Illumina, Inc. provides sequencing and array-based solutions for genetic and genomic analysis, serving customers in various markets involved in research and clinical settings for applications in life sciences, oncology, reproductive health, and more. The company sells instruments, consumables, genotyping and sequencing services, instrument service contracts, and development and licensing agreements, as well as testing services. Illumina's customers include various research centers, academic institutions, hospitals, commercial molecular diagnostic laboratories, and more, and the company markets and sells its products directly to customers worldwide.