WST vs IFF 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.

International Flavors & Fragrances is the largest specialty ingredients producer globally. It sells ingredients for the food, beverage, health, household goods, personal care, and pharmaceutical industries. The company makes proprietary formulations and partners with customers to deliver custom solutions. Through its taste and scent segments, which each generate around 25% of profits, IFF is a leading flavor and fragrance producer. The health and biosciences business, which generates 30% of profits, is a global leader in probiotics and enzymes. The remaining profits come from the food ingredients business, which sells texturants, plant-based proteins, and other ingredients, though IFF plans to divest it in a deal expected to close in 2027.