STE vs ILMN Comparison

Steris is an Ireland-domiciled medical technology company focused on sterilization services and infection prevention. The company is the global leader in contract sterilization services, ensuring the safe delivery of single-use and implantable medical equipment to hospitals around the world. Steris also sells sterilizers, washer-disinfectors, and other decontamination equipment and supplies for use by care provider facilities and in biopharma manufacturing sites. Domiciled in the United States before its inversion to Ireland, the firm derives approximately 70% of its revenue from Healthcare Services, 19% from Applied Sterilization Technologies, or AST, and 11% from life sciences services after the divestment of its dental products business.

Illumina provides tools and services to analyze genetic material with life science and clinical lab applications. The company generates over 90% of its revenue from sequencing instruments, consumables, and services. Illumina's high-throughput technology enables whole genome sequencing in humans and other large organisms. Its lower throughput tools enable applications that require smaller data outputs, such as viral and cancer tumor screening. Illumina also sells microarrays (9% of 2024 sales) that enable lower-cost, focused genetic screening with primarily consumer and agricultural applications.