WST vs RIVN 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.

Rivian is a battery electric vehicle automaker that sells its vehicles in the US and Canada. The company also develops electronic control units and related software for autos in a joint venture with Volkswagen. Rivian has multiple vehicles in its fleet, which include a luxury truck and full-size SUV and a delivery van. The company plans to begin selling a midsize SUV in 2026. Total deliveries were over 42,000 in 2025. Rivian is also developing autonomous driving software to be used in its vehicles.