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Last updated: February 2026
This directory lists 50 tamper evident closure manufacturers across the United States, from specialty injection molders focused on stock plastic closures to vertically integrated suppliers offering custom tooling and advanced sealing solutions.
Companies seeking these manufacturers are solving critical problems related to product safety, regulatory compliance, and brand protection. They need solutions that prevent product adulteration, ensure consumer confidence, and integrate seamlessly with automated filling and capping machinery. Key challenges often revolve around achieving consistent application torque, selecting the right induction seal liners for product compatibility, and designing breakaway bands that provide clear, irreversible evidence of tampering.
Suppliers in this space range from high-volume injection molding facilities producing standard screw caps and snap-on closures with tamper-evident features, to specialized fabricators developing unique fitments, pour spouts, or CRCs (Child-Resistant Closures) with integrated tamper mechanisms. Some manufacturers specialize in specific materials like HDPE or PP, while others offer a broader portfolio including multi-component assemblies or closures designed for retort processing or cold chain logistics.
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50 companies nationwide
AdvanTech Plastics specializes in large-scale custom plastic injection molding, providing quality plastic caps and closures. The company serves the pharmaceutical, food and beverage, and cosmetics industries with a focus on manufacturing solutions for companies seeking to reshore their production to the United States.
Based in Miramar, FL, American Seals Inc. provides CTPAT certified security seals, including bolt seals, barcoded and numbered security seals, and tamper-evident labels. The company specializes in high-security sealing solutions for cargo and supply chain applications.
Anchor Packaging LLC specializes in manufacturing clear, hinged packaging containers with integrated tamper-evident features. These solutions are designed to provide extra security and discourage tampering for food-on-the-go applications, ensuring product integrity for consumers. The company operates from its facility in St. Louis, MO.
Based in Fort Smith, AR, ARGCO provides specialized tamper-evident closures, including FDC breakable caps made from plastic and aluminum. They also offer quick plugs for fire department connections, focusing on industrial and commercial security applications.
Based in Pompano Beach, FL, BuyHeatShrink.com supplies a comprehensive range of heat shrink tubing and related products, including safety shrink bands that create tamper-evident seals. The company serves professionals across aerospace, defense, automotive, and medical industries, offering UL, RoHS, and MIL-SPEC certified solutions with custom printing.
Cambridge Security Seals (CSS) is a privately-owned US manufacturer headquartered in Pomona, NY. The company specializes in producing 100% Made in America, fully-customizable security seals. These products are designed to provide tamper-evident closures for various industrial and commercial applications.
CMG Plastics manufactures innovative custom plastic packaging and extruded products from its US facilities. They specialize in a wide range of closures, including tamper-evident and child-resistant designs, alongside containers and specialty caps. Serving pharmaceutical, food, and health & beauty industries, they provide comprehensive molding solutions.
Based in Bridgewater, NJ, Controltek specializes in high-quality tamper-evident packaging solutions. The company provides secure transfer products designed for financial institutions and government agencies, ensuring the safe transport of cash and other sensitive items. Their offerings help enhance security protocols.
Based in Tustin, CA, CoolJarz manufactures factory-direct packaging solutions in the USA. They provide custom tamper-evident shrink sleeve label design and printing services for pre-roll tubes, alongside child-resistant pop top tubes and post-consumer recycled plastic containers.
Crown Holdings manufactures diverse metal caps and closures designed for various packaging applications. Their products offer eye-catching visual appeal, easy-open convenience, and crucial shelf life extension, commonly incorporating tamper-evident designs. The company serves commercial and industrial clients with robust packaging solutions.
Based in Mason, MI, Dart Container manufactures a wide range of food and beverage packaging solutions. Their ClearPac SafeSeal containers are specifically designed with integrated tamper-evident features, inhibiting tampering and eliminating the need for additional shrink bands or wrap labels.
