Burning Rock Biotech Limited primarily develops and provides cancer therapy selection tests in the People's Republic of China. It operates in three segments: Central Laboratory Business, In-Hospital Business, and Pharma Research and Development Services.

Sera Prognostics, Inc., a women's health diagnostic company, discovers, develops, and commercializes biomarker tests for improving pregnancy outcomes. The company develops PreTRM test, a blood-based biomarker test to predict the risk of spontaneous preterm birth in asymptomatic singleton pregnancies.

Exagen Inc. develops and commercializes various testing products based on its cell-bound complement activation products technology under the AVISE brand in the United States.

Castle Biosciences, Inc., a commercial-stage diagnostics company, focuses to provide diagnostic and prognostic testing services for dermatological cancers. Its lead product is DecisionDx-Melanoma, a multi-gene expression profile (GEP) test to identify the risk of metastasis for patients diagnosed with invasive cutaneous melanoma.

Sotera Health Company provides sterilization, and lab testing and advisory services in the United States, Canada, Europe, and internationally. The company's sterilization services include gamma and electron beam irradiation, and EO processing; Nelson Labs comprise microbiological and analytical chemistry testing; and advisory services for medical device and biopharmaceutical industries.

Biodesix, Inc. operates as a data-driven diagnostic solutions company in the United States. The company offers blood-based lung tests, including Nodify XL2 and Nodify CDT tests, together marketed as part of Nodify Lung Nodule Risk Assessment testing strategy, to assess the risk of lung cancer and help in identifying the appropriate treatment pathway and help physicians in reclassifying risk of malignancy in patients with suspicious lung nodules.

Neuronetics, Inc., a commercial stage medical technology company, designs, develops, and markets products for patients with neurohealth disorders in the United States and internationally.

Enzo Biochem, Inc., an integrated diagnostics, clinical lab, and life sciences company, researches, develops, manufactures, and markets diagnostic and research products based on genetic engineering, biotechnology, and molecular biology.