Packaging Corporation of America manufactures and sells containerboard and corrugated packaging products in the United States. The company operates through three segments: Packaging, Paper, and Corporate and Other. The Packaging segment offers various containerboard and corrugated packaging products, such as conventional shipping containers used to protect and transport manufactured goods; multi-color boxes and displays that help to merchandise the packaged product in retail locations; and honeycomb protective packaging products, as well as packaging for meat, fresh fruit and vegetables, processed food, beverages, and other industrial and consumer products. This segment sells its corrugated products through a direct sales and marketing organization, independent brokers, and distribution partners. The Paper segment manufactures and sells commodity and specialty papers, as well as communication papers, including cut-size office papers, and printing and converting papers. This segment sells white papers through its sales and marketing organization. The Corporate and Other segment includes corporate support staff services and related assets and liabilities; and transportation assets, such as rail cars and trucks for transportation. Packaging Corporation of America was founded in 1867 and is headquartered in Lake Forest, Illinois.

Crown Holdings, Inc., together with its subsidiaries, engages in the packaging business in the United States and internationally. It operates through Americas Beverage, European Beverage, Asia Pacific, and Transit Packaging segments. The company manufactures and sells recyclable aluminum beverage cans and ends, glass bottles, steel crowns, aluminum caps, non-beverage cans, and aerosol cans and closures. It also provides manual, semi-automatic, and automatic equipment and tools to apply and remove consumables, such as straps and films; protective solutions, including airbags, edge protectors, and honeycomb products; and steel and plastic consumables include steel strap, plastic strap, industrial film, and other related products. The company serves food industries, including pet food, personal care, household, and industrial products. Crown Holdings, Inc. was founded in 1892 and is headquartered in Yardley, Pennsylvania.

Graphic Packaging Holding Company, together with its subsidiaries, designs, produces, and sells consumer packaging products to brands in food, beverage, foodservice, household, and other consumer products. It operates through three segments: Paperboard Manufacturing, Americas Paperboard Packaging, and Europe Paperboard Packaging. The company offers unbleached, bleached, and recycled paperboard to various paperboard packaging converters and brokers. It also provides paperboard packaging products for consumer packaged goods companies; and cups, lids, and food containers for foodservice companies and quick-service restaurants serving the food, beverage, and consumer product markets, including healthcare and beauty. The company also designs, manufactures, and installs specialized packaging machines. The company sells its products through sales offices, as well as through broker arrangements with third parties in the Americas, Europe, and the Asia Pacific. Graphic Packaging Holding Company was incorporated in 2007 and is headquartered in Atlanta, Georgia.

Reynolds Consumer Products Inc. produces and sells products in cooking, waste and storage, and tableware product categories in the United States and internationally. It operates through four segments: Reynolds Cooking & Baking, Hefty Waste & Storage, Hefty Tableware, and Presto Products. The Reynolds Cooking & Baking segment produces aluminum foil, disposable aluminum pans, parchment paper, freezer paper, wax paper, butcher paper, plastic wrap, baking cups, oven bags, and slow cooker liners under the Reynolds Wrap, Reynolds KITCHENS, and EZ Foil brands in the United States, as well as under the ALCAN brand in Canada and under the Diamond brand internationally. The Hefty Waste & Storage segment offers trash bags under the Hefty Ultra Strong and Hefty Strong brands; and food storage bags under the Hefty and Baggies brands. This segment also provides a suite of products, including compostable bags, bags made from recycled materials, and the orange bags. The Hefty Tableware segment offers disposable and compostable plates, bowls, platters, cups, and cutlery under the Hefty brand. The Presto Products segment primarily sells store brand products in food storage bags, trash bags, reusable storage containers, and plastic wrap categories. It offers both branded and store brand products to grocery stores, mass merchants, warehouse clubs, discount chains, dollar stores, drug stores, home improvement stores, military outlets, and eCommerce retailers. The company was founded in 1947 and is headquartered in Lake Forest, Illinois. Reynolds Consumer Products Inc. is a subsidiary of Packaging Finance Limited.

Sonoco Products Company, together with its subsidiaries, designs, develops, manufactures, and sells various engineered and sustainable packaging products in North and South America, Europe, Australia, and Asia. The company operates Consumer Packaging and Industrial Paper Packaging segments. The Consumer Packaging segment offers round and shaped rigid paper, steel, and plastic containers; metal and peelable membrane ends, closures, and components; thermoformed plastic trays and enclosures; and high-barrier flexible packaging products. The Industrial Paper Packaging segment provides paperboard tubes, cones, and cores; paper-based protective packaging products; and uncoated recycled paperboard products. It also offers various packaging materials, including plastic, paper, foam, and other specialty materials. Sonoco Products Company sells its products in various markets, which include paper, textile, film, food, packaging, construction, and wire and cable. The company was founded in 1899 and is headquartered in Hartsville, South Carolina.

