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.

International Paper Company produces and sells renewable fiber-based packaging and pulp products in North America, Latin America, Europe, and North Africa. It operates through two segments, Industrial Packaging and Global Cellulose Fibers. The company offers linerboard, medium, whitetop, recycled linerboard, recycled medium and saturating kraft; and pulp for a range of applications, such as diapers, towel and tissue products, feminine care, incontinence, and other personal care products, as well as specialty pulps for use in textiles, construction materials, paints, coatings, and others. It sells its products directly to end users and converters, as well as through agents, resellers, and distributors. The company was founded in 1898 and is headquartered in Memphis, Tennessee.

Amcor plc develops, produces, and sells packaging products in Europe, North America, Latin America, and the Asia Pacific. The company operates in two segments, Flexibles and Rigid Packaging. The Flexibles segment offers flexible and film packaging products in the food and beverage, medical and pharmaceutical, fresh produce, snack food, personal care, and other industries. The Rigid Packaging segment provides rigid containers for various beverage and food products, including carbonated soft drinks, water, juices, sports drinks, milk-based beverages, spirits and beer, sauces, dressings, spreads, and personal care items; and plastic caps for various applications. It sells its products through its direct sales force. The company was incorporated in 1926 and is headquartered in Zurich, Switzerland.

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.

Silgan Holdings Inc., together with its subsidiaries, manufactures and sells rigid packaging solutions for consumer goods products in the United States and internationally. It operates through three segments: Dispensing and Specialty Closures, Metal Containers, and Custom Containers. The Dispensing and Specialty Closures segment offers a range of metal and plastic closures, and dispensing systems for food, beverage, health care, garden, home, personal care, beauty products, and hard surface cleaning products, as well as capping/sealing equipment and detection systems. The Metal Containers segment manufactures and sells steel and aluminum containers for food products, such as pet food, vegetables, soups, proteins, fruits, and other miscellaneous food products, as well as general line metal containers primarily for chemicals. The Custom Containers segment manufactures and sells custom designed and stock plastic containers for use in personal care and health care; food and beverage; household and industrial chemical; pharmaceutical; pet food and care; agricultural; automotive. This segment also provides thermoformed barrier and non-barrier bowls, and trays for food products, such as soups, other ready-to-eat meals, and pet food products; and plastic closures, caps, sifters, and fitments, as well as thermoformed tubs for food, household, and personal care products. The company markets its products primarily through direct sales force, as well as through a network of distributors, and an online shopping catalog. The company was founded in 1987 and is headquartered in Stamford, Connecticut.

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.

WestRock Company, together with its subsidiaries, provides fiber-based paper and packaging solutions in North America, South America, Europe, Asia, and Australia. It operates through four segments: Corrugated Packaging, Consumer Packaging, Global Paper, and Distribution. The Corrugated Packaging segment produces containerboards, corrugated sheets, corrugated packaging, and preprinted linerboards to consumer and industrial products manufacturers, and corrugated box manufacturers. It also provides structural and graphic design, engineering services and custom, and proprietary and standard automated packaging machines; turn-key installation, automation, line integration, and packaging solutions; machinery solution that creates pouches; and pack temporary displays, as well as lithographic laminated packaging products. The Consumer Packaging segment manufactures and sells folding cartons that are used to package food, paper, beverages, dairy products, confectionery, health and beauty, and other household consumer products, as well as express mail packages for the overnight courier industry. It also offers inserts and labels, as well as rigid packaging and other printed packaging products, such as transaction cards, brochures, product literature, marketing materials, and grower tags, and plant stakes; and paperboard packaging for over-the-counter and prescription drugs. In addition, this segment manufactures and sells solid fiber and corrugated partitions, and die-cut paperboard components. The Global Paper segment manufactures containerboard, paperboard, and specialty grades primarily to corrugated packaging, folding carton, food service, liquid packaging, tobacco, and commercial print markets. The Distribution segment distributes corrugated packaging materials and other specialty packaging products, including stretch films, void fills, carton sealing tapes, and other specialty tapes; and provides contract packing services. The company is based in Atlanta, Georgia. As of July 5, 2024, WestRock Company operates as a subsidiary of Smurfit Kappa Group Plc.