Headquartered in San Diego, California, Illumina (ILMN) is a US company engaged in development and marketing of genetic analysis solutions and life science services. The company employs over 5,500 people. Illumina offers a portfolio of instruments featuring NovaSeq Sequencing Systems, HiScan Array Scanner and others. Illumina's regional subdivisions operate in the US, Brazil, the UK, Chine, Japan, Australia, Netherlands and Singapore. The company shares are traded on the NASDAQ stock exchange and constitute the S&P 500 index.