Based in Saint Charles, IL, Dickey Manufacturing Company (DMC) produces high-quality, U.S.-made security seals and tamper-evident products. Their offerings span metal, plastic, bolt, and cable seals, plus tamper-evident tape. DMC provides customized security solutions, ensuring asset protection and integrity for businesses across diverse industries.
Based in Boyertown, PA, Drug Plastics & Glass Co., Inc. manufactures high-quality plastic packaging systems, including a wide variety of plastic bottles and closures. They produce continuous thread, snap cap, dispensing, and child-resistant closure styles. The company serves pharmaceutical, supplement, and lifestyle product industries with their comprehensive packaging offerings.
DWK Life Sciences manufactures a comprehensive range of caps and closures, including rubber stoppers, screw thread closures, snap caps, and aluminum seals. Based in Millville, NJ, the company provides precise fitting solutions for diverse applications, encompassing options often engineered for tamper-evident security. They serve industrial and commercial B2B customers.
Edwards Label manufactures custom labels and advanced flexible packaging solutions, including multi-layered labels, shrink sleeves, and rollstock film. The company utilizes digital, flexographic, and lithographic printing methods. They provide various packaging components often used for product branding and tamper-evident applications, operating facilities in California and Illinois.
Based in Vernon, CA, Great American Packaging manufactures custom poly bags and flexible film solutions. With over 50 years of experience, they serve food, medical, and consumer applications. They provide packaging with features like perforated tear-away strips for tamper evidence and permanent tape for secure sealing.
Based in Greenville, SC, Interplas manufactures custom packaging solutions, specializing in shrink wrap and film. They provide preform shrink bands designed to meet strict FDA requirements for the food and drug industries. These offerings serve as tamper-evident closures, ensuring product integrity and safety.
Mega Fortris USA manufactures and designs comprehensive security solutions, specializing in a wide range of tamper-evident seals, bags, and closures. Their products are engineered to protect assets, ensure operational integrity, and prevent unauthorized tampering across diverse industries and supply chains.
ProAmpac is a global flexible packaging manufacturer based in Anaheim, CA. The company specializes in secure and tamperproof packaging solutions, including products for cash deposit management, loss prevention, and evidence. ProAmpac also offers innovative recyclable films, providing creative and sustainable packaging to various industries.
Based in New Albany, OH, Rieke Packaging is a global manufacturer of dispenser pumps, sprayers, caps, and closures. The company produces child-resistant closures and other packaging solutions, serving industries such as beauty, personal care, food, beverage, and pharmaceuticals.
Based in Plainview, NY, American Casting & Manufacturing specializes in producing high-quality security seals and tamper-evident seals. With over a century of experience, the company provides robust closure solutions, ensuring the integrity and security of products for various industrial and commercial applications.
Silgan Closures America specializes in manufacturing closures for the food and beverage industry. As part of Silgan Holdings, they provide a wide range of closure solutions, including tamper-evident options, for various packaging needs.
Based in Mequon, WI, Silgan Specialty Packaging manufactures high-quality plastic containers, closures, and dispensing systems. They provide functional packaging and secure sealing solutions for diverse industries such as food, beverage, personal care, and healthcare. The company offers customized packaging tailored to client needs.
Based in Billerica, MA, SourceCap manufactures and supplies various bottle closures, including tamper-evident solutions like pilfer proof and ROPP closures, alongside non-refillable and custom designs. They offer extensive warehousing, inventory management, and Just In Time delivery services across the United States.
Source One Packaging LLC provides a comprehensive range of packaging solutions, specializing in shrink bands and printed shrink sleeves which serve as tamper-evident closures. The company also offers preforms, rollstock, polyolefin shrink film, stand-up pouches, and various other flexible packaging products for diverse industries.
Based in Hackettstown, NJ, SSP Seals specializes in designing and manufacturing custom industrial seals, parts, and gaskets. They produce FDA-approved components for mechanical, technical, filling, and pharmaceutical equipment. The company offers custom machining without high mold charges, supporting prototypes and blanket orders for OEMs.
