1945 and headquartered in Long Island City, New York. The company specializes in sterilization and infection control monitoring products, with a primary focus on chemical indicators, biological indicators, and process challenge devices for steam and ethylene oxide (EO) sterilization cycles. Propper serves healthcare facilities, dental offices, veterinary clinics, biotech, and pharmaceutical manufacturers. The company's flagship product, the Vapor Line® Integrator, is a chemical indicator for steam sterilization monitoring; the company has also recently achieved FDA clearance for EO Chex™, the first FDA-cleared EO indicator tape in the U.S. market. Propper emphasizes Made-in-America manufacturing, ISO 9000 and ISO 13485:2016 certification, FDA compliance, and eco-friendly practices, including lead- and heavy-metal-free formulations. With fewer than 500 employees and approximately $27.9 million in annual revenue, Propper remains a key supplier of sterilization assurance solutions to healthcare providers and allied sectors.