Illumina is a molecular diagnostics company that provides sequencing and array-based solutions for genetic analysis. The company develops, manufactures, and markets integrated systems and life science tools for the analysis of genetic variation and biological function. The company operates its business activities through two segments, namely, Products and Services & Others. These segments provide products and services for sequencing, genotyping, and gene expression markets. The company also provides some reagents like enzymes through its wholly-owned subsidiary Epicentre (US). The company operates through 26 subsidiaries located in the US, the UK, and other countries in Europe and Asia-Pacific regions.