Sealed Air Corporation provides packaging solutions in the Americas, Europe, the Middle East, Africa, Asia, Australia, and New Zealand. It operates through two segments, Food and Protective. The Food segment offers integrated packaging materials and automation equipment solutions to provide food safety, shelf life extension, reduce food waste, automate processes, and optimize total cost for food processors in the fresh red meat, smoked and processed meats, poultry, seafood, plant-based, fluids and liquids and cheese markets under the CRYOVAC, CRYOVAC Grip & Tear, CRYOVAC Darfresh, LIQUIBOX, Simple Steps, and Optidure brands. This segment sells its solutions directly to customers through its sales, marketing, and customer service personnel. The Protective segment provides shrink films, bagging systems, foam, inflatable, and suspension and retention packaging solutions to protect goods to e-commerce, consumer goods, pharmaceutical and medical devices, and industrial manufacturing markets under the SEALED AIR, BUBBLE WRAP, AUTOBAG, Instapak, and Korrvu brands. This segment sells its solutions through supply distributors, as well as directly to fabricators, original equipment manufacturers, contract manufacturers, logistics partners, and e-commerce/fulfillment operations. The company was incorporated in 1960 and is headquartered in Charlotte, North Carolina.

Constellium SE, together with its subsidiaries, engages in the design, manufacture, and sale of rolled and extruded aluminum products for the packaging, aerospace, automotive, defense, and other transportation and industry end-markets. The company operates through three segments: Packaging & Automotive Rolled Products, Aerospace & Transportation, and Automotive Structures & Industry. The Packaging & Automotive Rolled Products segment produces rolled aluminum products, including can stock and closure stock for the beverage and food industry, as well as foil stock for the flexible packaging market. This segment also supplies automotive body sheets and heat exchangers for the automotive market; and specialty reflective sheets. The Aerospace & Transportation segment provides rolled aluminum products, including aerospace plates, sheets, and extrusions; and aerospace wing skins, as well as plates and sheets for use in transportation, industry, and defense applications. The Automotive Structures & Industry segment offers extruded aluminium products and aluminium structural components for the automotive industry, including crash-management systems, body structures, side impact beams, and battery enclosures; and fabricates hard and soft alloy extruded profiles for various industry applications in the automotive, engineering, rail, and other transportation end markets. This segment also provides downstream technology and services, which include pre-machining, surface treatment, research and development, and technical support services. It sells its products directly or through distributors in France, Germany, the Czech Republic, the United Kingdom, Switzerland, and the United States, as well as Shanghai, and Seoul. The company was incorporated in 2010 and is headquartered in Paris, France.

TriMas Corporation engages in the design, development, manufacture, and sale of products for consumer products, aerospace, and industrial markets worldwide. The company operates through Packaging, Aerospace, and Specialty Products segments. The Packaging segment offers dispensing products, such as foaming and sanitizer pumps, lotion and hand soap pumps, beverage dispensers, perfume sprayers, and nasal and trigger sprayers; polymeric and steel caps and closures comprising food lids, flip-top and beverage closures, child resistance caps, drum and pail closures, and flexible spouts; polymeric jar products; integrated dispensers; bag-in-box products; and consumable vascular delivery and diagnostic test components under the Rieke, Taplast, Affaba & Ferrari, Intertech, Omega, and Rapak brands. The Aerospace segment provides fasteners, collars, blind bolts, rivets, ducting, and connectors for air management systems, and other highly-machined parts and components to original equipment manufacturers, supply chain distributors, and tier one suppliers, as well as maintenance, repair and overhaul (MRO)/aftermarket providers; and military and defense aerospace applications and platforms under the Monogram Aerospace Fasteners, Allfast Fastening Systems, Mac Fasteners, TFI Aerospace, RSA Engineered Products, and Martinic Engineering brands. The Specialty Products segment offers steel cylinders for use in the transportation, storage, and dispensing of compressed gases under the Norris Cylinder brand; natural gas powered wellhead engines, compressors, and replacement parts for oil and natural gas production, and other industrial and commercial markets under the Arrow brand; and spare parts for various industrial engines. It sells its products through a direct sales force, third-party agents, and distributors. TriMas Corporation was incorporated in 1986 and is headquartered in Bloomfield Hills, Michigan.