INDIGO Biosciences, INC | 2,153 followers on LinkedIn. In Vitro Assay Solutions That Work Simply And Simply Work | INDIGO Biosciences is a leading provider of cell-based luciferase reporter assays for nuclear receptors, GPCRs, cytokine receptors, growth factor receptors, and more. INDIGO offers reporter cell lines and all-inclusive assay kits for use by scientists in their own labs, or INDIGO can perform assays as a service. INDIGO products and services are used in a broad range of applications including drug discovery, environmental toxicology, academic/governmental research, and regulatory compliance.