Based in Leland, NC, Tri-Tech Forensics provides evidence collection kits, digital forensics equipment, and training. They manufacture Super-Stick Integrity Seals with permanent adhesive, crucial for ensuring tamper-evident security and integrity of evidence on paper, plastic, and metal surfaces in forensic and lab environments.
Guala Closures North America provides advanced tamper-evident and anti-counterfeiting closure technologies. They specialize in innovative closure solutions for premium spirits brands and offer enhanced technical support for the expanding craft wine industry. The company operates facilities in the United States, serving the North American market.
Based in Stanton, CA, White Bottle provides comprehensive bottle packaging solutions for capsules and powders. They offer custom labeling and integrated tamper-evident features, ensuring a professional, retail-ready appearance and product integrity for their clients.
Ameri-Seal, based in Valencia, CA, is a full-service manufacturer specializing in high-quality shrink sleeves and flexible packaging. They offer custom labels, cut & stack labels, and contract sleeving services. With flexographic printing capabilities, the company provides comprehensive solutions from pre-press to finished products.
Aptar manufactures innovative closures and advanced dispensing and dosing systems. Their protection technologies support diverse markets, including pharmaceutical, beauty, food, beverage, personal care, and home care, implying the integration of tamper-evident features. They partner with customers from early concept development through commercialization.
DuPont manufactures Liveo™ Pharma Bottle Closures, offering one-piece silicone stoppers. These are crafted from biomedical-grade platinum-cured silicone elastomer, precisely molded with high-purity platinum for pharmaceutical applications.
Headquartered in Atlanta, GA, Graphic Packaging International manufactures fiber-based packaging solutions for consumer goods. They produce folding cartons, cups, and flexible packaging, incorporating tamper-evident features like glued tabs with tear perforations, security labels, and films that change color once opened. The company ensures product integrity for diverse industries.
Based in Chicago, Illinois, Tri-Sure manufactures caps and closure systems for plastic and metal containers. Their products protect contents, featuring patented locking systems for tamper evidence. These closures create an audible snap during application and removal, ensuring product integrity for various industries.
TydenBrooks, based in Tallapoosa, GA, manufactures tamper-evident security seals, tapes, and labels. As an original innovator, they provide a comprehensive range of high-security products, including bolt, cable, and plastic padlock seals, alongside advanced tracking solutions for various industries.
Based in Westampton, NJ, Atlantic Can Company manufactures custom printed metal tin containers. They also provide tamper-proof heat-sealing shrink bands specifically designed for their food-safe tins, ensuring product integrity. The company offers wholesale packaging solutions for various products.
Based in St. Louis, MO, C.L. Smith manufactures bottles and provides tamper-evident packaging solutions, including secure closures. The company also offers UN certification services and distributes a range of packaging materials and containers.
Comar manufactures caps, lids, and closure systems for vials, jars, and containers. The company provides stock, made-to-order, and custom designed primary packaging and dispensing solutions, serving pharmaceutical, nutraceutical, and household packaging applications.
Closure Systems International manufactures a comprehensive range of narrow-mouth and wide-mouth plastic food closures. These closures are specifically designed for applications such as salad dressings, barbeque sauces, and edible oils, commonly incorporating tamper-evident features essential for food safety and product integrity.
Based in Mansfield, MA, Lacerta Group LLC manufactures tamper-evident film-lidding packaging for grab-and-go and prepared foods. They provide clear, sustainable packaging options, including their ReCERTA™ material made with recycled plastic, designed to extend shelf-life and preserve freshness for commercial clients.
Based in Woonsocket, RI, Saint-Gobain is a manufacturer of high-purity specialty closures for the medical industry. The company produces a range of products including caps, silicone stoppers, and liners, focusing on solutions that ensure container integrity and product safety.
Based in Plattsburgh, NY, MRP Solutions manufactures a full line of high-quality plastic packaging closures, caps, lids, and jars. All products are proudly made in the United States, serving pharmaceutical, nutraceutical, food, home care, and automotive industries.
