Formerly known as Precision Human BioLaboratories Inc, Ridge Diagnostics, Inc is a neurodiagnostic company organized around development of blood-based tests to diagnose and monitor neuropsychiatric disorders. Thefirm offers MDDScore, a multi-analyte simple blood test for the diagnosis and treatment monitoring of major depressive disorder (MDD). The company researches, develops, and commercializes multi-variant biological maker assays and diagnostic algorithms to diagnose, select, and monitor treatment for MDD and other neuropsychiatric disorders through its human biomarker library and biomarker hyper-map technology platform. It serves its products to psychiatrists. Formerly dba Precision Human Biolaboratory Inc. Ridge Diagnostics, Inc. The company is reported as now closed.