Producer
Sigma Plastics Group
Sigma Plastics Group (Lyndhurst NJ; private — family-owned by the Kronfeld family; ~$3B estimated revenue) is the largest privately held PE film manufacturer in the United States. Sigma operates approximately 12 manufacturing plants across the US South and Midwest producing stretch pallet wrap (LLDPE), agricultural film, shrink film, and food-grade PE film. Sigma's stretch wrap production alone makes it one of the top three stretch film producers in North America. Unlike its publicly traded peers (Berry, Sealed Air, Amcor), Sigma focuses almost entirely on commodity PE blown and cast film — primarily stretch pallet wrap sold to distribution centers, food manufacturers, and retailers. Sigma is the largest US buyer of LLDPE resin from Gulf Coast petrochemical producers (ExxonMobil Chemical, Dow, LyondellBasell, Chevron Phillips Chemical). Sigma's private ownership means minimal public disclosure but its resin purchasing volume is tracked by petrochemical companies as a leading indicator of US stretch film demand.
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1 input Sigma Plastics Group supplies
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Stretch Film (Logistics & Industrial)
45%Agricultural Film
30%Shrink Film & Retail Packaging
20%Specialty PE Films
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Did you know2024
Sigma Plastics' dominant product is stretch film for pallet wrapping — the transparent film that holds palletized goods together in warehouses, retail distribution, and logistics. The same Sigma plants also produce agricultural film for greenhouses (covering growing areas to control temperature and light), silage film (for baling hay and fermented feed), and mulch film (for weed control in field crops). The logistics supply chain (every pallet in every warehouse wrapped in Sigma stretch film) and the agricultural supply chain (every greenhouse and silage bale using Sigma agricultural film) share the same US PE film manufacturing base. An LLDPE resin shortage or Sigma plant disruption simultaneously affects both commercial logistics and crop production infrastructure.
Sigma Plastics Group ↗Origin2023
Sigma Plastics Group was founded by the Kronfeld family and grew from a small US polyethylene film operation into the largest privately held PE film manufacturer in the country. The Kronfeld family built Sigma through organic growth and acquisitions of regional PE film plants across the US Sun Belt and Midwest, maintaining private family control throughout. Unlike most major packaging companies that have public shareholders, Sigma's private structure allows multi-decade capital investment in film extrusion lines without quarterly earnings pressure — enabling the scale necessary to undercut public competitors on commodity stretch film pricing.
Sigma Plastics Group ↗