WST vs MAS Comparison

West Pharmaceutical Services is based in Pennsylvania and is a key supplier to firms in the pharmaceutical, biotechnology, and generic drug industries. West sells elastomer-based packaging components (including stoppers, seals, and plungers), nonglass containment solutions, and auto-injectors for injectable drugs, which include large-molecule biologics, peptides such as GLP-1 receptor agonists, and small-molecule drugs. The company reports in two segments: proprietary products (about 80% of total revenue) and contract-manufactured products (about 20% of total revenue). It generates approximately 55% of its revenue from international markets and 45% from the United States.

Masco manufactures a variety of home improvement and building products. The company's $5 billion plumbing segment, led by the Delta and Hansgrohe brands, sells faucets, showerheads, and other related plumbing fixtures and components. The roughly $3 billion decorative architectural segment primarily sells paints and other coatings under the Behr and Kilz brands, but it also sells builder hardware products.