Based in Prospect Park, PA, Mr. Shrinkwrap manufactures and supplies a variety of shrink wrap films, including PVC shrink bands for tamper-evident container closures. They also offer shrink wrapping services, contract packaging, and sustainable film solutions for various applications.
Patheon, part of Thermo Fisher Scientific, operates as a contract development and manufacturing organization (CDMO) for pharmaceutical products. They provide comprehensive drug development and manufacturing solutions. This includes integrating advanced packaging, such as their patented Tamper Evident Cartons, designed to enhance security and address tamper-sealing concerns in clinical supply chains.
Based in Aurora, IL, PHOENIX manufactures diverse plastic closures for leading brands. They offer numerous in-stock and custom options, including child-resistant, continuous thread, and dispensing closures. PHOENIX serves food, beverage, consumer healthcare, and personal care markets, leveraging extensive design and packaging development capabilities.
Based in Adrian, MN, Sailor Plastics is a custom injection molder specializing in high-quality plastic caps and closures. They manufacture various plastic parts, including snap screw caps with tamper evident breakaway bands, ideal for beverage packaging and other industries.
Winpak provides innovative packaging solutions, including forming films like Medform™ DT, for the healthcare and pharmaceutical markets. They offer one-stop services for medical packaging projects, focusing on agility and quality for critical applications requiring robust sealing and tamper-evident features.
Amcor designs and manufactures a comprehensive range of plastic caps and bottle closures, including screw, snap, and flip-top options. They specialize in advanced closure solutions for various packaging needs, offering child-resistant and tamper-evident features to ensure product integrity and safety for commercial B2B clients.
PDC Healthcare, headquartered in Valencia, CA, manufactures patient safety and identification solutions for the healthcare industry. The company produces high-quality tamper-evident pharmacy seals, medication labels, and closure systems designed to prevent contamination and ensure patient safety. They operate multiple US manufacturing facilities.
Selig Group manufactures innovative sealing, packaging, and material solutions, including induction foil sealing technology. These solutions are a critical component of packaging strategies to ensure product quality and peace of mind for brand owners and consumers. They serve automotive product makers and other industries, offering diverse sealing and packaging options.
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It's crucial to simulate real-world conditions. Work with your supplier to define appropriate drop tests, vibration tests, and temperature cycling tests on filled, sealed containers. Pay close attention to the integrity of breakaway bands and induction seals after these simulations, as external stress can compromise their evidential value.
Beyond basic material compatibility with your product (to prevent corrosion or leaching), consider the container material (PP, PE, PET, glass), the sealing equipment type (air-cooled vs. water-cooled), and desired peel strength. Different liners are engineered for clean peel, weld seal, or even multi-layer applications for enhanced barriers.
Absolutely. Many manufacturers specialize in dual-purpose closures, often combining a tamper-evident breakaway band or shrink sleeve with a two-piece push-and-turn or squeeze-and-turn child-resistant mechanism. Ensuring compliance with ASTM D3475 for CRCs is paramount for these integrated designs.
Extremely critical. Insufficient torque can lead to loose closures, compromised seals, and premature tampering evidence. Excessive torque can damage the threads, over-stress breakaway bands leading to pre-opening breakage, or make the package too difficult for consumers to open. Work with your supplier to establish and maintain a precise torque range for your specific closure and container.
Common issues include incompatible capping chucks or jaws, incorrect torque settings causing cap damage or inconsistent sealing, and insufficient line speed handling. Ensure your supplier provides detailed closure specifications (e.g., neck finish dimensions, cap height, thread profile) and collaborate closely during line trials to fine-tune equipment settings for optimal performance.
Opt for custom design when your product requires unique dispensing features (e.g., fine mist, pump, precise pour spout), has specific aesthetic branding needs, or demands a higher level of anti-counterfeiting security not achievable with standard options. While more costly upfront, custom tooling can offer distinct market advantages and superior functionality.